FR1521740A - Process for preparing sodium sulphide from a product containing sodium sulphate, particularly for the regeneration of waste liquors from pulp digestion - Google Patents
Process for preparing sodium sulphide from a product containing sodium sulphate, particularly for the regeneration of waste liquors from pulp digestionInfo
- Publication number
- FR1521740A FR1521740A FR103790A FR103790A FR1521740A FR 1521740 A FR1521740 A FR 1521740A FR 103790 A FR103790 A FR 103790A FR 103790 A FR103790 A FR 103790A FR 1521740 A FR1521740 A FR 1521740A
- Authority
- FR
- France
- Prior art keywords
- regeneration
- product containing
- waste liquors
- sodium sulphate
- pulp digestion
- 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
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 title 2
- 230000029087 digestion Effects 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 230000008929 regeneration Effects 0.000 title 1
- 238000011069 regeneration method Methods 0.000 title 1
- 229910052938 sodium sulfate Inorganic materials 0.000 title 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 title 1
- 235000011152 sodium sulphate Nutrition 0.000 title 1
- 239000002699 waste material Substances 0.000 title 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
- C01B17/22—Alkali metal sulfides or polysulfides
- C01B17/24—Preparation by reduction
- C01B17/28—Preparation by reduction with reducing gases
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR103790A FR1521740A (en) | 1967-04-21 | 1967-04-21 | Process for preparing sodium sulphide from a product containing sodium sulphate, particularly for the regeneration of waste liquors from pulp digestion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR103790A FR1521740A (en) | 1967-04-21 | 1967-04-21 | Process for preparing sodium sulphide from a product containing sodium sulphate, particularly for the regeneration of waste liquors from pulp digestion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1521740A true FR1521740A (en) | 1968-04-19 |
Family
ID=8629445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR103790A Expired FR1521740A (en) | 1967-04-21 | 1967-04-21 | Process for preparing sodium sulphide from a product containing sodium sulphate, particularly for the regeneration of waste liquors from pulp digestion |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1521740A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849636A (en) * | 2022-12-29 | 2023-03-28 | 山东京博生物科技有限公司 | Comprehensive treatment method for sulfur-containing wastewater and aluminum-containing wastewater |
| CN118289716A (en) * | 2024-04-03 | 2024-07-05 | 西安建筑科技大学 | A method and device for preparing sodium sulfide powder by reducing sodium sulfate with gas |
| CN118929994A (en) * | 2024-10-11 | 2024-11-12 | 赣州有色冶金研究所有限公司 | A method for resource treatment of sodium sulfate wastewater from tungsten smelting |
-
1967
- 1967-04-21 FR FR103790A patent/FR1521740A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849636A (en) * | 2022-12-29 | 2023-03-28 | 山东京博生物科技有限公司 | Comprehensive treatment method for sulfur-containing wastewater and aluminum-containing wastewater |
| CN118289716A (en) * | 2024-04-03 | 2024-07-05 | 西安建筑科技大学 | A method and device for preparing sodium sulfide powder by reducing sodium sulfate with gas |
| CN118929994A (en) * | 2024-10-11 | 2024-11-12 | 赣州有色冶金研究所有限公司 | A method for resource treatment of sodium sulfate wastewater from tungsten smelting |
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