Second, modern hydrometallurgy covers almost all metal refining except steel. Some metals are smelted by wet method, but most of them are decomposed, extracted and removed by wet method, and finally reduced to metals by pyrometallurgy or powder metallurgy. Typical hydrometallurgy includes tungsten, molybdenum, tantalum, niobium, cobalt, nickel, rare earth, uranium, thorium, bismuth, tin, copper, lead, zinc, titanium, manganese, vanadium, gold, silver, platinum, palladium, indium, ruthenium, osmium, iridium, germanium and gallium.
Thirdly, many metals or compounds can be produced by wet process. Hydrometallurgy plays an important role in industries such as zinc, aluminum, copper and uranium. At present, all alumina, uranium oxide, about 74% zinc and nearly 12% copper in the world are produced by hydrometallurgy.
Four, the company's main products are cobalt oxalate, cobalt carbonate and other cobalt salt series and nickel, copper and other products.
(1) ammonia, a dangerous chemical used in cobalt oxalate production, is classified according to the occupational hazards. Chemical substance (16) ammonia. 1. Possible occupational diseases: ammonia poisoning; 2. Industry example: (27) Heavy nonferrous metal smelting industry: preparation of cobalt oxalate.
(2) There will be no heavy metal poisoning. According to GBZ79-2002 Diagnostic Criteria for Occupational Acute Toxic Nephropathy A.2, the common occupational toxicants with direct nephrotoxicity are: a. Heavy metals or metalloid compounds, such as cadmium, mercury, chromium, lead, bismuth, uranium, platinum, arsenic and phosphorus.
(3) Hydrometallurgy should be relatively environmentally friendly. Pay attention to labor protection when contacting chemicals. Compared with real metallurgical plants, the occupational hazards are less. I suggest you have a try.