以一种碱金属羧酸盐k- 1000作为甲苯二异氰酸酯(TDI)三聚反应的催化剂合成了以TDI三聚体为主要成分的多异氰酸酯固化剂。
A polyisocyanate curing agent, which is mainly composed of toluene diisocyanate (TDI) trimer, was prepared in the presence of the base metal carboxylate K-1000.
以一种碱金属羧酸盐k- 1000作为甲苯二异氰酸酯(TDI)三聚反应的催化剂合成了以TDI三聚体为主要成分的多异氰酸酯固化剂。对合成工艺条件进行了探讨。
A polyisocyanate curing agent, which is mainly composed of toluene diisocyanate (TDI) trimer, was prepared in the presence of the base metal carboxylate K-1000. The reaction conditions were studied.
对脱砷-加氢-脱氯汽油中碱金属和碱土金属的测定结果表明，不存在催化剂的金属流失问题。
The results of determining the alkaline and alkaline earth metals in the treated gasoline showed there was no loss of metals from the catalysts.
试验证明：碱金属碳酸盐，碱金属氢氧化物和碳酸钠同四氧化三铁的复合剂，都表现出相接近的催化活性。
The test demonstrates that alkali carbonates, alkali hydroxides and a combination of sodium carbonate with ferriferrous oxide all exhibit approximate catalytic activity.
报道了乙烷在以碱金属氯化物作为助剂的碱土金属氧化物催化剂上的氧化脱氢。
The oxidative dehydrogenation of ethane to ethylene was studied over alkaline earth oxides promoted with alkaline metal chlorides.
氨基酸席夫碱和含硫席夫碱金属配合物具有较好的抗菌、抗炎等生物活性和催化活性，成为近年来研究的热点之一。
Complexes of amino acid schiff base have become the hotspot of research in recent years due to their bio-activities, such as antiviral, anticancer and antibacterial activities, catalytic-activities.
本发明催化剂以镁铝复合氧化物为载体，以镍和钴或贵金属为活性组分，以碱金属和稀土元素作为助剂。
The catalyst of the invention utilizes mgal composite oxide as a carrier, nickel and cobalt or noble metals as active constituents, and alkali metals and lanthanon as auxiliaries.
提出了一种新的微观催化机理：碱金属盐的催化作用在于催化剂能改变CC化学键的作用程度，从而加速反应的进行。
A new catalytic mechanism is proposed: the catalytic effect of a catalyst is attributed to the change of CC chemical bond by catalyst.
提出了一种新的微观催化机理：碱金属盐的催化作用在于催化剂能改变CC化学键的作用程度，从而加速反应的进行。
A new catalytic mechanism is proposed: the catalytic effect of a catalyst is attributed to the change of CC chemical bond by catalyst.
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