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Catalyst for synthesizing polyether amine and preparation method of catalyst

A catalyst and polyetheramine technology are applied in the field of catalyst for synthesizing polyetheramine and its preparation, which can solve the problems of reactor material and operation safety risks, environmental hidden dangers, high reaction pressure, etc., so as to avoid metal loss and be environmentally friendly. The effect of improving the property and suppressing excessive polymerization

Active Publication Date: 2019-06-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Similarly, the synthesis of the catalyst uses a strong alkali solution, which has environmental hazards; and in the process of using the catalyst, the reaction pressure is greater than 10MPa, which brings certain risks to the reactor material and operation safety

Method used

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  • Catalyst for synthesizing polyether amine and preparation method of catalyst
  • Catalyst for synthesizing polyether amine and preparation method of catalyst
  • Catalyst for synthesizing polyether amine and preparation method of catalyst

Examples

Experimental program
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Embodiment 1

[0033] Take 1mol Cu(NO 3 ) 2 ·3H 2 O, 0.2 mol of ruthenium trichloride, 0.25 mol of lanthanum nitrate hexahydrate were dissolved in 200 mol of absolute ethanol at 65° C., and stirred at 200 rpm for 30 min to obtain a metal salt solution. Take 0.5 mol of trimesic acid, dissolve in 230 mol of N,N-dimethylformamide, stir at 200 rpm for 30 min to obtain an organic ligand solution. The organic ligand solution was added to the metal salt solution, stirred at 65°C and 260rpm for 20h, and the product was filtered after cooling down, and washed with N,N-dimethylformamide and absolute ethanol at a volume ratio of 1:1. After washing, it was placed in a room temperature environment of 25° C. to dry naturally for 10 hours, and then subjected to blast drying treatment at 150° C. for 39 hours to obtain a catalyst for synthesizing polyetheramine.

Embodiment 2

[0035] In embodiment 1, metal salt A adopts silver nitrate to replace Cu(NO 3 ) 2 ·3H 2 O, other reaction conditions and material composition remain unchanged, and a catalyst for synthesizing polyetheramine is obtained.

Embodiment 3

[0037] In embodiment 1, metal salt A adopts Cu(NO 3 ) 2 2.5H 2 O instead of Cu(NO 3 ) 2 ·3H 2 O, other reaction conditions and material composition remain unchanged, and a catalyst for synthesizing polyetheramine is obtained.

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Abstract

The invention relates to a catalyst for synthesizing polyether amine and a preparation method of the catalyst. The preparation method comprises the following steps: (1) dissolving a metal salt A, a metal salt B and a metal salt C in an organic solvent, and conducting stirring to obtain a metal salt solution; (2) dissolving an organic ligand in an organic solvent, and conducting stirring to obtainan organic ligand solution; and (3) adding the organic ligand solution into the metal salt solution, conducting reacting at a certain temperature, and conducting filtering, washing and drying on the product to obtain the catalyst for synthesizing polyether amine. The catalyst disclosed by the invention is prepared by the method disclosed by the invention. The catalyst prepared by the invention hasbetter physical and chemical properties, is formed by complexing and coordinating of metal ions and ligands, avoids metal loss, is prolonged in service cycle, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a catalyst for synthesizing polyetheramine and a preparation method thereof. Background technique [0002] Polyetheramine (Polyetheramine), also known as amino-terminated polyether, is a class of polyoxyalkylene compounds whose molecular main chain is a polyether skeleton and the end is terminated by an amino group. Most polyetheramines use polyether as the reaction raw material, and through different treatment methods, the terminal hydroxyl groups of polyether polyols are converted into corresponding amino groups or amine groups. Due to the reactivity of the terminal amino or amine groups of the polyether backbone, it can interact with a variety of reactive groups, such as epoxy groups and isocyanate groups. In addition, due to the existence of ether bonds in the polyether chain, it is easily soluble in various organic substances, which greatly broadens th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C08G65/325
Inventor 赵亮方向晨吴长安黄新露
Owner CHINA PETROLEUM & CHEM CORP
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