The synthesis ofm—Cresol from o—toluic acid by air oxidation was studied in a 1 liter reactor under vigorous stirring conditions in order to eliminate film resistances.
在容积1升的反应釜中,在剧烈搅拌以消除膜阻的条件下研究了邻甲基苯甲酸空气催化氧化制间甲酚的反应。
Compared with the prior art, the utility model can eliminate or lighten the coating surface connecting film and problem of brume-shape generation, and improves the quality of the coating products.
和现有技术相比,本实用新型可以消除或减轻涂层表面结膜及产生雾状的问题,提高涂布产品的质量。
Adding proper amount of rare earth element can accelerate the formation of passive film, and eliminate the heterogeneity in the spraying layers, so the erosion resistance can be improved.
加入适量的稀土可以促进金属表面钝化膜的形成,并能减少异质相的存在,因而能有效地提高喷焊层的耐蚀性能。
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