GB1014945A - Recovery of ammonia and sulphur dioxide from sulphuric acid containing ammonium sulphate or bisulphate - Google Patents
Recovery of ammonia and sulphur dioxide from sulphuric acid containing ammonium sulphate or bisulphateInfo
- Publication number
- GB1014945A GB1014945A GB44438/63A GB4443863A GB1014945A GB 1014945 A GB1014945 A GB 1014945A GB 44438/63 A GB44438/63 A GB 44438/63A GB 4443863 A GB4443863 A GB 4443863A GB 1014945 A GB1014945 A GB 1014945A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- sulphuric acid
- ammonia
- sulphur dioxide
- bisulphate
- 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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/58—Recovery of sulfur dioxide from acid tar or the like or from any waste sulfuric acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/026—Preparation of ammonia from inorganic compounds
- C01C1/028—Preparation of ammonia from inorganic compounds from ammonium sulfate or sulfite
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/10—Separation of ammonia from ammonia liquors, e.g. gas liquors
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Treating Waste Gases (AREA)
- Incineration Of Waste (AREA)
Abstract
Ammonia and sulphur dioxide are recovered from aqueous sulphuric acid containing ammonium sulphate or bisulphate by heating the solution to 400 DEG -600 DEG C. in a reducing atmosphere. The solution used may be a by-product of the reaction of sulphuric acid with a cyanohydrin, e.g. acetone or ethylene cyanohydrin, to form acrylic or methacrylic acid derivatives and contains at least 50% by weight of free sulphuric acid, while the ammonia provides 5-15% of the weight of the solution. The solution is introduced in a finely dispersed form produced by spraying into the reducing atmosphere, which may comprise the combustion products of a gas or oil burner and may contain not more than 3%, preferably 2%, of free oxygen. The solution may be first combined with the combustion products of a gas or oil burner and then sprayed on to or passed through a bed of a heated solid material, e.g. coke, fire brick, aluminium oxide, or ceramic, at 450 DEG -520 DEG C. The solution may contain organic impurities, e.g. acetone disulphonic acid, which are capable of providing the reducing atmosphere. The sulphur dioxide may be oxidized back to sulphur trioxide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER33886A DE1220398B (en) | 1962-11-15 | 1962-11-15 | Production of ammonia and sulfur dioxide from waste sulfuric acid containing ammonium bisulfate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1014945A true GB1014945A (en) | 1965-12-31 |
Family
ID=7404201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB44438/63A Expired GB1014945A (en) | 1962-11-15 | 1963-11-11 | Recovery of ammonia and sulphur dioxide from sulphuric acid containing ammonium sulphate or bisulphate |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1220398B (en) |
| FR (1) | FR1375390A (en) |
| GB (1) | GB1014945A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201250A1 (en) * | 1972-09-22 | 1974-04-26 | Inst Francais Du Petrole | Sulphur dioxide and ammonia prodn from ammonium sulphate - by contact-ing mixture with granular solid with countercurrent hot reducing gas stream |
| US4081442A (en) * | 1976-02-03 | 1978-03-28 | Stamicarbon, B.V. | Process for the recovery of ε-caprolactam from a reaction mixture of ε-caprolactam and sulphuric acid |
| DE2818070A1 (en) * | 1977-04-25 | 1978-11-02 | Nittetsu Kakoki Kk | PROCESS FOR THE RECOVERY OF AMMONIA AND SULFUR DIOXIDE FROM CONTAMINATED AMMONIA SALT OF SULFURIC ACID |
| CN109081685A (en) * | 2018-09-13 | 2018-12-25 | 南京鑫达晶体材料科技有限公司 | A kind of aluminium oxide ceramics and preparation method thereof |
| CN112174165A (en) * | 2019-07-03 | 2021-01-05 | 强方投顾股份有限公司 | Semiconductor grade ammonia water and sulfuric acid recovery and circulation manufacturing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK98191A (en) * | 1991-05-24 | 1992-11-25 | Haldor Topsoe As | PROCEDURE FOR THE REGENERATION OF PURIFIC SULFURIC ACID |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE861552C (en) * | 1937-04-27 | 1953-01-05 | Metallgesellschaft Ag | Process and device for converting dilute waste sulfuric acid into highly concentrated acid |
-
1962
- 1962-11-15 DE DER33886A patent/DE1220398B/en active Pending
-
1963
- 1963-11-11 GB GB44438/63A patent/GB1014945A/en not_active Expired
- 1963-11-15 FR FR953904A patent/FR1375390A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2201250A1 (en) * | 1972-09-22 | 1974-04-26 | Inst Francais Du Petrole | Sulphur dioxide and ammonia prodn from ammonium sulphate - by contact-ing mixture with granular solid with countercurrent hot reducing gas stream |
| US4081442A (en) * | 1976-02-03 | 1978-03-28 | Stamicarbon, B.V. | Process for the recovery of ε-caprolactam from a reaction mixture of ε-caprolactam and sulphuric acid |
| DE2818070A1 (en) * | 1977-04-25 | 1978-11-02 | Nittetsu Kakoki Kk | PROCESS FOR THE RECOVERY OF AMMONIA AND SULFUR DIOXIDE FROM CONTAMINATED AMMONIA SALT OF SULFURIC ACID |
| FR2388765A1 (en) * | 1977-04-25 | 1978-11-24 | Stamicarbon | PROCESS FOR OBTAINING AMMONIA AND BIOXIDE OF SULFUR FROM SULFURIC ACID AMMONIUM SALT |
| CN109081685A (en) * | 2018-09-13 | 2018-12-25 | 南京鑫达晶体材料科技有限公司 | A kind of aluminium oxide ceramics and preparation method thereof |
| CN109081685B (en) * | 2018-09-13 | 2021-09-24 | 南京鑫达晶体材料科技有限公司 | Alumina ceramic and preparation method thereof |
| CN112174165A (en) * | 2019-07-03 | 2021-01-05 | 强方投顾股份有限公司 | Semiconductor grade ammonia water and sulfuric acid recovery and circulation manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1375390A (en) | 1964-10-16 |
| DE1220398B (en) | 1966-07-07 |
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