Alkali calcium silicates and process for preparation thereof

Details Alkali calcium silicates and process for preparation thereof Alkali calcium silicates and process for preparation thereof

1980-02-27

1981-10-13

Meros, Edward J.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

106288B, C01B 3324

Patent

active

042948100

ABSTRACT:
Disclosed is an alkali calcium silicate having two different X-ray diffraction patterns: (1) with diffraction peaks at spacings (d) of 11.8-12.2 A, 6 A and 3 A or (2) with diffraction peaks at spacings (d) of 13.0-13.4 A, 6.7 A and 3.1 A. This silicate is in the fibrous or micaceous form and is valuable as a drying agent or an ion exchange agent. This silicate is prepared by hydrothermal reaction of an aqueous suspension having a specific composition of the starting components.

REFERENCES:
patent: 2359344 (1944-10-01), Winding
patent: 2364015 (1944-11-01), Winding
patent: 3131024 (1964-04-01), Leineweber
patent: 3660021 (1972-05-01), Olmsted et al.
patent: 3806585 (1974-04-01), Takahashi et al.
Pankratz, "High-Temperature Heat Contents and Entropies of Four Crystalline Sodium-Calcium Silicates", Bureau of Mines Report of Investigations 7201, 1968, pp. 1-8.

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