Hydrochloric acid pickling accelerator
US5384064A · kind A · utility
4Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1993 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Dec 14, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A hydrochloric acid pickling accelerator for batch and continuous hydrochloric acid pickling baths for all types of steel, comprising an admixture of from about 10 to about 15 percent by weight glycol, from about 20 to about 30 percent by weight calcium chloride, from about 3 to about 6 percent by weight phosphoric acid, from about 32 to about 57 percent by weight water, and from about 0.5 to about 2 percent by weight of a fluorinated surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.