| 发明名称 | Method to remove carbonate from a caustic scrubber waste stream | ||
| 摘要 | A method to recover caustic from a caustic waste stream comprises reducing the temperature of a caustic waste stream comprising dissolved Na2CO3 to a temperature less than or equal to the temperature at which the Na2CO3 precipitates from the caustic waste stream to form a caustic waste stream comprising precipitated Na2CO3 and separating the precipitated Na2CO3. | ||
| 申请公布号 | US9364794(B2) | 申请公布日期 | 2016.06.14 |
| 申请号 | US201214344378 | 申请日期 | 2012.09.13 |
| 申请人 | SABIC GLOBAL TECHNOLOGIES B.V. | 发明人 | Gautam Pankaj Singh;Nair Vinod S. |
| 分类号 | C01D7/12;B01D53/96;C01D7/26;B01D53/62 | 主分类号 | C01D7/12 |
| 代理机构 | Cantor Colburn LLP | 代理人 | Cantor Colburn LLP |
| 主权项 | 1. A method to recover caustic from a caustic waste stream comprising: reducing the temperature of a caustic waste stream comprising dissolved Na2CO3 to a temperature less than or equal to the temperature at which Na2CO3 precipitates from the caustic waste stream to form a caustic waste stream comprising precipitated Na2CO3, and separating the precipitated Na2CO3 from the caustic waste stream by a solid-liquid separation system, wherein the caustic waste stream comprises dissolved Na2CO3 has Na2CO3 present in an amount of 8 weight percent, NaOH present in an amount of 2 to 10 weight percent, and NaCl present in an amount of 3 weight percent, based on the total weight of the caustic waste stream. | ||
| 地址 | NL | ||