Rare earth ore pool
Publish: 2021-04-20 23:30:49
1. Is bitcoin a virtual currency? His father's words are hard to control by others, or has the final say. Of course, investment is risky.
2. Ion type rare earth ore, which is unique in China, is distributed in southern provinces and is rich in medium and heavy rare earth elements. At present, the solution mining method (in-situ leaching) is mainly used, and the main reagents are ammonia (ammonium chloride, ammonium sulfate, etc.). The solution is generally prepared in three stages, and the injection technology of first concentrated and then diluted, first up and then down, first liquid and then water is adopted to improve the leaching rate and shorten the leaching time, The top water large circulation technology is used to prevent landslides, prevent the mother liquor from seeping out from the mountain ridge and dilute the mother liquor. The water sealing technology is used to prevent the leaching liquor from seeping out and improve the recovery rate of the leaching liquor. The mother liquor is purified, cleaned, precipitated, filtered and dried to obtain rare earth oxides
rare earth is the abbreviation of rare earth group elements, and 17 elements are often classified into the rare earth family. China is the country with the richest rare earth resources, and its reserves and output rank first in the world. Ionic rare earth is a new type of rare earth mineral resources in China. It is characterized by complete distribution, high content of high value-added elements, low specific radioactivity, many high-tech application elements and high comprehensive utilization value; Five & quot; In a sense, it has changed, promoted and accelerated the process of world high technology. The second generation extraction technology of ionic rare earth -- & quot; In situ leaching process;, Won the & quot; The Eighth Five Year Plan & quot; The national science and technology major achievement award is the national & quot; The Eighth Five Year Plan & quot; Science and technology attacking the pass & quot; Top ten world leading technological achievements & quot; He won the National Invention Award in 1997. This research achievement was reported by CCTV in the news program in 1996. It is a unique ionic rare earth in China. Since the discovery, naming and the invention of the second generation extraction process in 1970, after 25 years of confidentiality management, it has been officially disclosed at home and abroad for the first time; Show up & quot
the technology of ionic rare earth is the independent intellectual property of China. Ganzhou Research Institute of nonferrous metallurgy is the main unit of scientific and technological achievements in the discovery and naming of ion adsorption rare earth ore and the second generation of rare earth extraction technology in China. Comrade Ding Jiayu, who was then deputy director in charge of scientific research and later director of Ganzhou Institute of nonferrous metallurgy, as the main participant and leader in the invention and application of the second generation extraction process of ionic rare earth ore, has an unforgettable memory of the historical development process of this event. At the request of the reporter, Comrade Ding Jiayu reviewed and summarized this historical event comprehensively and systematically
up to 1970, in the past 175 years of development and utilization history of rare earth mineral resources, it was found that there are as many as 200 kinds of minerals containing rare earth elements and their compounds in nature. However, there are only a few rare earth minerals with real instrial value, about 10 kinds. There are mainly monazite, ceric silica, bastnaesite, beryllium yttrium silicate, phosphorite, epidote, niobium yttrium ore and black rare gold ore. However, most of these minerals contain a certain amount of uranium or thorium, and the rare earth minerals exist as solid and mineral phase minerals, which are often associated with radioactive elements
in the late 20th century, with the rapid development of high technology and instrialization in the world, especially since the 1980s, the use of medium and heavy rare earth elements in the world has increased sharply, especially the demand for neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, yttrium and other rare earth elements. In view of the following reasons: first, in the traditional rare earth mineral resources, the content of most of the above rare earth elements is limited, so it is difficult to obtain rare earth concentrate; Second, because of the complexity of the proction process, the process is very long, the cost is high, and the price is expensive. If it has to be instrialized, it is very difficult, and the output is difficult to meet the requirements; Third, according to the characteristics of traditional rare earth deposit resources, if we want to obtain the above-mentioned target