CARBON REDUCING AGENT FOR PRODUCTION OF TECHNICAL SILICON AND METHOD OF ITS PRODUCTION Russian patent published in 2021 - IPC C10L5/00 C10L5/02 C10L5/10 

FIELD: technological processes.

SUBSTANCE: invention relates to production of briquettes from carbon material used as reducing agent for production of technical silicon and other metallurgical processes. Invention relates to a briquetted carbon reducing agent based on carbon material and binder for producing technical silicon, in which the carbon material used is brown coal fines with a fractional composition of 0-10 mm, and binder used is 3-10% aqueous solution of alkali and molasses and / or pyrolysis liquid with coke residue of not less than 7 wt%, with the following ratio of components, wt%: coke breeze of brown coal of not less than 60, aqueous solution of alkali 10-20, molasses and / or pyrolysis liquid 10-20. Invention also relates to a method of producing said carbonaceous reducing agent, which involves mixing the binder with carbon material, molding the mixture and drying the formed briquette. First, brown coal coke is mixed with 3-10% aqueous solution of alkali, then molasses and / or pyrolysis liquid is added with coke residue of not less than 7 wt%, components are mixed for at least two minutes, after mixing all components briquette mass is pressed into briquettes under pressure of not less than 50 MPa with further drying at temperature of 120-170°C for 40-60 minutes and formation of briquettes of carbon reducing agent.

EFFECT: technical result is higher mechanical and thermal strength of briquette.

3 cl, 7 ex