• 四氢噻吩城市首选随着我国西输等工程的建设成功市场前景广阔

    Tetrahydrothiophene is the preferred Odorant in city gas. It is being used widely in market with the success of West-to-East gas Project.

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  • 试验研究了浮技术对聚驱产出污水处理效果详细探讨了浮选类型时间量等对其处理效果的影响。

    The effect of flotation-agent type, dosage, and air-flotation time and air solution volume on treating result is discussed in detail.

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  • 恒沸共沸蒸馏乙酸萃取反应精馏过程乙醛合法生产乙酸乙酯三塔连续精馏过程以及乙烯乙酸相催化反应的精制工艺过程。

    Three-tower continuous distillation process of ethyl acetate from aldehyde condensation and purification by gas-phase oxidation of acetic acid and ethylene were also discussed.

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  • 四种无机阳离子澄清进行了室内浮清净试验,并进行对比试验。

    Four inorganic positive ion clarificants were studied indoor for floatation clarification in this paper. At the same time, we compared the results of liming and not liming.

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  • 四种无机阳离子澄清进行了室内浮清净试验,并进行对比试验。

    Four inorganic positive ion clarificants were studied indoor for floatation clarification in this paper. At the same time, we compared the results of liming and not liming.

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