磺酸

Application of reverse micella enzyme system in oil industry;2. Synthesis of ethyl oleate catalyzed by Lipex lipase in AOT/isooctane reverse micella r system was studied.

在二-(2-乙基己基)琥珀酸酯磺酸钠和异辛烷构建的逆胶束体系中，以Lipex脂肪酶为催化剂，合成了油酸乙酯，考察了各影响因素对其产率的影响，并进行了脂肪酶紫外荧光检测和体系粒度分析。

As shown in the experimental results: as the conductor of petroleum biological degradation, the quantity of microorganism is the important factor of petroleum degradation efficiency, the huge natural capacity of microorganism in soil is its foundation of bioremediation; petroleum density in certain scope do not affect for the degradation efficiency of petroleum, and in the density of 5%, its initial degradation efficiency is higher, however after training 40 days, this kind of advantage change weak gradually, the reason may be the petroleum of high density probably having certain poison role for microorganism; the best ecological condition of petroleum contaminated soil bioremediation is that nutrition material C: N = 60, electron receives body HiOi joining quantity amount to 12 mg/g, water content is 50%, surface activator is anion surface activator of 12 Wan base benzene sulphur sour sodium; the relation of primary and secondary of factor is water content, surface activator, nutrition material and electron receiver.

试验研究结果表明：作为石油生物降解的执行者，微生物的数量是影响石油降解效率的重要因素，土壤中微生物的巨大的自然容量是其生物修复的基础；石油浓度在一定范围内对石油的降解效率并没有影响，并且在5％浓度时，其起始降解效率较高，但是到了培养40天以后，这种优势渐渐变弱，可能还是高浓度的石油对微生物有一定的毒害作用；石油污染土壤生物修复的最佳生态条件为：营养物质C：N为60，电子受体H_2O_2的累计加入量为12mg/g，含水量为50％，表面活性剂为阴离子表面活性剂十二烷基苯磺酸钠；因素的主次关系为：含水量、表面活性剂、营养物质和电子受体。

In this paper,we have discussied the desulphurization me- chanism of sulphide catalyzed by the PDS in the level of elec- trons,and proposed the model of the two-center mechanism.

本文在电子水平上探讨了双核酞菁钴磺酸盐催化氧化硫化物的反应机理，提出了 PDS 自解氰化物中毒的双核双中心反应机理模型。

Experimental study on the metal surface cleaning agent re-oil preparation process of the series,Obtained by experiment the optimum cleaning process conditions:2g respectively SDBS,2g sodium silicate,2g sodium nitrite dissolved in 100 ml of distilled water,making the steel sheet coated with oil immersed in cleaning agents,under the conditions which keeping the washing temperature 30℃,Stirring rate of 2 files,Cleaning time for 5 min of the cleaning Cleaning the oil to achieve the highest rate of 99.62%,Corrosion rate can be controlled below 0.006%.

实验研究了金属表面重油污清洗剂制备的系列工艺，通过实验得出其最佳的清洗工艺条件：分别取2g十二烷基苯磺酸钠、 2g硅酸钠、2g亚硝酸钠溶于100毫升蒸馏水中，将涂有油污的钢片浸入清洗剂中，在清洗温度为30℃，搅拌速率为2档，清洗时间为5 min的条件下清洗，其油污清洗率最高能达到99.62%，腐蚀率能控制在？以下。

The humidity resistance and the sensitivity to chemical warfare agents simulants of the tuned films were also investigated.Self-assembled LBL polyaniline films were prepared from aniline monomers by in situ polymerization and the mechanism of film formation was discussed. It was proposed that the self-assembly of polyaniline occurred through the quick absorption of aniline monomer cations or aniline monomer cation radicals on the glass surfaces by electrostatic attractions to form homogeneous polymerization centers, then increased gradually by the way of upright to the glass supports for extensity, leading to the polyaniline chain growth. The polyaniline was doped under acidic condition to absorb anionic polyelectrolyte, such as sodium polystyrene sulfonate based on the electrostatic force, or to adsorb polymer based on hydrogen-bonding interactions, for example Polyvinyl Alcohol, and then recycled to fabricate_n or_n self-assembled multilayer films.

跟踪了原位聚合的具有纳米结构的聚苯胺多层自组装膜的成膜过程，提出了该自组装膜的成膜机理：聚合反应初始阶段的苯胺阳离子或苯胺阳离子自由基通过静电作用快速吸附到带负电荷的基片表面，形成均匀的聚合中心，然后以垂直于基片的方式进行链增长生成PANI；PANI在酸性条件下经现场掺杂后带正电荷，再通过静电作用吸附带负电荷的聚电解质如聚苯乙烯磺酸钠，或通过氢键作用吸附聚合物如聚乙烯醇，这样循环LBL-SA即得到_n或_n等原位聚合聚苯胺自组装膜。

Have you got any samps from China?

您有来自中国的甲基丙磺酸钠吗？

Have you got any samps from China?

Have您有任何甲基丙磺酸钠来自中国？

With a purpose of making comprehensive use of heavy residual oil, condensed polynuclear aromatic resin is prepared using petroleum asphalt as raw material and terephthalyl alcohol as cross-linking agent under the catalysis of concentrated sulfuric acid or p-toluensulfonic acid.

从综合利用重质油出发，以石油沥青为单体，对苯二甲醇为交联剂，在浓硫酸或对甲苯磺酸催化下合成了缩合多环多核芳香烃树脂。

Only the molar ratio 0.3 mol% of copper o-toluenesulfonate to alcohol or phenol was efficient to complete the reaction in a short time.

在乙酸存在条件下，体系的催化性能有显著提高，邻甲基苯磺酸铜用量仅需0.3 mol%就能使反应在较短时间内完成。

PS alkali lignin sulfonate is a new type of surfactant, which is extracted and purified from waste liquid of paper-making by adding phenol and aldehyde and sulphuric acid at high temperature.

PS碱木素磺酸盐是由造纸废液经浓缩加入酚、醛和硫酸等在高温下复配或反应后提炼出的 1种新型表面活性剂。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。