Virtual currency withdrawals Alipay
Bitcoin is a kind of e-cash similar to e-mail. Both parties need "bitcoin wallet" similar to e-mail and "bitcoin address" similar to e-mail address
just like sending and receiving e-mail, the remitter will pay bitcoin directly to the other party according to the recipient's address through the computer or smart phone. The following table lists some websites that download bitcoin wallets and addresses for free
a bitcoin address is a string of letters and numbers about 33 bits long, always starting with 1 or 3, such as ""
bitcoin software can generate address automatically, and it does not need to exchange information online when generating address, so it can be offline. More than 2 bitcoin addresses are available
figuratively speaking, there are about two grains of sand in the world. If there is an earth in each grain of sand, then the total number of bitcoin addresses far exceeds the number of all the sand on all these "earths"
extended materials:
bitcoin is introced as follows:
bitcoin has its own technical advantages in blockchain digital currency. Bitcoin has four main characteristics: no centralized issuer, limited total amount, no geographical restrictions and anonymity. Although bitcoin is called "currency", because it is not issued by the monetary authority, it does not have the monetary attributes of legal compensation and mandatory
is not a real currency. In nature, bitcoin should be a specific virtual commodity, which does not have the same legal status as currency, and can not and should not be used as currency in the market
you can click on a personal center on the front page of the platform - cash management - cash
can be presented to Alipay. p>
Alipay's money is equivalent to a margin account, no interest, but there are restrictions on usage. If it is bound with a bank card, it is money after withdrawal.
Alipay's money transfer to the bank account specific operation
landing Alipay -- cash in - enter the amount - enter the payment password - complete
PS: if there is no binding bank account, set up first. Step is
log on Alipay -- cash out -- set up bank account -- finish
secondly, confirm your question, you mean whether you can convert the game currency back to RMB, because if it exists in the form of RMB, it is called withdrawal, and it is impossible to withdraw if it is a virtual currency
back to your question, the reason why the app can't withdraw cash is that if the virtual currency inside can be reversed into RMB, it will impact the real monetary system, which is risky
I remember many online games in which the game currency purchased by RMB is used for gambling, For example, if the game currency (happy beans) can be reverse converted into RMB, what's the difference between this and changing chips in casinos, so in my impression, one of the keys for law enforcement agencies to determine whether it is gambling is whether the game currency can be reverse converted into RMB
hope to adopt, thank you!
The average recovery rate increased slightly, and the open pit mine was about 4% higher than the mining hill. Since 2009, the average recovery rate of the gold mine has increased slightly, but the change is not big, basically maintained between 91% and 92%. In 2012, the average recovery rate of gold mines in China was 91.56%, 0.69% higher than that in 2009. Among them, the recovery rate of open pit mining was 95.4%, 1.13 percentage points higher than that in 2009; The recovery rate of underground mine is 91.12%, which is 0.98% higher than that in 2009 (Figure 1-59)
figure 1-59 general situation of recovery rate of gold mining enterprises from 2009 to 2012
the recovery rate of beneficiation and metallurgy changed little. Since 2010, the recovery rate of gold has not changed much, basically maintained between 90% and 91%. In 2012, the average recovery rate of gold ore in China was 90.87%, with a year-on-year increase of 0.4%. The recovery rate of smelting has little change, which is between 84% and 85%. In 2012, the average recovery rate of gold smelting in China was 84.54%, with a year-on-year increase of 0.3% (Figure 1-60)
figure 1-60 2009-2012 national gold beneficiation recovery and smelting recovery
data source: Gold Association
the accumulated waste rock storage is nearly 1 billion tons, and the utilization rate is close to 10%. In 2012, China's gold mine waste rock discharge was 275 million tons, utilization was 25.625 million tons, and utilization rate was 9.3%. By the end of 2012, the total amount of gold mine waste rock in China was 991 million tons, of which Fujian Province was the largest, with 359 million tons, accounting for 36% of the total amount in China (Figure 1-61)
Fig. 1-61 cumulative storage of waste rock in each administrative region of China in 2012
Fig. 1-62 change of utilization rate of gold mine tailings and solid wastes from 2010 to 2012
data source: Gold Association
The utilization level of tailings and other solid wastes is higher, and the underground mine is obviously better than the open-pit mine. Since 2010, China's gold tailings and solid waste utilization level is higher than other minerals. In 2011, the utilization rate of gold mine tailings and solid waste was 42.24%, which was a high level in recent years. Due to the application of tailings filling technology, the utilization of tailings in underground mining is better than that in open pit mining, and the utilization rate is increasing year by year. In 2012, the utilization rate of underground mine tailings was 65.33%, which was nearly 7 percentage points higher than that in 2011, with a year-on-year growth of 11.9% (Figure 1-62)the output value of comprehensive utilization showed a rising trend, and the output value rate fluctuated greatly. In 2012, the comprehensive utilization output value of gold mine was 7.704 billion yuan, an increase of 7.5% over 2011; The comprehensive utilization output value rate was 11.94%, 0.9% lower than that in 2011. Throughout 2006-2012, the output value of comprehensive utilization of gold mine showed an upward trend, but the output value rate fluctuated greatly (Fig. 1-63)
Fig. 1-63 changes of output value and output value rate of comprehensive utilization of gold deposits from 2006 to 2012
source editor
all kinds of metallic and non-metallic ores are composed of wall rock. In the process of mining, the surrounding rock must be stripped and the waste rock must be discharged. The mined ore usually needs to be washed to improve the grade, so the tailings are discharged. Mining 1 ton of coal, generally to discharge about 200 kg of gangue. A large amount of mining solid waste will be discarded after extracting metal from various metal ores
with the development of instrial proction, the general trend is the decrease of rich ores and the increasing use of lean ores in metal and non-metal proction. For example, at the beginning of the 20th century, the copper content of copper mined was generally 3%, and that of copper mined later was about 1%. As a result, the amount of mining waste increased rapidly, and more than 30 billion tons of mining waste were discharged every year in the world. A large number of mining wastes cause serious environmental pollution [1]<
2 kinds of editing
mining waste includes the resial waste from mining and ore smelting. Among them, the solid waste proced by mining is divided into two categories, namely waste rock (including coal gangue) and tailings. Both of them become one of the problems of environmental protection because of their large amount and complex treatment
in the process of mining, the surrounding rock and intercalated rock of ore body with no instrial value are collectively referred to as mine waste rock: for pit mining, it is the rock separated from tunnel excavation and stope blasting mining and cannot be used as ore; For open-pit mine, it is the wall rock or intercalated rock on the surface of the deposit. Generally, 2-3T waste rock will be proced in pit mining (underground mine) and 6-8t waste rock will be stripped in open pit mining (1 t ore). In nonferrous metal mines, a large and medium-sized pit mining mine will proce 20X10 ^ 4 ~ 50x10 ^ 4m ^ 3 waste rock in infrastructure construction, and 6x10 ^ 4 ~ 15x10 ^ 4m ^ 3 waste rock will also be proced ring proction. The amount of waste rock stripped from the infrastructure of an open pit mine ranges from a few hundred thousand cubic meters to tens of millions of cubic meters
after the target concentrate is selected in the ore dressing process, the resial slag with little target metal is called tailings (usually called tailings). Generally, 0.5-0.95t tailings can be proced per 1t ore.