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从矸石中回收硫精砂既增加了经济效益,也改善了环境污染,本文论述了现有回收煤系硫铁矿的三种工艺流程,指出了存在优缺点,并推荐一个工艺流程。
The recovery of sulfur refined sand from gangue not only increases the economic benefits but also improves the environmental pollution. This paper discusses three kinds of technological processes of recovering coal-based pyrite, points out the advantages and disadvantages, and recommends a technological process.