查询词典 quaternary salt

When the concentration of quaternary ammonium salt was less than 120mg/L, or that of hydroxy ethyl cellulose was less than 220mg/L, both of them could be used as nutriment to be degraded by aerobe.

当水样中季铵盐浓度小于120mg/L，羟乙基纤维素浓度小于220mg／L时，它们不具生物毒性，可作为营养物质被微生物利用。

It is found that quaternary ammonium salt and alkylamine can react with montmorillonite and rectorite via cation exchange reaction and the resulting OMMT and OREC can act as nano-scale filler to PPC materials due to its increasingly swollen gallery spacing.

主要研究结果如下：(1)采用阳离子交换法，制备了不同的有机胺改性的有机蒙脱土和有机累托石，用XRD， FTIR， TGA表征了插层效果。

Objective: To observe the effect of quaternary ammonium salt derivation of haloperidol on coronary artery.

目的：观察氟哌啶醇季铵盐衍生物对冠状动脉的作用。

In this paper, we synthesized two kinds of new carboxylate Gemini surfactants and one of new bis-quaternary ammonium salt.

本论文共合成了两种新型羧酸盐Gemini 表面活性剂和一种新型季铵盐Gemini 表面活性剂。

The result indicated that cationic quaternary ammonium salt decolorizer was a kind of effectual decolorizer for leather dye wastewater.

结果表明季胺盐类脱色剂对皮革染料废水具有良好的脱色效果。

Haole Sanitary Fisished Cloth is produced by immersion of pure cotton cloth in sanitary finishing agent containing mainly organic silicon quaternary ammonium salt, followed by processes of rolling, finalizing and drying.

提要 豪乐卫生整理布是用以有机硅季铵盐为主要成分的整理剂处理后的纯棉布。

The quaternary ammonium salt of quinoline synthesized by alkyl halide and quinolin etc.,can be used as corrosion inhibiter during acidizing treatment of oil well when it is compounded with organic amine,suitable solvent and surfactant.

以烷基卤化物与喹啉等原料合成的喹啉季铵盐，当其与有机胺、适当溶剂、表面活性剂复配后，可作为油井酸化作业的酸化缓蚀剂。

In this Ph. D. dissertation, reverse microemulsion method was fully used infabricating and modifying polyacrylamide with functional and high-relative moleculeweight. The copolymerization of 2-acrylamide-2-methylpxopanesulfonic acid, fluorescent monomer 4-methoxy-N-(2-N\', N\'-dimethylamino ethyl)naphthalimide alkyl chloride quaternary ammonium salt, fluorescentmonomer 4-(N\'-methyl-1-piperazinylallyl)-N-butyl-naphthalimide chloride quaternaryammonium salt, Cationic monomer dimethylethylammonium bromide and hydrophobical monomer octadecylacrylate with acrylamide and properties of the copolymers werestudied. The interaction between five polymers and Al_2O_3(012) crystal surface have beensimulated by Materials Studio 3.0 program package, binding energies and non-bondinteraction energies and deformation energies have also been acquired.

本文以制备具有较高相对分子质量和功能型PAM为研究目的，将反相微乳液法运用到其制备及改性的有关环节，通过反相微乳液聚合工艺，将几种改性功能单体2-丙烯酰胺基-2-甲基-丙磺酸、荧光单体2-(4-甲氧基-1，8-萘二甲酰亚胺基)-乙基二甲基烯丙基氯化铵、荧光单体4-(N'-甲基-1-哌嗪基)-N-丁基-1，8-萘烯丙氯季铵盐、阳离子单体丙烯酰氧乙基-二甲基-乙基溴化铵和疏水单体丙烯酸十八酯与AM共聚，制备AMPS改性PAM、荧光示踪型PAM、阳离子单体DMB改性PAM和OA改性PAM等四类不同功能单体改性PAM，并研究其应用性能。

The experimental results showed that the double salt Na2SO4·MgSO4·4H2O forms in the quaternary system Na+,Mg2+//SO42-,B4O72--H2O at 288K. The quaternary system has three invariant points F1,F2, and F3, seven univariant curves E1-F1,E2-F1,E4-F3,E5-F3,E3-F2,F1-F2,F2-F3, and five fields of crystallization [Na2SO4·MgSO4·4H2O,Na2B4O7·10H2O,Na2SO4·10H2O, MgSO4·7H2O,MgB4O7·9H2O].

研究结果表明：交互四元体系Na+，Mg2+//SO42-，B4O72--H2O 288K时的相平衡实验中，有复盐Na2SO4·MgSO4·4H2O生成，平衡相图中有3个共饱点，7条单变量曲线，5个结晶区，对应的平衡固相分别为Na2B4O7·10H2O，MgB4O7·9H2O，Na2SO4·10H2O， MgSO4·7H2O和Na2SO4·MgSO4·4H2O。

The results show that methyl group strengthens the electrostatic attractions, but reduces the H-bonds effect, while benzyl group can make both electrostatic and H-bond effects strong. The theoretical results are identical with the results of the collectors flotation tests. Collecting ability of the quaternary amine salts is better than that of dodecylamine and dodecyl bimethyl amine. The quaternary amine salt containing benzyl group performs best, and it is little affected by pH value. Substitution of N-containing polar group in amine collectors can impact the aluminosulicate minerals flotation.

研究结果表明：甲基的取代可增强阳离子的静电作用能力，同时，削弱它与矿物表面之间的氢键作用；苄基的取代不仅增强药剂的静电效应，而且增加氢键的结合能力；理论分析结果与浮选试验结果一致，季铵盐的浮选能力较伯胺与叔胺的强，连有苄基的季铵盐对铝硅酸盐矿物的捕收能力最强，且受pH值影响小。

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。