For waste oils and fats with high acid value, the suitable environmentally friendly catalysts are solid acid and ionic liquid.
对于酸值高的废油脂，宜采用固体酸和离子液体等环境友好催化剂。
In this paper, technological process of conversion of waste liquid of sodium formate to oxalic acid is described.
本文研究了甲酸钠废液转变为草酸的工艺流程。
The liquid waste of synthesizing adhesive was treat with boric acid, sodium sulfate and PFS by coagulation. Through a series of experiment, the best operation parameter was gained.
选用硼酸、硫酸钠和聚合硫酸铁进行复配，采用混凝法处理制胶废水，做混凝实验，得出最佳操作条件。
As hydrochloric acid cleaning has the advantage of strong cleaning ability, low price, easy to get goods, convenient transport, simple operation, good effects and harmless waste liquid.
由于盐酸清洗具有清洗能力强，价格便宜，货源易解决，运输简便，清洗操作容易掌握，清洗效果好，废液无毒易处理等优点，在清洗中经常被采用。
Compound cross-linking chemical is compounded by premium priced organic metal salts, derivatives of carbon acid, and low-cost organic metal salts in paper waste liquid in a certain percentage.
复合交联剂由高价有机金属盐、碳酸衍生物及造纸废液中低价有机金属盐按一定比例复合而成。
Compound cross-linking chemical is compounded by premium priced organic metal salts, derivatives of carbon acid, and low-cost organic metal salts in paper waste liquid in a certain percentage.
复合交联剂由高价有机金属盐、碳酸衍生物及造纸废液中低价有机金属盐按一定比例复合而成。
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