Polysulfide method

The thermodynamics of polysulfide leaching of gold was reported by Soviet scholar Kakowski in 1962. The treatment target is As-Sb-Au sulfide concentrate (containing As up to 4.5%), and the recovery rate of gold can reach 80%. ~99%

Calculation of iron content in self-fluxing sinter

The iron brought in by the ore in the mixture all enters the sinter.
Let Fe and Fe' denote the iron content of the self-fluxing sintered ore and the mixed ore;
SiO 2 ', CaO' and L respectively represent SiO

Dry type permanent magnetic cylinder magnetic separator

This magnetic separator is mainly produced by the mining industry. In recent years, the North Mine Institute has also started production. Jiang Magnetic also developed and produced an inner cylinder permanent magnet magnetic separator in 1991. <

"Lighting King" Foshan Lighting Frequency Exposure Quality Problem

Dengwang Foshan Lighting recently announced the summary of the 2016 report, saying that the net profit attributable to shareholders of listed companies reached 1.072 billion yuan, a year-on-year increase of 19 times. However, in fact, the net profit after deduction was 351 million yuan, a year-

How to solve the informatization construction of smart cities? Plan here!

Smart cities refer to the use of Internet of Things, Internet, cloud computing, IT, intelligent analysis and other technical means in the development of cities, in the areas of urban infrastructure, resources and environment, social and people’s livelihoods, economic industries, and mu

In February, the production of pure electric buses was 0.


Recently, the GGII Motor Vehicle Research Institute (GGII) statistics according to the statistics of motor vehicle manufacturing certificate, the total output of new energy buses in China in February was 303, all of which were plug-in hybrid vehicles, while the output of pure electri

上海三思智慧路灯集“十八般”武艺于一身 让智慧城市更“聪明”

随着智慧城市探索不断加深,各项智慧措施逐渐走进人们的视野,知名LED企业上海三思推出的智慧路灯就æ