CA2203510A1 - Co-production of potassium sulfate, sodium sulfate and sodium chloride - Google Patents
Co-production of potassium sulfate, sodium sulfate and sodium chlorideInfo
- Publication number
- CA2203510A1 CA2203510A1 CA 2203510 CA2203510A CA2203510A1 CA 2203510 A1 CA2203510 A1 CA 2203510A1 CA 2203510 CA2203510 CA 2203510 CA 2203510 A CA2203510 A CA 2203510A CA 2203510 A1 CA2203510 A1 CA 2203510A1
- Authority
- CA
- Canada
- Prior art keywords
- stage
- potash
- sulfate
- sodium
- glaserite
- 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.)
- Granted
Links
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title abstract 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 title abstract 5
- 229910052938 sodium sulfate Inorganic materials 0.000 title abstract 5
- 235000011152 sodium sulphate Nutrition 0.000 title abstract 5
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 title abstract 4
- 229910052939 potassium sulfate Inorganic materials 0.000 title abstract 4
- 235000011151 potassium sulphates Nutrition 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 239000011780 sodium chloride Substances 0.000 title abstract 3
- 235000002639 sodium chloride Nutrition 0.000 title abstract 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 5
- 229940072033 potash Drugs 0.000 abstract 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 5
- 235000015320 potassium carbonate Nutrition 0.000 abstract 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000012267 brine Substances 0.000 abstract 2
- 238000000354 decomposition reaction Methods 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 239000012452 mother liquor Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
Landscapes
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Enzymes And Modification Thereof (AREA)
Abstract
A process for producing potassium sulfate, sodium sulfate, and sodium chloride from potash and a sodium sulfate/water source, wherein potash (12), sodium sulfate (14), slurry (34) from the recovery stage and brine (18) from the gaserite decomposition stage (20) are introduced to a first stage (10), wherein the sodium sulfate and potash dissolve, such that glaserite is precipitated. The slurry is concentrated and delivered (22) to the glaserite decomposition stage (20) along with water (24). Potash is introduced directly (8) and/or via stream (22) by introducing excess potash into stage (10). The potassium sulfate solids are separated, washed and dried to give a potassium sulfate product (27). The mother liquor (18) removed from the reactor is returned to the glaserite production stage (10). The brine (26) produced in the production of glaserite (10) is evaporated in an evaporative crystallizer (28). The removal of water (30) produces a supersaturation of sodium chloride, which precipitates out of solution.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/348,118 US5552126A (en) | 1994-11-28 | 1994-11-28 | Co-production of potassium sulfate, sodium sulfate and sodium chloride |
| US08/348,118 | 1994-11-28 | ||
| PCT/US1995/014961 WO1996016900A1 (en) | 1994-11-28 | 1995-11-13 | Co-production of potassium sulfate, sodium sulfate and sodium chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2203510A1 true CA2203510A1 (en) | 1996-06-06 |
| CA2203510C CA2203510C (en) | 2000-07-18 |
Family
ID=29422791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2203510 Expired - Lifetime CA2203510C (en) | 1994-11-28 | 1995-11-13 | Co-production of potassium sulfate, sodium sulfate and sodium chloride |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2203510C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422885A (en) * | 2020-04-21 | 2020-07-17 | 山西焦化股份有限公司 | Mixed salt based on coke oven flue gas desulfurization ash, preparation method and application |
| CN111422887A (en) * | 2020-03-30 | 2020-07-17 | 中国中轻国际工程有限公司 | Process for purifying sodium sulfate and sodium carbonate from alkali furnace soda ash |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104326488A (en) * | 2014-10-16 | 2015-02-04 | 中国中轻国际工程有限公司 | Sodium sulfate and sodium chloride production process |
-
1995
- 1995-11-13 CA CA 2203510 patent/CA2203510C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422887A (en) * | 2020-03-30 | 2020-07-17 | 中国中轻国际工程有限公司 | Process for purifying sodium sulfate and sodium carbonate from alkali furnace soda ash |
| CN111422885A (en) * | 2020-04-21 | 2020-07-17 | 山西焦化股份有限公司 | Mixed salt based on coke oven flue gas desulfurization ash, preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2203510C (en) | 2000-07-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20151113 |