Silica removal process and alumina composition used therein
US4332031A · kind A · utility
9Cited by
5References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 21, 1980 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Mar 21, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Silica is selectively removed from aqueous liquid containing a relatively large amount of borate (or boric acid) and a relatively small amount of silica using borate loaded alumina as the sorbant. The effluent can be passed through lithium loaded cation exchange resin to remove any dissolved aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.