تفاعل #543548

معادلة التفاعل

behenic acid

water

NaOH

→

sodium behenate

المذيبات

t-butyl alcohol

ظروف التفاعل

المعالجة

1. 1
   أخرىreacted at 75° C. for one hour while the resultant system

الإجراء التجريبي

Eighty-eight kg of recrystallized behenic acid, 422 L of distilled water, 49.2 L of a 5 mol/L aqueous NaOH solution and 120 L of t-butyl alcohol were mixed and reacted at 75° C. for one hour while the resultant system was being stirred. Thus, a sodium behenate solution B was obtained. Separately, 206.2 L of an aqueous solution (pH 4.0) containing 40.4 kg of silver nitrate was prepared and kept at 10° C. A reaction vessel containing 635 L of distilled water and 30 L of t-butyl alcohol was kept at 30° C. The entire amount of the sodium behenate solution and the entire amount of the aqueous solution of silver nitrate were added to the content of the vessel at constant flow rates over 93 minutes and 15 seconds and over 90 minutes, respectively, while the content in the vessel was being sufficiently stirred. At this time, only the aqueous solution of silver nitrate was added for 11 minutes after starting the addition of the aqueous solution of silver nitrate, addition of the sodium behenate solution B was started subsequently, and only the sodium behenate solution was added for 14 minutes and 15 seconds after completion of the addition of the aqueous solution of silver nitrate. At this time, the internal temperature of the reaction vessel was kept at 30° C. The external temperature was controlled such that the liquid temperature was constant. The pipe line for the sodium behenate solution was a double-walled pipe and thermally insulated by circulating hot water through the interspace of the double-walled pipe, and the temperature of the solution at the outlet of the nozzle tip was adjusted at 75° C.

المصدر