Resisting water, acid and alkali properties of the modified nano-silica-filled vulcanizes can be improved accordingly, and leaching liquor ion form vulcanizes decreases.
硫化胶填充纳米二氧化后，耐酸性、耐碱性、耐水性得到了不同程度的提高，硫化胶浸出液离子降低。
Rare earth elements in the aqueous leaching liquor of chlorinated mine mud from Sichuan West is of lower content, they can be separated by naphthenic acid extraction.
川西稀土矿泥氯化后水浸液中，稀土含量较低，可借助环烷酸萃取法分离出稀土元素。
There are still some problems in weak-acid leaching technology selection, leaching liquor preparation and leaching liquor application.
浸出技术是地浸采铀的关键技术之一，在微酸浸出工艺的选择、溶浸液配方与使用方法等方面，尚存在一些问题。
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