Absorbents
US6558641B1 · kind B1 · utility
4Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2000 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Nov 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Shaped absorbent units suitable for use as chloride absorbents comprising a calcined intimate mixture of an alkali or alkaline earth, zinc and aluminium components having an alkali or alkaline earth mental to zinc atomic ratio in the range 0.5x to 2.5x and an alkali or alkaline earth metal to aluminium atomic ratio in the range 0.5x to 1.5x, where x is the valency of the alkali or alkaline earth metal, and containing from 5 to 20% by weight of a binder. Preferred compositions are made from sodium carbonate or bicarbonate, basic zinc carbonate or zinc oxide and alumina or hydrated alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.