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
88 kg of recrystallized behenic acid, 422 L of distilled water, 49.2 L of an NaOH aqueous solution having a concentration of 5 moles/L, and 120 L of t-butyl alcohol were mixed, and the mixture was stirred for reaction at 75° C. for one hour to obtain a sodium behenate solution B. Separately, 206.2 L of an aqueous solution of 40.4 kg of silver nitrate (pH=4.0) was prepared and thermally insulated at 10° C. A reaction vessel charged with 635 L of distilled water and 30 L of t-butyl alcohol was thermally insulated at 30° C., and the whole of the foregoing sodium behenate solution and the whole of the silver nitrate aqueous solution were added at a fixed flow rate with though stirring over 93 minutes 15 seconds and 90 minutes, respectively. At this time, the addition of these solutions was scheduled in such a manner that during a period of time of 11 minutes after starting the addition of the silver nitrate aqueous solution, only the silver nitrate aqueous solution was added; that thereafter, the addition of the sodium behenate solution was started; and that a during a period of time of 14 minutes 15 seconds after completion of the addition of the silver nitrate aqueous solution, only the sodium behenate solution was added. At this time, the external temperature was controlled in such a manner that the temperature within the reaction vessel was set up at 30° C. and that the liquid temperature was constant. Also, a piping of the addition system of the sodium behenate solution was thermally insulated by circulating warm water into the outer side of double pipes, thereby adjusting the liquid temperature of an outlet of the tip of an addition nozzle at 75° C. Also, a piping of the addition system of the silver nitrate aqueous solution was thermally insulated by circulating cold water into the outer side of double pipes. The position of adding the sodium behenate solution and the position of adding the silver nitrate aqueous solution were symmetrically aligned while making the stirring axis as a center and adjusted in a height not so as to come into contact with the reaction liquid.
Workup
- additionwere mixed
Sources & evidence
- ORD record
- ord-6057696ba39944dba7a7123080f7071d
- Source dataset
- uspto-grants-2006_12
- Patent number
- US07151238B2
Reaction notes
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