DE2717303C2 - Verfahren zur Wiedergewinnung von Metallen, insbesondere Vanadium, aus dem bei der Verbrennung von Öl anfallenden Ruß - Google Patents
Verfahren zur Wiedergewinnung von Metallen, insbesondere Vanadium, aus dem bei der Verbrennung von Öl anfallenden RußInfo
- Publication number
- DE2717303C2 DE2717303C2 DE2717303A DE2717303A DE2717303C2 DE 2717303 C2 DE2717303 C2 DE 2717303C2 DE 2717303 A DE2717303 A DE 2717303A DE 2717303 A DE2717303 A DE 2717303A DE 2717303 C2 DE2717303 C2 DE 2717303C2
- Authority
- DE
- Germany
- Prior art keywords
- soot
- solution
- combustion
- leaching
- vanadium
- 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
- 239000004071 soot Substances 0.000 title claims description 37
- 229910052720 vanadium Inorganic materials 0.000 title claims description 29
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims description 29
- 238000002485 combustion reaction Methods 0.000 title claims description 23
- 229910052751 metal Inorganic materials 0.000 title claims description 21
- 239000002184 metal Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 20
- 150000002739 metals Chemical class 0.000 title claims description 14
- 238000011084 recovery Methods 0.000 title description 3
- 239000000243 solution Substances 0.000 claims description 28
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 27
- 238000002386 leaching Methods 0.000 claims description 19
- 239000001117 sulphuric acid Substances 0.000 claims description 15
- 235000011149 sulphuric acid Nutrition 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- 229910052742 iron Inorganic materials 0.000 description 15
- 239000003921 oil Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000008346 aqueous phase Substances 0.000 description 8
- 239000003350 kerosene Substances 0.000 description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 6
- 239000002956 ash Substances 0.000 description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 239000012074 organic phase Substances 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 238000000622 liquid--liquid extraction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- -1 5 to 20% vanadium Chemical class 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- SEGLCEQVOFDUPX-UHFFFAOYSA-N di-(2-ethylhexyl)phosphoric acid Chemical compound CCCCC(CC)COP(O)(=O)OCC(CC)CCCC SEGLCEQVOFDUPX-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HLQQMPGKASWZPH-UHFFFAOYSA-N diethyl hexyl phosphate Chemical compound CCCCCCOP(=O)(OCC)OCC HLQQMPGKASWZPH-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 229910052935 jarosite Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G31/00—Compounds of vanadium
- C01G31/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G31/00—Compounds of vanadium
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
- C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
- C22B3/3846—Phosphoric acid, e.g. (O)P(OH)3
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/40—Mixtures
- C22B3/408—Mixtures using a mixture of phosphorus-based acid derivatives of different types
-
- 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
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7604527A SE399280B (sv) | 1976-04-20 | 1976-04-20 | Forfarande for att utvinna metaller, sasom vanadin, ur sot fran forbrenning av olja |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2717303A1 DE2717303A1 (de) | 1977-11-03 |
| DE2717303C2 true DE2717303C2 (de) | 1987-01-15 |
Family
ID=20327628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2717303A Expired DE2717303C2 (de) | 1976-04-20 | 1977-04-19 | Verfahren zur Wiedergewinnung von Metallen, insbesondere Vanadium, aus dem bei der Verbrennung von Öl anfallenden Ruß |
