A catalyst for preparing 1-hexene by disproportionation and oligomerization of butene, its preparation method and application

A catalyst and hexene technology, applied in the direction of carbon compound catalysts, physical/chemical process catalysts, catalysts, etc., can solve the problems of complex product components, low target conversion rate, poor comprehensive benefit, etc., achieve high yield and improve selectivity , the effect of reducing production costs

Active Publication Date: 2020-11-17
SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defects of low target conversion rate, poor selectivity, complex product components, difficult separation and poor overall benefit in the process of producing hexene by disproportionation of butene in the prior art, the present invention provides a method for the preparation of hexene by disproportionation and oligomerization of butene Catalyst for 1-hexene and its preparation method, and also provides a method for preparing 1-hexene by using the catalyst for disproportionation and oligomerization of butene

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  • A catalyst for preparing 1-hexene by disproportionation and oligomerization of butene, its preparation method and application

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Effect test

Embodiment 1

[0025] A catalyst for the preparation of 1-hexene by disproportionation and oligomerization of butene, containing 5g of tungsten oxide, 3g of molybdenum oxide, 1g of nickel oxide, 3g of cobalt-tungsten compound salt, and 88g of carrier ZSM-5 molecular sieve, wherein the cobalt Tungsten compound salt is composed of cobalt L-phenylalanine and tungsten L-homomalate in a weight ratio of 1:4. The catalyst number is YCSY-01.

[0026] The preparation method of the catalyst: Soak the carrier in 1mol / L sodium hydroxide solution for 4 hours to activate it, take it out, soak it in the salt solution made of sodium metatungstate, ammonium molybdate and nickel hydroxide, and ultrasonicate it at a frequency of 100MHz Disperse for 4 hours, then take it out, bake it at 550°C for 6 hours, cool it down to room temperature naturally, soak it in the salt solution with cobalt-tungsten compound salt for 4 hours, take it out and dry it at 105°C for 6 hours.

Embodiment 2

[0028] A catalyst for the preparation of 1-hexene by disproportionation and oligomerization of butene, containing 3g of tungsten oxide, 1g of molybdenum oxide, 5g of cobalt-tungsten compound salt, and 91g of carrier ZSM-5 molecular sieve, wherein the cobalt-tungsten compound salt It is composed of cobalt L-phenylalanine and tungsten L-homomalate in a weight ratio of 1:2. The catalyst number is YCSY-02.

[0029] The preparation method of the catalyst: Soak the carrier in 1mol / L sodium hydroxide solution for 5 hours to activate it, take it out, soak it in the salt solution made of sodium metatungstate, ammonium molybdate and nickel hydroxide, and ultrasonicate it at a frequency of 300MHz Disperse for 6 hours, then take it out, bake it at 550°C for 6 hours, cool it down to room temperature naturally, soak it in the salt solution with cobalt-tungsten compound salt for 6 hours, take it out and dry it at 105°C for 8 hours.

Embodiment 3

[0031] A catalyst for the preparation of 1-hexene by disproportionation and oligomerization of butene, containing 5g of tungsten oxide, 2g of molybdenum oxide, 1g of nickel oxide, 10g of cobalt-tungsten compound salt, and 82g of carrier ZSM-5 molecular sieve, wherein the cobalt Tungsten compound salt is composed of cobalt L-phenylalanine and tungsten L-homomalate in a weight ratio of 1:4. The catalyst number is YCSY-03.

[0032] The preparation method of the catalyst: Soak the carrier in 1mol / L sodium hydroxide solution for 6h to activate it, take it out, soak it in the salt solution made of sodium metatungstate, ammonium molybdate and nickel hydroxide, and ultrasonicate it at a frequency of 500MHz Disperse for 5 hours, then take it out, bake it at 550°C for 5 hours, cool it down to room temperature naturally, soak it in the salt solution with cobalt-tungsten compound salt for 5 hours, take it out and dry it at 105°C for 12 hours.

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Abstract

The invention discloses a catalyst for preparing 1-hexene through butylene disproportionated oligomerization. The catalysts is prepared from, by weight, 0-5 parts of tungsten oxide, 0-3 parts molybdenum oxide, 0-1 part of nickelic oxide, 3-10 parts of cobalt-tungsten compounded salt and the balance carriers, wherein the cobalt-tungsten compounded salt is composed of L-phenylalanine cobalt and L-high malic acid tungsten of which the weight ratio is 1:(1-4). The invention further discloses a preparing method and application of the catalyst. The catalyst is used for a reaction of preparing 1-hexene through butylene disproportionation oligomerization, the conversion rate of butylene and the yield of the reaction product 1-hexene can be increased, and the production cost of hexene is lowered.

Description

technical field [0001] The invention belongs to the field of hexene preparation, and in particular relates to a catalyst for preparing 1-hexene by disproportionation and oligomerization of butene, a preparation method and application thereof. Background technique [0002] Hexene is an important low-carbon olefin and an important monomer for the synthesis of high value-added polyethylene. 1-Hexene is generally used as a comonomer of high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE). It has a broad market and is a key raw material for high value-added polyethylene products. The annual market gap in my country alone reaches 100,000 tons. At present, due to the limitation of the production of high-performance hexene monomer, my country needs to import about 80,000 tons of high-priced hexene from abroad for the synthesis of high-performance LLDPE. The lack of raw materials has seriously affected the production of high-performance LLDPE in my country. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/48B01J23/888C07C2/10C07C2/12C07C11/107
CPCB01J23/002B01J23/888B01J23/8885B01J29/48B01J2523/00C07C2/10C07C2/12C07C2523/888C07C2529/48B01J2523/31B01J2523/68B01J2523/69B01J2523/845B01J2523/847C07C11/107
Inventor 杨东元齐永红许磊李霁阳屈文婷皇甫慧君
Owner SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND
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