To meet the demand for high purity TEA in domestic market, 99% high purity triethanolamine (TEA) was prepared by a route using low purity TEA as raw material.
为满足国内市场对高纯度三乙醇胺的需求，采用以低纯度三乙醇胺为原料的生产路线，获得含量99％的高纯度三乙醇胺。
In a word, with anode solution as raw material, production of high-purity manganese carbonate is feasible in technicality, reasonable in process and considerable in economic benefit.
总之，以电解锰的阳极液为原料，生产高纯碳酸锰在技术上是可行的，工艺上是合理的，经济效益是可观的。
High purity zinc oxide powder is an important industrial raw material and its economic value is high.
高纯氧化锌粉是一种重要的工业原料，具有很高的经济价值。
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