World production of sulfuric acid is about 200 million tons per year. The largest consumer of sulfuric acid is the production of mineral fertilizers.
Sulfuric acid is used:
in the processing of ores, especially in the extraction of rare elements (uranium, iridium, zirconium, osmium, etc.);
in the production of mineral fertilizers;
as an electrolyte in lead batteries;
to obtain various mineral acids and salts;
in the production of chemical fibers, dyes, smoke and explosives;
in the oil, metalworking, textile, leather and other industries;
in the food industry - registered as a food additive E513 (emulsifier);
in industrial organic synthesis in the reactions:
dehydration (getting diethyl ether, esters);
hydration (ethanol from ethylene);
sulfonation (synthetic detergents and intermediate products in the production of dyes);
alkylation (production of isooctane, polyethylene glycol, caprolactam), etc.
to restore the resin in the filters in the production of distilled water.