Preparation method of high efficient rare-earth paint drier

A drier and rare earth technology, applied in the field of preparation of high-efficiency rare earth element paint drier, can solve the problems of environmental pollution, expensive cobalt soap, poisonous lead soap, etc.

Inactive Publication Date: 2010-01-27
甘肃稀土新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many shortcomings in the traditional drier system, mainly reflected in the pollution of the environment caused by the toxicity of l...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Add 15L of 200# solvent oil to 5L of 6.0mol / L isooctanoic acid, mix under stirring for 10 minutes, add 6.0L of prepared sodium hydroxide solution with a concentration of 4.0mol / L to carry out saponification reaction, and the time is 30 minutes After saponification, add 10L of lanthanum and cerium solution to the solution for extraction reaction, the reaction time is 40 minutes, then add 1.2L of drying aid to the solution, and perform extraction reaction for 60 minutes, then transfer the solution into a separatory funnel Stand in the medium for 4 hours to separate the layers, and the separated organic phase is the product of isooctanoic acid rare earth drier. Its metal content is 6.18%, clear and transparent oily liquid.

Embodiment 2

[0015] Add 30L of 200# solvent oil to 10L of 6.0mol / L isooctanoic acid, stir and mix for 10 minutes, then add 8.0L of prepared sodium hydroxide solution with a concentration of 6.0mol / L to carry out saponification reaction for 30 minutes After saponification, add 20L of lanthanum and cerium solution to the solution for extraction reaction, the reaction time is 40 minutes, then add 1.52L of drying aid to the solution for extraction reaction, time is 40 minutes, then transfer the solution to a separatory funnel for static Set for 6 hours to separate the layers, and the separated organic phase is the product of isooctanoic acid rare earth drier. Its metal content is 6.5%, clear and transparent oily liquid.

Embodiment 3

[0017] Add 90L 200# solvent oil to 30L concentration of 6.0mol / L isooctanoic acid, stir and mix for 10 minutes, add 24L of sodium hydroxide solution with a concentration of 6.0mol / L to carry out saponification reaction, the time is 30 minutes, saponification After the end, add 20L of lanthanum and cerium solution to the solution for the extraction reaction, the reaction time is 60 minutes, then add 7.36L of drying aid to the solution for the extraction reaction, the time is 60 minutes, then transfer the solution to the separatory funnel and let it stand for 5 minutes. After hours of stratification, the separated organic phase is the product of isooctanoic acid rare earth drier. Its metal content is 6.20%, clear and transparent oily liquid.

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Abstract

The invention discloses a preparation method of efficient rare-earth paint drier, taking isooctanoic acid, sodium hydroxide, lanthanum cerium solution, 200# solvent oil, water and corresponding auxiliary agent as main raw materials to prepare the efficient rare-earth paint drier, controlling the concentration of organic acid, the concentration and saponification rate and saponification time of the saponification agent, the extraction time and the addition quantity of auxiliary agent to ensure that the drier can reach set metal content and optimized drying performance. The results show that all technical indexes of the rare-earth drier prepared by the method can reach the national standard, satisfy application requirements of various paints, and overcome the shortage that the sample plate of the rare-earth drier in white alkyd ready mixed paint gets dark. The content of metal of the rare-earth paint drier prepared by the method is 4% to 10%, and the appearance is clean and transparent, no precipitate is generated.

Description

technical field [0001] The invention belongs to the field of rare earth product preparation, in particular to a preparation method of a high-efficiency rare earth element paint drier. Background technique [0002] Traditional driers are mainly naphthenic acid Co, Mn, Pb, Zn, Ca and more than a dozen metal soaps, among which cobalt soap and iron soap are the main driers, and other metal soaps are auxiliary driers. When the auxiliary drier is used alone, the drying effect is weak, and it must be used in conjunction with the main drier. However, there are many shortcomings in the traditional drier system, mainly reflected in the pollution of the environment caused by the toxicity of lead soap, the deep color of manganese soap, which is not suitable for light-colored paints, the high price of cobalt soap and the shortage of cobalt resources. As early as the 1930s, there were reports abroad about rare earth drier using cerium. In the early 1970s, the Changchun Institute of Appl...

Claims

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Application Information

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IPC IPC(8): C09F9/00
Inventor 杨文浩张尚虎李月红方中心于化琴
Owner 甘肃稀土新材料股份有限公司
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