Process and apparatus for making a solution or dispersion of a hydrosoluble powder
US4725379A · kind A · utility
2Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Jan 8, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/916
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a process and an apparatus for making a stable solution or dispersion of a hydrosoluble powder. It is characterized by the simultaneous use of a system for withdrawing powder from a vessel (2) e.g. by means of a gas (4), the dilution of the powder in a carrying gas, the driving with said carrying gas, of the obtained dilution, through a transfer duct (10), the passage of the dilution across an electrostatic field (11) and the solubilization in water of a tank (12). The invention is particularly applicable to the dispersion of polyacrylamides used in the technique of enhanced oil recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.