Research progress of ultra-wide-tuning and stochastic Raman …

Recently, the group headed by Feng Yan, a researcher at the Space Laser Information Technology Research Center of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, made new progresses in the research of stochastic Raman fiber lasers. The picture shows the structure ...more...

Electric control valve closed lax treatment

Electric control valve is to regulate the flow of special media valve, the valve based on the measured parameters (such as temperature, pressure, flow, etc.), in order to constant measured parameters for the purpose of automatic control valve opening. Precisely because of the electric regulating v ...more...

Cu

Pyrite (FeS 2), yellow copper ore (FeCuS 2) are widely distributed sulfide minerals, they are mostly accompanied by symbiotic, floating and can be similar, so they flotation separation has always been an important concern of researchers beneficiation Question. At present, the process of realizing t ...more...

What are the methods for treating arsenic-containing wastewa…

(1) Lime method; (2) Lime - iron salt method; (3) vulcanization; (4) Method of soft manganese ore; (5) comprehensive recovery method; (6) phosphate method; (7) activated carbon, activated Aluminum adsorption method; (8) reverse osmosis method; (9) ion exchange method. Automatic Shape Moulding Machi ...more...

Countermeasures for the Sustainable Development of China'…

1. Establish a national non-ferrous metal supporting long-term planning planning market access mechanism; 2. Incorporate comprehensive industry governance into the rule of law as soon as possible; 3. Use tax leverage to adjust industry development; 4. Continue to increase the intensity of cracki ...more...

Copper nickel bismuth (high ice nickel) flotation

The rich copper- nickel ore or copper-nickel mixed concentrate which is difficult to separate by flotation is firstly smelted in an electric furnace to obtain a low nickel niobium containing about 14% nickel, and then blown by a converter to obtain a Ni content of 45% to 46%. Containing 20% †...more...