Sírová kyselina pro metalurgické a ropa průmysl

For the metallurgical industry and metal processing In the metallurgical industry sector, in particular the production process of non-ferrous metals requires the use of sulfuric acid. For example, when electrolysis refining copper, zinc, cadmium, nickel, the electrolyte needs to use sulfuric acid, and the refining of some precious metals also needs sulfuric acid to dissolve other metals that are included. Before cold rolling, cold drawing and stamping in the steel industry, sulfuric acid must be used to remove iron oxide from the surface of the steel. In the rolling sheet, cold-drawn seamless steel pipe and other steel with high quality requirements, it must be washed with sulfuric acid once every rolling. In addition, slotted steel pipes, thin iron sheets, iron wires, etc. must be pickled with sulfuric acid before being galvanized. In some metal machining processes, such as nickel plating, chromium plating and other metal parts, sulfuric acid is also required to clean the rust on the surface. In the ferrous metallurgy enterprise sector, the steel that needs pickling generally accounts for about 5 percent to 6 percent of the total steel production, and the pickling of each ton of steel consumes about 98 percent of the sulfuric acid 30-50kg.
In the výroba ropa produkty takové jako benzín a mazání olej, koncentrovaný sírový kyselina je požadovaný k být rafinovaný k odstranit síra-obsah sloučeniny a nenasycené uhlovodíky. Každý tuna z ropa rafinace vyžaduje asi 24kg sírová kyselina, a každý tuna z nafta rafinace vyžaduje asi 31kg zcizrnité kyseliny. Příprava z aktivní jíl použité v ropa průmysl také spotřebovávající A šarže Z sírová kyselina.
In concentrated nitric acid, concentrated sulfuric acid is used as dehydrating agent; In chlor-alkali industry, concentrated sulfuric acid is used to dry chlorine gas and chlorinated hydrogen gas. In the inorganic salt industry, sulfuric acid is used in the preparation of crurite, borax, trisodium phosphate, disodium hydrogen phosphate, lead sulfate, zinc sulfate, copper sulfate, ferrous sulfate, and other sulfates. Many inorganic acids such as phosphoric acid, boric acid, chromic acid (sometimes also CrO3), hydrofluoric acid, chlorosulfonic acid; The preparation of organic acids such as oxalic acid and acetic acid often requires sulfuric acid as a raw material. In addition, the coking chemical industry (sulfuric acid is used to produce ammonium sulfate by acting with ammonia in coke oven gas), electroplating industry, leather industry, pigment industry, rubber industry, paper industry, paint industry (preparation of organic solvents), industrial explosives and lead battery manufacturing, etc., all consume a considerable amount of sulfuric acid.
Can be used as hard water avifer, ion exchange regenerator, pH regulator, oxidant and detergent. it can also be used in the manufacture of fertilizers, pesticides, barviv, pigments, plastics, chemical fibers, explosives and various sulfates. It is widely used in ropa rafining, nonferrous metal smelting, steel moří, leather processing, coking industry, light textil industry, national defense and military military průmysl. Silná kyselina čištění leptan. To je hlavně používá se pro křemík destička čištění v integrovaný obvod výroba proces.