Process for removing metals from aluminosilicate materials
US4891130A · kind A · utility
4Cited by
12References
40Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1986 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/516
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a process for removing accumulated metals, particularly vanadium and nickel, from particulate aluminosilicate materials and aluminosilicate materials that are obtained by the process. The process may advantageously be used to remove accumulated metals from spent aluminosilicate contact materials used in selective vaporization processes of the type described in U.S. Pat. No. 4,263,128. The process of this invention yields materials suitable for effective recycling to a selective vaporization unit or for ecologically-acceptable disposal, as well as, optionally, recovery of metals in saleable form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.