Filtration of wet process superphosphoric acid
US4547295A · kind A · utility
4Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1983 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Dec 7, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D37/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Filtration of wet process superphosphoric acid by vacuum filtration is greatly enhanced by the use of a filter aid having a statistically selected distribution of particle sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.