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1)  activating catalyst
活化催化剂
2)  Catalyst activation
催化剂活化
3)  active catalyst
活性催化剂
1.
Through contrast test,the influence of W powder particle size and addition of active catalyst on WC particle size is analyzed and technologic parameters of production of high-quality coarse grained WC is defined.
进行了在钨粉碳化阶段添加活性催化剂生产优质粗颗粒WC的工艺研究。
4)  catalyst deactivation
催化剂失活
1.
The recycle of catalyst and the cause of catalyst deactivation were studied.
催化剂失活的原因在于,原料中以及反应过程中产生的水对催化剂结构有破坏作用;另外,反应过程中产生的重组分副产物对催化剂的配合或包裹是造成催化剂失活的主要原因。
2.
Factors of catalyst deactivation for straight-run gasoline aromatization upgrading have been tested and studied and the result shows that nitride,water-soluble alkali in the feedstock and catalyst coking in the re- action process are the main factors.
对石脑油芳构化改质催化剂失活的因素分别进行了研究,结果表明:原料油中的氮化物、原料油含有水溶性碱类物质及反应过程中催化剂的结焦是导致石脑油芳构化改质催化剂失活的主要因素。
3.
Progress in research of catalyst deactivation in ethylbenzene dehydrogenation was reviewed.
对乙苯脱氢制苯乙烯催化剂失活的研究进展进行了综述,分析了催化剂的活性相,分别探讨了积碳、钾的流失与重新分布、Fe3+的还原、催化剂物理结构的变化和中毒等5个因素对催化剂失活的影响及其失活机理,其中,钾的流失和Fe3+的还原是造成催化剂失活的重要因素。
5)  deactivation of catalyst
催化剂失活
1.
Based on test and analysis of Chinese - made Pd/C catalyst used in terephthalic acid plants , the causes for deactivation of catalyst were discovered : block of the micro pores of catalysts by organics , cover of active component Pd by organics , sulfur intoxication , and decrease of Pd crystallites dispersion degree due to its large size.
对在工业装置上使用的国产钯碳催化剂进行了测试和分析,发现导致催化剂失活的原因是:催化剂微孔被有 机物堵塞,活性组分钯被有机物覆盖,硫中毒和钯晶粒长大而使其分散度降低。
6)  Deactivated Catalyst
失活催化剂
1.
Study on the Determination of Metal Impurities in Deactivated Catalyst;
失活催化剂中金属杂质测定方法研究
补充资料:热活化催化剂
分子式:
CAS号:

性质:是指只有通过加热,才能体现催化效用的催化剂。聚氨酯中常用的热活化催化剂为胺类延迟性催化剂,它们在室温下稳定,而在活化温度下不可逆地分解,产生叔胺催化剂以有效地催化异氰酸酯和多元醇的反应,如三亚乙基二胺双氰基醋酸酯等就属于热活化型延迟性催化剂。

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