| 发明名称 |
HEAT-TREATMENT OF WATER-ABSORBING POLYMERIC PARTICLES IN A FLUIDIZED BED AT A FAST HEAT-UP RATE |
| 摘要 |
The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature equal to or above 150° C. in a fluidized bed dryer at a fast heat-up rate, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention. |
| 申请公布号 |
US2014345154(A1) |
申请公布日期 |
2014.11.27 |
| 申请号 |
US201214358792 |
申请日期 |
2012.12.18 |
| 申请人 |
EVONIK DEGUSSA GMBH |
发明人 |
Gartner Herbert;Hager Marc;Plochinger Harald;Auernig Sabine;Kohler Hans-Peter;Lacker Elisabeth |
| 分类号 |
F26B3/00 |
主分类号 |
F26B3/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for heat-treating water-absorbing polymeric particles at a temperature Tp1 equal to or above 150° C., wherein said water-absorbing polymeric particles are heated in the fluidization chamber of a fluidized bed dryer from an initial particle temperature T0 equal to or below 50° C. to said temperature Tp1 at a heat-up rate of at least 10° C. per minute. |
| 地址 |
Essen DE |
