叙述了软蜡经预处理后加入某种稀释剂，经催化氯化合成氯蜡- 42，副产试剂级盐酸的工艺方法及实验结果。
The preparation process and experiment results of chlorinated paraffin-42 and high-purity hydrochloric acid from low-point paraffin by catalytic chlorination are described.
实验结果表明：苦豆子盐酸提取物的超滤和稀释过滤能有效除去蛋白质和其他不纯物，透过液中总生物碱的回收率高。
The results showed that the ultrafiltration with discontinuous diafiltration could effectively remove proteins and other impurities. The recovery ratio of alkaloid from the permeate was high.
系统研究了以TBP为萃取剂， 乙酸丁酯、 二甲苯、 石油醚、 煤油为稀释剂，从高酸度盐酸溶液中萃取镓。
Extraction of Gallium from high concentration HCl solution using organic phases which composes of TBP and butyl acetic ester, xylene, petroleum ether and kerosene, respectively, are investigated.
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