Double or mixed silicates of alkali metal and other glass modifi

Details Double or mixed silicates of alkali metal and other glass modifi Double or mixed silicates of alkali metal and other glass modifi

1983-04-13

1985-03-05

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

65134, 423326, 423331, 423333, 501 29, 501 30, 501 31, 501 60, 501 65, C03C 100

Patent

active

045031584

ABSTRACT:
An at least double silicate of an alkali metal and at least one other metal is prepared by interreacting (i) an aqueous solution of an alkali metal silicate and (ii) a solution of an oxide of such at least one other metal, or salt thereof, in the presence of (iii) a water-miscible polar organic liquid, whereby said at least double silicate is suspended in the organic reaction medium in insoluble and finely divided form. The separated product is an admirable glass-former.

REFERENCES:
patent: 2386337 (1945-10-01), Moyer
patent: 4021253 (1977-05-01), Budrick et al.
patent: 4029736 (1977-06-01), Melkonian
patent: 4054459 (1977-10-01), Melkonian
patent: 4063916 (1977-12-01), DeVos et al.
patent: 4220461 (1980-09-01), Samanta
Richard, C., "New Composition Based on Head Silicate and Alkaline Silicates" Verres Refract, 33(6) Nov.-Dec. 1979, pp. 864-865.
Kirk-Othmer: Encyclopedia of Chemical Technology, vol. 11, 3rd ed. (1980) p. 826; pp. 849-851.

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