solvent method

Selection of suitable solvent is the key to organic solvent method, the solvent alcohol can easily esterify with tridecandioic acid in case of refining, it may cause decreasing in yield and make an impact on product purity.

溶剂法的关键是选择适宜的溶剂，醇类溶剂在精制条件下易与二元酸发生酯化反应，降低收率，影响产品纯度；

互联网摘选

Sodium carboxymethyl cellulose ( CMC ) of low viscosity grade was synthesized by solvent method.

采用溶剂法合成了钻井液用低粘度羧甲基纤维素钠 ( CMC ).

互联网摘选

The research advance of purifying wet process phosphoric acid with solvent extraction method was introduced.

介绍了溶剂萃取净化湿法磷酸的研究进展情况.

网络文摘精选

The macroreticular resin to adsorb as the better method to replace the solvent extraction designed.

用大孔网状树脂吸附法代替溶媒萃取法,分离纯化柱晶白霉素.

网络文摘精选

The pretreatment method of chloroprene rubber sample, choices of solvent and emulsifier, identity of viscosity for test solution and for blank solution, interferences and detection limit were studied.

对样品处理方法、溶剂及乳化剂的选择、试液与空白溶液粘度的一致性、各种干扰及检出限进行了考察。

互联网摘选

Tetrachlorophthalic anhydride was synthesized with phthalic anhydride as raw material, compounded iodine as catalyst by direct separation of crystal from solvent on the basis of solvent method.

在溶剂法基础上，以苯酐为原料，复合碘作催化剂，产品直接结晶分离的方法合成四氯邻苯二甲酸酐。

互联网摘选

Decanoyl acetaldehyde was extracted from houttuynia cordata thunb by the method of solvent extraction process.

利用溶剂提取法从鱼腥草中提取鱼腥草素.

互联网摘选

Study on the Synthesis of N, N ′-methylenebisacrylamide by Solvent method

溶剂法合成N，N'-亚甲基双丙烯酰胺的研究

互联网摘选

Theoretical calculation has been performed for the solvent effect and charge-separated excited state between tetracyanoethylene ( TCEN) and tetramethylethylene ( TME) by use of the ab initio method at the level of HF/ 6-31++ G and CASSCF ( 8,8)/ 6-31G.

用从头算方法，在HF/6-31++G和CASSCF（8,8）/6-31G基组水平上对四氰基乙烯与四甲基乙烯间电子转移的溶剂效应及电荷分离激发态进行了理论计算与研究。

互联网摘选

A new selective neural network ensemble method and its application in purified terephthalic acid solvent system

一种新的选择性神经网络集成方法及其在PTA中的应用

互联网摘选

New Technology of Aftertreatment of Solvent Method in Synthesis of Sobic Acid

山梨酸合成中溶剂法后处理新工艺

互联网摘选

A headspace gas chromatography method for the determination of solvent residual in epinastine hydrochloride was established.

建立顶空气相色谱法分析盐酸依匹斯汀中溶剂残留.

互联网摘选

Using adiabatic method, the kinetic parameters of paraphenylene diamine and Terephthalyl chloride in solvent system of N-methyl-2-pyrrolidone and calcium chloride have been measured.

本文应用绝热法测定对苯二胺与对苯二甲酰氯在N-甲基吡咯烷酮-氯化钙体系中的反应动力学参数。

互联网摘选

Berberine hydrochloride extracted from rhizoma Coptis with dilute acid as solvent the method of immersion.

以稀硫酸水溶液作溶剂,采用浸渍法从黄连中提取黄连素.

网络文摘精选

Trimethoxysilane was synthesized with trichlorosilane and methyl by double solvent method.

采用双溶剂法,以三氯氢硅和甲醇为原料合成三甲氧基硅烷.

互联网摘选

Manufacturing of Oil Based Paints by Solvent Method

用溶剂法生产油基漆料

互联网摘选

The Extraction Technology of Pumpkin Seed Oil by Single-phase Solvent Method

单相溶剂法萃取南瓜籽油的工艺研究

互联网摘选

Diisopropyl phosphite was directly synthesized from phosphorus trichloride and isopropanol by using the solvent method.

以三氯化磷与异丙醇为原料,用溶剂法合成了标题化合物.

互联网摘选

Polymer dispersed liquid crystal ( PDLC ) films were prepared by Solvent Method.

用溶剂法制备了聚合物分散液晶膜.

互联网摘选

While the present testing methods of body surface purification are mostly dominated by naked-eye observing, weighing testing, and solvent testing method, etc.

目前对物体表面洁净度的检测，多采用的是人眼观察、称重检测、溶剂法等方法，导致人为干扰因素过多、操作复杂、精度低。

互联网摘选