GB1052188A - - Google Patents
Info
- Publication number
- GB1052188A GB1052188A GB1052188DA GB1052188A GB 1052188 A GB1052188 A GB 1052188A GB 1052188D A GB1052188D A GB 1052188DA GB 1052188 A GB1052188 A GB 1052188A
- Authority
- GB
- United Kingdom
- Prior art keywords
- active carbon
- suspension
- zone
- gases
- reaction
- 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
-
- 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
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/775—Liquid phase contacting processes or wet catalysis processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,052,188. Sulphuric acid. BADISCHE ANILIN- & SODA-FABRIK A.G. Sept. 24, 1963 [Sept. 28, 1962; Dec. 14, 1962: Jan. 23, 1963], No. 37473/63. Heading C1A. H 2 SO 4 is produced by the reaction of gases containing SO 2 and O 2 by passing the gases through an aqueous suspension of finely divided active carbon, e.g. from sawdust, peat, pitch coal or granular anthracite, which suspension may contain H 2 SO 4 , at from 30‹ to 90‹ C., the speed of the gases being so adjusted that the suspension is not fluidized. The carbon suspension may contain from 125-500 cm<SP>3</SP>. of active carbon per litre. The suspension of active carbon may be moved countercurrently to the gas stream. The reaction may be carried out in a plurality of successive reaction zones with the H 2 SO 4 concentration of the suspensions of active carbon decreasing from zone to zone, an approximately constant water vapour pressure being maintained in each zone, and by varying the temperature in dependence on the acid concentration in the individual zones. The active carbon used may have a ratio of micropore volume to macropore volume of from 3: 1 to 7: 1 and a mean pore radius of. less than 40 Š and preferably from 10 to 20 Š. The active carbon may have a mean grain size of 30 microns.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1052188A true GB1052188A (en) | 1900-01-01 |
Family
ID=1756844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1052188D Expired GB1052188A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1052188A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49131961A (en) * | 1973-04-02 | 1974-12-18 | ||
| US3939251A (en) * | 1968-11-01 | 1976-02-17 | Hitachi, Ltd. | Regeneration method for gas treating apparatus |
| US3981972A (en) * | 1972-08-25 | 1976-09-21 | Hitachi, Ltd. | Method for desulfurizing flue gas by active carbon suspension |
| US4113840A (en) * | 1974-09-19 | 1978-09-12 | Beamer/Wilkinson & Associates | Process for the removal of sulfur dioxide from exhaust flue gases |
| EP0343418A2 (en) * | 1988-05-21 | 1989-11-29 | Bayer Ag | Process for the preparation of titanium dioxide |
| US5198206A (en) * | 1988-06-09 | 1993-03-30 | Haldor Topsoe A/S | Condensing sulfuric acid vapors to produce sulfuric acid |
-
0
- GB GB1052188D patent/GB1052188A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939251A (en) * | 1968-11-01 | 1976-02-17 | Hitachi, Ltd. | Regeneration method for gas treating apparatus |
| US3981972A (en) * | 1972-08-25 | 1976-09-21 | Hitachi, Ltd. | Method for desulfurizing flue gas by active carbon suspension |
| JPS49131961A (en) * | 1973-04-02 | 1974-12-18 | ||
| US4113840A (en) * | 1974-09-19 | 1978-09-12 | Beamer/Wilkinson & Associates | Process for the removal of sulfur dioxide from exhaust flue gases |
| EP0343418A2 (en) * | 1988-05-21 | 1989-11-29 | Bayer Ag | Process for the preparation of titanium dioxide |
| EP0343418A3 (en) * | 1988-05-21 | 1991-03-27 | Bayer Ag | Process for the preparation of titanium dioxide |
| US5198206A (en) * | 1988-06-09 | 1993-03-30 | Haldor Topsoe A/S | Condensing sulfuric acid vapors to produce sulfuric acid |
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