活性剂

The influence of the arsenic concentration and the sodium lignosulphonate concentration on the growth of the thiobacillus ferrooxidans strains, as well as the rates of bacterial oxidation of arsenopyrite and pyrite were studied.

本文着重研究了氧化亚铁硫杆菌对砷黄铁矿和黄铁矿单矿物的氧化规律及其性能之差异，考察其对砷的适应能力及表面活性剂的影响。

To investigate the influence of surfactant molecular structure on micellization in solution, we used molecular dynamics to simulate the molecular structure and interaction of three alkyl aryl sulfonates in vacuum and in solution.

为研究不同结构的表面活性剂分子在溶液中胶束化能力的差异，采用分子动力学方法模拟三种烷基芳基磺酸盐在真空和水溶液环境下的结构与相互作用。

Secondly, this paper describes the effect of presence of inorganic salts namely, sodium chloride, sodium sulphate, sodium nitrate, sodium dihydrogen phosphateand and sodium bicarbonate on decolouration of azoic dye effluents by the UV-Vis /Ferrioxalate/H2O2 process.

本课题可以得到以下结论：在偶氮染料光催化氧化脱色反应中，无机盐有抑制作用，并且依其种类不同，其抑制作用亦有差异；表面活性剂对于染料的脱色降解存在不同程度上的抑制作用。

The product is used in producing new generation of bactericide and cationic surfactant with powerful bactericidal capacity, good compatibility, wide material source and low cost.

用该产品生产的新一代杀菌剂、阳离子表面活性剂，具有更强的杀菌能力和更优越的配伍性能，且原料来源广泛，价格低廉。

For comparison, ordinary aqueous precipitation method was used to prepare barium carbonate by using Ba(NO3)2 and NH4HCO3 as the reactants. The influences of adding sequence of the reactants and surfactant et al. on the products were discussed.

此外，以Ba(NO_3)_2与NH_4HCO_3为反应起始物，采用沉淀法研究了制备BaCO_3的影响因素，考察了加料方式、表面活性剂等因素对产物形貌的影响。

The results have indicated that acid bating fits to bating of sheepskins especially for sheepskin's loose structure because of more alleviate action of acid enzymes, and acid bating has little loss of hide substance.

结果表明，酸性酶软化作用温和、深透，对胶原损害小，特别适合于组织结构疏松的绵羊皮生产。酶制剂用于绵羊服装革鞣前准备其它关键工序，可减少硫化物、表面活性剂等有害物质的用量，提高铬结合，减少作用时间，提高面积得率和成革质量。

Alkaline lipase Greasex 50L is one of the leather enzyme products of Novo Nordisk AS. After extensive control trials on pigskins, evaluating effects by degree of fat removal and qualities of result leather, we got1 Fat removal rate can be increased by 10%and leather qualities such as napping and softness can be improved by using Greasex 50L together with liming enzyme NUE 0.6 MPX2 Some surfactant together with Greasex 50L is good to fat removal, and the recommended ratio is 0.05%～0.1%∶13 The fat content in the skins is lower after treated with Greasex 50L,which also benefits the successive processes, such as bating, pickling and tanning. As a result, the leather qualities, such as fineness of grain, softness, napping and evenness of dyeing can be improved.

Greasex 50L是诺和诺德公司生产的碱性脂肪酶已在皮革工业中广泛使用，为了更好地应用这种酶制剂，我们对Greasex 50L在猪皮方面的应用条件进行了研究采用对比的方法，用脂肪去除率和皮革的质量作为评价标准，研究结果表明1适量的浸灰酶 NUE 0.6 MPX可使Greasex 50L的脱脂率增大，同时可改善皮革的起绒状况和革身柔软性2一定量的表面活性剂与Greasex 50L配合使用，有利于脂肪的去除，用量为平平加的0.05%～0.1%3 经Greasex 50L脱脂的裸皮在鞣制后油脂含量也较低，有利于后续工序进行，从而使成革粒面平细、革身柔软，臀部起绒得到改善，染色均匀性良好

Effects of the position of benzene ring on the carbon chain were also studied.

所以从理论上说，带附加基团苯环连接在靠近烷基链中间位置的长碳链烷基苯磺酸盐有可能是理想的驱油用表面活性剂的趋向。

Cu complex of the surfactant have water soluble ability and surface activity, can catalyze the air oxidation of benzyl alcohol or Benzoin not only in DMF solution but also in alkali water solution.

表面活性剂铜配合物具有较好的水溶性和表面活性，不但在DMF溶剂中有效催化苯甲醇、安息香的空气氧化反应，而且在稀碱溶液中形成的金属胶束也可催化氧化苯甲醇。

A new surfactant-polymer binary compound system without alkali was proposed and used to attain ultra-low interfacial tension of oil.

为此提出利用不加碱可形成超低界面张力的聚合物/甜菜碱表面活性剂二元复合体系驱油。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。