Method for production of active calcium carbide

The present invention relates to a production method of active calcium carbonate. The production method of active calcium carbonate in existent technique is to make limestone decompose into CaO, and make it pass through the processes of digesting and carburizing and adds surface treating agent in dr...

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Bibliographic Details
Main Authors LIAN ENSHEN, CHEN GUORONG, ZHONG GUOLING
Format Patent
LanguageEnglish
Published 28.06.1995
Edition5
Subjects
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Summary:The present invention relates to a production method of active calcium carbonate. The production method of active calcium carbonate in existent technique is to make limestone decompose into CaO, and make it pass through the processes of digesting and carburizing and adds surface treating agent in dried calcium carbonate powder. This method has the disadvantages of various dry treatment equipments, high electric consumption and more product impurities. Said invention provides a wet process that at the emulsion outlet of carburizing tower is equipped with a mixing pool, and in the mixing pool a high-grade fatty acid mixed glyceride type surface treating agent is added, and then the above-mentioned materials are fully mixed, dehydrated, dried and screened, the invented active calcium carbonate product can be obtained.
Bibliography:Application Number: CN1994115875