elements in a certain mine at the same time, it is difficult to achieve the effect. It is necessary to mine multiple rare earth mines with different distribution to meet the above-mentioned needs at the same time. Obviously, only relying on the development of traditional rare earth resources is bound to be difficult to meet the rapid development trend of modern high technology and the demand for rare earth elements. Therefore, this situation will inevitably lead to the pursuit and exploration of new rare earth resources, hoping to obtain the reliable guarantee of rare earth resources needed by high technology< In fact, as early as the 1960s, China recognized the important role of medium and heavy rare earth resources, especially heavy rare earth resources, in national defense construction and national economic construction from a strategic perspective. In the mid-1960s, the former Ministry of metallurgical instry organized the South heavy rare earth resources research conference according to the national military plan. Aiming at the surrounding rock of a mine in South China, through scientific and technological research, the code named & quot; Proct 6 & quot; Heavy rare earth procts. Through the cooperation of the units participating in the war, the technological process has been got through, and the & quot; Proct 6 & quot; Samples. But the cost is very high, and it is difficult to implement instrialization. But then came & quot; Cultural Revolution;, The battle had to be suspended
after several twists and turns, the use of traditional experimental research methods have failed, but still not afraid of difficulties, indomitable, adhere to explore, and strive to tackle key problems. After hard work, we abandoned the traditional method of studying rare earth deposits in granite weathering crust, creatively adopted a variety of comprehensive technical means, such as rare earth soluble analysis and pulp resin adsorption, and finally graally opened up the problem; No mineralization & quot; Of & quot; Ion adsorption rare earth ore & quot; It's the secret of life.
rare earth is the abbreviation of rare earth group elements, and 17 elements are often classified into the rare earth family. China is the country with the richest rare earth resources, and its reserves and output rank first in the world. Ionic rare earth is a new type of rare earth mineral resources in China. It is characterized by complete distribution, high content of high value-added elements, low specific radioactivity, many high-tech application elements and high comprehensive utilization value; Five & quot; In a sense, it has changed, promoted and accelerated the process of world high technology. The second generation extraction technology of ionic rare earth -- & quot; In situ leaching process;, Won the & quot; The Eighth Five Year Plan & quot; The national science and technology major achievement award is the national & quot; The Eighth Five Year Plan & quot; Science and technology attacking the pass & quot; Top ten world leading technological achievements & quot; He won the National Invention Award in 1997. This research achievement was reported by CCTV in the news program in 1996. It is a unique ionic rare earth in China. Since the discovery, naming and the invention of the second generation extraction process in 1970, after 25 years of confidentiality management, it has been officially disclosed at home and abroad for the first time; Show up & quot
the technology of ionic rare earth is the independent intellectual property of China. Ganzhou Research Institute of nonferrous metallurgy is the main unit of scientific and technological achievements in the discovery and naming of ion adsorption rare earth ore and the second generation of rare earth extraction technology in China. Comrade Ding Jiayu, who was then deputy director in charge of scientific research and later director of Ganzhou Institute of nonferrous metallurgy, as the main participant and leader in the invention and application of the second generation extraction process of ionic rare earth ore, has an unforgettable memory of the historical development process of this event. At the request of the reporter, Comrade Ding Jiayu reviewed and summarized this historical event comprehensively and systematically
up to 1970, in the past 175 years of development and utilization history of rare earth mineral resources, it was found that there are as many as 200 kinds of minerals containing rare earth elements and their compounds in nature. However, there are only a few rare earth minerals with real instrial value, about 10 kinds. There are mainly monazite, ceric silica, bastnaesite, beryllium yttrium silicate, phosphorite, epidote, niobium yttrium ore and black rare gold ore. However, most of these minerals contain a certain amount of uranium or thorium, and the rare earth minerals exist as solid and mineral phase minerals, which are often associated with radioactive elements
