反応 #459548

反応方程式

MAPP

isopropenyl stearate

stearic acid

→

stearic anhydride

反応条件

後処理

1. 1
   その他was removed from the product mixture in flash chamber 14
2. 2
   その他a liquid seal (not
3. 3
   温度was maintained at the bottom drain 15
4. 4
   その他A sight glass was provided in the barricade
5. 5
   その他was at a temperature of about 280° F
6. 6
   workup.DISSOLUTIONno apparent dissolved gas

実験手順

When the reaction was completed, spent MAPP gas was removed from the product mixture in flash chamber 14. Gases were vented overhead and a liquid seal (not shown) was maintained at the bottom drain 15 to prevent leakage of spent gases into the atmosphere. A sight glass was provided in the barricade to permit remote manual control of the liquid level in chamber 14. Liquid exiting from the flash chamber was at a temperature of about 280° F and contained no apparent dissolved gas. Since isopropenyl stearate reacts slowly with stearic acid to form stearic anhydride the reaction was quenched by rapidly solidifying the product on double drum flaker 16. Drum clearance was 0.044 inches and the drums were cooled by circulating water at a temperature of about 50° F at a rate of about 2.9 gallons per minute. The product, an amorphous solid, was scraped from the drums with doctor blades.

出典