炉酸是在电炉中用焦炭还原磷矿制得的。
Furnace acid is made by reducing phosphate rock with loke in an electric furnace.
介绍了铁合金生产以半焦煤代替部分冶金筛下焦炭作还原剂的生产情况和出现的问题。
It introduces the production situation and problems which coke is partly replaced by semicoke coal as reductant in ferroalloy production.
试验结果表明，还原剂焦炭用量对金属钴镍收率影响最大，用量过大或过少都不利于钴镍的回收，而对铜的回收率影响不明显；
The experiment results showed that the dosage of coke had the largest effect on the recovery of cobalt and nickel, but no obvious influence on the recovery of copper.
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