查询词典 acid process

By means of molecular designing, a series of sodium branched-alkyl benzene sulfonates weresynthesized through seven process, involving Frieded-Crafts reaction, Grignard reaction, sulfonationand neutralization. Those isomers have similar structure, carbons of same quantity, but the position ofalkylaryl dissimilarity. Liner fat acid, metaxylene and halogenated hydrocarbon of different carbonnumber were used as the starting materials. Optimum processing condition was confirmed consideringinfluence of a series of reaction factors such as feed proportioning, quantity of catalysts, quantitysolvent, reaction time, temperature and pressure. Eight kinds of isomers of sodium hexadecylxylolsulfonates were finally synthesized, and characterized by FT-IR.

本文通过分子设计，以不同碳数直链脂肪酸、间二甲苯以及不同碳数的卤代烷为原料，经酰基化、格氏反应、加氢还原、磺化及中和等反应，合成了结构相似、烷烃链碳数一定、芳基在烷烃链不同位置的烷基芳基磺酸盐同分异构体；并考察了原料配比、催化剂用量、反应时间、反应温度、溶剂用量、反应压力等一系列因素对各反应的影响，进而确定最佳工艺条件，最终合成出十六烷基二甲苯磺酸钠的八种同分异构体，利用 FT-IR 对产物结构进行了分析。

The process was methanolysis ed alkyl inino-acetic acid ester hydrogen chloride salt from methyl-cyanide.

研究了由乙腈为原料经烷基亚氨基醋酸酯盐酸盐醇解制备原乙酸三甲酯的工艺方法，对投料比、反应温度、反应时间及中和指示剂等工艺条件进行了研究，得出较优惠的工艺条件。

The mechanism of organic wastewater treatment by using the thermophilic anaerobic microbe and the influences of temperature, pH value, loading rate, volatile fatty acid and the microbic carrier on the degradation process were discussed.

探讨了使用高温厌氧微生物处理有机废水的机理以及温度、pH值、有机负荷、挥发性脂肪酸、微生物载体等对有机废水处理工艺过程的影响。

Key words: sludge of wet-process phosphoric acid; comprehensive utilization; monoammonium phosphate MAP

关键词］湿法磷酸淤浆；综合利用；磷酸一铵

Studied the extraction and purification of glycyrrhiza acid from licorice residue,obtained the better process condition through effect factors and orthotropic experiments,the yield of monoammonium glycyrrhizinate was 1.45% and content was 95%.

对超临界萃取后固形物提取纯化甘草酸的工艺进行了研究，通过影响因素试验和正交试验得出最佳工艺条件，甘草酸铵收率1.45％，纯度95％。

The process of synthesizing DMGHCl with monochloroacetic acid as the starting material was simple and safte and the raw materials were easily obtained. It was suitable for Industry.

氯乙酸路线合成二甲基甘氨酸盐酸盐工艺简单，原料易得，安全性高，适合进行产业化。

According to the amino acid sequences analysis and the three-dimensional structure of MfphA,it was indicated that MfphA encoded by the novel gene located in bph gene cluster belonged to theα/βhydrolase family,which could hydrolyze the meta-fission products during the biodegradation process of monocyclic compounds.

根据MfphA的氨基酸序列分析和三级结构模拟的结果，说明mfphA基因所编码的酶属于α/β水解酶家族，可以在单环芳香化合物降解过程中水解芳环间位开环产物。

The second electrolytic process is successful, which is for production of monopotassium phosphate, hydrogen and chlorine from potassium chloride and phosphoric acid by using a cationic permselective membrane cell.

利用阳离子交换膜电解氯化钾和磷酸生产磷酸二氢钾并副产氢气和氯气的工艺路线是成功的。

Based on the studies of moderate temperature isomerization catalysts carried out by domestic and foreign researchers, the paper systematically discussed the influence of a variety of factors in process of commercial preparation on the performance of catalyst which applied Pd as its metal component and HM as its acid carrier. The paper also explored the deactivated reasons of catalyst and its regenerating measure. Preparation of mordenite and scaled up production of catalyst, stability of catalyst was demonstrated in a 100kt/a commercial plant. The findings provide important basis for preparing Pd isomerization catalyst and industrial application.

本文在国内外学者对中温异构化催化剂及工艺研究的基础上，以钯作为金属组份，氢型丝光沸石作为酸性载体，系统研究了工业制备过程中各种因素对催化剂性能的影响，以及催化剂失活的原因及再生方法，进行了丝光沸石及催化剂的放大生产，并在10万吨/年工业装置上考察了催化剂的稳定性，为制备载Pd异构化催化剂及工业应用提供了重要依据。

By a specific process,high quality calcium stearate was prepared by reaction of calcium hydroxide with stearic acid in water under morphemic pressure.

探讨了在常压下水介质中，使用直接法通过由硬脂酸与氢氧化钙反应，制得高质量生物钙强化剂的各种工艺条件。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。