Amine-aldehyde resins and uses thereof in separation processes
US8702993B2 · kind B2 · utility
0Cited by
61References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2005 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/205
- 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 in the separation of bitumen from sand and/or clay or in the beneficiation of clay (e.g., kaolin clay) from an impure clay-containing ore. 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.