METHOD OF PRODUCTION OF KOKSBRIK COKE BRIQUETTES Russian patent published in 1997 - IPC

FIELD: energy carriers, reducer for electrothermal production of phosphorous, pig iron, steel, ferroalloys, refractory products, sugar, and also in the capacity of fuel in household and industrial furnaces. SUBSTANCE: the offered method includes mixing of coke fines with 3-10 mas.% of binding agent based on sulfonic acid derivative, briquetting of mixture and subsequent heat treatment at 200-700 C for 10-120 min. For mixing, use is made of coke fines with the following size and content: 6-2.5 mm 15-25 mas. %; 2.5-1 mm 15-35 mas. %; less than 1 mm up to 100 mas.%. Briquetting is carried out with pressure of 5-90 MPa. Binding agent is used in form of lignosulfonate or sodium salt of methylenenaphthalenesulfonic acid which may be modified with 10-30 mas.% of still bottoms of tallow oil rectification. EFFECT: higher efficiency. 2 cl