| 发明名称 |
METHOD FOR PRODUCTION OF 4,4'-DIOXYDIPHENYL METHANE |
| 摘要 |
FIELD: production of phenol derivatives. SUBSTANCE: 4,4'- dihydroxydiphenylmethane is prepared by condensation of phenol with formaldehyde in sulfuric acid medium by way of partially loading reactants and withdrawing product formed as phenol extract followed by isolation of product using conventional procedures. EFFECT: improved method. |
| 申请公布号 |
RU2072347(C1) |
申请公布日期 |
1997.01.27 |
| 申请号 |
RU19940037212 |
申请日期 |
1994.10.04 |
| 申请人 |
AKTSIONERNOE OBSHCHESTVO "VSEROSSIJSKIJ NAUCHNO-ISSLEDOVATELSKIJ INSTITUT ORGANICHESKOGO SINTEZA" |
发明人 |
MESHCHERYAKOV SPARTAK T;MINAEV VLADIMIR P;DAROVSKIKH INNA F;IVOLGINA ELENA V |
| 分类号 |
C07C39/16;B01D11/04;C07C37/20 |
主分类号 |
C07C39/16 |
| 代理机构 |
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