Reaction systems with incorporated chromatography units for enhanced product recovery
US8357302B2 · kind B2 · utility
0Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2011 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D9/0045
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Product yields in chemical reactions that produce a solid product from a liquid reaction mixture are improved by chromatographically separating certain key impurities from the product mixture prior to crystallization, or from the filtrate after crystallization in which case further product is crystallized from the filtrate. The removal of key impurities either before the first crystallization or between the first and second crystallizations facilitates the crystallization of product to produce a higher yield of product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.