METHOD OF SULFURIC ACID WASTES UTILISATION

摘要

FIELD: chemistry.SUBSTANCE: invention relates to field of chemistry. Wastes of sulfuric acid from synthesis of 2,2'-dichlordiethylformal of polysulfide polymer production, containing ethylenechlorohydrine and paraformaldehyde admixtures, are processed with magnesium hydroxide until medium with acidity pH=6.5-7.0 is obtained, from ethylenechlorohydrine and paraformaldehyde admixtures are separated by decantation with possibility of their recycling is synthesis of 2,2'-dichlorodiethylformal. The remaining water solution of formed magnesium sulphate after its dilution with water to concentration 200-270 g/dmis supplied to stage of polycondensation of polysulfide polymer production for its application as dispenser.EFFECT: invention makes it possible to sparingly use raw material resources and prevents pollution of environment with highly toxic wastes.1 ex