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我国钨矿资源和产量居世界首位,长期以来,我国钨精矿除内销外,还大量出口。为了提高在国际市场上的竞争能力,必需提高钨精矿的主品位,并降低其中有害杂质含量。磷是钨精矿的有害杂质元素之一,国家标准规定钨精矿含磷最多不得超过0.1％,有的特级品含磷不得超过0.02-0.03％,可见,限制磷含量要求严格。要提高产品等级,需设法降磷。对白钨精矿可采用酸浸除磷的办
China’s tungsten resources and production ranks first in the world, for a long time, in addition to domestic sales of tungsten concentrates, but also a large number of exports. In order to improve its competitiveness in the international market, it is necessary to raise the main grade of tungsten concentrates and reduce the content of harmful impurities therein. Phosphorus is one of the harmful impurity elements of tungsten concentrates. The national standard stipulates that the phosphorus content of tungsten concentrates should not exceed 0.1% at most, and some super-grade products contain no more than 0.02-0.03% of phosphorus. Therefore, the limit of phosphorus content is strictly required. To improve product quality, we must try to reduce phosphorus. White tungsten concentrate can be acid leaching of phosphorus to do