醚化反应

讨论了淀粉与氯乙酸、氢氧化钠进行醚化反应的工艺条件，并对影响此醚化反应的因素进行了详细讨论。

Technical conditions for starch etherification with alkali and chloroacetic acid in ethanol medium have been discussed , and the influence of various factors on this etherifying reaction has been discussed in detail .

讨论了羟甲基化反应、醚化反应中体系pH值及原料配比对反应速率的影响。

The influences of pH value of material system during hydroxymethylation and etherification and the constituent ratio on reaction rate are also discussed .

改性Hβ-分子筛催化FCC轻汽油醚化反应性能的研究

Catalytic Performance of Modified H β - zeolite for Etherification of FCC Light Gasoline

硼改性Hβ-沸石上FCC轻汽油的醚化反应性能

Performance of etherification of FCC light gasoline on h β - zeolite modified by boron

羧甲基淀粉钠（CMS）的合成及影响其醚化反应的因素

Study on Synthesis of na-carbonyl methyl starch ( cms ) and factors influencing its etherification

研究了硅醚化反应的溶剂化作用，有机碱催化作用，Z、E异构体的活性。

The effect of solvent , catalyst , and reactivity of silylating agent toward the Z / E isomers of ⅱ were studied .

在羟丙基醚化反应中淀粉发生降解，产物MS与分子量变化无明确的定量关系。

All the HPS were the mixed products , whose MS had no clearly quantitative relation to the molecular weight distribution of the solid HPS .

微波合成样品经微波辐射脱除模板剂所得β沸石总酸量高，B酸分布好，醚化反应活性高。

The β - zeolite with microwave radiation in synthesis and removing template had a higher total acid amount and an ideal distribution of Bronsted acid , and the optimum etherification activity .

Ag修饰后β沸石基本保持了原有的结构特征，且酸强度增加，醚化反应活性增强5.83%。

Ag-modified β - zeolite kept its original structural characters , but strength of acid increased , the etherification reactivity raised by 5.83 % .

醚化反应采用两段反应器有利于TAME收率的提高。

The process favored the increase in TAME yield featuring stability of operation and product composition .

UNIFAC方法在醚化反应精馏中的应用分析

The Analysis of Application or UNIFAC Method in Etherification Reaction Distillation

在绝热床两段反应器上，对催化裂化C5馏份与甲醇的醚化反应进行了较细致地研究。

The process of etherification of FCC C 5 fractions was investigated on two stage adiabatic reactors .

本论文描述通过Williamson醚化反应合成了七种新型的双官能团冠醚化合物。

The synthesis of seven novel crown ethers with di-functional groups by Williamson reaction was described in this thesis .

本论文通过分子设计，以生物质腰果酚、1,3-二溴丙烷和氯磺酸为原料，依次经过醚化反应、磺化反应以及酸碱中和反应制备了一种新型腰果酚Gemini磺酸盐表面活性剂。

In this paper , a cashew-based Gemini surfactant was synthesized from cashew phenol , 1,3-dibromopropane and chlorosulfonic acid through etherification , sulfonation and neutralization .

Ti-Si复合氧化物催化剂的合成、表征及邻苯二酚O-单醚化反应性能

Preparation and Characterization of Ti-Si Mixed Oxides and Their Catalytic Activities for Vapour-phase O-Methylation of Catechol

介绍了甲基叔丁基醚（MTBE）的生产方法、工艺流程、醚化反应器和催化剂的最新研究进展。对我国的MTBE生产提出了建议。

The Latest progress on the method , etherifying reactor and catalyst of production of methyl tertiary butyl ether ( MTBE ) is reviewed .

QSA醚化反应率高，产品糊液稳定；

QSA has high etherification rate , the paste product is stable .

以活性炭为载体，制备了催化剂H3PW12O40（PW12）／C，并进行了混合烯烃与甲醇的醚化反应。

Active carbon supported H3Pw12O40 ( PW12 ) so9lid acid catalysts are prepared and employed in the etherification of light FCC gasoline with methanol .

