Water → Sodium Behenate
Reaction equation
[C:1]([OH:24])(=[O:23])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH3:22].O.[OH-].[Na+:27]>C(O)(C)(C)C>[C:1]([O-:24])(=[O:23])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH3:22].[Na+:27]Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 75 °C
Procedure
After mixing 87.6 kg of behenic acid (Edenor C22-85R, trade name, manufactured by Henkel Co.), 423 liters of distilled water, 49.2 liters of an aqueous solution of 5 mol/liter of NaOH, and 120 liters of tert-butanol, the reaction was carried out with stirring at 75° C. for one hour to obtain a solution of sodium behenate. Apart from this, 206.2 liters of an aqueous solution of 40.4 kg of silver nitrate (pH 4.0) was prepared and kept at 10° C. A reaction vessel containing 635 liters of distilled water and 30 liters of tert-butanol was kept at 30° C., and the total amount of the above-described sodium behenate solution and the total amount of the aqueous silver nitrate solution were added with stirring at definite flow rates over periods of 62 minutes and 10 seconds and 60 minutes respectively. In this case, the additions of the solutions were carried out such that for 7 minutes and 20 seconds after initiating the addition of the aqueous silver nitrate solution, the aqueous silver nitrate solution only was added, and thereafter, the addition of the aqueous sodium behenate solution was initiated, and for 9 minutes and 30 seconds after finishing the addition of the aqueous silver nitrate solution, the sodium behenate solution only was added. In this case, the temperature in the reaction vessel was 30° C. and the outer temperature was controlled so that the solution temperature became constant. Further, a pipe of an addition system of the sodium behenate solution was insulated with steam trace, and the opening of a valve for steam was controlled so that the solution temperature at an outlet of a tip of an addition nozzle became 75° C. Also, piping of the addition system of the aqueous silver nitrate solution was kept warm by circulating cold water through an out side of a double pipe. The adding position of the aqueous sodium behenate solution and the adding position of the aqueous silver nitrate were symmetrical disposition with the stirring axis at the center, and also the positions were controlled at the heights of not contacting with the reaction solution.
Sources & evidence
- ORD record
- ord-4e74a8330fe846d0acec841551efed9f
- Source dataset
- uspto-grants-2004_08
- Patent number
- US06783927B2
Reaction notes
Loading…