System for use middle -low grade phosphorus ore production phosphoric acid

• Main Authors: DENG XINLI, WU MINJUN, RAN RUIQUAN, LIU HUI, YANG YEXIN
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The utility model discloses a system for use middle -low grade phosphorus ore production phosphoric acid, it includes phosphate rock thick liquids storage tank, reaction, cooler, digestion tank and the clarification tank that connects gradually, reaction connection sulphuric acid storage tank, through desulfurization pipeline intercommunication, be provided with thick liquids measuring pump and governing valve on the desulfurization pipeline between phosphate rock thick liquids storage tank and the digestion tank, inside sparge pipe and the desulfurization pipeline intercommunication of being provided with of digestion tank, the digestion tank bottom is provided with sample extraction pipe. The utility model discloses a with the sulfate radical content that has reduced finished product phosphoric acid among the phosphate rock thick liquids introduction digestion tank, the sulfate radical can remain stable in messenger's clarification tank, can adjust the addition in desulfurization ore deposit simultaneously