Fluidized-bed type multistage solid-liquid contact apparatus
US4042500A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1975 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | May 28, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/003
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed are improvements in and relating to a fluidized-bed type multistage solid-liquid contact apparatus which comprises a contact column incorporating therein a multiplicity of a spaced and horizontal support plates each carrying thereon a fluidized bed of solid particles and having a downcomer for communicating between the upper and lower sides of the plate, a storage tank for the liquid to be treated by contact with said layer of fluidized solid particles in said contact column, a storage tank for receiving the treated liquid and a storage tank for solid particles for use in said layers. In the improved fluidized-bed type multistage solid-liquid contact apparatus, the storage tank for solid particles is provided with a metering tank, the support plate in each stage is composed of one upper and one lower perforated plate and, in case where the downcomer is pierced through the support plate, the inside diameter of the tube is larger in the upper portion than in the lower portion and the forward end of the pipe used for delivering the solid particles to the contact column opens therein in a horizontal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.