METHOD OF PRODUCING DEPRESSOR ADDITIVE FOR DIESEL FUEL AND DEPRESSOR ADDITIVE FOR DIESEL FUEL Russian patent published in 2017 - IPC C08F222/06 C10L1/10 C10L10/16 

FIELD: chemistry.

SUBSTANCE: method of producing a depressor additive for diesel fuel is described. A radical copolymerization reaction of maleic anhydride and a wide fraction of 1-olefins C₄-C₃₄ at a ratio of the initial reagents from 1:0.92 to 1:3.7 is carried out. The reaction is initiated with dibenzoyl peroxide at a temperature of 75-90°C for 8-23 hours. The initiator residues are then filtered off, and after evaporation of the solvent, the desired product is isolated.

EFFECT: simplification of the process due to the one-stage synthesis of the depressor additive, the use of inexpensive and non-toxic starting reagents and solvents, increasing the yield of the target product and reducing the pour point of diesel fuel.

2 cl, 1 tbl, 6 ex