Multi-stage crystallisation process and apparatus to purify a compound
US9597609B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Dec 18, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process to purify a compound comprising a suspension crystallization step and additionally comprises a layer crystallization step and a storage step of an intermediate product obtained from the layer crystallization step before to its further purification in the suspension crystallization step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.