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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 stack 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: 2015-07-01
NANTONG FINC PHARMA CHEM
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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

Examples

Experimental program
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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 parts of polyvinyl alcohol, and 2 parts of inorganic dispersants into the reactor, and stir evenly;

[0032] 1.2) Preparation of oil phase:

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

[0034] 1.3) Suspension polymerization:

[0035] Add the oil phase solution prepared in step 1.2) to the reaction kettle with the prepared water phase in step 1.1), stir, then react at 70°C for 16 hours, discharge after the reaction, and wash the obtained polymerized white balls to The water is clear, and the porogen is extracted after drying.

[0036...

Embodiment 2

[0039] In step 1.2), vinylidene fluoride accounting for 1% of the total amount of monomers is added, and the 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 accounting for 5% of the total amount of monomers, and the other steps are exactly the same as in Example 1, sample number 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 four fold catalyst and a preparation method thereof. technical background [0002] Zhang Xiangjian introduced a combination of pre-reaction and catalytic distillation technology for the superimposed utilization of mixed carbon four olefins in the document "Research on Process Technology for Superimposed Utilization of Mixed C4-Olefins". More than 95% of the isobutene in carbon tetraolefins superimposes to form diisobutene and isooctene, and part of n-butene also participates in dimerization or copolymerization. The superposition 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 stability of the resin is limited. [0003] CN1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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