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A complex type platinum catalyst for the production of epoxy-terminated silicone oil, its preparation method and application

A technology of terminal epoxy silicone oil and platinum catalyst, which is applied in the direction of organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of cost reduction, catalyst consumption reduction, product color poor degree etc.

Active Publication Date: 2022-02-08
JIANGXI BLUESTAR XINGHUO SILICONE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned shortcomings in the prior art that the catalytic activity of the platinum catalyst for the production of epoxy-terminated silicone oil needs to be further improved, and the product chroma is not good, the purpose of the present invention is to provide a complexed platinum catalyst produced by epoxy-terminated silicone oil. Catalyst, which has high catalytic activity, can meet the production requirements of end-end epoxy silicone oil at an extremely low concentration of less than 2ppm. The amount of catalyst is reduced, which reduces the cost, which in turn makes the color of the end-end epoxy silicone oil even lower

Method used

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  • A complex type platinum catalyst for the production of epoxy-terminated silicone oil, its preparation method and application
  • A complex type platinum catalyst for the production of epoxy-terminated silicone oil, its preparation method and application
  • A complex type platinum catalyst for the production of epoxy-terminated silicone oil, its preparation method and application

Examples

Experimental program
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Effect test

preparation example 1

[0030] 2.00g PtCl 2 Add in 10.13g absolute ethanol, then add 2.56g sodium bicarbonate, 18.73g tetramethyl divinyl disiloxane and 2.32g N, N'-bis(diphenylphosphinomethyl)piperazine, in React at 60°C for 3-6 hours until the color of sodium bicarbonate changes to light yellow. After filtering the sodium bicarbonate, remove the solvent at a vacuum of -0.08MPa to prepare a complex platinum catalyst. The platinum gauge yield was 95.3%.

preparation example 2

[0032] 2.00 g of PtCl 2Add 14.23g of tetrahydrofuran, then add 2.56g of sodium bicarbonate, 18.73g of acetylacetone and 2.32g of N,N'-bis(diphenylphosphinomethyl)piperazine, and react at 60°C for 3-6 hours until carbonic acid Sodium bicarbonate was filtered until the color of sodium hydrogen changed to light yellow, and then the solvent was removed under a vacuum of -0.06 MPa to prepare a complex platinum catalyst with a yield of 94.7% based on platinum.

preparation example 3

[0034] 2.00 g of PtCl 2 Add 14.23g of tetrahydrofuran, then add 2.56g of sodium bicarbonate, 18.73g of ethyl acetoacetate and 2.32g of N,N'-bis(diphenylphosphinomethyl)piperazine, and react at 50°C for 3-6 hours, Until the color of the sodium bicarbonate turns pale yellow, the sodium bicarbonate is filtered, and then the solvent is removed under a vacuum of -0.07 MPa to prepare a complex platinum catalyst with a yield of 95.2% based on platinum.

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Abstract

The invention discloses a complexed platinum catalyst for the production of epoxy-terminated silicone oil and its preparation method and application. The complexed platinum catalyst is a compound containing platinum (II) and a first ligand and a second ligand. The organic ligand obtained by the complexation reaction-platinum complex, the first ligand is at least one of tetramethyldivinyldisiloxane, acetylacetone or ethyl acetoacetate, the second ligand is N,N'-bis(diphenylphosphino)piperazine or N,N'-bis(diphenylphosphinomethyl)piperazine. The invention provides a complex platinum catalyst for the production of epoxy-terminated silicone oil, which can obtain a high yield at an extremely low dosage, and at the same time, the product has a low chroma, which can fully meet the market demand. Moreover, the complexed platinum catalyst provided by the present invention is simple to prepare, and the cost is similar to that of traditional Karstedt catalysts, but it seems that the catalytic activity is greatly improved, which can reduce the production cost of epoxy-terminated silicone oil, and is a highly competitive end-ring Complex platinum catalyst for the production of oxysilicone oil.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a complex platinum catalyst for the production of epoxy-terminated silicone oil, a preparation method and application thereof. Background technique [0002] Epoxy-modified silicone oil not only retains many excellent properties of dimethyl silicone oil, but also has new functions such as reactivity, adsorption, and softness. Because of these characteristics, epoxy silicone oil can be used in coatings, fabric softening, tackifying, resin modification, etc. and has important applications. The traditional preparation methods of epoxy-modified silicone oils include: (1), anionic or cationic emulsions are prepared by emulsion polymerization; (3) The epoxy-based coupling agent of two functional groups and octamethylcyclotetrasilane or a linear body are subjected to an equilibrium condensation reaction to obtain a product. The preparation of epoxy-modified silicone oil by addition method is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/24C08G77/38C07F15/00
CPCB01J31/2409C08G77/38C07F15/0086B01J2531/828
Inventor 廖桂根施微微
Owner JIANGXI BLUESTAR XINGHUO SILICONE CO LTD