FIELD: chemistry.
SUBSTANCE: process liquids and well products are purified from hydrogen sulphide and organic sulphur compounds by bringing them into contact with a sulphur-removing reagent - aqueous solution of products of reaction of formaldehyde and nitrogen-containing organic bases. The method is distinguished by that, the sulphur-removing reagent also contains an aprotonic dipolar solvent, with the following ratio of reagents, wt. pts: aqueous solution of products of reaction of formaldehyde and nitrogen-containing bases - 100; aprotonic dipolar solvent - 10-40.
EFFECT: simplification of the purification method with increase in its efficiency at the same time and reduced consumption of sulphur-removing reagent.
