FIELD: medicine. SUBSTANCE: product: N,N-dimethylurea. Reagent 1: urea. Reagent 2: monomethylamine. Reaction conditions: pressure of 30-90 atm, temperature of 100-250 C, urea to monomethylamine molar ratio of 1:2-4. The process is carried out in homogeneous liquid phase in repulsion-type reactor with reaction time of 0.1-1 h. EFFECT: more efficient preparation process. 1 tbl
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PREPARING PERFLUOROCARBONS | 1997 |
|
RU2130007C1 |
PROCESS FOR HYDROGENATION OF ORGANIC COMPOUNDS | 1995 |
|
RU2083540C1 |
METHOD OF SYNTHESIS OF ETHANOLAMINES | 1998 |
|
RU2141475C1 |
METHOD OF PREPARING TETRAFLUOROMETHANE | 1997 |
|
RU2117652C1 |
METHOD OF SYNTHESIS OF ETHANOLAMINES | 2000 |
|
RU2167147C1 |
METHOD OF DRYING DISSOLVED OR SUSPENDED SUBSTANCES | 1995 |
|
RU2077006C1 |
METHOD OF SYNTHESIS OF 3-CHLORO-2-HYDROXYPROPYLTRIMETHYLAMMONIUM CHLORIDE | 1995 |
|
RU2111957C1 |
PROCESS FOR PREPARING N,N,N′,N′-TETRAMETHYL ETHYLENE DIAMINE | 1995 |
|
RU2083553C1 |
METHOD OF PREPARING ISOPROPYL ALCOHOL | 2000 |
|
RU2158725C1 |
METHOD OF VINYL CHLORIDE SYNTHESIS | 1991 |
|
RU2024475C1 |
Authors
Dates
1996-09-27—Published
1993-09-02—Filed