GB1407161A - Process for the production of a sulphur dioxide-containing gas - Google Patents
Process for the production of a sulphur dioxide-containing gasInfo
- Publication number
- GB1407161A GB1407161A GB172373A GB172373A GB1407161A GB 1407161 A GB1407161 A GB 1407161A GB 172373 A GB172373 A GB 172373A GB 172373 A GB172373 A GB 172373A GB 1407161 A GB1407161 A GB 1407161A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- gas
- solid
- burnt
- cooled
- 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
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 235000010269 sulphur dioxide Nutrition 0.000 title abstract 2
- 239000004291 sulphur dioxide Substances 0.000 title abstract 2
- 239000007787 solid Substances 0.000 abstract 5
- 238000002485 combustion reaction Methods 0.000 abstract 2
- VEZUQRBDRNJBJY-UHFFFAOYSA-N cyclohexanone oxime Chemical compound ON=C1CCCCC1 VEZUQRBDRNJBJY-UHFFFAOYSA-N 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 2
- 239000012452 mother liquor Substances 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/60—Isolation of sulfur dioxide from gases
-
- 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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
- C01B17/504—Preparation of sulfur dioxide by reduction of sulfur compounds of ammonium sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
- C01C1/249—Deacidifying or drying the crystals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Fertilizers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Paper (AREA)
Abstract
1407161 Sulphur dioxide; sulphuric acid CHEMIEBAU DR A ZIEREN GmbH & CO KG 12 Jan 1973 [14 Jan 1972] 1723/73 Heading C1A SO 2 is produced by burning solid (NH 4 ) 2 SO 4 at 850-1250 C. together with a fuel and an O 2 -containing gas, wherein the (NH 4 ) 2 SO 4 is being obtained by evaporating an (NH 4 ) 2 SO 4 solution by direct heat-exchange with the hot SO 2 gas from the combustion, and wherein the solution is that formed as a by-product in the synthesis of an organic compound. The (NH 4 ) 2 SO 4 solution may be evaporated down to (a) a slurry containing 20-45% by wt. H 2 O and then the slurry burnt, (b) a suspension containing 30-50% by wt. H 2 O, the solid separated from the mother liquor and the solid containing <20% by wt. H 2 O burnt and the mother liquor recycled to the evaporation step, or (c) a solid containing 10% by wt. H 2 O by atomizing the (NH 4 ) 2 SO 4 solution into the hot gas stream and then the solid burnt. The hot SO 2 gas from the combustion furnace may be cooled to 690-880 C. prior to entry into the evaporator and then the gas leaving the evaporator at a temperature of 100-250 C. cooled to 30-50 C. to condense out the H 2 O content. The cooled SO 2 gas may be contacted with H 2 SO 4 to remove NH 3 and the H 2 SO 4 added to the (NH 4 ) 2 SO 4 solution. The SO 2 may be converted into H 2 SO 4 by the contact process. The residence time of the (NH 4 ) 2 SO 4 in the furnace may be 0À2-20 sees. The initial (NH 4 ) 2 SO 4 solution may have a concentration of 32-40% by wt. and be derived from the ammoniation of the reaction mixture obtained in the conversion of cyclohexanone oxime to #-caprolactam.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2201632A DE2201632C3 (en) | 1972-01-14 | 1972-01-14 | Process for the production of a gas containing sulfur dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1407161A true GB1407161A (en) | 1975-09-24 |
Family
ID=5832973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB172373A Expired GB1407161A (en) | 1972-01-14 | 1973-01-12 | Process for the production of a sulphur dioxide-containing gas |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5129879B2 (en) |
| AT (1) | AT324357B (en) |
| BE (1) | BE793839A (en) |
| DE (1) | DE2201632C3 (en) |
| ES (1) | ES410584A1 (en) |
| FR (1) | FR2167988B1 (en) |
| GB (1) | GB1407161A (en) |
| IT (1) | IT978003B (en) |
| NL (1) | NL7300499A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190909A (en) * | 1986-05-02 | 1987-12-02 | Boc Group Plc | Treatment of waste material |
| US4853206A (en) * | 1986-05-02 | 1989-08-01 | The Boc Group Plc | Treatment of waste material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490347A (en) * | 1983-02-07 | 1984-12-25 | E. I. Du Pont De Nemours And Company | Process for sulfuric acid regeneration |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2037619B2 (en) * | 1970-07-29 | 1972-07-13 | Chemiebau Dr. A. Zieren GmbH & Co KG, 5000 Köln | PROCESS FOR CLEAVING SULFURIC ACID |
-
0
- BE BE793839D patent/BE793839A/en unknown
-
1972
- 1972-01-14 DE DE2201632A patent/DE2201632C3/en not_active Expired
-
1973
- 1973-01-03 IT IT19021/73A patent/IT978003B/en active
- 1973-01-11 AT AT21073A patent/AT324357B/en not_active IP Right Cessation
- 1973-01-12 FR FR7300981A patent/FR2167988B1/fr not_active Expired
- 1973-01-12 NL NL7300499A patent/NL7300499A/xx unknown
- 1973-01-12 GB GB172373A patent/GB1407161A/en not_active Expired
- 1973-01-12 JP JP48006542A patent/JPS5129879B2/ja not_active Expired
- 1973-01-13 ES ES410584A patent/ES410584A1/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190909A (en) * | 1986-05-02 | 1987-12-02 | Boc Group Plc | Treatment of waste material |
| US4853206A (en) * | 1986-05-02 | 1989-08-01 | The Boc Group Plc | Treatment of waste material |
| GB2190909B (en) * | 1986-05-02 | 1990-05-02 | Boc Group Plc | Treatment of waste material |
Also Published As
| Publication number | Publication date |
|---|---|
| AT324357B (en) | 1975-08-25 |
| DE2201632A1 (en) | 1973-07-26 |
| FR2167988B1 (en) | 1977-12-30 |
| DE2201632B2 (en) | 1974-12-12 |
| FR2167988A1 (en) | 1973-08-24 |
| BE793839A (en) | 1973-05-02 |
| DE2201632C3 (en) | 1978-09-14 |
| IT978003B (en) | 1974-09-20 |
| JPS5129879B2 (en) | 1976-08-27 |
| ES410584A1 (en) | 1975-12-01 |
| JPS4879791A (en) | 1973-10-25 |
| NL7300499A (en) | 1973-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |