Progress on developing of ethylene oligomerization catalysts was reviewed. According to the atomic number of the carbon chain

the utilities of α-alkenes were briefly introduced. We categorized and discussed the details according to latter transition metal catalyst and former transition metal catalyst. Ethylene Trimerization catalyst was introduced in emphasis and its polymerization mechanism was proposed. The article finally introduced preparations methodsα-alkenes have besides ethylene oligomerization catalyst method

but also have paraffin wax hot decomposition

alkane catalysis decomposes

alkane dehydrogenation and alkene two molecular polymerization and so on. The linearization degreec

the polymerization degree distributes

the separation expense of the product and the product quality prepared by ethylene oligomerization are better than that of others. In China

the main production method is paraffin wax decomposition

therefore

it has the extremely vital significance that to develop the research of the ethylene oligomerization and the property rights oligomerization catalyst in our country.