In producing Mn Si alloys with hot furnace, feeding ratio of s? Mn is regulated, and slag amount and pH value are controled.
介绍了电炉生产锰硅合金时，合金中硫含量随所用原料硫含量变化的情况。
The effects of feeding ratio, initiator type and concentration on the copolymerization were studied. The obtained copolymer was characterized by FTIR, 1H NMR and 13C NMR.
研究了原料配比、引发剂种类及浓度对共聚反应的影响，并用FTIR、1H NMR和13C NMR对共聚物结构进行了表征。
Under the condition of sodium chloride feeding ratio 7.5%, molecular sieve and refined product feeding ratio 1:1, the DOL product purity was up to 99.9% which had met the product quality requirements.
采用这种方法，在氯化钠的加料量为7.5%，分子筛和精制产品合适的加料比例为1：1时，产品纯度可达99.9%，满足二氧五环产品的质量要求。
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