Sorptive clay composition and method of manufacture

Details Sorptive clay composition and method of manufacture Sorptive clay composition and method of manufacture

1981-02-25

1982-07-13

Poer, James

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

501147, B01J 2120

Patent

active

043393527

ABSTRACT:
A novel sorptive clay product is formed by treating attapulgite clay with sodium silicate and heating to expel moisture such that the product contains about 7-20% total volatile matter. Acid may also be added such that the pH of aqueous slurry is in the range 5 to 10. This sorptive clay product exhibits water and oil absorption and resistance to wet breakdown equivalent to higher-temperature activated attapulgite products.

REFERENCES:
patent: 2363876 (1944-11-01), LaLande
patent: 2477386 (1949-07-01), McCarter
patent: 3041238 (1962-06-01), Allegrini
patent: 3953292 (1976-04-01), Burns
W. S. W. McCarter et al., "Thermal Activation of Attapulgus Clay", Industrial & Engineering Chemistry, vol. 42, pp. 529-533, 1950.

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