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Supported catalyst and application thereof in preparation of hydroxyalkyl acrylate

A technology of hydroxyalkyl acrylate and supported catalysts, which is applied in the preparation of organic compounds, catalysts for physical/chemical processes, and preparation of carboxylate esters. It can solve the problems of short catalyst life, high production costs, and difficulty in large-scale use. problem, to achieve the effect of convenient post-processing, low manufacturing cost and long service life

Active Publication Date: 2020-05-22
CHIZHOU FANGDA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cobalt series catalysts are difficult to be used on a large scale due to the limitation of raw material sources; iron-based and copper-based catalysts are subject to further research due to their short service life and high production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation of embodiment 1 catalyst 1

[0030] Mg 1kg, MgO 1kg, MgSO 4 5kg, MgCl 2 1kg of activated carbon and 8kg of activated carbon are fully mixed in the reactor, dried at 110°C for 3 hours, ground into powder with a grinder, replaced with high-purity nitrogen for 3 times, vacuumed under a vacuum pump at -60 kPa for 3 hours, and then directly loaded into the in a tubular reactor.

Embodiment 2

[0031] The preparation of embodiment 2 catalyst 2

[0032] Zn 1kg, MgO 3kg, CuSO 4 5kg, MgCl 2 After fully mixing 1kg and 15kg of activated carbon in the reactor, dry it at 110°C for 3 hours, grind it into powder with a grinder, replace it with high-purity nitrogen for 3 times, and vacuum it under a vacuum pump at -60 kPa for 3 hours. into the tubular reactor.

Embodiment 3

[0033] The preparation of embodiment 3 catalyst 3

[0034] Zn 1kg, FeO 1kg, CuSO 4 10kg, MgCl 2 1kg and 26kg of carbon fibers were fully mixed in the reactor, dried at 110°C for 3 hours, ground into powder with a grinder, replaced with high-purity nitrogen for 3 times, and evacuated under a vacuum pump of -60 kPa for 3 hours. into a tubular reactor.

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Abstract

The invention discloses a supported catalyst and application thereof in preparation of hydroxyalkyl acrylate. The catalyst is obtained by loading any elemental substance of magnesium, calcium, iron, copper, zinc or aluminum, oxide, sulfate and halide onto a carrier, wherein the weight ratio of the elemental substance of magnesium, calcium, iron, copper, zinc and aluminum, the oxide, the sulfate and the halide is 1:(1-3):(1-10):(1-5), and the weight of the carrier is 1-5 times of the total weight of the elemental substance of magnesium, calcium, iron, copper, zinc and aluminum, the oxide, the sulfate and the halide. The catalyst used in the invention has the advantages of cheap and easily available components, low manufacturing cost, simple operation process, mild conditions, convenient post-treatment, high activity, long service lifetime, and capable of being regenerated and reused. The process of utilizing the catalyst for preparing hydroxyalkyl acrylate is simple, the production process is safe, no polymerization inhibitor is needed, continuous operation can be performed, the raw material conversion rate is 96% or above, and the product purity is 99% or above.

Description

technical field [0001] The invention relates to a catalyst, specifically a supported catalyst, and the application of the supported catalyst in the preparation of hydroxyalkyl acrylate. Background technique [0002] Hydroxyalkyl acrylate is a kind of important chemical raw material. It is a colorless and transparent liquid with two functional groups of carbon-carbon double bond and hydroxyl. It is extremely active in nature and has a wide range of applications. It is mainly used in fiber processing, coatings, light-curing resins, adhesives, paper processing, and rubber industries. It is quite representative in terms of preparation process and material characteristics. Hydroxyalkyl acrylate is mainly used as a special ester of acrylic acid. There are seven synthetic routes: 1) Ring-opening reaction method, which is to pass alkylene oxide into acrylic acid, react under the action of catalyst and polymerization inhibitor, and directly generate acrylic acid hydroxyl Alkyl este...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/138B01J27/128C07C67/26C07C67/24C07C69/54
CPCB01J27/138B01J27/128C07C67/26C07C67/24C07C69/54
Inventor 陈方兰陈圣慧裴文
Owner CHIZHOU FANGDA SCI & TECH CO LTD
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