Preparation method of high efficient rare-earth paint drier

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...

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 lead soap, the deep color of manganese soap is not suitable for light-colored paint, the high price of cobalt soap and the shortage of cobalt resources, etc.