NOVEL INORGANIC, HALOGEN-FREE FLAMEPROOFING AGENT BASED ON CHEMICALLY MODIFIED RECARBONISED RED MUD Russian patent published in 2018 - IPC C08K3/00 C09K21/02 C01F7/06 

FIELD: chemistry.

SUBSTANCE: invention relates to flameproofing agents - flame inhibitors designed to reduce, slow down or prevent the spread of fire. Described is an inorganic halogen-free flameproofing agent produced from modified, red mud having the following composition: from 10 to 50% by weight of iron compounds, from 12 to 35% by weight of aluminium compounds, from 5 to 17% by weight of silicon compounds, from 2 to 10% by weight of titanium dioxide, from 0.5 to 6% by weight of calcium compounds, and, in corresponding cases, unavoidable impurities, characterised in that the weight ratio of Fe (II) carbonate to iron oxides is at least 1. Also disclosed are methods of producing an inorganic, halogen-free flameproofing agent, fireproof product containing a combustible material and a flameproofing agent, a method for producing a flameproofing product, a flameproofing agent produced from modified, recarbonised red mud and use of the flameproofing agent.

EFFECT: technical result: a halogen-free flameproofing agent is obtained, which provides the effect of slowing down combustion, which is manifested in the high-temperature and low-temperature range.

51 cl, 12 dwg, 6 tbl