GB770172A - Process and apparatus for the preparation of ammonium sulphate - Google Patents
Process and apparatus for the preparation of ammonium sulphateInfo
- Publication number
- GB770172A GB770172A GB895/54A GB89554A GB770172A GB 770172 A GB770172 A GB 770172A GB 895/54 A GB895/54 A GB 895/54A GB 89554 A GB89554 A GB 89554A GB 770172 A GB770172 A GB 770172A
- Authority
- GB
- United Kingdom
- Prior art keywords
- saturator
- steam
- condenser
- liquor
- heated
- 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
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
- C01C1/242—Preparation from ammonia and sulfuric acid or sulfur trioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
<PICT:0770172/III/1> In a process of preparing ammonium sulphate from NH3 or a gas mixture consisting of NH3 and steam and H2SO4 in a saturator by removing the crystals formed from the saturator as a crystal paste, separating the crystals from the mother liquor and washing the crystals in a centrifugal or other separator, and returning the resulting diluted mother liquor to the saturator after heating, the diluted mother liquor is heated in a direct contact condenser by the steam escaping from the saturator. The washing water may also be heated in a direct contact condenser by escaping steam. A crystal paste is withdrawn from saturator 1 containing a saturated solution of ammonium sulphate containing free H2SO4 to which a mixture of NH3 and steam and sulphuric acid are continuously supplied through 1a, 1b respectively. Mother liquor separated from the crystal paste in centrifuges (not shown) and washing water is sprayed by pump 17 through pipe 12 into condenser 11, where steam aspirated from saturator chimney 2 through pipe 10 is condensed and heats the liquor from say 75 DEG to 95 DEG C. All crystal seeds remaining in the liquor are dissolved by this treatment and the heated liquor passes through 13 to tank 14 and may be continuously circulated by pump 15 to condenser 11 through riser 13a or pumped through pipe 16 and spray 19 into the vapour chamber 20 of the saturator, with consequent absorption of unabsorbed NH3 in the chamber to reduce loss. Owing to the absence of seeds in the recirculated liquor coarser ammonium sulphate crystals are formed in the saturator. Cold water at say 15 DEG C. is sprayed through 5 into condenser 4 and is heated to say 95 DEG C. by steam aspirated from chimney 2 through pipe 3. Hot water passes through 6 to tank 7 and may be continuously circulated by pump 8 through riser 6a to condenser 4. Hot water is withdrawn at 9. The continuous circulation of liquid to the condensers through risers 6a, 13a is optional.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL770172X | 1953-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB770172A true GB770172A (en) | 1957-03-20 |
Family
ID=19828002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB895/54A Expired GB770172A (en) | 1953-01-14 | 1954-01-12 | Process and apparatus for the preparation of ammonium sulphate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB770172A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115300931A (en) * | 2022-10-10 | 2022-11-08 | 山东宏旭化学股份有限公司 | Waste water utilization device in ammonium sulfate production and use method thereof |
| CN115520879A (en) * | 2021-06-24 | 2022-12-27 | 中国石油化工股份有限公司 | Method and device for continuously preparing ammonium sulfate granules by using heterogeneous crystal seeds |
-
1954
- 1954-01-12 GB GB895/54A patent/GB770172A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115520879A (en) * | 2021-06-24 | 2022-12-27 | 中国石油化工股份有限公司 | Method and device for continuously preparing ammonium sulfate granules by using heterogeneous crystal seeds |
| CN115520879B (en) * | 2021-06-24 | 2024-03-26 | 中国石油化工股份有限公司 | Method and device for continuously preparing granular ammonium sulfate by heterogeneous seed crystal |
| CN115300931A (en) * | 2022-10-10 | 2022-11-08 | 山东宏旭化学股份有限公司 | Waste water utilization device in ammonium sulfate production and use method thereof |
| CN115300931B (en) * | 2022-10-10 | 2022-12-13 | 山东宏旭化学股份有限公司 | Waste water utilization device in ammonium sulfate production and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU11248A1 (en) | Anthracene cleaning method | |
| GB361820A (en) | Manufacture of aqueous solutions of silk fibroin | |
| GB680322A (en) | Improvements in or relating to a method of and apparatus for pickling of iron and steel materials | |
| GB623446A (en) | Improvements in and relating to processes and apparatus for the regeneration of spent iron and steel acid pickle liquors | |
| GB700375A (en) | Process for the manufacture of phosphoric acid and apparatus suitable for carrying out the process | |
| US2141773A (en) | Recovery of fluorine compounds from water vapor containing volatile fluorine compounds | |
| GB770172A (en) | Process and apparatus for the preparation of ammonium sulphate | |
| GB655084A (en) | Method and apparatus for preparing a solution of a single constituent from a solution containing a plurality of dissolved substances | |
| GB956650A (en) | Improvements in or relating to the production of ammonium hydrogen fluoride | |
| GB912772A (en) | Improvements in heat exchange processes | |
| GB588820A (en) | Method and apparatus for purifying vapor from an evaporator | |
| GB596086A (en) | Improved process for the recovery of chemical products from viscose rayon spinning baths | |
| GB653325A (en) | Improvements in or relating to the production of ammonium sulphate and the recovery of pyridine | |
| GB650341A (en) | Method for the production of amido sulphonic acid | |
| SU51306A1 (en) | Sodium hydrosulfite dehydration method | |
| GB379313A (en) | Improvements in or relating to the purification of sulphur | |
| SU117372A1 (en) | Method for producing boric acid from raw datolite ores | |
| GB441586A (en) | Process of producing crystallized ammonium nitrate with utilization of the reaction heat for the evaporation of water | |
| US2196843A (en) | Process of recovering carbon disulphide in the manufacture of artificial silk | |
| SU484184A1 (en) | The method of producing ammonium silicofluoride | |
| SU10927A1 (en) | The method of obtaining acetic anhydride | |
| GB145038A (en) | An improved process for transforming ammonia into a salt for use as a fertilizer | |
| SU52052A1 (en) | The method of obtaining sodium hydrosulfite | |
| SU129645A1 (en) | Nitric acid concentration method | |
| US1343715A (en) | Alfred guyot |