比较了各馏分提高辛烷值的效果得出了C3～C6馏分是临氢醚化反应最佳原料的结论，经过临氢醚化反应，催化裂化汽油的研究法辛烷值可提高1.8～3.0单位。

The in - creased octane numbers of various fractions have been compared , and it turned out that the C_5 ~ C_6 light FCC gasoline is the best feedstock for etherification . By etherification , the RON of FCC gasoline : is increased by 1.8 ~ 3.0 units .

综述了近年来壳聚糖化学改性研究，从酯化反应、醚化反应、N-烷基化反应、Schiff碱反应、酰化反应、交联和接枝共聚反应等介绍壳聚糖化学改性研究发展现状；

The status with respect to research work on chemical modifications of chitosan , such as esterification , etherification , N-alkylation , acylation , Schiff 's base reaction , crosslinking and grafting were summarized .

实验结果表明，添加质量分数为10%的扩孔剂PEG4000成型，再共同浸渍氧化物制备的Hβ分子筛催化剂具有最佳的醚化反应活性。

The results showed that the H β zeolite catalyst prepared by extrusion in the presence of 10 % mass fraction of PEG-4000 pore-expanding agent followed by co-impregnation of two oxides exhibited higher activity .

以对甲氧乙基苯酚和环氧氯丙烷为原料，强碱KOH为催化剂，PEG400（聚乙二醇400）为相转移催化剂，通过醚化反应和胺化反应合成了美多心安。

This paper has studied strong alkali catalyst KOH and phase transfer catalyst PEG400 in synthesizing Metoprolol by 4 - ( 2-methoxy-ethyl ) phenol and epichlorohydrin by etherification reaction and amination reaction .

详细讨论了醚化反应最佳条件、MTBE的调合特性、恒沸蒸馏净化MTBE和回收甲醇等。

The blending characteristics of MTBE were examined in detail , because the MTBE produced was intended for a high octane gasoline blending component . Purification of MTBE by azeotropic distillation and recovery of methanol were also described .

通过双醚化反应、氯甲基化反应和在强碱性条件下进行的脱氯化氢反应，制备出可溶性聚（2甲氧基5辛氧基）对苯乙炔（PMOCOPV）。

A soluble poly ( 2 methoxy 5 octyloxy ) p phenylene vinylene ( PMOCOPV ) was synthesized through double etherification , chloromethylation and dehydrochlorination reactions .

在三甲基氯硅烷（TMSCl）、四氢呋喃（THF）体系中，芳香醛、酮和醇在金属锡的作用下发生还原-偶联-醚化反应生成相应的频那醇二醚类化合物。

A reduction-coupling-etherification reaction between aromatic aldehydes or ketones ( 1 ) and alcohols ( 2 ) to yield corresponding diether ( 3 ) of pinacol in the presence of tin and chlorotrimethylsilane .

本论文以没食子酸为起始原料，通过酯化反应、单甲醚化反应、溴化反应、环合反应和Ullman反应合成了α-联苯双酯。

α - DDB was synthesized by using gallic acid as initial material , through esterification reaction , monomethyl ether reaction , bromination reaction , cyclization reaction and Ullman reaction .

通过黄原胶与氯代烃（ArCl）进行醚化反应，在聚合物分子链上引入疏水基团，合成了具有疏水缔合性能的改性黄原胶（MXG）。

Hydrophobic association with the property of the modified xanthan gum were synthesized through the etherification of xanthan gum and chlorinated hydrocarbons ( ArCl ), introduced hydrophobic groups in the polymer chains .

改性β沸石上甲醇和异丁烯醚化反应的研究

Reactivity of modified β zeolite for etherification of methanol with isobutene

红霉素肟的醚化反应活性研究

Study on Reactivity of Etherification Protection for Hydroxyl in Erythromycin Oxime

离子液体催化作用下甲醇的羰基化及醚化反应的研究

The Investigation of Methanol Carbonylation and Etherification Catalyzed by Ionic Liquid