| 发明名称 |
METHOD OF PREPARING PHTHALIC ACID DIETHYL ESTER |
| 摘要 |
organic chemistry, more particularly preparation of diethyl phthalate. SUBSTANCE: method comprises reacting phthalic anhydride and ethyl alcohol in film mode in the presence of solid aluminium gamma oxide catalyst impregnated with sulfuric anhydride in amount of at least 15% at 120-130 C. EFFECT: simplified process. 3 cl, 1 dwg, 1 ex, 1 tbl
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| 申请公布号 |
RU2158729(C1) |
申请公布日期 |
2000.11.10 |
| 申请号 |
RU19990109267 |
申请日期 |
1999.04.28 |
| 申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "ROS;OOO ROS |
发明人 |
MALIN A.S.;VDOVETS M.Z.;LASKIN B.M.;PARFENOV V.V.;ENIKEEV A.KH. |
| 分类号 |
C07C67/08;C07C69/80;(IPC1-7):C07C67/08 |
主分类号 |
C07C67/08 |
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