Composition and method for enhancing the production of crystal agglomerates from a precipitation liquor
US8282689B2 · kind B2 · utility
3Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Mar 11, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates ways to increase the output of a high quality product from the precipitation liquor crystallization process exemplified through the aluminum hydroxide recovery processes such as the Bayer process. The invention is a method of increasing the size of precipitated of a liquor. The invention in one embodiment relates to the use of a crystal growth modifier compositions added to the precipitation process to increase the particle size distribution of the precipitated alumina trihydrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.