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引言 NaOH分解法为钨冶金中分解黑钨精矿的常用方法,它具有工艺简单,分解率高等特点。但在通常条件下,由于NaOH与白钨矿(CaWO_4)难以反应,因此过去国内外学者都认为在工业条件下用NaOH法处理白钨精矿是不可能的;即使对黑钨精矿而言,也要求其中混杂的白钨矿相当少(Ca<1.0％),才能有好的分解效果,因而不得不要求选矿工作者将两者仔细分选,并要求用不同的工艺分别处理。我国过去主要是处理黑钨精矿,因此现有企业的流程和设备主要适用于黑钨精矿的碱分解法。
Introduction NaOH decomposition method for tungsten metallurgy decomposition of tungsten tungsten ore commonly used method, which has a simple process, high decomposition rate. However, under normal conditions, NaOH and scheelite (CaWO_4) hard to react, so in the past scholars at home and abroad that the treatment of scheelite with NaOH under industrial conditions is impossible; even for wolframite concentrate , Also requires quite few scheelite mixed therein (Ca <1.0%) to have a good decomposition effect and therefore has to be asked by the beneficiation worker to carefully separate the two and require separate processing with separate processes. In the past, China mainly dealt with wolframite concentrate, so the existing business processes and equipment are mainly suitable for alkali decomposition of wolframite concentrate.