Calcium chloride and potassium sulphate production wastewater recycling technology and production equipment

The invention provides a calcium chloride and potassium sulphate production wastewater recycling technology which is characterized in that potassium sulphate production wastewater is used for high temperature hydrochloric gas absorption, generated concentrated hydrochloric acid is used for producing...

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Bibliographische Detailangaben
Hauptverfasser:	DAI SHANLE, QIU GUANGYI, JIANG JIE, LIN PENGPENG, HAO XIAOLEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention provides a calcium chloride and potassium sulphate production wastewater recycling technology which is characterized in that potassium sulphate production wastewater is used for high temperature hydrochloric gas absorption, generated concentrated hydrochloric acid is used for producing calcium chloride through aggregation-decomposition, wastewater produced in the production process of calcium chloride is delivered to various water usage processes in the production process and the high temperature hydrochloric gas absorption system in the production process of potassium sulphate, so that full cyclic utilization of wastewater produced in the joint production process of calcium chloride and potassium sulphate is realized, and in the joint production process, wastewater discharge is avoided and the enterprise cost is reduced. The invention further provides production equipment capable of realizing the wastewater recycling technology.