Country Status (9)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3521092A1 (de) * | 1984-06-13 | 1985-12-19 | VA.NI.M. S.r.l., Novara | Verfahren zur trennung von metallverbindungen durch reduktion |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1108866A (en) * | 1978-04-04 | 1981-09-15 | David Krofchak | Process for the treatment of incinerated sewage sludge ash |
| FR2432051A1 (fr) * | 1978-07-27 | 1980-02-22 | Inst Francais Du Petrole | Procede permettant la recuperation d'elements metalliques contenus dans des produits carbones |
| DE2944916A1 (de) * | 1979-11-07 | 1981-05-21 | Hoechst Ag, 6000 Frankfurt | Verfahren zur abtrennung von metallen aus russ |
| FI63599C (fi) * | 1981-10-13 | 1983-07-11 | Outokumpu Oy | Saett att aotervinna vaerdemetaller fraon katalysatorer anvaenda foer avsvavling av raoolja |
| US4443415A (en) * | 1982-06-22 | 1984-04-17 | Amax Inc. | Recovery of V2 O5 and nickel values from petroleum coke |
| IT1196514B (it) * | 1986-07-17 | 1988-11-16 | Ente Minerario Siciliano | Procedimento di recupero del vanadio da residui della combustione di frazioni del petrolio |
| US5277795A (en) * | 1989-06-13 | 1994-01-11 | Thornhill Denis H | Process and apparatus for recovering heavy metal from carbonaceous material |
| EP0606669A1 (en) * | 1993-01-14 | 1994-07-20 | Shell Internationale Researchmaatschappij B.V. | Carbon burn-off process |
| CA2117155C (en) * | 1993-03-15 | 2003-12-02 | Michael R. Woolery | Separation and recovery of metal values from natural bitumen ash |
| NL2004740C2 (en) * | 2010-05-18 | 2011-11-22 | Greenshores Patent B V | Process for preparing vanadium pentoxide. |
| DE102011014221A1 (de) * | 2011-03-17 | 2012-09-20 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Verfahren zur Gewinnung von Schwermetallen aus Rußwasser |
| WO2019090759A1 (zh) * | 2017-11-13 | 2019-05-16 | 中国恩菲工程技术有限公司 | 湿法冶炼含铁溶液中除铁的方法及装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2920936A (en) | 1957-05-14 | 1960-01-12 | Texaco Inc | Recovery of heavy metals from hydrocarbons |
| DE2317698A1 (de) | 1972-04-10 | 1973-10-18 | Ecolaire Inc | Oelrussfoerdersystem |
| DE2118022C3 (de) | 1971-04-14 | 1973-12-13 | Laboratoire Belge De L'industrie Electrique (Laborelec), Linkebeek (Belgien) | Verfahren zur Gewinnung von Vanadiumpentoxid, vorzugsweise aus kohlenstoffhaltigen Verbrennungsruck standen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1570170A (en) * | 1924-06-25 | 1926-01-19 | Thomas E Scofield | Process for recovering vanadium from petroleum hydrocarbons |
| US2211119A (en) * | 1937-07-17 | 1940-08-13 | Chemical Foundation Inc | Method of recovery of vanadium from acid solutions |
| US3416882A (en) * | 1965-08-25 | 1968-12-17 | Whigham William | Production of vanadium values from crude oil |
| FR1602405A (US20110009641A1-20110113-C00273.png) * | 1968-06-11 | 1970-11-23 | ||
| US3700415A (en) * | 1970-02-18 | 1972-10-24 | Kerr Mc Gee Chem Corp | Vanadium recovery from wet process phosphoric acid using neutral organophosphorus extractants |
| US3966569A (en) * | 1974-01-28 | 1976-06-29 | Mx Processor Reinhardt & Co. Ab | Method of recovering metal from metalliferous waste |
| US3975495A (en) * | 1974-05-24 | 1976-08-17 | Kerr-Mcgee Chemical Corporation | Metals recovery from hydrochloric acid solutions |
-
1976
- 1976-04-20 SE SE7604527A patent/SE399280B/xx not_active IP Right Cessation
-
1977
- 1977-04-06 GB GB1460677A patent/GB1522459A/en not_active Expired
- 1977-04-07 US US05/785,536 patent/US4100251A/en not_active Expired - Lifetime
- 1977-04-15 CA CA276,288A patent/CA1091040A/en not_active Expired
- 1977-04-18 NL NL7704204A patent/NL7704204A/xx not_active Application Discontinuation
- 1977-04-19 FR FR7711722A patent/FR2348979A1/fr active Granted
- 1977-04-19 DE DE2717303A patent/DE2717303C2/de not_active Expired
- 1977-04-20 IT IT2265677A patent/IT1080361B/it active
- 1977-04-20 JP JP52044598A patent/JPS5943534B2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2920936A (en) | 1957-05-14 | 1960-01-12 | Texaco Inc | Recovery of heavy metals from hydrocarbons |
