铅锌冶炼厂大都副产金属镉、硒,一般以金属形式出售。把它们加工成经济价值更高的产品,是冶炼厂改革产品结构的一条现实途径之一。利用副产金属镉、硒生产镉红,可以利用大部分通用的冶炼设备,加上其它显见的原因,经济效益优于专业化工厂。 Lead and zinc smelters mostly by-product metal cadmium, selenium, generally sold in the form of metal. Processing them into products of higher economic value is one of the realistic ways for smelters to reform their product mix. By using cadmium and selenium, which are by-products, cadmium red is produced, most commonly available smelting equipment can be used, and for other obvious reasons the economics are superior to those of a specialized chemical plant.