Patent application number | Description | Published |
20130018214 | CATALYST COMPOSITION FOR OLIGOMERIZATION OF ETHYLENE AND PROCESSES OF OLIGOMERIZATIONAANM Zheng; MingfangAACI BeijingAACO CNAAGP Zheng; Mingfang Beijing CNAANM Li; WeizhenAACI BeijingAACO CNAAGP Li; Weizhen Beijing CNAANM Wang; HuaijieAACI BeijingAACO CNAAGP Wang; Huaijie Beijing CNAANM Liu; JunAACI BeijingAACO CNAAGP Liu; Jun Beijing CNAANM Zhang; HaiyingAACI BeijingAACO CNAAGP Zhang; Haiying Beijing CNAANM Zhou; YuAACI BeijingAACO CNAAGP Zhou; Yu Beijing CNAANM Li; TonglinAACI BeijingAACO CNAAGP Li; Tonglin Beijing CNAANM Zhao; LanAACI BeijingAACO CNAAGP Zhao; Lan Beijing CNAANM Wang; JilongAACI BeijingAACO CNAAGP Wang; Jilong Beijing CNAANM Wu; HongfeiAACI BeijingAACO CNAAGP Wu; Hongfei Beijing CNAANM Piao; YulingAACI BeijingAACO CNAAGP Piao; Yuling Beijing CNAANM Sui; JunlongAACI BeijingAACO CNAAGP Sui; Junlong Beijing CN - The present invention provides a catalyst composition for the ethylene oligomerization, which comprises 2-imino-1,10-phenanthroline coordinated iron (II), cobalt (II) or nickel (II) chloride as main catalyst and triethylaluminum as cocatalyst. The present invention also provides a process for oligomerization of ethylene is provided, wherein a catalyst composition comprising 2-imino-1,10-phenanthroline coordinated iron (II), cobalt (II) or nickel (II) chloride as main catalyst and triethylaluminum as cocatalyst is used, and the molar ratio of aluminum in the cocatalyst to central metal in the main catalyst ranges from 30 to less than 200. According to the present invention, another process for oligomerization of ethylene is also provided, wherein a catalyst composition comprising 2-imino-1,10-phenanthroline coordinated iron (II), cobalt (II) or nickel (II) chloride as main catalyst and triethylaluminum as cocatalyst is used, and the temperature of ethylene oligomerization ranges from −10 to 19° C. According to the present invention, the price of cocatalyst i.e. triethylaluminum, is low, just a fraction of that of methylaluminoxane, the amount of cocatalyst is therefore significantly reduced, with the catalytic activity is still acceptable, thus the cost of ethylene oligomerization is significantly reduced. In view of both the catalytic activity and the cost, the present invention is highly applicable in industry. | 01-17-2013 |
20130267708 | N ORTHO ACYL SUBSTITUTED NITROGEN-CONTAINING HETEROCYCLIC COMPOUND AND PROCESS FOR PREPARING AMINAL IRON (II) COMPLEXES THEREOF - Provided are a process for preparing an N ortho acyl substituted nitrogen-containing heterocyclic compound and an aminal iron (II) complex thereof, and the use of the complexes obtained by the process in an olefin oligomerization catalyst. The N ortho acyl substituted nitrogen-containing heterocyclic compound in the present invention is for example 2-acyl-1,10-phenanthroline or 2,6-diacetyl pyridine as shown in formula b, and the N ortho acyl substituted nitrogen-containing heterocyclic compound in the present invention is produced by a reaction of a precursor thereof in a substituted or unsubstituted nitrobenzene. Preferably the precursor shown in formula I in the present invention is produced by 1,10-phenanthroline reacting with trialkyl aluminum, or a halogenoalkyl aluminum R | 10-10-2013 |
20140316087 | CATALYST COMPOSITION AND PROCESS FOR ETHYLENE OLIGOMERIZATION - The present disclosure provides a catalyst composition for ethylene oligomerization including an imino ferrous complex shown in Formula (I) as the main catalyst, an aluminum-containing cocatalyst, water, and an organic solvent: | 10-23-2014 |