Method for pretreating coal fly ash

Details Method for pretreating coal fly ash Method for pretreating coal fly ash

1980-12-15

1982-06-22

Cannon, James C.

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

427220, 428404, 428405, 523212, 523213, 523216, B05D 700, B32B 300, C08K 902, C08K 904, C08K 906

Patent

active

043362842

ABSTRACT:
A method of pretreating coal fly ash is presented having an essentially monomolecular partial coating of under 100 angstroms thickness for obtaining improved compatibility with organic polymers and resins. The partial coverage is selected from the long-chain organic group including organotitanates, organofunctional silanes and stearic acids, with the former being preferable. The amount of chemical pretreatment compound required is preferably from 0.01 to 0.09 parts, per 100 parts of coal fly ash.

REFERENCES:
patent: 3846366 (1974-11-01), Wallace
patent: 3896060 (1975-07-01), Plunguian et al.
patent: 3917547 (1975-11-01), Massey
patent: 4243575 (1981-01-01), Myers et al.
Chem. Abstracts, 79 67907; 80 28093; 80 122051; 82 99036; 83 60184; 83 180463; 84 45147; 84 123167; 85 79752; 85 95962; 85 193608; 86 17668; 87 152952; 90 55655; 90 105753; 93 25261; 94 70312; 94 122584; 94 140703; 95 66896.

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