Method for enhancing digestion reaction rates of chemical systems
US5585086A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1994 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Sep 6, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is a method for enhancing reaction rates when digesting chemical systems which form passivating layers. Particles are introduced into a digestion fluid bath. Digestion is allowed to proceed until passivating layers of digestion products have partially formed on the particles. The layers constitute a diffusion barrier to the digestion fluid and reduce the digestion rate. The particles are periodically conveyed through an ultrasonic beam to remove portions of the passivating layers. Thus, fresh surfaces of the particles are exposed to the digestion fluid bath. The periodic conveyance is such that a desired rate of digestion is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.