Treatment of sulfide-limed pelts in acid baths
US4105402A · kind A · utility
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9Claims
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Assignee
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Key dates
| Filing date | May 3, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | May 3, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC14C1/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of treating sulfide-limed pelts in improved acid treating baths for purposes of de-liming, bating, pickling, or pre-tanning is disclosed. The improved baths contain water-soluble salts of manganese, cobalt, nickel, titanium, or zirconium, which salts discourage hydrogen sulfide formation during the acid treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.