Silicate dissolving

Details Silicate dissolving Silicate dissolving

1974-12-12

1976-06-01

Stern, Edward

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423659, 232726A, B01D 1102, C01B 3332

Patent

active

039610225

ABSTRACT:
Solutions of soluble alkali metal silicates of exceptional clarity are prepared by dissolving anhydrous alkali metal silicate glass at atmospheric pressure by a novel process comprising the constant classification of alkali metal silicate glass particles according to size and the constant removal of the polymer-like silicate that forms as a semi-solid on the wetted glass surface. The constant classification of the silicate glass particles and removal of this polymeric silicate to yield nascent glass surfaces can be achieved by charging silicate glass particles to aqueous media in a vibrating or vibro energy mill and subjecting said particles to impacts of varying frequency and amplitude or by subjecting the solution and glass particles, during dissolution, to agitation of different intensity and duration in a vertically stacked series of dissolving chambers.

REFERENCES:
patent: 1138595 (1915-05-01), Stanton et al.
patent: 1341288 (1920-05-01), Taylor
patent: 1763845 (1930-06-01), Edgerton
patent: 2055836 (1936-09-01), Cowles
patent: 2086230 (1937-07-01), Lemmerman
patent: 2251515 (1941-08-01), Carll, Jr.
patent: 2783129 (1957-02-01), Baral
patent: 3090679 (1963-05-01), Tauch

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