Butadiene product and preparation method thereof

A technology of butadiene and vinyl acetylene is applied in the field of butadiene products and their preparation, which can solve the problems such as the preparation method of butadiene needs to be improved, and achieve the effect of reducing production cost and simplifying the preparation process.

Active Publication Date: 2013-09-18
ANHUI ANQING SHUGUANG CHEM GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current butadiene preparation method still needs to be improved

Method used

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  • Butadiene product and preparation method thereof
  • Butadiene product and preparation method thereof
  • Butadiene product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 4 g of Pd / Al with a loading of 0.1% 2 o 3 The catalyst was loaded into a fixed-bed microreactor, and the temperature of the reactor was maintained at 50° C., wherein the upper and lower layers of the catalyst were lined with quartz sand. Then, the reagent with electron-donating ability—CO gas and vinyl acetylene are mixed at a volume ratio of 0.01:1, and then passed into the reactor under normal pressure conditions, so that vinyl acetylene can undergo hydrogenation reaction to produce butanediene alkene. Wherein, the vinyl acetylene is provided in the form of a mixture of vinyl acetylene and the second gas, and the composition of the mixture is: 30 vol % vinyl acetylene, 30 vol % hydrogen and 40 vol % nitrogen. The space velocity of vinyl acetylene is 100ml·g -1 h -1 .

Embodiment 2

[0022] According to the method of Example 1, butadiene was prepared. Wherein, the difference from Example 1 is that the volume ratio of CO gas to vinyl acetylene is 0.02:1.

Embodiment 3

[0024] According to the method of Example 1, butadiene was prepared. Wherein, the difference from Example 1 is that the volume ratio of CO gas to vinyl acetylene is 0.05:1.

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Abstract

The invention relates to a butadiene product and a preparation method thereof. The method comprises the following step of: subjecting vinylacetylene to hydrogenation reaction by using a catalyst, wherein in the reaction process, reagents with electron-donating capacity are introduced into a reaction system. Butadiene can be effectively prepared by utilizing the method.

Description

technical field [0001] The present invention relates to a butadiene product and a method for its preparation. Background technique [0002] Butadiene is an important petrochemical basic organic raw material and high polymer monomer. Its position in petrochemical olefin raw materials is second only to ethylene and propylene, and it has a wide range of uses. It can not only be used to produce synthetic butadiene rubber (BR), styrene-butadiene rubber (SBR), nitrile rubber, styrene-butadiene-styrene elastomer (SBS), acrylonitrile-butadiene-styrene ( ABS) resin and other rubber and resin products can also be used to produce organic chemical products such as adiponitrile, 1,4-butanediol, anthraquinone, sulfolane, tetrahydrophthalic anhydride, higher alcohols and macrocyclic musk. At present, butadiene is derived from petroleum C 4 Fraction extraction. Due to the increasingly scarce oil resources in our country, the supply of butadiene is at risk. Therefore, it is of great sign...

Claims

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Application Information

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IPC IPC(8): C07C11/167C07C5/09B01J23/44
Inventor 韩明汉刘建国丁佐纯汪展文
Owner ANHUI ANQING SHUGUANG CHEM GRP
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