Method of dissolving solid or semi-solid material into solvent
US4797230A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1986 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | May 28, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F21/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Applicants' invention relates to a method for dissolving a solute material in a container by contacting the solute with a solvent in another container. Applicants' method relies upon the difference in the specific gravities of the solvent and the solute to create a convection current between their respective containers. The material, either the solute or the solvent, having the larger specific gravity is placed above the material having the smaller specific gravity, and the two materials are brought into contact. The solute dissolves in the solvent, and the resulting solution, which has a lower or higher specific gravity than the solvent, causes a convection current which draws the heavier material down and the lighter material up. As the convection current proceeds, the undissolved solute continues to come into contact with fresh solvent accelerating the dissolution process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.