Process of evaporating a liquid in a cyclone evaporator
US5901271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Feb 26, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/4486
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cyclone evaporator includes an evaporator body with an evaporation chamber therein. The evaporation chamber preferably includes a thermally conductive sidewall having a generally cylindrical upper portion and a downwardly tapered lower portion. The evaporator body further includes a cover having a vapor outlet opening into the evaporation chamber and an outlet tube. The outlet tube circumscribes the vapor outlet and extends into a lower portion of the evaporation chamber. A liquid precursor passage and a carrier gas passage extend through the evaporator body and open into the evaporation chamber. In one embodiment, the carrier gas passage is positioned to direct carrier gas parallel to liquid precursor flow and intersect the liquid precursor at a liquid precursor passage outlet within the evaporation chamber. In another embodiment, the carrier gas passage is positioned to direct carrier gas across an outlet of liquid precursor passage. In both embodiments, the carrier gas facilitates atomization of the liquid precursor and flows cyclonically to distribute the atomized liquid precursor within the evaporation chamber. The liquid precursor deposits on the thermally conductive evapor…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.