CH677921A5 - - Google Patents
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- Publication number
- CH677921A5 CH677921A5 CH356788A CH356788A CH677921A5 CH 677921 A5 CH677921 A5 CH 677921A5 CH 356788 A CH356788 A CH 356788A CH 356788 A CH356788 A CH 356788A CH 677921 A5 CH677921 A5 CH 677921A5
- Authority
- CH
- Switzerland
- Prior art keywords
- sulfuric acid
- concentration
- concentrated
- weight
- acid solution
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 128
- 238000000034 method Methods 0.000 claims description 34
- 150000003839 salts Chemical class 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 238000004094 preconcentration Methods 0.000 claims description 18
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 230000029087 digestion Effects 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 229910000358 iron sulfate Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XBDUTCVQJHJTQZ-UHFFFAOYSA-L iron(2+) sulfate monohydrate Chemical compound O.[Fe+2].[O-]S([O-])(=O)=O XBDUTCVQJHJTQZ-UHFFFAOYSA-L 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- IYVLHQRADFNKAU-UHFFFAOYSA-N oxygen(2-);titanium(4+);hydrate Chemical compound O.[O-2].[O-2].[Ti+4] IYVLHQRADFNKAU-UHFFFAOYSA-N 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- 150000003681 vanadium Chemical class 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
- C22B34/124—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors
- C22B34/125—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors containing a sulfur ion as active agent
-
- 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
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid
-
- 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
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
- C22B34/1259—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching treatment or purification of titanium containing solutions or liquors or slurries
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH356788A CH677921A5 (en, 2012) | 1988-09-26 | 1988-09-26 | |
| DE19893918794 DE3918794C2 (de) | 1988-09-26 | 1989-06-08 | Verfahren zum Gewinnen von höherkonzentrierten Schwefelsäurelösungen mit geringerem Metallsalzgehalt durch Aufarbeiten von verdünnten eisen(II)-sulfathaltigen Schwefelsäurelösungen aus der Titandioxidproduktion und Verwendung der hochkonzentrierten Schwefelsäure, erhalten nach diesem Verfahren |
| DE58908649T DE58908649D1 (de) | 1988-09-26 | 1989-09-18 | Verfahren zur Gewinnung höherkonzentrierter Schwefelsäurelösungen durch Aufbereitung verdünnter sulfathaltiger Schwefelsäurelösungen. |
| EP89117224A EP0363683B1 (de) | 1988-09-26 | 1989-09-18 | Verfahren zur Gewinnung höherkonzentrierter Schwefelsäurelösungen durch Aufbereitung verdünnter sulfathaltiger Schwefelsäurelösungen |
| ES89117224T ES2064409T3 (es) | 1988-09-26 | 1989-09-18 | Procedimiento para la obtencion de disoluciones de acido sulfurico altamente concentradas mediante elaboracion de disoluciones diluidas de acido sulfurico que contienen sulfato. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH356788A CH677921A5 (en, 2012) | 1988-09-26 | 1988-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH677921A5 true CH677921A5 (en, 2012) | 1991-07-15 |
Family
ID=4258787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH356788A CH677921A5 (en, 2012) | 1988-09-26 | 1988-09-26 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0363683B1 (en, 2012) |
| CH (1) | CH677921A5 (en, 2012) |
| DE (2) | DE3918794C2 (en, 2012) |
| ES (1) | ES2064409T3 (en, 2012) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10024457A1 (de) * | 2000-05-18 | 2001-11-29 | Sachtleben Chemie Gmbh | Verfahren zur Konzentration des Schwefelsäure-Gehalts von bei der Produktion von Titandioxid anfallender Dünnsäure |
| CN104876194A (zh) * | 2015-06-02 | 2015-09-02 | 南京鹳山化工科技有限公司 | 利用含硫酸盐稀硫酸回收硫酸和硫酸盐的方法 |
| CN109231399A (zh) * | 2018-08-28 | 2019-01-18 | 杭州轩辉环境设备有限公司 | 一种提取硫酸盐的工艺方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1129140B (de) * | 1960-08-04 | 1962-05-10 | Metallgesellschaft Ag | Verfahren zum Aufarbeiten von Abfallschwefelsaeure der Titanpigmentherstellung |
| NL273476A (en, 2012) * | 1961-01-26 | 1900-01-01 | ||
| DE2618122C2 (de) * | 1976-04-26 | 1984-10-04 | Kronos Titan-Gesellschaft Mbh, 5090 Leverkusen | Verfahren zur Aufarbeitung verdünnter eisen(II)-sulfathaltiger Schwefelsäurelösungen |
| DE2630196A1 (de) * | 1976-07-05 | 1978-01-19 | Bayer Ag | Verfahren zur herstellung von schwefelsaeure aus abfallsaeure und eisensulfat |
| DE3327769A1 (de) * | 1983-08-02 | 1985-02-14 | Bayer Ag, 5090 Leverkusen | Verfahren zur aufarbeitung von duennsaeuren |
| DE3537941A1 (de) * | 1985-10-25 | 1987-04-30 | Bayer Ag | Aus duennsaeure gewonnene metallsulfatsuspension, verfahren zu ihrer herstellung sowie deren verwendung |
-
1988
- 1988-09-26 CH CH356788A patent/CH677921A5/de not_active IP Right Cessation
-
1989
- 1989-06-08 DE DE19893918794 patent/DE3918794C2/de not_active Expired - Fee Related
- 1989-09-18 EP EP89117224A patent/EP0363683B1/de not_active Expired - Lifetime
- 1989-09-18 DE DE58908649T patent/DE58908649D1/de not_active Expired - Fee Related
- 1989-09-18 ES ES89117224T patent/ES2064409T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3918794C2 (de) | 1994-01-20 |
| DE3918794A1 (de) | 1990-03-29 |
| DE58908649D1 (de) | 1994-12-22 |
| EP0363683B1 (de) | 1994-11-17 |
| ES2064409T3 (es) | 1995-02-01 |
| EP0363683A1 (de) | 1990-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |