The new preparation process of tetrabromobisphenol - a with bisphenol - a, bromine and hydrogen peroxide as raw materials by a heterogeneous catalyst reaction has been introduced in this paper.
以双酚a、溴水和过氧化氢为原料，采用非均相催化反应技术合成四溴双酚a的新工艺。
Trimethylaluminum(TMA) was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.
以三乙基铝（茶）和甲基溴为原料，在铁-锑络合物催化剂上反应合成了三甲基铝（TMA）。
Combined with another catalyst, such as platinum, that can produce hydrogen gas from water, the system can duplicate the water splitting reaction that occurs during photosynthesis.
结合上其他从水中产生氢气的催化剂如铂，这个系统就能复制在光合作用中所发生的水分解反应。
Until now, most approaches relied on impractically scarce materials like iridium as a catalyst that triggers the reaction.
到目前为止，大部分方式还在依赖象铱那样不实用的稀有原料作为引发反应的催化剂。
But in that case, too, a catalyst would be needed to boost reaction rates enough to account for the dearth of acetylene.
但在那种情况下，也需要催化剂去加快足够的反应速度，以解释乙炔的缺失。
The device, reported in the journal Science, uses a standard parabolic mirror to focus the sun's rays into a reaction chamber where the cerium oxide catalyst breaks down water and carbon dioxide.
这种在《科学》杂志里所报道的装置使用一个标准的抛物柱面镜把阳光搜集进一个反应室。在这个反应室里，铈氧化物催化剂可以分解水和二氧化碳。
The reaction, which requires a catalyst, turns the methanol and water into protons and electrons (in other words, dissociated hydrogen atoms) and carbon dioxide.
这种反应，需要催化剂，将甲醇和水变成质子和电子（换句话说，就是游离的氢原子）以及二氧化碳。
On its own, titania works best as a catalyst for this reaction in ultraviolet light.
格兰姆斯说，二氧化钛本身在紫外线下就是催化这个反应的良催化剂。
Instead of getting rid of the NOx the team believe they can use it as a catalyst to help power the reaction.
该团队认为，不必把氮氧化物清除掉，而是利用它作为催化剂，促进化学反应的进程。
Effects of reaction temperature, oxygen concentration, catalyst dosage and reaction time on oxidation of benzyl alcohol were investigated.
考察了反应温度、氧浓度、催化剂用量以及反应时间对苯甲醇氧化的影响。
The paper introduces the catalyst research advances in esterification reaction of carboxylic acid.
本文介绍了羧酸酯化反应催化剂的研究进展。
The experimental results showed high catalytic activity of the catalyst, mild reaction conditions, and convenient in application.
实验结果表明该催化剂活性高，反应条件温和，方法简便。
The influence of acrylic acid and tetradecyl alcohol, amount of catalyst and inhibitor, reaction temperature, reaction time were investigated.
探讨了丙烯酸与十四醇摩尔比，催化剂和阻聚剂的用量、反应温度及反应时间对酯化反应的影响。
Prepolymer based on MDI-50 for athletic tracks was prepared, the effects of catalyst, rubber granule and DOP on reaction process and product performance were also studied.
以MDI - 50为原料，制得复合塑胶跑道施工要求的预聚体，探讨催化剂、橡胶颗粒、增塑剂等对反应过程及制品性能的影响。
The reaction conditions such as dosages of catalyst, 1, 4 dioxane and water, solvent type, reaction temperature and time, adding method were also studied.
同时还研究了催化剂用量、1,4二氧六环的用量、溶剂种类、反应温度、反应时间、水量及加水方式等对该反应的影响。
With more active catalyst, the reaction was carried out completely.
由于使用了活性较大的催化剂，反应进行地很彻底。
Methods: Orthogonal experimental design is used and the influence of temperature, catalyst, reaction time and solvent on the yield is investigated.
方法：采用正交设计法，重点考察反应温度、催化剂、反应时间及溶剂四个因素对收率的影响。
The effect of the amount of hydrogen-peroxide and catalyst, reaction time and amount of water on the carboxyl content was investigated.
考察了氧化剂用量、催化剂用量、反应时间和水用量对氧化淀粉羧基含量的影响。
Phenol oxidation and catalyst - sorbent ignition may proceed bt different reaction mechanisms.
苯酚的催化氧化和炭的催化氧化可能遵循不同的反应历程。
The proper amount of DBTL catalyst of reaction temperature were given.
确定了适宜的催化剂用量和反应温度。
Many synthesis parameters were investigated such as amount of catalyst, reaction time, molar ratio of alcohol to acid and different water carriers.
考察了催化剂用量、醇酸物质的量比、带水剂种类、反应时间等因素对收率的影响。
The Synthesising process, catalyst, reaction conditions, product separation and USES of DIPE are presented.
介绍了DIPE的生产工艺、催化剂、反应条件、产品分离及DIPE的应用情况。
The effects of organic promoter, catalyst amount, reaction temperature and time on the synthesis were investigated.
考察了有机助剂、催化剂用量、反应温度、反应时间等因素对反应的影响。
The effect of acid-alcohol ratio, acidity of catalyst, amount of catalyst, reaction time, and reaction temperature were investigated.
考察了醇酸比，催化剂酸度，催化剂用量，反应时间，反应温度对酯化产率的影响。
Poly(succinimide)(PSI) was synthesized by polycondensation of L-aspartic acid in a solvent. The effects of the catalyst, reaction time and solvent on the reaction were studied.
以L 天冬氨酸为原料，采用溶剂法合成聚琥珀酰亚胺，并研究了催化剂、反应时间和混和溶剂配比对反应的影响。
Poly(succinimide)(PSI) was synthesized by polycondensation of L-aspartic acid in a solvent. The effects of the catalyst, reaction time and solvent on the reaction were studied.
以L 天冬氨酸为原料，采用溶剂法合成聚琥珀酰亚胺，并研究了催化剂、反应时间和混和溶剂配比对反应的影响。
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