论文部分内容阅读
据1979年的调查,全国硫精砂总产量为490万t。其中:化工部生产251万t;冶金部作为副产品回收239万t。1988年,广东云浮硫铁矿投产,使全国硫精砂的总产量达到750万t。化工部生产硫精砂,由于存在采矿基建投资大(约占总投资的60%);建设周期长;硫精砂成本高(一般约为50~90元/t)等问题,限制了硫精砂产量迅速增加,从而影响到硫酸工业及其有关工业的发展。我国高硫煤矿区蕴藏着较丰富的硫铁矿
According to a 1979 survey, the total output of sulfur concentrate in the country was 4.9 million tons. Of which: 2.51 million tons were produced by the Ministry of Chemical Industry; 2.39 million tons were recovered as a by-product from the Ministry of Metallurgy. In 1988, Guangdong Yunfu pyrite put into operation, so that the total output of sulfur fine sand reached 7.5 million t. Due to the large mining infrastructure investment (about 60% of the total investment), the long construction period, the high cost of sulfur concentrate (usually about 50-90 yuan / t) and other issues, the sulfur content of sulfur Sand production increased rapidly, thus affecting the sulfuric acid industry and its related industries. China’s high-sulfur coal reserves contain a wealth of pyrite