Title:
中和法
Document Type and Number:
Japanese Patent JP2009507062
Kind Code:
A
Abstract:
Neutralization procedure comprises partially neutralizing at least an ethylenically unsaturated carboxylic acid compound with a base, where the neutralization takes place in a continuous process and the neutralized solution is at less than 70[deg]C. Independent claims are included for: (1) a procedure for production of water-absorbing polymer comprising a neutralization procedure; and (2) a device for continuous neutralization comprising a circular pipe (R), at least a first supply pipe (Z 1) and second supply pipe (Z 2) in the circular pipe, at least a heat exchanger (W 1) in the circular pipe, where the heat exchanger flows directly behind the supply pipes, at least a conduit (A), which flows directly behind the heat exchanger, a pump (P) and optionally a container (B) between the heat exchanger and the conduit.
Inventors:
Matthias Weismantel
Michael de Marco
Dominicus fan es brook
Carl Ye Possemias
Ronido Kay
Michael de Marco
Dominicus fan es brook
Carl Ye Possemias
Ronido Kay
Application Number:
JP2008529604A
Publication Date:
February 19, 2009
Filing Date:
August 31, 2006
Export Citation:
Assignee:
BASF SE
International Classes:
C07C51/41; B01J20/26; C07C57/04
Domestic Patent References:
| JPH02209906A | 1990-08-21 | |||
| JPS50142511A | 1975-11-17 |
Foreign References:
| WO2003095410A1 | 2003-11-20 | |||
| WO2005073260A1 | 2005-08-11 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Hiroshi Sugimoto
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Reinhard Einsel