Chemical processes

Details Chemical processes Chemical processes

1979-01-22

1981-06-09

Bernstein, Hiram

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

23313AS, B01D 902

Patent

active

042724953

ABSTRACT:
String-like agglomerates of chrysotile asbestos fibers are recovered from crude asbestos by first forming a stable gel structure of asbestos and dispersing agent, diluting the gel structure dispersion with water in a first dilution step to form a readily pourable dispersion without dilution of the concentration of dispersing agent to a level insufficient to maintain the asbestos fibrils in a dispersed state, and then, in a second dilution step, rapidly diluting the dispersion with water to reduce the concentration of dispersing agent to a level insufficient to maintain the dispersion, thereby forming agglomerates of the fibrils. Preferably, the dispersion is subjected to an orienting flow during or immediately after the second dilution step to form string-like agglomerates.

REFERENCES:
patent: 2626213 (1953-01-01), Novak
patent: 2685825 (1954-08-01), Novak
patent: 3586639 (1971-06-01), House
patent: 3679542 (1972-07-01), Jacquelin
patent: 3965284 (1976-06-01), Xanthos et al.

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