Evaporative and centrifugal apparatus for effecting concentration and/or purification of feed stocks
US3957588A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 1975 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | May 29, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D1/222
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A low temperature purification system is provided which is particularly adapted for use to mechanically purify in a continuous operation solutions containing solids and dissolved substances. The purification system includes a solution supply means, and a centrifugal vacuum evaporator to which the solution to be purified is fed. Drive means is operatively connected to the evaporator for subjecting the solution within the evaporator to centrifugal acceleration and causes the solids in the solution to be displaced outwardly of the axis of rotation of the solution and the liquid of the solution to be displaced inwardly toward the axis of rotation. Outlet means is embodied in the evaporator for discharging the solids therefrom. The liquid as it is being displaced inwardly is simultaneously subjected to a reduced pressure to produce vapor which is conducted to a condenser means wherein the vapor is condensed to a substantially pure liquid. Heat pump means is provided in the system including the centrifugal vacuum evaporator and the condenser means to transfer the heat of condensation absorbed by the condenser means to the solution in the centrifugal vacuum evaporator to supply heat to th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.