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Post-ether carbon-four polymerized catalyst as well as preparation method and application thereof

A post-ether C4 catalyst technology, which is applied in the field of post-ether C4 superposition catalysts and its preparation, can solve the problems of resin catalysts not being resistant to high temperature, easy falling off of sulfonic acid groups, poor catalytic activity, etc., and achieve good stability , high catalytic activity, and the effect of improving stability

Active Publication Date: 2014-03-26
NANTONG FINC PHARMA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to overcome the defects such as the sulfonic acid group of the traditional styrene-based cation exchange resin is easy to fall off, the resin catalyst is not resistant to high temperature, the selectivity is not good, and the catalytic activity is poor.

Method used

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  • Post-ether carbon-four polymerized catalyst as well as preparation method and application thereof
  • Post-ether carbon-four polymerized catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1). Suspension polymerization:

[0030] 1.1) Preparation of water phase:

[0031] In parts by weight, add 100 parts of water, 0.5 part of polyvinyl alcohol, and 2 parts of inorganic dispersant in the reaction kettle, and stir evenly;

[0032] 1.2) Preparation of oil phase:

[0033] In parts by weight, in 100 parts of styrene and 10 parts of divinylbenzene monomers, vinylidene fluoride, which accounts for 3% of the total monomers, and 2-vinylpyridine, which accounts for 1% of the total monomers, are added. Participate in the polymerization, add 2 parts of benzoyl peroxide, 35 parts of liquid wax, and stir evenly;

[0034] 1.3) Suspension polymerization:

[0035] The oil phase solution prepared in step 1.2) was added to the reaction kettle containing the prepared water phase in step 1.1), stirred, and then reacted at 70°C for 16 hours. The water is clear, and the porogen is extracted clean after drying.

[0036] 2). Sulfonation reaction:

[0037] Add the polymerized...

Embodiment 2

[0039] In step 1.2), add vinylidene fluoride that accounts for 1% of the total monomer content, other steps are exactly the same as in Example 1, and the sample number is M02.

Embodiment 3

[0041] In step 1.2), add vinylidene fluoride that accounts for 5% of the total monomer content, other steps are exactly the same as in Example 1, and the sample number is M03.

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Abstract

The invention provides a post-ether carbon-four polymerized catalyst which has a structure represented by a formula (I), wherein n is an integer ranged from 1-3,000. The catalyst is prepared by adding a monomer 2-vinylpyridine and vinylidene fluoride in a syrene cation exchange resin polymerization process for polymerization and then performing sulfonation. The catalyst disclosed by the invention is high in stability, and a liquid product is high in yield; the catalyst can keep extremely high catalysis activity due to long-time running. The invention also provides a preparation method for the catalyst and application of the catalyst in post-ether carbon-four olefin polymerized production of high-octane petrol or isobutene dimerization production of isooctane.

Description

technical field [0001] The invention relates to a catalyst and a preparation method thereof, in particular to a post-ether carbon tetra stacking catalyst and a preparation method thereof. technical background [0002] Zhang Xiangjian introduced a combined technology of pre-reversal and catalytic distillation for the superimposed utilization of mixed carbon tetraolefins in the document "Research on the Superimposed Utilization Technology of Mixed Ctetraolefins". More than 95% of the isobutene in the carbon tetraolefins are superimposed to form diisobutene and isooctene, and some n-butenes also participate in dimerization or copolymerization. The superimposed product (mainly diisobutene) can be hydrogenated and saturated as an excellent blending component of gasoline, and diisobutene can also be separated as an important fine chemical raw material. However, the reaction temperature can only be reacted at 90 °C, and the long-term stable operation of the resin is limited. [0...

Claims

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Application Information

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IPC IPC(8): B01J31/10C08F212/08C08F212/36C08F214/22C08F226/06C08F2/20C08F8/36C10G50/00C07C11/02C07C2/28
Inventor 张玲
Owner NANTONG FINC PHARMA CHEM
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