The results indicate no impurity accumulation after the analysis of the recovered solution which was circularly used for 50 times.

对经过50次循环使用的回收液进行分析，未见杂质积累现象。

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The total soda recovery can be raised and separate production of rock salt and soda can be achieved, which makes easy the later processing of the recovered solution.

既可提高总碱采出率，又可达到盐碱分层采出，为采出液的分离加工提供方便。

youdao

The total soda recovery can be raised and separate production of rock salt and soda can be achieved, which makes easy the later processing of the recovered solution.

既可提高总碱采出率，又可达到盐碱分层采出，为采出液的分离加工提供方便。

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