in the late 20th century, with the rapid development of high technology and instrialization in the world, especially since the 1980s, the use of medium and heavy rare earth elements in the world has increased sharply, especially the demand for neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, yttrium and other rare earth elements. In view of the following reasons: first, in the traditional rare earth mineral resources, the content of most of the above rare earth elements is limited, so it is difficult to obtain rare earth concentrate; Second, because of the complexity of the proction process, the process is very long, the cost is high, and the price is expensive. If it has to be instrialized, it is very difficult, and the output is difficult to meet the requirements; Third, according to the characteristics of traditional rare earth deposit resources, if we want to obtain the above-mentioned target elements in a certain mine at the same time, it is difficult to achieve the effect. It is necessary to mine multiple rare earth mines with different distribution to meet the above-mentioned needs at the same time. Obviously, only relying on the development of traditional rare earth resources is bound to be difficult to meet the rapid development trend of modern high technology and the demand for rare earth elements. Therefore, this situation will inevitably lead to the pursuit and exploration of new rare earth resources, hoping to obtain the reliable guarantee of rare earth resources needed by high technology< In fact, as early as the 1960s, China recognized the important role of medium and heavy rare earth resources, especially heavy rare earth resources, in national defense construction and national economic construction from a strategic perspective. In the mid-1960s, the former Ministry of metallurgical instry organized the South heavy rare earth resources research conference according to the national military plan. Aiming at the surrounding rock of a mine in South China, through scientific and technological research, the code named & quot; Proct 6 & quot; Heavy rare earth procts. Through the cooperation of the units participating in the war, the technological process has been got through, and the & quot; Proct 6 & quot; Samples. But the cost is very high, and it is difficult to implement instrialization. But then came & quot; Cultural Revolution;, The battle had to be suspended
after several twists and turns, the use of traditional experimental research methods have failed, but still not afraid of difficulties, indomitable, adhere to explore, and strive to tackle key problems. After hard work, we abandoned the traditional method of studying rare earth deposits in granite weathering crust, creatively adopted a variety of comprehensive technical means, such as rare earth soluble analysis and pulp resin adsorption, and finally graally opened up the problem; No mineralization & quot; Of & quot; Ion adsorption rare earth ore & quot; It's the secret of life.
3. At present, there are two types of rare earth minerals, one is the combined state, the other is the ionic state
the former needs to be treated after mining, and the latter is in-situ leaching
the former is Inner Mongolia, Sichuan and other places, while the latter is mainly endemic to Gannan area of Jiangxi Province.
the former needs to be treated after mining, and the latter is in-situ leaching
the former is Inner Mongolia, Sichuan and other places, while the latter is mainly endemic to Gannan area of Jiangxi Province.
4. The Ministry of instry and information technology (MIIT) and the national development and Reform Commission (NDRC) have recently selected several key state-owned enterprises to integrate China's strategic rare earth proction and export quotas to prevent over exploitation, according to people familiar with the situation< The report has been submitted to the State Council for examination and approval recently. Once approved, the Ministry of land and resources will issue licenses to these enterprises for ore blending, "said a person who declined to be named. They did not disclose the list of specific enterprises
private enterprises can only participate in the exploitation and utilization of rare earth resources by participating in these state-owned enterprises, the person said. As the southern region with more medium and heavy rare earth elements will become the focus of this layout
China is the world's largest supplier of rare earth, accounting for 97% of the world's rare earth supply. As an irreplaceable resource, rare earth is widely used in many high-tech instries, including wind turbines, hybrid vehicles, missiles and mobile phones< However, from 1979 to 2009, the average price of rare earths fluctuated for several times, but only increased by 21.4%. The price in 2009 was $8.50 per kilogram. In contrast, the demand for rare earth has increased from 40000 tons to 120000 tons in the past decade
