Sorption agent, method of making a sorption agent and barrier system
US11207658B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2017 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Aug 18, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J41/09
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An anionic sorption agent, method for forming the anionic sorption agent and a barrier system are disclosed. The anionic sorption agent including a modified pseudo or glycol-boehmite base comprising a structure having cationic metal ion sites. The method for forming the anionic sorption agent includes providing a pseudo or glycol-boehmite base and contacting the pseudo or glycol-boehmite base a modifying composition comprising a metallic ion to form the modified pseudo or glycol-boehmite base comprising a structure having cationic metal ion sites. The barrier system includes the anionic sorption agent comprising a first barrier component comprising a modified pseudo or glycol-boehmite base comprising a structure having cationic metal ion sites and a second barrier component comprising a cationic sorption agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.