The use of Vitriol

Sulfuric acid(Vitriol) used in the metallurgical industry and metal processing in the metallurgical industry sector, especially non-ferrous metal production processes using sulfuric acid. For example, by electrolysis of refined copper, zinc, cadmium, nickel, electrolyte will need to use sulfuric acid, some of the precious metals refining, and sulfuric acid to dissolve go to a mixture of other metals. Must be removed with sulfuric acid prior to cold rolling, cold drawing, and stamping processing in the steel industry, the steel surface of iron oxide. Rolled sheet, cold drawn seamless steel tubes and other quality requirements of high steel, must be rolling once washed once with sulfuric acid. In addition, pipe joints, thin metal, wire, etc. during the galvanizing before, go through the sulfuric acid pickling procedures. Some metal machining process, such as nickel, chrome and other metal parts, is also used sulfuric acid to wash the surface rust. In the ferrous metallurgy enterprises sector, the need to pickling of steel is generally about 5% to 6% of the total output of steel per tonne of steel pickling, about consumption of 98% sulfuric acid 30kg ~ 50kg.
Sulfuric acid(Vitriol) used in the production process of the petroleum industry gasoline, lubricants and other petroleum products, concentrated sulfuric acid refining to remove the sulfur compounds and unsaturated hydrocarbons. Per ton of crude oil refining requires sulfuric acid about 24kg, refined needs of sulfuric acid per ton of diesel about 31kg. Preparation of activated clay used in the petroleum industry, but also consume a lot of sulfuric acid.
In concentrated nitric acid, concentrated sulfuric acid as dehydrating agent; chlor-alkali industry, concentrated sulfuric acid to dry chlorine, hydrogen chloride gas, etc.; inorganic salt industry, such as cryolite (Na3AlF6), borax (Na2B4O7 · 10H2O), trisodium (Na3PO4), disodium hydrogen phosphate (of Na2HPO4), lead sulfate (PbSO4), zinc sulfate, copper sulfate, ferrous sulfate and other sulfate preparation should sulfuric acid. Many inorganic acids such as phosphoric acid, boric acid, chromic acid (H2CrO4, sometimes also referred to as of CrO3 Additive), hydrofluoric acid, chlorosulfonic acid (ClSO3H); organic acids such as oxalic acid [(COOH) 2], acetic acid (CH3COOH) and other preparation, but also often need to sulfuric acid as raw materials. In addition, the coke chemical industry (sulfuric acid and ammonia works with coke oven gas-product ammonium sulfate), electroplating industry, the tanning industry, paint industry, rubber industry, paper industry, paint industry (Preparation of organic solvent), industrial explosives and lead-acid battery manufacturing, etc., consume a considerable amount of sulfuric acid.

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