METHOD OF PREPARING OF DACITE PURPLE FOR MANUFACTURING OF PORCELAIN AND FAIENCE ARTICLES Russian patent published in 1997 - IPC

Abstract RU 2079466 C1

FIELD: production of ceramic articles. SUBSTANCE: dacite purple is treated in solution of Thiobacillus ferrooxidans, ratio of solid and liquid phases being 1:1. pH of the medium during treatment is 2-2.5, concentration being 100.0-321.5 ml/l. Dacite purple is ground in ball mill, the process is carried out in water being alkalized to pH 7-8. Potassium hydroxide is used as alkali. EFFECT: improved efficiency. 3 cl

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RU 2 079 466 C1

Authors

Chukanova N.N.

Dates

1997-05-20—Published

1994-08-11—Filed