Supported polyethylene catalyst ingredient and preparation method thereof, and supported polyethylene catalyst and application thereof

A catalyst and polyethylene technology, applied in the field of supported polyethylene catalysts, can solve the problems of low catalytic efficiency and achieve high catalytic efficiency, narrow distribution, and large pore volume

Active Publication Date: 2016-02-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide a new supported polyethylene catalyst component and its preparation method in order to overcome the low catalytic efficiency of the supported catalyst made of mesoporous molecular sieve material in the prior art in the process of ethylene polymerization

Method used

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  • Supported polyethylene catalyst ingredient and preparation method thereof, and supported polyethylene catalyst and application thereof
  • Supported polyethylene catalyst ingredient and preparation method thereof, and supported polyethylene catalyst and application thereof
  • Supported polyethylene catalyst ingredient and preparation method thereof, and supported polyethylene catalyst and application thereof

Examples

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preparation example Construction

[0057] In step (1), "providing a mesoporous molecular sieve material with a three-dimensional cubic pore structure" can be directly weighed or selected a product of a mesoporous molecular sieve material with a three-dimensional cubic pore structure, or can be prepared with a three-dimensional cubic pore structure. Mesoporous molecular sieve materials. The preparation method of the mesoporous molecular sieve material with a three-dimensional cubic channel structure can be implemented according to a conventional method, for example, the preparation method can include: preparing a filter cake of a mesoporous molecular sieve material with a three-dimensional cubic channel structure according to the above method, and then The obtained filter cake is dried, and the templating agent in the product obtained after drying is removed. The conditions for removing the template agent may include: a temperature of 300-600° C. and a time of 10-80 hours.

[0058] According to the present inve...

Embodiment 1

[0082] This example is used to illustrate the supported polyethylene catalyst component of the present invention and its preparation method.

[0083] (1) Preparation of spherical composite carrier

[0084] Dissolve 6 g (0.001 mol) of tri-block copolymer surfactant P123 in 10 mL of hydrochloric acid aqueous solution with a pH value of 4 and 220 mL of deionized aqueous solution, stir at 15 °C for 4 h until P123 dissolves to form a transparent solution, and then add to the Add 6g (0.08mol) of n-butanol to the transparent solution and stir for 1h, then place it in a water bath at 15°C, slowly add 12.9g (0.062mol) of tetraethyl orthosilicate into the solution, and keep the temperature at Stirring at about 15°C and pH value of 4.5 for 24h, then hydrothermally treating at 100°C for 24h, then filtering and washing with deionized water for 4 times, and then suction filtration to obtain a filter material of mesoporous molecular sieve material with three-dimensional cubic channels. Pie ...

Embodiment 2

[0104] This example is used to illustrate the supported catalyst of the present invention and its preparation method.

[0105] (1) Preparation of spherical composite carrier

[0106] Dissolve 6 g (0.001 mol) of triblock copolymer surfactant P123 in 10 mL of hydrochloric acid aqueous solution with a pH value of 5 and 220 ml of deionized aqueous solution, stir at 15°C for 4 h until P123 dissolves and form a transparent solution, and then add to the Add 4.5g (0.06mol) n-butanol to the transparent solution and stir for 1h, then place it in a water bath at 60°C, slowly add 10.4g (0.05mol) tetraethyl orthosilicate to the solution, and keep the temperature Stirring at about 60°C and pH value of 5.5 for 48h, then hydrothermally treating at 80°C for 20h, then filtering and washing with deionized water for 4 times, and then suction filtration to obtain a mesoporous molecular sieve material with three-dimensional cubic channels Filter cake A2.

[0107] Concentration is that the water g...

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Abstract

The invention discloses a supported polyethylene catalyst ingredient and a preparation method thereof, and a supported polyethylene catalyst and an application thereof. The supported polyethylene catalyst ingredient comprises a spherical composite carrier, and magnesium salt and titanium salt supported on the spherical composite carrier, wherein, the spherical composite carrier contains a molecular sieve material having a three-dimensional cubic tunnel structure and silica gel, an average particle size of the spherical composite carrier is 10-50 micrometers, a specific surface area is 200-600 square meter/g, a pore volume is 0.5-2 milliliters/g, apertures present doublet distribution, doublet can be respectively corresponded to a first most probable aperture and a second most probable aperture, the first most probable aperture is 4-8 nanometers, and the second most probable aperture is 20-30 nanometers. The provided supported polyethylene catalyst has high catalysis efficiency during an ethene catalysis/polymerization process.

Description

technical field [0001] The present invention relates to a supported polyethylene catalyst component, a preparation method of the supported polyethylene catalyst component, a supported polyethylene catalyst component prepared by the method, a supported polyethylene catalyst comprising the catalyst component, And the application of the catalyst in ethylene polymerization. Background technique [0002] Mesoporous molecular sieve materials have the advantages of ordered pores, adjustable pore size, large specific surface area and pore volume, and are good catalysts and carrier materials. In recent years, heterogeneous catalysts such as solid acids and heteropolyacids prepared by using mesoporous molecular sieve materials as templates not only have high catalytic activity for ethylene polymerization, but also have fewer side reactions and simpler post-treatment. [0003] The development and application of polyethylene catalysts is another major breakthrough in the field of olefi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/02C08F4/02C08F4/646
Inventor 亢宇张明森王洪涛
Owner CHINA PETROLEUM & CHEM CORP
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