考察了若干种酸性催化剂对蓖麻油脱水的影响。
Effects of several kinds of acidic catalysts on castor oil dehydration have been explored.
固体酸性催化剂作为酯交换的催化剂是当前的研究热点。
The solid acid catalyst attracted much attention as the transesterification catalyst in recent research.
酸性催化剂不仅对纤维素和半纤维素起作用,对木质素也起作用。
The acidic catalyst showed a function not only on cellulose and hemicellulose, but also on lignin.
在酸性催化剂下,由葡萄糖和乙二醇经缩醛化反应制备了乙二醇葡糖苷。
Glycol glucoside was prepared from glucose and ethylene glycol in the presence of acid catalyst.
对固体酸性催化剂KHSO4催化地沟油的酯化及转酯化反应进行了研究。
The process for the esterification and transesterification of waste restaurant grease catalyzed by solid KHSO4 was studied in this paper.
以催化裂化油浆富芳烃馏分为原料,在酸性催化剂的作用下合成了沥青树脂。
Under the action of acid catalyst, the pitch resin was synthesized by using aromatic hydrocarbon enriched raw material from FCC slurry.
结论:碱性催化剂优于路易斯酸性催化剂,金属氧化物催化适合于工业化生产。
CONCLUSION: Basic catalysis is superior to Lewis acid catalysis. Using metal oxide is suitable for industrialization.
长链烷基苯是合成洗涤剂的重要原料,是由苯与长链烯烃在酸性催化剂作用下烷基化反应生成的。
Linear alkylbenzenes are important raw materials for the synthesis of washing agent and it is synthesized from the alkylation of benzene with long-chain alkene in the presence of an acid catalyst.
长链烷基苯是合成洗涤剂的重要原料,是由苯与长链烯烃在酸性催化剂作用下烷基化反应生成的。
The acid sites of zeolite Y catalysts for alkylation of aromatics with long-chain alkenes are determined with IR and TPD.
以1-庚烯为模型化合物,在小型固定流化床上研究了反应温度对汽油烯烃在酸性催化剂上反应的影响。
Effect of temperature on gasoline olefins cracking reaction over acid catalysts in fixed fluidized bed(FFB)reactor was studied and 1-heptene was used as model compound.
结果表明,不同类型的酸性催化剂,其裂化机理比率(CMR)明显不同,并与强b酸量和弱b酸量有关。
The results showed that the cracking mechanism ratio (CMR) was distinctly dissimilar over different types of catalysts and was correlated with strong Brnsted acid and weak Brnsted acid.
在酸性催化剂存在的条件下,由石蜡和微晶蜡的混合物催化氧化反应,再经物理调和,合成天然巴西棕榈蜡替代品。
The substitute for the Carnauba wax was synthesized by catalytic oxidation of paraffin and microcrystalline under acidic catalyst and then using physical blending method.
通过桐油与苯酚在酸性催化剂存在下反应,然后再在碱性催化剂存在与甲醛反应制得了一种热固性桐油改性酚醛树脂。
A new thermosetting modified phenolic resin by tung oil has been made through reaction between tung oil and phenol in condition of acid and then react to formaldehyde in condition of basicity.
结果表明,庚烯-1在酸性催化剂上会发生齐聚、裂化、骨架异构和氢转移等反应;在较高转化率下,甚至会发生四聚反应。
The results showed that the oligomerization, cracking, skeletal isomerization and hydrogen transfer reaction of 1-heptene occurred on acid catalysts.
研究了淀粉和乙二醇在酸性催化剂及助催化剂存在下一步直接合成乙二醇葡萄糖苷的工艺,考察了影响反应和产品性能的多种因素。
The new process of preparing glycol polyglucoside by starch and glycol in the presence of an acid catalyst and a catalyst promoter through one step reaction has been studied.
磷钼酸具有良好的酸性和氧化还原活性,被广泛用作活性催化剂。
Phosphomolybdic acid is widely used as active catalyst owing to its acid and redox activity.
且催化剂酸性越强,有机硫化物越易转化。
The transformation of organic sulfur compounds were more easily with more strong acidity of catalysts.
综述了近年来此类催化剂以其独特的不溶性、酸性、活性、选择性在有机合成反应中的广泛应用。
And this paper summarizes their progress and wide use in organic reactions according to their unique non - dissolve property, acidity, activity and selectivity in recent years.
通过对酸性硫来源的分析及酸性硫对催化剂影响的评价,总结了处理酸性硫的对策及方法。
Methods for treating the acidic sulfur are summarized based on the analysis of acidic sulfur source and the evaluation of the influence of acidic sulfur on catalysts.
四氢萘加氢裂化反应的关键步骤和双环化合物裂解的转化率以及单环化合物的产率与两种催化剂担体的酸性及反应温度有关。
The key steps of hydrocracking of tetralin, the conversion of double ring compounds and the yields of mono-ring compounds were affected by the reaction temperature and the acidity of two catalysts.
固体酸是将酸性基团键合或负载于不溶性载体上的一类催化剂。
Solid acids are a series of catalysts that acidic groups were bonded or supported on unsolvable supporters.
试验结果表明,所选的分子筛可以作为催化剂的活性组分,它的使用效果与工业酸性白土相当。
The results of the experiment showed that the selected zeolites could be taken as active components of the catalyst, which effect was equal to acid clay.
结果表明,酸性和碱性催化剂由于活性中心的存在,加快了反应速度和降低了反应活化能。
The results indicate that acid and alkali catalysts can increase the tar cracking reaction speed and reduce the activation energy due to the activated center.
当采用固定床连续甲酯化反应时,适宜的催化剂为强酸性阳离子交换树脂。
When the fixed bed continuous process is used, the appropriate catalyst is strong acid cation exchange resin.
在催化精馏塔内以压制的强酸性阳离子交换树脂为催化剂填料对甲酸甲酯水解制甲酸进行了实验研究。
Hydrolysis of methyl formate to form formic acid was studied experimentally by using strong-acid cation-exchange resin as catalyst and packing in a catalytic distillation column.
主要的催化剂有季铵盐、强酸性离子交换树脂、固体超强酸等。
The main catalysts used are PTC, strong acidic ion-exchanging resin, solid super acid, etc.
研究了在酸性条件下,以酶为催化剂,羊毛双氧水低温漂白工艺及相关因素的影响。
Low temperature bleaching of wool with hydrogen peroxide using katalase as catalyst under acid condition has been studied as well as the related factors influencing it.
稀土对催化活性的促进作用证明是由于稀土可以提高催化剂的表面酸性。
The facilitation of rare earth for catalytic activity was proved to be the cause of that the rare earth could increase the surface acidity of catalysts.
考察了FH- 98催化剂对酸性溶剂精制后的FCC柴油低压加氢精制的影响。
The effect of low pressure hydrogenation refining with FH-98 catalyst on FCC diesel oil after refining by acid solvent was examined.
考察了FH- 98催化剂对酸性溶剂精制后的FCC柴油低压加氢精制的影响。
The effect of low pressure hydrogenation refining with FH-98 catalyst on FCC diesel oil after refining by acid solvent was examined.
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