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A kind of catalyst composition and application

A composition and catalyst technology, applied in the direction of hydrocarbons, hydrocarbons, physical/chemical process catalysts, etc., can solve problems affecting catalysts, product quality, aromatics residues, etc., and achieve high oligomerization activity and strong applicability , running smoothly

Active Publication Date: 2021-12-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, MAO is very difficult to dissolve in alkane solvents, so commercially available MAO is generally a solution of aromatics such as toluene, resulting in aromatics remaining in the reaction product, affecting the activity of the catalyst and seriously affecting product quality

Method used

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  • A kind of catalyst composition and application
  • A kind of catalyst composition and application
  • A kind of catalyst composition and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Under the protection of nitrogen, slowly add 7 mmol of water dropwise to 10 mmol of triisobutylaluminum (1M toluene solution) in an ice bath, stir and react for 0.5 hours, then raise the temperature and reflux for 1 hour, then lower it to room temperature for later use; take 10 mmol of methyl aluminum oxide Alkane (1M toluene solution) was added to the above solution, then heated to reflux for 1 hour, and then lowered to room temperature; 2 mmol of water was slowly added to the above mixed solution in an ice bath, and after stirring for 0.5 hours, heated to reflux for 1 hour, and then Cool down to room temperature, remove the toluene solvent under reduced pressure, then add methylcyclohexane solvent, the total volume of the mixed solution is 20mL, and obtain cocatalyst A (1M, methylcyclohexane solution).

[0049] Product analysis: take the quantitative cocatalyst A, slowly add excess water to decompose it, the aluminum content of the liquid phase component is 3.4wt% by I...

Embodiment 2

[0051] Under the protection of nitrogen, slowly add 5 mmol of water dropwise to 10 mmol of triisobutylaluminum (1M toluene solution) in an ice bath, stir and react for 0.5 hours, then raise the temperature and reflux for 1 hour, then lower it to room temperature for later use; take 10 mmol of methyl aluminum oxide Alkane (1M toluene solution) was added to the above solution, then heated to reflux for 1 hour, and then lowered to room temperature; 2 mmol of water was slowly added to the above mixed solution in an ice bath, and after stirring for 0.5 hours, heated to reflux for 1 hour, and then Cool down to room temperature, remove the toluene solvent under reduced pressure, then add methylcyclohexane solvent, the total volume of the mixed solution is 20mL, and obtain cocatalyst B (1M, methylcyclohexane solution).

[0052] Product analysis: get quantitative (with embodiment 1) cocatalyst B, slowly add excessive water and make it decompose, liquid phase component is 3.4wt% with ICP...

Embodiment 3

[0054] Under the protection of nitrogen, slowly add 10 mmol of water dropwise to 10 mmol of triisobutylaluminum (1M toluene solution) in an ice bath, stir and react for 0.5 hours, then raise the temperature and reflux for 1 hour, and then lower it to room temperature for later use; take 10 mmol of methyl aluminum oxide Alkane (1M toluene solution) was added to the above solution, then heated to reflux for 1 hour, and then lowered to room temperature; 2 mmol of water was slowly added to the above mixed solution in an ice bath, and after stirring for 0.5 hours, heated to reflux for 1 hour, and then Cool down to room temperature, remove the toluene solvent under reduced pressure, then add methylcyclohexane solvent, the total volume of the mixed solution is 20mL, and obtain cocatalyst C (1M, methylcyclohexane solution).

[0055] Product analysis: get quantitative (with embodiment 1) cocatalyst C, slowly add excessive water and make it decompose, liquid phase component is 3.4wt% wit...

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Abstract

The present invention relates to a kind of catalyst composition, comprises the alkane solution of ligand compound shown in formula I, transition metal compound and aluminum-containing cocatalyst; Wherein R 1 and R 2 The same or different, can be selected from alkyl, cycloalkyl, aryl and their derivatives, preferably from C 1 -C 10 Alkyl, C 3 -C 10 Cycloalkyl, phenyl and substituted phenyl; X is phosphorus and / or nitrogen. The present invention also relates to an application of the catalyst composition. The catalyst composition of the invention has high activity; at the same time, it avoids the use of aromatic hydrocarbon solvents in the polymerization reaction, and can obtain high-quality products.

Description

technical field [0001] The present invention relates to a catalyst composition for ethylene oligomerization. The invention also relates to the application of the catalyst composition in the ethylene oligomerization process. Background technique [0002] Ethylene oligomerization is one of the most important reactions in the olefin polymerization industry. Through oligomerization, cheap small molecule olefins can be transformed into products with high added value. For example, LAO C4-C8, as an important organic raw material and chemical intermediate, is mainly used in the production of high-quality polyethylene (PE). The linear low-density polyethylene (LLDPE) produced by the copolymerization of 1-hexene or 1-octene and ethylene can significantly improve the properties of PE, especially the mechanical properties, optical properties and tear strength of polyethylene. Impact strength, the product is very suitable for packaging films and agricultural covering films such as gre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22B01J31/18B01J31/14C07F5/06C07C11/107C07C11/02C07C11/08C07C2/32
Inventor 祁彦平吴红飞郑明芳栗同林王霄青刘珺
Owner CHINA PETROLEUM & CHEM CORP
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