公开(公告)号：EP2804477A1

公开(公告)日：2014-11-26

申请号：EP13738032.5

申请日：2013-01-17

申请人： Dow AgroSciences LLC

发明人： LI, Ruokang ,  DIXIT, Ravindra S. ,  PATEL, Avani M. ,  CHEN, Xiaoyun ,  PELL, Randy J. ,  PENDERGAST, John G.

IPC分类号： A01N33/12

CPC分类号： C07C213/04 ,  C07C217/08 ,  C07C215/40

摘要： Processes for preparing N,N,N-trimethylethanolammonium hydroxide (choline hydroxide) and the choline hydroxide produced are described. These processes minimize the production of byproduct mono-ethoxylated and di-ethyoxylated choline in the product choline hydroxide. The processes generally include feeding ethylene oxide, trimethylamine, and water into a first reactor to create a first reactor product under temperature controlled conditions. The product of the first reactor is fed into a second reactor to form a second reactor product under uncontrolled, adiabatic, conditions. Finally, any unreacted trimethylamine in the second reactor product is removed to form a final product comprising choline hydroxide. Additional reactors can be used for the ethylene oxide and trimethylamine reaction.

公开(公告)号：EP2804477B1

公开(公告)日：2018-06-27

申请号：EP13738032.5

申请日：2013-01-17

申请人： Dow AgroSciences LLC

发明人： LI, Ruokang ,  DIXIT, Ravindra S. ,  PATEL, Avani M. ,  CHEN, Xiaoyun ,  PELL, Randy J. ,  PENDERGAST, John G.

IPC分类号： A01N33/12 ,  C07C213/04 ,  C07C217/08 ,  C07C215/40

CPC分类号： C07C213/04 ,  C07C217/08 ,  C07C215/40

摘要： Processes for preparing N,N,N-trimethylethanolammonium hydroxide (choline hydroxide) and the choline hydroxide produced are described. These processes minimize the production of byproduct mono-ethoxylated and di-ethyoxylated choline in the product choline hydroxide. The processes generally include feeding ethylene oxide, trimethylamine, and water into a first reactor to create a first reactor product under temperature controlled conditions. The product of the first reactor is fed into a second reactor to form a second reactor product under uncontrolled, adiabatic, conditions. Finally, any unreacted trimethylamine in the second reactor product is removed to form a final product comprising choline hydroxide. Additional reactors can be used for the ethylene oxide and trimethylamine reaction.