活性剂

The results show that the oil flooding systems of carboxylate and its com-plex are unable to bear two charged metal cation.

该体系可以在较宽的矿化度范围及较宽的活性剂浓度范围内与大庆原油保持低界面张力（10￣（－2）mN／m）。

The results showed that the low interface tension is contributed by the carboxylate surfactant,but the transient process is caused by the interface active agents produced from the reaction between base in water and organic acid in crude oil.

结果表明，低界面张力主要是石油羧酸盐活性剂的贡献，而动态LIFT过程是由水相中碱与原油中的有机酸反应生成的界面活性物质引起的。

The results show that the stability of modified casein is increased and the finishing effect of leather is also improved.

随着研究的深人，发现在改性酪素中加人某些活性蜡或表面活性剂，可以赋予皮革更加滋润和柔软的手感，并可增加改性酪素的稳定性。

The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.

浓硝酸的加入量保证稀土氧化物溶解就可以，过量的硝酸可以加热除去；将可溶性钨酸盐和表面活性剂溶解于去离子水中，得到钨酸盐溶液，表面活剂性的加入量为反应原料重量的0-30wt％；将稀土硝酸盐溶液加入到钨酸盐溶液中搅拌，发生沉淀反应，磁力搅拌时间为25-60分钟，得到白色沉淀；将含有沉淀物的溶液作为前驱物加入到反应釜中，发生水热反应，反应温度为100-260℃，反应时间为24～72小时；离心分离，洗涤，干燥，即得所需产物。

The effects of the surfactants on bioleaching of chalcopyrite were evaluated by measuring the leaching rate of copper and the density of bacteria cells in solution.

通过对浸矿溶液中铜的浸出率以及细菌浓度的测定来评价表面活性剂对氧化亚铁嗜酸硫杆菌浸出效果的影响。

Of all chemicals, surfactant and chelator are well received for their properties of solubilization, mobilization and chelation, and so on.

当前对表面活性剂去除土壤中重金属污染的研究多处在实验室阶段，且主要是用在实验室柱淋洗和批试验中，不能有效地应用于实际。

However, the HDTMA-modified hydrobiotite has great adsorption to phenol and chlorobenzene.

有机水黑云母的吸附能力与表面活性剂的类型和层间有机碳含量的多少有关。

Some relative researches for the removal of surfactant in the chunnel of molecular sieves were investigated.

并对介孔分子筛孔道內表面活性剂去除进行了相关研究。

The preparation technology of Artemisia oil microcapsule was studied by complex coacervation method with gelatin and acacia .

采用复合凝聚法对艾蒿油的明胶/阿拉伯胶微胶囊抗菌防霉剂的制备工艺进行了研究，考察了乳化转速、表面活性剂用量比例、交联剂用量等因素对微胶囊形态的影响。

The invention adopts surfactant of amphipathic block copolymer as structure-directing agent to be dissolved in alcohol solvent, and niobium sources and aqueous solution of inorganic salts are added as structural promoter to be stirred for a certain period of time in the room temperature to form colloid; the colloid is then heated and volatilized under low temperature to remove the solvent and dried and calcined under high temperature to obtain the mesoporous columbium oxide.

本发明将双亲性嵌段高分子表面活性剂作为结构导向剂溶解于醇类溶剂中，加入铌源和无机盐类水溶液作为结构促进剂，在室温下搅拌一段时间后形成胶体，低温下加热挥发除去溶剂，经干燥、高温焙烧而成。

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。