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Process for preparing fine crystal particle of maleic anhydride and maleic anhydride composition containing such maleic anhydride particle
Process for preparing fine crystal particle of maleic anhydride and maleic anhydride composition containing such maleic anhydride particle
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机译:制备马来酸酐的细晶体颗粒的方法和含有该马来酸酐颗粒的马来酸酐组合物
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摘要
A method of preparing fine crystal particles of maleic anhydride is provided. The method contains the steps of putting a molten mass of maleic anhydride into a hermetically closed container moved at a moving rate of 1 to 30 times per minute and cooling the molten mass to room temperature over three hours or more. A maleic anhydride composition contains 0.01 to 5 wt. parts of colloidal silica relative to 100 wt. parts of maleic anhydride particles.
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