The classroom teaching quality evaluation plays an important part of the tertiary college management.

Influence of Transformer Tertiary Coil Leakage Reactance on Harmonic Filtration and Its Solution

变压器第三线圈漏抗对滤波效果的影响及其解决方法

互联网摘选

Tertiary water circulation and vadose field formation and evolution of Huanghua rift basin

黄骅裂谷盆地第三系水循环和渗流场形成演化的重溯

互联网摘选

It was revealed that: inhomogeneous distribution of the non-metallic inclusion and excessive bainite and tertiary cementite is the cause of cracking.

分析结果表明，铸锭中分布不均匀的非金属夹杂物和组织中过量分布于晶界的贝氏体和三次渗碳体是导致冷镦开裂的原因。

互联网摘选

Cumene adsorbed on the basic sites of CaO through H atom on tertiary carbon of the isopropyl group, which caused the weakening of the C-H bond on tertiary carbon of isopropyl group, and was favorable to peroxidation of cumene.

异丙苯通过异丙基叔碳原子上的氢原子与CaO催化剂表面碱中心发生化学吸附，弱化了异丙基叔碳原子上的C&H键，从而有利于催化异丙苯氧化合成CHP的反应。

互联网摘选

In the etherification process of FCC gasoline, reaction temperature has considerable effect on the etherification conversion of tertiary carbon olefins, polymerization conversion of diene and sulfonic shedding rate.

在催化裂化轻汽油醚化过程中，反应温度对叔碳烯烃醚化转化率、二烯烃聚合转化率以及阳离子交换树脂催化剂的脱磺速率有较大的影响。

互联网摘选

Some total syntheses of natural products via intramolecular Heck reaction were reviewed focused on how to construct tertiary carbon and quartus carbon chiral centers.

主要介绍了近年来分子内Heck反应在天然产物合成中的应用，重点介绍叔碳和季碳手性中心的构筑。

互联网摘选

For initiator B, when temperature is less than 180 ℃, MAH first reacts with secondary carbon of EB-block, secondly reacts with tertiary carbon; when temperature is higher than 180 ℃, the reaction rate of MAH reacted primary, secondary, tertiary carbon are similar.

对引发剂B，在温度低于180℃之前，仲碳原子最易发生接枝反应，其次是叔碳原子，当温度高于180℃后，伯碳原子、仲碳原子和叔碳原子的反应速率差不多。

互联网摘选

According to the features of the Guangzhou Ethylene Project and Guangdong market, a principle has been put forward to isolate and utilize carbon-4 distillate, The paper suggests to hydrate iso-butylene to make tertiary butanol, and then oxidize and esterify to make methyl methacrylate;

本文根据广州乙烯工程的特点及广东省市场的情况，提出抽余碳四馏份的分离和化工利用应注意的原则，并建议将异丁烯水合制叔丁醇，再氧化酯化生产甲基丙烯酸甲醋。

互联网摘选

In order to investigate the most suitable medium for the transesterification, tertiary butanol, toluene, hexane, isooctane were tested for lipase-catalyzed transesterification of ethyl ferulate with oleyl alcohol. Hexane has been found to be the optimal organic solvent.

以叔丁醇，甲苯，正己烷和异辛烷四种有机溶剂作为反应介质，考察不同有机溶剂对脂肪酶催化阿魏酸油醇酯转酯反应活性的影响。

互联网摘选

Improved Iso-Butene Hydration Method for Tertiary Butanol and Its Techno-economics

改进型直接水合法生产叔丁醇技术及其经济分析

互联网摘选

The extracting separation of Cu(ⅱ), Al(ⅲ) in tertiary butanol Ammonium sulphate copper system was studied.

研究了叔丁醇-硫酸铵-铜试剂体系中Cu（）、Al（）的萃取分离行为。

互联网摘选

A study focusing on the liquid-side volumetric mass transfer coefficient and gas holdups in aqueous solutions of alcohols ( ethanol, tertiary butanol, pentaerythritol) or electrolyte ( CaCl_2) was carried out in an internal airlift loop reactor.

在气升式内环流反应器中考察了微量醇类物质（乙醇、叔丁醇、季戊四醇）及电解质（CaCl2）对氧的液相体积传质系数和气含率的影响。

互联网摘选

Salting out of tertiary butanol water solution

叔丁醇水溶液的盐析分离

互联网摘选

The experimental results showed that the excessively high temperature on rate of reaction were unfavorable to the reaction, the increase of isobutene gas pressure, stir speed and initial concentration of tertiary butyl alcohol increased reaction rate, and the decease of particle size increased reaction rate.

结果表明，过高的温度对反应产生不利影晌；增加异丁烯气体压力、提高搅拌速度及叔丁醇初始浓度能提高反应速率；

互联网摘选

The catalytic amination of isobutene, the catalytic amination of methyl tert butyl ether and the reaction of tertiary butyl alcohol with HCl and NH 3 to give tert butylamine are discussed with emphasis.

着重讨论了异丁烯催化氨化法、甲基叔丁基醚催化氨化法和叔丁醇卤化再氨化法等3种方法。

互联网摘选

Preparation of tertiary amyl alcohol from hydration of isoamylene enriched C 5 fraction was carried in the laboratory. The effects of catalyst, reaction temperature, pressure, space velocity and water/ isoamylene ratio were investigated.

在实验室研究了从富含异戊烯的C5馏分水合制备叔戊醇的工艺，考察了催化剂、反应温度、压力、空速、水与异戊烯摩尔比等因素对水合反应的影响。

互联网摘选

A reaction kinetic model for synthesis of ETBE from ethanol and tertiary butyl alcohol, catalyzed by HF/ USY modified by hydrofluoric acid, was established.

以乙醇和叔丁醇为原料、氢氟酸改性USY分子筛为催化剂合成乙基叔丁基醚，建立了反应动力学模型。

互联网摘选

Objective To explore the feasibility of freeze drying of liposomes using tertiary butyl alcohol ( TBA)-water cosolvent systems.

目的考察用叔丁醇水共溶剂体系冻干脂质体的可行性。

互联网摘选

A series of multicomponent catalysts for preparation of methacrolein by oxidation of tertiary butyl alcohol were prepared.

制备了一系列叔丁醇氧化制甲基丙烯（？）的多组份催化剂。

互联网摘选

Preparation of tertiary amyl alcohol from iso amyl ene enriched c_5 fraction

富含异戊烯的C5馏分合成叔戊醇的研究

互联网摘选