Di- and mono-alkoxysilane functionalized polymers and their application in the Bayer process
US8501010B2 · kind B2 · utility
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Key dates
| Filing date | Oct 5, 2012 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/47
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Diallcoxysilane and monoalkoxysilane functionalized polymers were applied as scale control agents in Bayer process. The polymer inhibitors reduced the quantity of aluminum silicate scale formed in spent liquor while significantly changed the morphology of the scale. Also a method is provided for reducing aluminum silicate scale of Bayer process by adding the dialkoxysilane and monoalkoxysilane functionalized polymer into the Bayer liquor stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.