Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1993 | Invention patented by Alan T. Cheng on January 28th, 1993. Abstract: A direct contact cryogenic crystallizer having a vertically oriented draft tube into which cryogenic fluid is injected at a high velocity along with warm gas and through which a crystal slurry is drawn for subsequent cooling and agitation for the production of crystals. |
| 1994 | Invention patented by Alan T. Cheng on July 14th, 1994. Abstract: A direct contact cryogenic crystallizer having a vertically oriented draft tube into which cryogenic fluid is injected at a high velocity along with warm gas and through which a crystal slurry is drawn for subsequent cooling and agitation for the production of crystals. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
