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Catalyst component used for ethylene oligomerization, preparing process and application thereof

A technology for ethylene oligomerization and catalyst, applied in the field of olefin oligomerization

Inactive Publication Date: 2005-08-10
中国石油大庆石化分公司研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although octene-1 has important applications in the chemical industry, there is currently no technology for the highly selective synthesis of octene-1 by tetramerization of ethylene

Method used

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  • Catalyst component used for ethylene oligomerization, preparing process and application thereof
  • Catalyst component used for ethylene oligomerization, preparing process and application thereof
  • Catalyst component used for ethylene oligomerization, preparing process and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of (diphenyl) phosphorus nitrogen (isopropyl) phosphorus (diphenyl) ligand (C 27 h 27 NP 2 )

[0035] (1) Preparation of N, N-diisopropyl dichlorophosphoramide

[0036] in the N 2 Add dehydrated toluene (100mL) into a fully replaced stirred 250mL reactor, add PCl 3 (21.87mL, 0.25mol), and cooled to -20°C. Diisopropylamine (70 mL, 0.5 mol) was slowly added while stirring at room temperature, stirred for 3 hours, raised to room temperature and continued to react for 2 hours, then filtered and dried to obtain 38.1 g (0.19 mol, 74%) of the product.

[0037] (2) Preparation of phenylmagnesium bromide lattice reagent

[0038] in the N 2 Add dehydrated THF (100 mL) and magnesium powder (9.11 g, 0.375 mol) into a fully replaced stirred 250 mL reactor, cool down in an ice bath and slowly add bromobenzene (11.775 g, 0.075 mol) dropwise. After 2 hours, heat to reflux and continue the reaction for 2 hours to obtain the lattice reagent.

[0039] (3) Preparati...

Embodiment 2

[0048] With embodiment 1. R 5 The group is cyclohexyl. Obtain 18.3g of oligomerization product, catalyst activity is 1.14×10 6 g oligomer / mol Cr.h. The distribution of the oligomerization products is shown in Table 1.

Embodiment 3

[0050] With embodiment 1. The difference is that R 5 The group is fluorenyl. Obtain 16.6g of oligomerization product, catalyst activity is 1.03×10 6 g oligomer / mol Cr.h. The distribution of the oligomerization products is shown in Table 1.

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Abstract

A catalyst for the oligomerization of ethene and its preparing process are disclosed. Its advantages are high catalytic activity, long service life and low cost.

Description

technical field [0001] The invention relates to a catalyst component for olefin oligomerization, especially olefin tetramerization, a preparation method and application thereof. technical background [0002] As we all know, linear α-olefins such as octene-1 and hexene-1 are important chemical products and intermediates, and are widely used in polyethylene comonomers, plasticizer alcohols, flavors and fragrances, synthetic lubricants and oil additives, etc. field. The use of octene-1 and hexene-1 as comonomers can significantly improve the density of polyethylene and improve its mechanical properties such as tear resistance and tensile strength. When used as a plasticizer alcohol, it can improve the low-temperature flexibility, processability and outdoor weather resistance of polyethylene products, especially for the manufacture of cables and wires, auto parts or decorative parts. [0003] Although octene-1 has important applications in the chemical industry, there is curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/18B01J31/24C07C1/04C07C2/32
CPCY02P20/52
Inventor 张宝军姜涛王斯晗宁英男曲家波匡洞庭陈洪侠孙淑坤邢立华孙永成韩云光李玉龙袁宗胜陈谦韩雪梅黄付玲刘龙杜海曾群英谢明和李建忠王刚
Owner 中国石油大庆石化分公司研究院
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