查询词典 esterify

Secondly, preparing terpineol and discussion of its results. It was put up by reaction-temperature, reaction-time, the ratio of catalyst and raw material, the kinds of esterify and dosage, the choice of solvent, catalyst life-span and so on. It was discovered that turpentine transform ratio was 86.29%, the yield ratio of terpineol was 68.89%, the selectivity of solid superacid catalyst was 79.84%.

二，松油醇的制备及结果讨论，从反应温度、时间、物料配比、酯化剂的种类与用量、溶剂的选择、催化剂寿命等几个进行了考察，结果发现反应温度为T3、时间L5小时、酯化剂用F3、物料配比为H3％、溶剂用G等时，松节油的转化率为86.29％、松油醇的收率为68.89％、固体超强酸催化剂的选择性为79.84％。

Sodium5sulfoisophthalic acid dimethyl ester was prepared by sulfonation of mC 6H 4 2 with chlorosulphonic acid , treatment of the 5sulfoisophthalic acid with methanol to esterify the -CO 2H groups and separation of the product in the form of sodium salt of sulfonic acid.

研究了由氯磺酸和间苯二甲酸经磺化及酯化反应合成间苯二甲酸二甲酯磺酸钠盐的工艺方法，探讨了投料比、反应温度、催化剂用量和反应时间对产物的影

The yield of esterify is 97.5% and the catalyst can be recovered easily and reused many times.

催化剂易回收，具有较好的重复使用性能。

Esterify reaction is the key step in the process of PET equipment, the effect of which directly influences the posterior other two ones and affects the quality of product.

酯化反应是制造PET过程中的关键步骤，酯化反应进行的好坏直接影响后序的预缩聚反应和终缩聚反应，并影响产物的质量指标。

Compared with the traditional process of esterify reaction, Employing the method of distillation with reaction can simplify the esterifying process, and save much energy and money.

结果表明，与传统的酯化反应过程相比较，采用反应精馏法可以简化酯化流程，节省大量能量和开支，是一项切实可行的方案。

Chemical modification including oxygenation, esterify , graft copolymerization and so on.

化学改性主要有氧化、交联、酯化和接枝共聚。

The effect of reaction timcxreaction temperaturexpH and citrate concentration on the esterify process were discussed.

柠檬酸酯淀粉是一种具有抗性作用酯化变性淀粉，在国外广泛应用于面包、饼干及其它食品中，以改善食品品质。

It was also noted that lipases preferentially esterify the S-isomer of ibuprofen, thus the scheme for resolution of ibuprofen in organic solvent can be expressed as follows

实验中发现脂肪酶优先酯化布洛芬S-对映体，因此在有机相中用脂肪酶催化酯化拆分布洛芬的方案可表示如下

Based on single factor experiment including esterify ing temperature, esterify ing time,and vitriol dosage,the conditions for esterify ing free fatty acid were optimized by response surface methodology and by determining acid value and content of V_E as evaluation indexes.

本研究在酯化温度、酯化时间和浓硫酸用量三个单因素试验的基础上，利用响应面分析法，以酯化后脱臭馏出物的酸价和VE含量为评价指标，对游离脂肪酸酯化条件研究。

Reaction of synthesizing polyester commonly including three parts: esterify reaction, early polycondensation and sequel polycondensation. This paper only discusses two of them: esterify reaction and sequel polycondensation.

合成聚酯的反应一般分为三个部分进行：酯化反应部分、预缩聚部分和终缩聚部分，本文对酯化部分和终缩聚两个部分进行研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。