由于烧碱蒸发结晶中氯化钠的结晶是非常复杂的多相传热传质过程，能否使晶粒合理分布以过滤除去是氯碱工业提高产品质量的瓶颈。
The crystallization of sodium chloride is a very complicated process in evaporative crystallization of caustic soda which including multi-phase heat and mass transfer.
研究结果表明，联苯胺修饰膜对工业纯铁有很好的保护作用，在弱酸性、氯化钠以及强碱性介质中有良好的阻蚀性能。
The research results showed that the modified film had good anti-corrosion performance in weak acid, neutral solution containing Cl- and strong alkali.
用两次沉降取代了两次盐析，用少量絮凝剂取代了大量的氯化钠，工业废水的治理也得到了简化。
Double settling is used instead of double salting out, and less flocculant to replace large amounts of common salts required, thus the treatment of the waste is largely simplified.
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