SAFE, ENVIRONMENTALLY FRIENDLY AND CONTROLLABLE PROCESS FOR SYNTHESIZING DIEPOXIDE
申请人:Jiangsu Tetra New Material Technology Co., Ltd.
公开号:EP3992186A1
公开(公告)日:2022-05-04
The present disclosure relates to the field of epoxide synthesis, and particularly to a safe, environmentally friendly and controllable method for preparing cycloaliphatic diepoxides. The method comprises the steps of: mixing a diene compound, a carboxylic acid, an alkaline salt, and a solvent, and cooling; dropwise adding a hydrogen peroxide solution thereto over 1-12 h; standing for layering to obtain an underlayer of an organic phase I, washing the organic phase I with a washing liquid, and standing for layering to obtain an underlayer of an organic phase II; and purifying the organic phase II. The reaction system of the present disclosure is simple, environmentally friendly, safe and controllable, and the production cost is low, which can meet the technical and economic requirements. The obtained cycloaliphatic diepoxides have high purity, high yield, low solvent content, low chroma and low halogen content, which are suitable for large-scale industrial production.
本公开涉及环氧化物合成领域,特别是一种安全、环保和可控的环脂族二环氧化物制备方法。该方法包括以下步骤:将二烯化合物、羧酸、碱式盐和溶剂混合并冷却;在 1-12 小时内滴加过氧化氢溶液;静置分层得到底层有机相 I,用洗涤液洗涤有机相 I,静置分层得到底层有机相 II;以及纯化有机相 II。本公开的反应体系简单、环保、安全可控、生产成本低,能够满足技术经济要求。得到的环脂族二环氧化物纯度高、收率高、溶剂含量低、色度低、卤素含量低,适合大规模工业化生产。