Process to crystallize chelating agents
US9745250B2 · kind B2 · utility
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1References
9Claims
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Assignee
Inventors
Key dates
| Filing date | May 11, 2015 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | May 11, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D9/0036
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a process to crystallize a chelating agent containing a step of adding seeds to a saturated or supersaturated aqueous solution or dispersion of the chelating agent and a subsequent step of milling the dispersion, wherein the step of milling the dispersion is performed using equipment operating at at least 1,000 rpm, and to products obtainable by such process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.