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2 117 018

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IPC

(21) (22)

Application

97112574/25, 1997-07-22

(22)

Actual filing date

1997-07-22

(45)

Published

1998-08-10

(72)

Inventor

Lebiga V.A.Grigor'Eva L.I.Grigor'Ev Eh.M.Shostenko N.A.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Redkometallicheskoj PromyshlennostiNauchno-Issledovatel'Skij Institut Khimicheskikh I Stroitel'Nykh Mashin

METHOD OF PRODUCTION OF CERAMIC ZIRCONIUM PIGMENTS Russian patent published in 1998 - IPC

Abstract RU 2117018 C1

FIELD: technology of production of thermostable ceramic pigments; production of building ceramics, sanitary ceramics and decorative ceramics. SUBSTANCE: aqueous pulp of silicium dioxide, basic zirconium sulfate and chloroform additive are mixed. In zirconium sulfate molar ratio of sulfate group and zirconium is 0.6-0.8. Pulp is treated by ammonium (bi)carbonate to pH 8-9. Thus obtained residue is separated, washed, mixed with mineralizing agent, dried and treated by heat at 900-1300 C. EFFECT: increased yield of the product and simplified the process. 1 tbl

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RU 2 117 018 C1

Authors

Lebiga V.A.

Grigor'Eva L.I.

Grigor'Ev Eh.M.

Shostenko N.A.

Dates

1998-08-10—Published

1997-07-22—Filed