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Priority to MYPI20004677ApriorityCriticalpatent/MY123492A/en
Publication of MY123492ApublicationCriticalpatent/MY123492A/en
Polysaccharides And Polysaccharide Derivatives
(AREA)
Processing Of Solid Wastes
(AREA)
Abstract
THE INVENTION RELATES TO A PROCESS FOR THE TREATMENT OF FLY ASH ACCUMULATING IN THE ELECTRO-FILTER OF THE SODA RECOVERY UNIT IN A SULFATE CELLULOSE MILL, THE ASH CONTAINING PRIMARILY Na CHLORIDE, Na CARBONATE AND K SULFATE, TO PRODUCE INDUSTRIAL RAW MATERIALS, IN WHICH PROCESS THE FLY ASH IS DISSOLVED IN WATER, THE CARBONATE PRESENT THEREIN IS BROKEN DOWN WITH HYDROCHLORIC ACID TO Na CHLORIDE, A SULFATE PRECIPITATION CHEMICAL IN CHLORIDE FORM IS ADDED, THE SULFATE PRECIPITATE OBTAINED IS SEPARATED FROM THE SOLUTION, AND THE CHLORIDE-CONTAINING SOLUTION IS RECOVERED.
MYPI20004677A2000-10-062000-10-06Process for the treatment of fly ash,using hydrochloric acid
MY123492A
(en)
Recovery of magnesium hydroxide and gypsum from natural or artificial brine, e.g. end liquor from potash works, uses ammonia or ammonium hydroxide for precipitation of magnesium hydroxide