报道一种在区域选择性催化剂存在下，以2氯苯酚直接氯化合成2,6二氯苯酚的方法。
A procedure for synthesizing 2, 6 dichlorophenol by chlorinating 2 chlorophenol with chlorine in the presence of the regioselective catalyst is reported.
该工艺的技术关键是催化剂的选择，故开发高活性和高选择性催化剂成为一个重要的课题。
Catalyst choice is the key technology of this process, so research and development of high active and high selective catalyst has become an important task.
该小组还正在努力寻找一种更常见的，更便宜的催化剂，以代替在验证性概念研究中使用的相对昂贵和稀有铱催化材料。
The team is also working to find a more commonplace, less-expensive material for the catalyst, to replace the relatively rare and costly iridium used in this proof-of-concept study.
七个“是的”证明了为什么过程改进是困难的，并且经常需要外部催化剂 ——拥有内嵌的步步为营地积极变更的可靠性和过程经验。
The seven "Yes's" speak to why process improvements are difficult, and often require an outside catalyst -- one with built-in credibility and process experience for bootstrapping positive change.
在20世纪60年代，赫克曾一度放置碳原子之间结合的基础性工作，而通过使用一种催化剂，或化学制剂以推动研究进程。
In the 1960s, Heck laid the groundwork for coupling between carbon atoms by using a catalyzer, or chemical to promote the process.
与进口催化剂相比，AB- 97型催化剂具有再生周期长，活性稳定性和选择性好等特点。
In comparison with imported catalysts, AB-97 catalyst has the characteristics of long regeneration period, good active stability and selectivity.
对比评价表明，自制的催化剂活性及选择性高于进口的液相醛加氢催化剂。
The results obtained from comparison tests with imported catalysts show that the catalyst has higher activity and selectivity.
此催化剂体系有良好选择性，用量少、成本低、对环境污染小。
The catalyst system have good catalytic selection, can decrease the production cost and reduce the pollution.
虽然这四个领域之间也是互相关联的，但互联性几乎是“未来汽车”所有方面的催化剂。
While each of these four areas is linked, connectivity is the great enabler for practically all aspects of the car of the future.
本文着重对改善贵金属芳烃饱和催化剂抗硫性的最新研究进行了综述。
Recent progress in improving the sulfur resistance of noble metal aromatic saturation catalysts is reviewed in this paper.
实验结果表明，改性后的催化剂选择性和稳定性提高，异丙基苯的收率增加；
The results showed that selectivity and stability of the catalyst were greatly enhanced and yield of cumene was increased after the modification.
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.
铜催化剂改良后，提高了加氢效率、选择性和使用寿命。
The hydrogenation efficiency, selectivity and life-time of copper-based catalysts have been improved after the modification of the catalysts.
催化反应的转化率和选择性以及催化剂本身的失活速率均对温度十分敏感。
Conversion and selectivity of catalytic reactions as well as the deactivation rate of the catalyst itself is very temperature - sensitive.
加入过渡金属助剂铁虽然不能提高催化剂的选择性，但可以提高催化剂的稳定性。
Although transition metal promoter iron couldn't increase the selectivity of indole, it could improve the stability of the catalyst.
本发明是关于一种选择性加氢催化剂的制备方法和用途。
The invention relates to a preparation and application of a selective hydrogenating catalyst.
本催化剂具有操作简便、无腐蚀性，催化剂易从反应混合物中分离，并能重复使用等优点。
The catalyst has the advantage of simplicity in operation, non-corrosive, easy separation from reaction mixtures and is reusable.
降低酸强度有利于提高催化剂的选择性，延长催化剂的寿命。
Decrease the acid intensity, the selectivity and life of catalyst can improve.
我们很想去掉任何可能的假象以测定催化剂固有选择性的可能。
We would like to measure the intrinsic selectivity behavior of a catalyst independent of any potential disguises.
结果表明均相催化剂对大豆油的氢化有比镍催化剂更好的活性和选择性。
The result showed that the homogeneous catalysts had higheractivity and selectivity than that of the Nickel catalyst when hydrogenating the soybean oil.
考察了载体焙烧温度、金属镍与钼的负载量对催化剂选择性加氢性能的影响。
The effect of calcination temperature, content of nickel and molybdenum on the selective hydrogenation performance of catalyst were investigated.
这一结果进一步证实了我们以前的结论：水是肽链柔性的增塑剂，运动性及天然结构的催化剂。
The results confirm our previous conclusion that water ACTS as a plasticizer for the flexibility and a catalyst for mobility and conformation of peptide chains.
今后对松香催化加氢反应的研究主要是研制具有更高活性和选择性的新型催化剂，以进一步降低温度和压力。
The future study on catalytic hydrogenation of rosin will mainly be concentrated on the preparation of new catalysts with higher activity and selectivity to further lower pressure and temperature.
该助剂对不同催化剂具有很好的适应性。
The said promotor had good adaptability with various cracking catalysts.
该研究为制备高活性、高选择性的合成吡啶催化剂提供了理论依据。
The study provides a theoretical base for preparing high activity and high selective catalyst for pyridine synthesis.
另外对新开发的高丙烯选择性催化裂解催化剂的工业应用情况进行了总结。
In addition, the commercial application of newly developed DCC catalyst with high propylene selectivity was also summarized.
催化剂的XRD分析显示两种催化剂活性组分的分散性较好。
The XRD analysis showed that the active components of the said two catalysts exhibited good dispersivity.
对催化燃烧处理有机废气的基本原理、特点及经济性，以及催化剂、动力学和工艺流程等研究进展进行综述。
The principles, characteristics and economical analysis of catalytic combustion lor organic waste gases, and also the study progress of catalyst, kinetics and technical process etc were summarized.
对催化燃烧处理有机废气的基本原理、特点及经济性，以及催化剂、动力学和工艺流程等研究进展进行综述。
The principles, characteristics and economical analysis of catalytic combustion lor organic waste gases, and also the study progress of catalyst, kinetics and technical process etc were summarized.
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