VERFAHREN ZUR HERSTELLUNG VON DIPHTHALOYL- PEROXID,申请号AT19760008477-传众专利搜索

VERFAHREN ZUR HERSTELLUNG VON DIPHTHALOYL- PEROXID

申请公布号：AT355555(B)

申请号：AT19760008477

申请日期：1976.11.15

申请公布日期：1980.03.10

申请人：

INTEROX CHEMICALS LIMITED

分类号：C07C409/32;C07C67/00;C07C407/00;C07C409/34;(IPC1-7):07C179/15

主分类号：C07C409/32

摘要：The present invention provides a process for producing diphthaloyl peroxide comprising the steps of reacting particulate phthalic anhydride with aqueous hydrogen peroxide in a mobile slurry or paste and thereafter separating diphthaloyl peroxide from the aqueous phase. Preferably the minimum volume of hydrogen peroxide solution is employed commensurate with obtaining a mobile slurry or paste in a mole ratio of phthalic anhydride to hydrogen peroxide of 4:3 to 1:3. Preferably the reaction is effected at a temperature of from 25 to 50.degree.C. Diphthaloyl peroxide is particularly suitable for washing/bleaching fabrics, optionally in conjection with an inorganic persalt e.g. sodium perborate, at a temperature of from 30 to 60.degree.C.