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TITANIUM GROUP ELEMENT BASED FLUORINE ADSORBING-DESORBING AGENT FOR FLUORINE-CONTAINING PROCESS LIQUID TREATMENT FOR WET ZINC SMELTING, AND METHOD FOR REMOVING FLUORINE
TITANIUM GROUP ELEMENT BASED FLUORINE ADSORBING-DESORBING AGENT FOR FLUORINE-CONTAINING PROCESS LIQUID TREATMENT FOR WET ZINC SMELTING, AND METHOD FOR REMOVING FLUORINE
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机译：基于钛族元素的氟吸附解吸剂用于湿法炼锌的含氟过程液及去除氟的方法
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摘要
PROBLEM TO BE SOLVED: To provide a titanium group element based fluorine adsorbing-desorbing agent for fluorine-containing process liquid treatment for wet zinc smelting which does not increase equipment cost, running cost or the like, and with which process control is facilitated, and to provide a method for removing fluorine.;SOLUTION: Using a titanium group element based compound selected from titanium, zirconium and hafnium as a fluorine adsorbing-desorbing agent, in a fluorine adsorbing stage, fluorine is adsorbed into the fluorine adsorbing agent, and, in a fluorine desorbing stage, the adsorbed fluorine is desorbed, and is reused as a fluorine adsorbing-desorbing agent. In the fluorine desorbing process, the value of the ratio between the content of the fluorine contained in the process liquid for wet zinc smelting and the content of the titanium group element contained in the titanium group element based compound to be contacted, [(the titanium group element content: mg/L)/(the fluorine content: mg/L)] is controlled to 20 to 600, a satisfactory contact state is maintained, and they are contacted for about 30 min.;COPYRIGHT: (C)2010,JPO&INPIT
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