Method for preparing particulate zinc oxide shapes of high surfa

Details Method for preparing particulate zinc oxide shapes of high surfa Method for preparing particulate zinc oxide shapes of high surfa

1975-07-09

1978-01-31

Vertiz, O. R.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423244, C01G 902

Patent

active

040716090

ABSTRACT:
Particulate zinc oxide shaped of high surface area and improved crushing strength are prepared without extraneous binder by a process including forming normal surface area zinc oxide into shapes without binder, converting at least a portion of the zinc oxide to basic zinc carbonate by exposing the shapes in the presence of moisture, to a carbon dioxide-containing atmosphere and effecting substantially complete decomposition of the basic zinc carbonate. Conditions of bulk density, moisture content and temperature are controlled.

REFERENCES:
patent: 1878390 (1932-09-01), Franklin
patent: 1944415 (1934-01-01), Engberg
patent: 2727808 (1955-12-01), Thomsen
patent: 2898191 (1959-08-01), Conn et al.
patent: 2956861 (1960-10-01), Garlet
patent: 3441370 (1969-04-01), Gutmann et al.
patent: 3674476 (1972-07-01), Tamai et al.

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