Nickel-based halloysite nanotube hydrogenation catalyst and preparation and application thereof

A technology of halloysite nanotubes and hydrogenation catalysts, applied in the direction of metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, preparation of organic compounds, etc. volume, non-renewable and other issues
CN112916013AActive Publication Date: 2021-06-08河南天宁新材料科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
河南天宁新材料科技有限公司
Publication Date
2021-06-08

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Abstract

The invention belongs to the field of cyclohexane carboxylate preparation, and particularly relates to a nickel-based halloysite nanotube hydrogenation catalyst and preparation and application thereof. According to the nickel-based halloysite nanotube hydrogenation catalyst, a halloysite nanotube serves as a carrier, an active component is loaded on the halloysite nanotube in an in-situ growth mode, and the active component is nickel or a combination of nickel and one or more of the following metal elements: Cu, W, Ce, Al, Pr, Y and B. The nickel-based halloysite nanotube hydrogenation catalyst provided by the invention has high activity and good selectivity, is suitable for hydrogenation production with naphthalene orthophthalic acid esters as raw materials, has a great cost advantage of the catalyst per unit product, and can also realize a very high raw material conversion rate after being repeatedly used for many times. Besides, according to the production process provided by the invention, the orthophthalic acid ester raw material in the final finished product is reduced to the ppm level, the refining cost of the product is greatly reduced, and the production process has a remarkable market cost advantage.
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Description

technical field

[0001] The invention belongs to the field of cyclohexane carboxylate preparation, in particular to a nickel-based halloysite nanotube hydrogenation catalyst and its preparation and application. Background technique

[0002] In recent years, scientific research has found that o-benzene ring carboxylate plasticizers harm male reproductive ability and promote female sexual precocity, especially potentially harmful to infants. In December 2018, the European Commission promulgated Regulation 2018 / 2015, Article 51 of REACH Annex XVII related to phthalates, for 4 kinds of phthalates (DEHP, DBP, DIBP and BBP) The limit is increased from less than 0.1% for each item to less than 0.1% for the sum of all items, and the product range is expanded from toys that are placed in the mouth under the age of 3 to all toys and child care products under the age of 12; and it is clearly stipulated that in July 2020 After 7 days, if the limit values ​​of 4 phthalates (DEHP, DBP, DI...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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