Crude nickel carbonate can be precipitated from raffinate.
2
结果表明：乙二醇二甲醚为提取剂，粗产品中双黄酮类成分较高；
The results showed that using solvent ethyl diol dimethyl ether, biflavone content in crude extractings is higher than that obtained by using other solvents.
3
实验得到的粗产品中三氯化铝含量为95．50％， 氯化铁的含量为4．03％。
In the product, the content of AlCl 3is 95.50% , FeCl 3 is 4.03% .
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