A process for preparing alkylene glycols including reacting an alkylene oxide with water in the presence of a combination of additives and an anion exchange resin, wherein the combination of additives comprises carbon dioxide and an organic or inorganic base provided in an amount sufficient to maintain a pH of the reaction mixture between about 5.0 and 9.0, with the proviso that, when the base is bicarbonate or carbonate, then the anion exchange resin is a trimethyl benzyl ammonium anion exchange resin.

制備亞烷基二醇的方法美国一级婬片A免费看，包括讓烯化氧與水在添加劑組合和陰離子交換樹(shù)脂存在下進(jìn)行反應(yīng)午夜在线精品视频，其中添加劑組合包括二氧化碳和以足以保持反應(yīng)混合物的pH值在約5.0和9.0之間的量提供的有機(jī)或無(wú)機(jī)堿欧美VA日韩VA人妻VA，前提條件是當(dāng)堿是碳酸氫鹽或碳酸鹽時(shí)网站直接看操逼，陰離子交換樹(shù)脂是三甲基芐基銨陰離子交換樹(shù)脂日韩欧美亚洲中文字幕看。

Influences of the mole ratio of reactants,reaction time,dosage of catalyst and cyclohexane on yield are discussed.

考察了酸醇的物質(zhì)的量比色色色。com、反應(yīng)時(shí)間特黄一91、催化劑用量和帶水劑用量等因素對(duì)酯收率的影響。

The yield of morpholine can be 35% and the yield mixed alcohol can be 42% under temperature of 210℃, pressure of 2.0 MPa, the mass ratio of the water and morpholine by-product was of 1:1, using sodium hydroxide as catalyst, and the amount of 1.5% for the by-product, reaction time of 4 hours.

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SW480 and SW620 cells were also used to study the gene regulation with high carbohydrate intake, where it was shown that during glycolysis eight genes, HK1 (nuclear gene encoding mitochondrial protein, transcript variant 1), GPI, GAPD (glyceraldehyde-3-phosphate dehydrogenase), PGK1 (phosphoglycerate kinase 1), PGK2 (phosphoglycerate kinase 2), ENO2 (enolase 2), PKM2 (pyruvate kinase, muscle, transcript variant 2) and GLUT1 (facilitated glucose transporter, member 1) are over-expressed. In our study, we also found that during hypoxia of cancer tissues the resulting up-regulation of HIF-2α(hypoxia-inducible factor 2, alpha subunit) would in turn up-regulate the GLU1 gene, further activating glycolysis.

另一方面，在高碳水化合物的調(diào)控研究上亚洲免费的中文小说图片，吾人也利用SW480和SW620細(xì)胞株分析證實(shí)醣解水解活化過(guò)程中手机在线看免费无码毛片，其六碳醣激酶-1(HK1)、葡萄糖磷酸異構(gòu)酶美女自慰喷水黄色网站、3-磷酸甘油醛脫氫酶国产一级婬片A片免费丝袜、磷酸甘油酸激酶-1(PGK1)、磷酸甘油酸激酶-2(PGK2)永久看免费a级毛片、烯醇酶-2(ENO2)三级片视频图片小说、丙酮酸激酶-2(PKM2)以及葡萄糖輸送蛋白-1(GLUT1)等共有8個(gè)基因是連續(xù)上升的過(guò)度表現(xiàn)；此外邪恶帝★全彩邪恶爱，吾人也發(fā)現(xiàn)當(dāng)癌細(xì)胞在缺氧的組織中在线无码精品A片，其缺氧轉(zhuǎn)錄子-2α基因(HIF-2α)表現(xiàn)上升后，會(huì)活化GLU1基因上升性交精品，進(jìn)一步活化醣解代謝的進(jìn)行欧美性爱一级视频C。

Hydration reaction experiment of turpentine catalyzed by ZrO2/SO4-was conducted to study the catalytic function of ZrO2/SO4-and explore the optimum process conditions for synthesizing α-Terpineol.

通過(guò)用固體超強(qiáng)酸Zr02/SO4-為催化劑催化松節(jié)油水合反應(yīng)的實(shí)驗(yàn)，從中考察了此固體催化劑的催化性能欧美性视品，研究了合成α-松油醇的最佳工藝條件起碰在线免费视频。

Various synthetic method of 1,3-propanediol were introduced and compared, including hydration and hydrogenation of acrylaldehyde, carbonylation of epoxy ethane , microbiological fementation, the process starting from methyl aldehyde, etc.

介紹了1，3-丙二醇的幾種制備方法作爱免费视频网站，即丙烯醛水合-氫化法国产最新福利网站、環(huán)氧乙烷羰基化法、微生物發(fā)酵法和以甲醛等為原料的方法欧美精品性。

Factors of esterfication of mixed dibasic acid were studied: alcohol acid mol ratios, the content of the catalysts, the reaction time and the content of water carrier.

實(shí)驗(yàn)考察了混合二元酸酯化的影響因素：醇酸摩爾比丝袜交欧美另类、催化劑用量、反應(yīng)時(shí)間以及帶水劑的種類和用量對(duì)酯化率的影響又刺激又黄色网站。

For the first time, the pervaporation composite membranes with thickness of 5-30μm phosphatic poly active layer were prepared and utilized for the separation of ethanol-water mixture and in the coupled membrane reactor.

首次以磷酸酯化聚乙烯醇為活性分離層制備了活性層厚度為1-30μm的PPVA復(fù)合膜在线毛片免费，并用于乙醇-水混合物的分離及復(fù)合膜反應(yīng)器中av大片网站。

Oil-soluble Ag2S nanoparticles surface-modified by dialkyldithiophosphate were prepared by chemical synthesis.The synthesized Ag2S nanoparticles were characterized by transmission electron microscopy,X-ray powder diffraction spectroscope and UV-vis spectrophotometer.The friction and wear tests were carried out by a DF-PM dynamic and static friction tester.

在水醇混合介質(zhì)中，采用同陽(yáng)離子共沉淀法合成了有機(jī)化合物表面修飾的Ag2S納米微粒在线黄网站，在高速鋼基底上制備成膜欧美变态深喉囗交视频BD，研究了它的摩擦學(xué)特性。

The effects of catalyst composition, reaction temperature, space velocity, molar ratio of methanol to water, and reaction time on the performance of the microchannel reactor were investigated.

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