Method for removing metal contaminants from solution using mercapto-functional silica xerogels
US6013187A · kind A · utility
7Cited by
4References
14Claims
0Family size
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Key dates
| Filing date | Aug 31, 1998 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Aug 31, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/912
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for removing metal contaminates from solution using mercapto-functional silica xerogels. The mercapto-functional silica xerogels are characterized by having a surface area greater than 365 m.sup.2 /g, an average pore diameter of at least 6 nm, and a pore volume of at least 2 cm.sup.3 /g. The mercapto-functional silica xerogels are particularly useful for removing Group VIII metals such as platinum from solutions comprising polyorganosiloxane fluids and resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.