Evaporative concentration of clay slurries
US5730836A · kind A · utility
11Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1994 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Sep 26, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/11
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for concentrating a clay slurry by subjecting the slurry to indirect heat exchange within a heat exchanger to elevate the temperature of the slurry while specifically suppressing boiling of the liquid within the heat exchanger. The heated slurry is subsequently subjected to a rapid pressure reduction which causes flash evaporation of part of the liquid. The rapid pressure reduction can occur in a separation vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.