Process for acidizing hot siliceous material
US4548732A · kind A · utility
4Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1984 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Apr 18, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/933
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The dissolving of siliceous material in an environment containing corrodable metal and having a temperature exceeding about 300.degree. F. is improved by using an aqueous solution containing an amount of ammonium fluoride equivalent to that in a 2-3 molar solution of hydrogen fluoride and enough weak acid and weak acid salt to provide a pH of near to but less than 7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.