"e to over exploitation and lack of proper management to protect these rare resources, the price of rare earth has been seriously underestimated. Because of this, it is crucial for the state to integrate these resources, which will benefit the whole instry, "said Zhang Anwen, Deputy Secretary General of China rare earth Association< The Ministry of land and resources issued a notice in March this year, requiring that the total amount of rare earth mining should be controlled at 89200 tons this year, an increase of 8.36% over last year. At the same time, it stressed that the proction of rare earth will continue to be controlled in the future to ensure that it will not be over exploited<
the Ministry of land and resources issued a notice in April this year, suspending the acceptance of rare earth exploration and mining registration applications before June 30, 2011, except for mining enterprises that meet a number of conditions, in order to protect rare earth resources<
according to unnamed analysts and instry data, Baotou Steel Rare Earth will mainly control the light rare earth resources in the northern region, especially in Inner Mongolia; Minmetals and Chinalco are expected to take control of Jiangxi's medium and heavy rare earth resources; Jiangxi copper and Zhongse are likely to take charge of the exploitation of heavy rare earth resources in Sichuan and Guangdong provinces< According to the data from the U.S. Geological Survey, China's basic rare earth reserves in 2008 were 89 million tons of REO, accounting for 59.3% of the world's total reserves
some developed countries, such as the United States, have 15% of the world's rare earth resources, but they are almost completely dependent on China's exports, and rarely develop their own resources. Analysts say the surge in foreign demand has partly led to over exploitation of China's rare earth resources.
private enterprises can only participate in the exploitation and utilization of rare earth resources by participating in these state-owned enterprises, the person said. As the southern region with more medium and heavy rare earth elements will become the focus of this layout
China is the world's largest supplier of rare earth, accounting for 97% of the world's rare earth supply. As an irreplaceable resource, rare earth is widely used in many high-tech instries, including wind turbines, hybrid vehicles, missiles and mobile phones< However, from 1979 to 2009, the average price of rare earths fluctuated for several times, but only increased by 21.4%. The price in 2009 was $8.50 per kilogram. In contrast, the demand for rare earth has increased from 40000 tons to 120000 tons in the past decade
"e to over exploitation and lack of proper management to protect these rare resources, the price of rare earth has been seriously underestimated. Because of this, it is crucial for the state to integrate these resources, which will benefit the whole instry, "said Zhang Anwen, Deputy Secretary General of China rare earth Association< The Ministry of land and resources issued a notice in March this year, requiring that the total amount of rare earth mining should be controlled at 89200 tons this year, an increase of 8.36% over last year. At the same time, it stressed that the proction of rare earth will continue to be controlled in the future to ensure that it will not be over exploited<
the Ministry of land and resources issued a notice in April this year, suspending the acceptance of rare earth exploration and mining registration applications before June 30, 2011, except for mining enterprises that meet a number of conditions, in order to protect rare earth resources<
according to unnamed analysts and instry data, Baotou Steel Rare Earth will mainly control the light rare earth resources in the northern region, especially in Inner Mongolia; Minmetals and Chinalco are expected to take control of Jiangxi's medium and heavy rare earth resources; Jiangxi copper and Zhongse are likely to take charge of the exploitation of heavy rare earth resources in Sichuan and Guangdong provinces< According to the data from the U.S. Geological Survey, China's basic rare earth reserves in 2008 were 89 million tons of REO, accounting for 59.3% of the world's total reserves
some developed countries, such as the United States, have 15% of the world's rare earth resources, but they are almost completely dependent on China's exports, and rarely develop their own resources. Analysts say the surge in foreign demand has partly led to over exploitation of China's rare earth resources.
5. After mining, oxalic acid is used for chemical reaction, and then water is used for washing. It's similar to mining in peacetime. I've seen people mining before, but it's the most basic. It doesn't separate all kinds of rare metals. If you are more professional, you can get valuable rare metals from the washed water.
