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Priority to MYPI2015000658ApriorityCriticalpatent/MY182958A/en
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Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
(AREA)
Abstract
A process for preparing calcium oxide from gypsum comprising the steps of mixing gypsum with an alkaline solution, where the alkaline solution concentration ranges from 0.1 M to 2.5 M to form a mixture, stirring the mixture, isolating hydroxide salt obtained, drying the hydroxide salt at a temperature ranging between 105?C to 110?C, crushing the hydroxide salt, and calcining the hydroxide salt at a temperature from 26?C to 600?C to produce calcium oxide. The most illustrative drawing: Figure 3
MYPI2015000658A2015-03-162015-03-16Preparation of metal oxide from gypsum
MY182958A
(en)
Process to obtain random terpolymers derived from itaconic acid, aconitic acid and/or its isomers, and alkenyl sulfonates and use of the product thereof