Amine-aldehyde resins and uses thereof in separation processes
US8757389B2 · kind B2 · utility
1Cited by
60References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2006 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jun 9, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Amine-aldehyde resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These resins are especially useful as froth flotation depressants, for example in the beneficiation of value materials (e.g., bitumen, coal, or kaolin clay) to remove impurities such as sand. The resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.