公开(公告)号：US5532401A

公开(公告)日：1996-07-02

申请号：US375557

申请日：1995-01-19

申请人： Donald R. Stevenson ,  Daniel L. Clark ,  John C. Debevec ,  Charles N. Slater ,  Carroll W. Larke

发明人： Donald R. Stevenson ,  Daniel L. Clark ,  John C. Debevec ,  Charles N. Slater ,  Carroll W. Larke

IPC分类号： C07F9/145 ,  C07F9/08

CPC分类号： C07F9/145

摘要： An improved process for the preparation of tris(nonylphenyl) phosphite is described which includes the steps of combining at least a 4 weight percent excess of nonylphenol (preferably 8 weight percent excess) with PCl.sub.3 with agitation and heating sufficient to liberate HCl formed during the synthetic reaction as a by-product and removing the excess nonylphenol from the tris(nonylphenyl) phosphite by thin film distillation to reduce the residual chloride level to 90 ppm or less, an acid number of 0.1 or less and a nonylphenol content after stripping of 0.1 weight percent or less. The temperature of the reaction was from room temperature to 130.degree. C., and the temperature of the evaporator which removes the excess nonylphenol is from 100.degree. C. to 350.degree. C., preferably from 150.degree. C. to 250.degree. C., under a system vacuum of from 0.01 mm Hg to 5 mm Hg.

摘要翻译： 描述了制备三（壬基苯基）亚磷酸酯的改进方法，其包括将搅拌和加热至少4重量％过量的壬基酚（优选8重量％过量）与PCl 3组合的步骤，足以释放在合成过程中形成的HCl 作为副产物的反应，并通过薄膜蒸馏从三（壬基苯基）亚磷酸酯除去多余的壬基酚，将残留的氯化物水平降低至90ppm以下，酸值为0.1以下，脱模后的壬基酚含量为0.1重量 百分之以内。 反应温度为室温至130℃，除去过量壬基酚的蒸发器的温度为100℃至350℃，优选150℃至250℃， 在0.01mm Hg至5mm Hg的系统真空下。