RU2004112534A - Способ восстановления сульфата кальция - Google Patents
Способ восстановления сульфата кальция Download PDFInfo
- Publication number
- RU2004112534A RU2004112534A RU2004112534/15A RU2004112534A RU2004112534A RU 2004112534 A RU2004112534 A RU 2004112534A RU 2004112534/15 A RU2004112534/15 A RU 2004112534/15A RU 2004112534 A RU2004112534 A RU 2004112534A RU 2004112534 A RU2004112534 A RU 2004112534A
- Authority
- RU
- Russia
- Prior art keywords
- calcium sulfate
- specified
- reducing
- mgso
- auxiliary agent
- Prior art date
Links
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims 26
- 238000000034 method Methods 0.000 title claims 8
- 235000011132 calcium sulphate Nutrition 0.000 title 1
- 239000001175 calcium sulphate Substances 0.000 title 1
- 229940095672 calcium sulfate Drugs 0.000 claims 12
- 239000012752 auxiliary agent Substances 0.000 claims 4
- 238000011084 recovery Methods 0.000 claims 3
- 229940095564 anhydrous calcium sulfate Drugs 0.000 claims 2
- 239000003638 chemical reducing agent Substances 0.000 claims 1
- 229910000514 dolomite Inorganic materials 0.000 claims 1
- 239000010459 dolomite Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
- C01F11/08—Oxides or hydroxides by reduction of sulfates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/73—After-treatment of removed components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3433—Regenerating or reactivating of sorbents or filter aids other than those covered by B01J20/3408 - B01J20/3425
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- 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
- C01B17/42—Sulfides or polysulfides of magnesium, calcium, strontium, or barium
- C01B17/44—Sulfides or polysulfides of magnesium, calcium, strontium, or barium by reduction of sulfates
-
- 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
- C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
- C01B17/506—Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Claims (7)
1. Способ восстановления сульфата кальция, включающий восстановление сульфата кальция пропусканием восстанавливающего газа, содержащего СО в качестве восстановителя, отличающийся тем, что указанное восстановление проводят при смешивании сульфата кальция с вспомогательным средством, выбранным из группы, состоящей из Fe2O3, MgSO4 и их смеси.
2. Способ восстановления сульфата кальция по п.1, где указанное восстановление ведут при температуре от 900 до 1000°С.
3. Способ восстановления сульфата кальция по п.1 или 2, где указанный восстанавливающий газ содержит от 0,5 до 20 об.% СО и от 0,03 до 30 об.% CO2.
4. Способ восстановления сульфата кальция по п.1, где указанным вспомогательным средством является Fe2O3 и его количество составляет от 0,2 до 10 мас.% в расчете на массу указанного сульфата кальция в виде безводного сульфата кальция.
5. Способ восстановления сульфата кальция по п.1, где указанным вспомогательным средством является MgSO4 и его количество составляет от 10 до 50 мас.% в расчете на массу указанного сульфата кальция в виде безводного сульфата кальция.
6. Способ восстановления сульфата кальция по п.1, где указанным вспомогательным средством является MgSO4 и источником указанного MgSO4 является доломит.
7. Способ восстановления сульфата кальция по п.1, где указанный сульфат кальция гранулируют перед восстановлением.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001-294551 | 2001-09-26 | ||
| JP2001294551 | 2001-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2004112534A true RU2004112534A (ru) | 2005-04-10 |
Family
ID=19116131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2004112534/15A RU2004112534A (ru) | 2001-09-26 | 2002-09-25 | Способ восстановления сульфата кальция |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040247519A1 (ru) |
| EP (1) | EP1445238A1 (ru) |
| JP (1) | JP4260626B2 (ru) |
| KR (1) | KR20040051588A (ru) |
| BR (1) | BR0206055A (ru) |
| RU (1) | RU2004112534A (ru) |
| TW (1) | TW555688B (ru) |
| WO (1) | WO2003027019A1 (ru) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011020881A (ja) * | 2009-07-15 | 2011-02-03 | Akita Univ | 硫酸カルシウム含有材料の酸化カルシウム及び元素硫黄への転換方法、並びに、硫酸カルシウム含有材料のリサイクル方法及びリサイクルシステム |
| CN110917852B (zh) * | 2019-11-21 | 2021-05-14 | 江苏省沙钢钢铁研究院有限公司 | 脱硫灰的资源回收方法及资源回收系统 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE759979A (fr) * | 1965-02-10 | 1971-06-07 | Grillo Werke Ag | Procede d'elimination du soufre dans les gaz residuaires |
| US3607045A (en) * | 1969-10-29 | 1971-09-21 | Univ Iowa State Res Found Inc | Process for high temperature gaseous reduction of calcium sulfate |
| US3729551A (en) * | 1971-01-07 | 1973-04-24 | Cons Coal Co | Conversion of calcium sulfate to calcium oxide and elemental sulfur |
| JPS6125861Y2 (ru) * | 1980-05-12 | 1986-08-04 | ||
| JPS5761628A (en) * | 1980-09-25 | 1982-04-14 | Mitsubishi Heavy Ind Ltd | Regeneration of calcium oxide from calcium sulfate utilizing fluidized bed |
| JPS58178337U (ja) * | 1982-05-26 | 1983-11-29 | バブコツク日立株式会社 | 脱硫剤再生装置 |
| US4686090A (en) * | 1982-12-30 | 1987-08-11 | United States Steel Corporation | Desulfurizing of reducing gas stream using a recycle calcium oxide system |
| JPS6230527A (ja) * | 1985-08-01 | 1987-02-09 | Hitachi Zosen Corp | ドロマイト系脱硫剤の再生方法 |
| US5292695A (en) * | 1992-11-18 | 1994-03-08 | Synthetica Technologies, Inc. | Process for reactivating particulate adsorbents |
| US6024932A (en) * | 1993-05-11 | 2000-02-15 | Gas Research Institute | Method for the conversion of gypsum to elemental sulfur |
-
2002
- 2002-09-25 US US10/490,705 patent/US20040247519A1/en not_active Abandoned
- 2002-09-25 KR KR10-2004-7004033A patent/KR20040051588A/ko not_active Withdrawn
- 2002-09-25 WO PCT/JP2002/009830 patent/WO2003027019A1/ja not_active Ceased
- 2002-09-25 RU RU2004112534/15A patent/RU2004112534A/ru not_active Application Discontinuation
- 2002-09-25 TW TW091122055A patent/TW555688B/zh not_active IP Right Cessation
- 2002-09-25 BR BR0206055-8A patent/BR0206055A/pt not_active Application Discontinuation
- 2002-09-25 JP JP2003530613A patent/JP4260626B2/ja not_active Expired - Fee Related
- 2002-09-25 EP EP02775227A patent/EP1445238A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP4260626B2 (ja) | 2009-04-30 |
| EP1445238A1 (en) | 2004-08-11 |
| JPWO2003027019A1 (ja) | 2005-01-06 |
| BR0206055A (pt) | 2003-10-07 |
| US20040247519A1 (en) | 2004-12-09 |
| WO2003027019A1 (en) | 2003-04-03 |
| KR20040051588A (ko) | 2004-06-18 |
| TW555688B (en) | 2003-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA93 | Acknowledgement of application withdrawn (no request for examination) |
Effective date: 20060210 |