6. Rare earth is the general name of 15 elements of lanthanide (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium) and 17 elements of scandium 21 and yttrium 39 in the periodic table of chemical elements. About 250 kinds of rare earth minerals have been found, but there are only 50-60 kinds of rare earth minerals with instrial value. At present, there are only about 10 kinds of rare earth minerals with mining value. At present, four kinds of minerals are mainly used for instrial extraction of rare earth elements - bastnaesite, monazite, phosphorite yttrium and weathering crust leaching deposit. The first three kinds of minerals account for more than 95% of the proction of rare earth in the West. The content of LREE is higher in monazite and bastnaesite. The contents of hree and yttrium are higher, but the ore source is less than monazite
although rare earth minerals are distributed in North China, Northeast China, East China, Central South China, Southwest China and Northwest China, they are mainly concentrated in the Bayan Obo iron niobium and rare earth mining area in North China, which accounts for more than 90% of the total rare earth reserves in China and is the main proction base of light rare earth in China
rare earth is widely used. As long as the right amount of rare earth is added to some traditional procts, many magical effects will be proced. At present, rare earth has been widely used in metallurgy, petroleum, chemical instry, textile, medicine, agriculture and other instries. The re steel can improve the wear resistance, corrosion resistance and toughness of the steel; Rare earth aluminum wire rod can rece the fineness of aluminum wire and improve the strength and conctivity at the same time; Spraying Rare Earth pesticides on fruit trees can not only eliminate diseases and insect pests, but also increase the rate of fruit bearing; Rare earth compound fertilizer can not only improve the soil structure, but also increase the yield of agricultural procts; Rare earth elements can also inhibit the proliferation of cancer cells
according to the physical and chemical properties of rare earth minerals, associated gangues and other minerals, the commonly used methods for rare earth mineral processing are: gravity beneficiation (mainly equipped with jig, shaker, etc.), magnetic separation (mainly equipped with magnetic separator), flotation (mainly equipped with flotation machine), etc.
although rare earth minerals are distributed in North China, Northeast China, East China, Central South China, Southwest China and Northwest China, they are mainly concentrated in the Bayan Obo iron niobium and rare earth mining area in North China, which accounts for more than 90% of the total rare earth reserves in China and is the main proction base of light rare earth in China
rare earth is widely used. As long as the right amount of rare earth is added to some traditional procts, many magical effects will be proced. At present, rare earth has been widely used in metallurgy, petroleum, chemical instry, textile, medicine, agriculture and other instries. The re steel can improve the wear resistance, corrosion resistance and toughness of the steel; Rare earth aluminum wire rod can rece the fineness of aluminum wire and improve the strength and conctivity at the same time; Spraying Rare Earth pesticides on fruit trees can not only eliminate diseases and insect pests, but also increase the rate of fruit bearing; Rare earth compound fertilizer can not only improve the soil structure, but also increase the yield of agricultural procts; Rare earth elements can also inhibit the proliferation of cancer cells
according to the physical and chemical properties of rare earth minerals, associated gangues and other minerals, the commonly used methods for rare earth mineral processing are: gravity beneficiation (mainly equipped with jig, shaker, etc.), magnetic separation (mainly equipped with magnetic separator), flotation (mainly equipped with flotation machine), etc.
7.
1) Rare earth metals, or rare earth elements, are 17 chemical elements of scandium, yttrium and lanthanide in the third group of the periodic table. Scandium and yttrium are considered as rare earth elements because they often coexist with lanthanide elements and have similar chemical properties
2) there are about 92.61 million tons of rare earth minerals in the world, and about 36% of them are stored in China. There are huge reserves of mixed minerals in Bayan Obo, Jiangxi, Guangdong, Sichuan and other places in Baotou City, Inner Mongolia. At present, China is the world's largest procer and exporter of rare earth minerals, accounting for about 90% of the world's total exports
3) according to your question, in fact, the several places you mentioned are the main distribution areas of rare earth minerals in China
8. Unknown_Error
9. Of course, and rare metals. It is used in many fields, such as instry, agriculture, medicine, military, aviation, national defense, aerospace, electronics and so on.
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