GB695595A - Process of and apparatus for evaporating liquids - Google Patents
Process of and apparatus for evaporating liquidsInfo
- Publication number
- GB695595A GB695595A GB9098/51A GB909851A GB695595A GB 695595 A GB695595 A GB 695595A GB 9098/51 A GB9098/51 A GB 9098/51A GB 909851 A GB909851 A GB 909851A GB 695595 A GB695595 A GB 695595A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- film
- evaporation
- radiator
- sulphuric acid
- 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
- B01D1/00—Evaporating
- B01D1/02—Evaporators with heating coils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
<PICT:0695595/III/1> Liquids such as aqueous sulphuric acid and sulphite lye are evaporated by causing a film of the liquid to flow down the inner surface of a tube, and exposing the falling film to thermal radiation from a heated tube disposed co-axially inside the film-supporting tube. The evaporation may be effected under reduced pressure. Dilute sulphuric acid (70 per cent) is introduced through pipe 1 into vessel 2. The acid weirs over serrated edge 3 and forms a downflowing film on the inner surface of tube 4, which is made of ferrosilicon and is thermally insulated. Inside and co-axial with tube 4 is a steel tube 8 maintained at a temperature of about 550 DEG C by gas-burner 9. A helix 10, the height of which can be adjusted, is provided in the interior of radiator 8. This helix improves the distribution of the combustion gases, takes up heat from the gases and transmits the same to radiator 8. Concentrated sulphuric acid (94 per cent) collects in water-cooled trough 6, and is removed through overflow 7. The evaporation may be carried out under a pressure of 30 mm. Hg by condensing the vapours in a barometric condenser, and withdrawing the concentrated acid from the apparatus through a vacuum trap. If the evaporation is effected at 30 mm. Hg, the radiator temperature may be reduced to 350 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE695595X | 1950-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB695595A true GB695595A (en) | 1953-08-12 |
Family
ID=6607498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9098/51A Expired GB695595A (en) | 1950-04-27 | 1951-04-18 | Process of and apparatus for evaporating liquids |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE502678A (en) |
| FR (1) | FR1035504A (en) |
| GB (1) | GB695595A (en) |
| NL (2) | NL160780B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209812A (en) * | 1959-09-22 | 1965-10-05 | Ralph G Sargeant | Apparatus for removing water from liquid mixtures |
| FR2354961A1 (en) * | 1976-06-18 | 1978-01-13 | Bertrams Ag Hch | MULTI-STAGE APPARATUS FOR CONCENTRATING SULFURIC ACID AND PROCESS FOR ITS IMPLEMENTATION |
| CN107823903A (en) * | 2017-12-07 | 2018-03-23 | 江苏迈克化工机械有限公司 | A kind of helical falling-film evaporator |
| CN114669066A (en) * | 2022-03-24 | 2022-06-28 | 四川点石能源股份有限公司 | MVR evaporation concentration system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH604798A5 (en) * | 1976-06-18 | 1978-09-15 | Bertrams Ag Hch |
-
0
- NL NL77785D patent/NL77785C/xx active
- BE BE502678D patent/BE502678A/xx unknown
- NL NL7312618.A patent/NL160780B/en unknown
-
1951
- 1951-04-17 FR FR1035504D patent/FR1035504A/en not_active Expired
- 1951-04-18 GB GB9098/51A patent/GB695595A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209812A (en) * | 1959-09-22 | 1965-10-05 | Ralph G Sargeant | Apparatus for removing water from liquid mixtures |
| FR2354961A1 (en) * | 1976-06-18 | 1978-01-13 | Bertrams Ag Hch | MULTI-STAGE APPARATUS FOR CONCENTRATING SULFURIC ACID AND PROCESS FOR ITS IMPLEMENTATION |
| CN107823903A (en) * | 2017-12-07 | 2018-03-23 | 江苏迈克化工机械有限公司 | A kind of helical falling-film evaporator |
| CN114669066A (en) * | 2022-03-24 | 2022-06-28 | 四川点石能源股份有限公司 | MVR evaporation concentration system |
| CN114669066B (en) * | 2022-03-24 | 2023-09-26 | 四川点石能源股份有限公司 | MVR evaporation concentration system |
Also Published As
| Publication number | Publication date |
|---|---|
| NL77785C (en) | |
| FR1035504A (en) | 1953-08-25 |
| BE502678A (en) | |
| NL160780B (en) |
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