Distillation process
US4415443A · kind A · utility
24Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1981 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Jul 10, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G7/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for improving the separation of a feed into a distillate and a bottoms product is disclosed. The subject invention includes a first distillation zone and a second distillation zone, each having rectification and stripping zones. Bottoms from the first stripping zone are passed into the second distillation zone. Distillate from the second rectification zone is removed utilizing a fluid evacuation means and returned to the first stripping zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.