Apparatus for calcining wet powdery gypsum

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including solid reactant and means charging solids into – or...

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34 57A, 432 58, 422233, B01J 600, F27B 1500

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active

041181964

ABSTRACT:
Apparatus for calcining wet powdery gypsum which comprises:

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