Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Mineral fibers
Patent
1974-10-10
1976-05-18
Lindsay, Jr., Robert L.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Mineral fibers
162153, 162155, 162182, 427215, B44D 116
Patent
active
039575713
ABSTRACT:
Treatment of asbestos fiber with a first coating of from about 0.1 to 5 weight percent of a phosphate, or acid thereof, and subsequent addition of a nonfoaming anionic dispersant on the coated fiber produces an asbestos fiber product that possesses improved filtration properties. This treated asbestos improves the production rate of articles from cement slurries or pastes containing asbestos.
REFERENCES:
patent: 3535150 (1970-10-01), Lipsett
patent: 3630012 (1971-12-01), Guetler
patent: 3715230 (1973-02-01), Sadler
Johns-Manville Corporation
Kelly Joseph J.
Krone Robert M.
Lindsay, Jr. Robert L.
McClain James W.
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