Environment-friendly catalyst and preparation method thereof

A catalyst and an environment-friendly technology, applied in the field of environment-friendly catalysts and their preparation, can solve the problems of amine catalysts such as carcinogenic risk, organism deformity, and environmental pollution, and achieve the effects of reducing selectivity, increasing profits, and reducing energy consumption

Pending Publication Date: 2016-08-10
赵洪枝
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  • Abstract
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Problems solved by technology

Studies have shown that amine catalysts have potential carcinogenic risks; organotin, lead, and mercury heavy metal catalysts will not only cause environmental pollution, but also cause deformity and chronic poisoning of organisms, so they are not suitable for the preparation of medical pol

Method used

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Embodiment Construction

[0023] The technical solutions of the present invention will be further specifically described below through examples.

[0024] Concrete implementation steps of the present invention are:

[0025] A. Mix isooctanoic acid, bismuth oxide and dearomatized hydrocarbon D60 solvent oil in a ratio of 3:1:2 to react, the reaction temperature is 100°C~160°C (the optimum reaction temperature is 120°C~140°C), and the reaction time is After 5 hours, dehydrate to 130°C after the reaction, and filter to obtain a light yellow or water-white viscous liquid product. The purpose of this filtration is to filter out the product obtained after the reaction of impurities in the bismuth oxide raw material.

[0026] B. Mix isooctanoic acid with zinc oxide and dearomatized hydrocarbon D60 solvent oil in a ratio of 4:1:5 to react, the reaction temperature is 75°C~130°C (the best reaction temperature is 85°C~115°C), and the reaction time is After 1.5 hours, dehydrate to 115°C after the reaction to obta...

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PUM

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Abstract

The invention discloses a preparation method of an environment-friendly catalyst. The method includes: reacting isocaprylic acid, bismuth oxide and solvent oil to obtain a solution, reacting isocaprylic acid, zinc oxide and solvent oil to obtain a solution, and mixing the obtained solutions to obtain a finished product. On the other hand, the invention also provides an environment-friendly catalyst, which comprises the following effective components: 20% of bismuth isocaprylate and 10% of zinc isocaprylate. The catalyst provided by the invention is environment-friendly, can completely replace lead mercury and tin catalysts that are currently abolished by legislation, has fast reaction speed when applied to polyurethane elastomers, and can significantly reduce bubbles of the product, combined use of bismuth and zinc can reach a synergistic effect, so that the formula and production can be more flexible, energy consumption is reduced, the profit can be increased, and therefore the environment-friendly catalyst provided by the invention is very suitable for application as a drier in polyurethane coating, medical polyurethane elastomer, polyurethane leather, polyurethane adhesive, polyurethane rubber, PU resin slurry, water-based paint industries and other fields.

Description

technical field [0001] The invention relates to an environment-friendly catalyst and a preparation method thereof, and relates to the field of fine chemicals. Background technique [0002] In the synthesis of polyurethane elastomers, in order to speed up the reaction and achieve rapid curing, it is often necessary to add catalysts. Commonly used catalysts include amines and organotin, organolead and organomercury catalysts. These catalysts will inevitably remain in the product. Studies have shown that amine catalysts have potential carcinogenic risks; organotin, lead, and mercury heavy metal catalysts will not only cause environmental pollution, but also cause deformity and chronic poisoning of organisms, so they are not suitable for the preparation of medical polyurethane materials and daily polyurethane materials. Material. [0003] In addition, in the production process of traditional catalysts, the reacted liquid products need to be precipitated and discharged into was...

Claims

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Application Information

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IPC IPC(8): C08G18/22C09F9/00
CPCC09F9/00C08G18/22C08G18/222C08G18/227
Inventor 赵洪枝
Owner 赵洪枝
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