Agglomerate absorbents comprising copper and zinc for sulphur compounds removal
US4871710A · kind A · utility
44Cited by
12References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1987 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Apr 16, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/3078
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Agglomerates containing oxides, hydroxides, carbonates and/or basic carbonates of copper, and zinc and/or another element such as aluminum or silicon, are useful for removal of sulphur compounds from fluids, especially under non-reducing conditions. The agglomerates have surface area above 80 m.sup.2.g.sup.-1 and a calcined density below 1.5 g.cm.sup.-3. After ignition, the cupric oxide plus zinc oxide (if any) content of the agglomerates is at least 70% w/w. The proportion of the copper compound is such that the copper atoms constitute 30-97% of the total of the copper, zinc, and said other element atoms in the agglomerates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.