Preparation of precursor materials convertible into bi- and poly

Details Preparation of precursor materials convertible into bi- and poly Preparation of precursor materials convertible into bi- and poly

1986-06-02

1988-05-31

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

423599, 423600, C04B 3504, C01F 3516

Patent

active

047481390

ABSTRACT:
A method of producing layered structures of metal hydroxides (one or more metals) free of chloride or chlorine is disclosed. A specific ratio layered structure hydroxide is obtained from mixing first and second metals (respectively in the form of hydroxide, oxyhydroxide carbonate or nitrate as to the first metal and a hydroxide or alkali metal oxide as to the second) in proportions yielding a precipitated layered structure. The precipitators metal hydroxides with any excess of metal over 1:1 forming a segregated phase. Processing involves mixing, maintaining as a suspension up to about 48 hours at temperatures above about 40.degree. C. followed by cooling to recover the precipitate.

REFERENCES:
patent: 3300277 (1967-01-01), Schenck
patent: 4400431 (1983-08-01), Henslee et al.
patent: 4459156 (1984-07-01), Henslee et al.
patent: 4492677 (1985-01-01), Yoo et al.
patent: 4492678 (1985-01-01), Yoo et al.

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