▎ 摘　　要

NOVELTY - A slag, dust and mud composite rubber functional filler comprises 5-9 wt.% graphene-phosphoric acid activator, 10-22 wt.% steel rolling sludge, 20-35 wt.% laterite nickel slag, and 40-60 wt.% blast furnace dry dedusting ash. The graphene-phosphoric acid activator is a mixture of graphene, water and phosphoric acid. The graphene and phosphoric acid are industrial pure, and the water is deionized water. The particle size of the steel rolling sludge is 3.8-84.3 mu m. The particle size of the laterite nickel slag is 4.4-101.8 mu m. The particle size of the blast furnace dry dedusting ash is 3.9-58.6 mu m. USE - Slag, dust and mud composite rubber functional filler. ADVANTAGE - The slag, dust and mud composite rubber functional filler has high performance, reduces the cost of reinforcing fillers and flame-retardants, and expands the versatility of rubber packing, and is economical and environmentally-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the slag dust mud composite rubber functional filler.