The results of application evaluation indicate that this mixed carboxylic ester is a kind of flotation agent for coal preparation with good performance.
经应用评价结果表明，该羧酸混合酯是一种性能优异的选煤浮选剂。
2
The method of seeking rectifying factors in the mixed sample of alcohol, aldehyde and ester with chromatography is introduced.
介绍运用色谱技术对醇、醛、酯混合标样求校正因子的方法。
3
Mixed dibasic acid dimethyl ester was synthesized from methanol and mixed dibasic acid, the byproduct of adipic acid, using sodium sulfate monohydrate as catalyst.