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Individual
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Individual
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Priority to ES480674ApriorityCriticalpatent/ES480674A0/en
Publication of ES8501726A3publicationCriticalpatent/ES8501726A3/en
Publication of ES480674A0publicationCriticalpatent/ES480674A0/en
Method comprises wet extn. of the ash from a coal-fired thermal power station. The drying and sieving operation is accompanied by crushing, with final screening to eliminate impurities and sulphur. - The prod. is mixed with agglomerate such as gypsum or cement for addn. of sand, and bagging.
ES480674A1979-05-171979-05-17
MANUFACTURE SYSTEM FOR PLASTER PRODUCTS.
GrantedES480674A0
(en)
Process for manufacturing cement from raw material containing noxious substances, especially from raw material containing sulphur, alkalis and/or chlorine.