| 发明名称 | Process and system for the separation and drying of carboxylic acid crystals | ||
| 摘要 | In a process for the separation and drying of crude carboxylic acid crystals from a slurry in a solvent, the slurry is supplied to a filter operating at pressure and at a temperature above the atmospheric boiling point of the solvent. A cake of separated crystals is removed from the filter and passed to a thermal dryer. In a system for the separation and drying of crude carboxylic acid from a slurry in a solvent, a pressure filter device has a slurry inlet and an outlet for a cake of carboxylic acid crystals. The system also has a thermal dryer and means for transporting the cake of carboxylic acid crystals from the pressure filter device to the dryer. The pressure filter device is configured to operate at a pressure and temperature above the atmospheric boiling point of the solvent. | ||
| 申请公布号 | US9018415(B2) | 申请公布日期 | 2015.04.28 |
| 申请号 | US201113698732 | 申请日期 | 2011.05.18 |
| 申请人 | Davy Process Technology Limited | 发明人 | Gray Julian Stuart;Winter Michael William;Gnagnetti Andrea |
| 分类号 | C07C51/47;C07C51/43 | 主分类号 | C07C51/47 |
| 代理机构 | Armstrong Teasdale LLP | 代理人 | Armstrong Teasdale LLP |
| 主权项 | 1. A process for the separation and drying of crude carboxylic acid crystals from a slurry in a solvent, the process comprising the steps of: supplying the slurry comprising crystals of carboxylic acid to a filter operating at pressure and at a temperature above the atmospheric boiling point of the solvent; removing a cake of separated crystals from said filter; and passing said cake to a thermal dryer, wherein a once pass sweep gas is provided to the dryer. | ||
| 地址 | London GB | ||