Selective hydrogenation method for conjugated diene latex

A conjugated diene, selective technology, applied in the field of selective hydrogenation of conjugated diene latex, to achieve the effect of low temperature and pressure, high catalytic activity, and high hydrogenation efficiency
CN110862467AActive Publication Date: 2020-03-06QINGDAO UNIV OF SCI & TECH +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO UNIV OF SCI & TECH
Publication Date
2020-03-06

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Abstract

The invention provides a selective hydrogenation method for conjugated diene latex. The method comprises the step of subjecting the conjugated diene latex to a hydrogenation reaction with a compound catalyst of metal of a family VIII represented by a formula (I) shown in the description, thereby obtaining a hydrogenated polymer. According to the method, latex hydrogenation of the conjugated dienelatex is catalyzed by employing the compound catalyst of the metal of the family VIII represented by the formula (I); during the use of the catalyst, no cocatalyst and no organic solvent are employed,and no substance except for the catalyst is employed; compared with the prior art, the method has the advantages that the catalyst has high hydrogenation efficiency to NBR latex, and the consumptionof the catalyst is low; and hydrogenation conditions of the catalyst are not harsh, the temperature and pressure are not high, the catalyst has high catalyzing activity to the latex under the condition of moderate temperature and pressure, and thus, realization of rapid industrialization is facilitated.
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Description

technical field

[0001] The invention relates to the technical field of catalysts, in particular to a method for selectively hydrogenating conjugated diene latex. Background technique

[0002] The research and development of hydrogenated diene-based rubber products mainly refers to obtaining rubber products with required properties through formula design and subsequent processing methods according to the application environment of rubber parts. At present, whether in the laboratory or in industrial production, there are mainly three ways to prepare hydrogenated diene-based rubber. Hydrogenated parent diene-based unsaturated polymers, such as nitrile rubber prepared by polymerization of acrylonitrile and butadiene (also known as is NBR), is well known, taking NBR as an example as follows.

[0003] (1) Acrylonitrile-ethylene copolymerization method. In the ethylene-acrylonitrile copolymerization reaction, since there is a large difference in the reactivity ratio of acrylonitr...

Claims

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