Apparatus for manufacturing ultra-fine particles using corona discharge and method thereof
US7972567B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 25, 2005 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Aug 31, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C2201/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses an apparatus and method for manufacturing ultra-fine particles using corona discharge capable of manufacturing the ultra-fine particles nanometers in size from a reaction gas using the corona discharge. In the apparatus for manufacturing ultra-fine particles of the present invention, a reaction gas feeder supplies a nozzle with reaction gas, and the reaction gas is injected. When a power supply applies a high voltage to the nozzle, the corona discharge occurs at the nozzle. Thus, the injected reaction gas is dissolved, and a large number of ultra-fine particles are produced. Then, a collection plate collects the ultra-fine particles. In addition, a duct encloses the nozzle, so that a passage is formed between the nozzle and duct. Sheath gas supplied to the passage of the duct forms a gas curtain between the nozzle and the collection plate, so that the gas curtain leads the flow of the ultra-fine particles. If other reaction gas is supplied to the passage of the duct and heat energy is supplied thereto, the other reaction gas reacts thermochemically, so that a large number of other ultra-fine particles are produced. The ultra-fine particles produced b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.