RU2013153874A - METHOD FOR PRODUCING SODIUM SULPHATE - Google Patents
METHOD FOR PRODUCING SODIUM SULPHATE Download PDFInfo
- Publication number
- RU2013153874A RU2013153874A RU2013153874/05A RU2013153874A RU2013153874A RU 2013153874 A RU2013153874 A RU 2013153874A RU 2013153874/05 A RU2013153874/05 A RU 2013153874/05A RU 2013153874 A RU2013153874 A RU 2013153874A RU 2013153874 A RU2013153874 A RU 2013153874A
- Authority
- RU
- Russia
- Prior art keywords
- sodium
- nitrite
- urea
- sulfuric acid
- molar ratio
- Prior art date
Links
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 title claims abstract 6
- 229910052938 sodium sulfate Inorganic materials 0.000 title claims abstract 5
- 235000011152 sodium sulphate Nutrition 0.000 title claims abstract 5
- 238000004519 manufacturing process Methods 0.000 title 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract 12
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract 12
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract 8
- 235000013877 carbamide Nutrition 0.000 claims abstract 6
- 239000004202 carbamide Substances 0.000 claims abstract 6
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract 6
- 239000004317 sodium nitrate Substances 0.000 claims abstract 6
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract 6
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 claims abstract 4
- 229910000342 sodium bisulfate Inorganic materials 0.000 claims abstract 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims abstract 2
- 239000012535 impurity Substances 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 2
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Detergent Compositions (AREA)
Abstract
Способ получения сульфата натрия, отличающийся тем, что в водный раствор сульфата натрия, содержащий примеси нитрата и нитрита натрия, добавляют карбамид и бисульфат натрия при мольном соотношении карбамид:бисульфат натрия:сумма нитрата и нитрита натрия 0,5:1,0:1,0 или серную кислоту при мольном соотношении карбамид:серная кислота:сумма нитрата и нитрита натрия 0,5:0,5:1,0, раствор доводят до кипения, воду выпаривают до температуры реакционной массы 125°С, остаток сушат при температуре 140-200°С в течении не менее 15 мин.A method of producing sodium sulfate, characterized in that in the aqueous sodium sulfate solution containing impurities of sodium nitrate and sodium nitrite, carbamide and sodium bisulfate are added at a molar ratio of urea: sodium bisulfate: the amount of sodium nitrate and sodium nitrite is 0.5: 1.0: 1, 0 or sulfuric acid with a molar ratio of urea: sulfuric acid: the sum of sodium nitrate and nitrite 0.5: 0.5: 1.0, the solution is brought to a boil, the water is evaporated to a temperature of the reaction mass of 125 ° C, the residue is dried at a temperature of 140- 200 ° C for at least 15 minutes
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2013153874/05A RU2556927C2 (en) | 2013-12-04 | 2013-12-04 | Method of producing sodium sulphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2013153874/05A RU2556927C2 (en) | 2013-12-04 | 2013-12-04 | Method of producing sodium sulphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2013153874A true RU2013153874A (en) | 2015-06-10 |
| RU2556927C2 RU2556927C2 (en) | 2015-07-20 |
Family
ID=53285248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2013153874/05A RU2556927C2 (en) | 2013-12-04 | 2013-12-04 | Method of producing sodium sulphate |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2556927C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2610076C1 (en) * | 2015-11-10 | 2017-02-07 | Федеральное государственное унитарное предприятие "Российский научный центр "Прикладная химия" | Method of extracting sodium sulphate and metal nitrates |
| RU2633593C1 (en) * | 2016-04-28 | 2017-10-13 | Акционерное общество "Салаватский химический завод" | Method of cleaning sodium sulphate from impurities of nitrate and/or sodium nitrite |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1495296A1 (en) * | 1987-06-26 | 1989-07-23 | Предприятие П/Я А-3844 | Method of extracting sodium sulfate |
| SU1495297A1 (en) * | 1987-06-26 | 1989-07-23 | Институт общей и неорганической химии им.Н.С.Курнакова | Method of extracting sodium sulfate |
| SU1662932A1 (en) * | 1988-04-05 | 1991-07-15 | Уральский лесотехнический институт им.Ленинского комсомола | Method of cleaning sodium sulfate |
-
2013
- 2013-12-04 RU RU2013153874/05A patent/RU2556927C2/en active
Also Published As
| Publication number | Publication date |
|---|---|
| RU2556927C2 (en) | 2015-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC43 | Official registration of the transfer of the exclusive right without contract for inventions |
Effective date: 20220425 |