GB479106A - Improvements in or relating to distillation - Google Patents
Improvements in or relating to distillationInfo
- Publication number
- GB479106A GB479106A GB11956/36A GB1195636A GB479106A GB 479106 A GB479106 A GB 479106A GB 11956/36 A GB11956/36 A GB 11956/36A GB 1195636 A GB1195636 A GB 1195636A GB 479106 A GB479106 A GB 479106A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- boiling
- solvent
- small proportion
- evaporators
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
- B01D3/148—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step in combination with at least one evaporator
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0479106/III/1> In order to separate the major portion of a low-boiling material from a mixture containing a large proportion of the said material and a small proportion of a considerably higher boiling material, the mixture is heated in an exchanger 4 before being introduced into a low-pressure evaporator 6, the liquid residue from which passes through a pipe still 12 which heats it to a high temperature and delivers it to a high-pressure evaporator 10, the vapours from which serve to heat the exchanger 4. A small proportion, for example one per cent, of the liquid leaving through pipe 16 may be returned to the evaporators through pipes 20 and 22. The process may be used in the recovery of solvent from the mixture obtained in the solvent extraction of oils. This mixture will, for example, be composed of a large proportion of solvent boiling at about 300 DEG F., and a small proportion of oil boiling at about 700 DEG F. The pressures in the evaporators 6 and 10 may be 17 and 60 pounds absolute respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US479106XA | 1935-05-28 | 1935-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB479106A true GB479106A (en) | 1938-01-31 |
Family
ID=21951700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11956/36A Expired GB479106A (en) | 1935-05-28 | 1936-04-27 | Improvements in or relating to distillation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB479106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2184665A (en) * | 1985-12-23 | 1987-07-01 | Boc Group Plc | Separation of gaseous mixtures |
-
1936
- 1936-04-27 GB GB11956/36A patent/GB479106A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2184665A (en) * | 1985-12-23 | 1987-07-01 | Boc Group Plc | Separation of gaseous mixtures |
| US4759786A (en) * | 1985-12-23 | 1988-07-26 | The Boc Group Plc | Separation of gaseous mixtures |
| GB2184665B (en) * | 1985-12-23 | 1990-05-09 | Boc Group Plc | Separation of gaseous mixtures |
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