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发明公开
CN102827201A 二（2-联苯基）苯基磷酸酯阻燃剂制备方法 无效 - 撤回

二（2-联苯基）苯基磷酸酯阻燃剂制备方法
摘要：
二（2-联苯基）苯基磷酸酯阻燃剂制备方法，本发明涉及一种二（2-联苯基）苯基磷酸酯的制备方法，首先将二氯磷酸苯酯与邻苯基苯酚在路易斯酸催化剂催化下在温度160℃-200℃，酯化反应5~6小时，得到二（2-联苯基）苯基磷酸酯粗品，然后将上述粗品加入溶剂后经酸洗、碱洗和水洗，最后蒸出溶剂，得到二（2-联苯基）苯基磷酸酯产品，通过一步法制得二（2-联苯基）苯基磷酸酯，大大提高了制备效率，并有效克服了市场上单苯基磷酸酯抗光分解性、耐洗、耐磨性差的问题。
摘要（英）：

The invention relates to a method for preparing a diphenyl (2-biphenyl) phosphate fire retardant. The method includes enabling phenyl dichlorophosphate and o-phenylphenol to be in esterification reaction for 5 to 6 hours under the catalysis effect of Lewis acid catalysts at the temperature ranging from 160 DEG C to 200 DEG C to obtain a diphenyl (2-biphenyl) phosphate crude product; then adding solvent into the crude product and performing acid washing, alkaline washing and water washing; and finally steaming solvent to obtain a diphenyl (2-biphenyl) phosphate product. The diphenyl (2-biphenyl) phosphate product is prepared by a one-step method, preparation efficiency is greatly improved, and problems of poor photolysis resistance, washing resistance and abrasion resistance of single-phenyl phosphate in markets are effectively solved.

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