Demetalation of hydrocarbonaceous feedstocks using sulfuric acid and salts thereof
US5593573A · kind A · utility
4Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G17/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Sulfuric acids or salts thereof are used to remove metals, particularly organically-bound calcium, from hydrocarbonaceous feedstocks. An aqueous solution of the acid or its salts is used to extract the metals from the feedstock prior to processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.