| DE2118022C3 (de) | 1971-04-14 | 1973-12-13 | Laboratoire Belge De L'industrie Electrique (Laborelec), Linkebeek (Belgien) | Verfahren zur Gewinnung von Vanadiumpentoxid, vorzugsweise aus kohlenstoffhaltigen Verbrennungsruck standen |
| DE2317698A1 (de) | 1972-04-10 | 1973-10-18 | Ecolaire Inc | Oelrussfoerdersystem |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3521092A1 (de) * | 1984-06-13 | 1985-12-19 | VA.NI.M. S.r.l., Novara | Verfahren zur trennung von metallverbindungen durch reduktion |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2348979B1 (US20110009641A1-20110113-C00273.png) | 1983-09-30 |
| JPS52127404A (en) | 1977-10-26 |
| CA1091040A (en) | 1980-12-09 |
| NL7704204A (nl) | 1977-10-24 |
| GB1522459A (en) | 1978-08-23 |
| JPS5943534B2 (ja) | 1984-10-23 |
| IT1080361B (it) | 1985-05-16 |
| FR2348979A1 (fr) | 1977-11-18 |
| US4100251A (en) | 1978-07-11 |
| SE399280B (sv) | 1978-02-06 |
| DE2717303A1 (de) | 1977-11-03 |
| SE7604527L (sv) | 1977-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3306506C2 (US20110009641A1-20110113-C00273.png) | ||
| DE2717303C2 (de) | Verfahren zur Wiedergewinnung von Metallen, insbesondere Vanadium, aus dem bei der Verbrennung von Öl anfallenden Ruß | |
| DE2917751A1 (de) | Verfahren zur gewinnung von kupfer aus hochtoxischem, arsenhaltigem flugstaub aus schmelzoefen und bzw. oder aus raffinerieschlaemmen | |
| DE2513900A1 (de) | Verfahren zum verringern des schwefelgehalts von kohle | |
| DE2743812C2 (de) | Verfahren zur Aufarbeitung von Buntmetallhydroxidschlamm-Abfallen | |
| DE102019124431A1 (de) | Verfahren zum Rückgewinnen von Ammoniak aus der Vanadiumaufbereitung zur Ammoniumaufbereitung und zur Abwasserwiederverwendung | |
| DE2617348A1 (de) | Hydrometallurgisches verfahren zur behandlung schwefelhaltiger mineralien | |
| DE2924657A1 (de) | Verbesserte methode zur gewinnung von metallischem kupfer | |
| DE3509373A1 (de) | Verfahren zum entfernen von vanadium bzw. konzentrationen anderer metalle | |
| DE3003635C2 (de) | Verfahren und Vorrichtung zur Entarsenierung arsenhaltiger Materialien | |
| DE2243577C3 (de) | Verfahren zum Gewinnen quecksilberfreier Schwefelsäure | |
| DE3402320A1 (de) | Verfahren zur regenerierung von beizsaeure | |
| CH644400A5 (de) | Verfahren zur aufarbeitung von buntmetallhydroxidschlammrueckstaenden. | |
| DE2601766A1 (de) | Verfahren zur selektiven rueckgewinnung von cadmium aus cadmiumhaltigem abfall | |
| DE2914823C2 (US20110009641A1-20110113-C00273.png) | ||
| DE2429994A1 (de) | Verfahren zur behandlung von abwaessern, die schwefelsaeure und/oder ammoniumsulfat enthalten | |
| DE2729755C2 (de) | Verfahren zur Herstellung von Titandioxid durch diskontinuierliches Aufschließen von Ilmeniterzen mit Schwefelsäure | |
| EP0107144A1 (de) | Verfahren zum Abtrennen von Luftverunreinigungen aus Abgasen, insbesondere aus Rauchgas, durch Kondensation | |
| DE60110924T2 (de) | Druckauslaugungsverfahren zur gewinnung von zink aus sulfiderzmaterialien | |
| DE3521092A1 (de) | Verfahren zur trennung von metallverbindungen durch reduktion | |
| DE69411056T2 (de) | Verfahren zum Abtrennen und Rückgewinnen von Metallen aus Naturbitumenaschen | |
| DE2118022C3 (de) | Verfahren zur Gewinnung von Vanadiumpentoxid, vorzugsweise aus kohlenstoffhaltigen Verbrennungsruck standen | |
| DE2736488C3 (de) | Verfahren zum Entfernen von Schwefeloxiden aus Rauchgasen | |
| DE69710308T2 (de) | Entsorgung zinkhaltiger metallurgischer Reststoffe durch kontinuierliche elektro-nasschemische Aufarbeitung in basischer Umgebung | |
| DE3732242C2 (US20110009641A1-20110113-C00273.png) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: BENGT ALFREDSSON AB, STENUNGSUND, SE |
|
| 8110 | Request for examination paragraph 44 | ||
| 8128 | New person/name/address of the agent |
Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. |
|
| 8181 | Inventor (new situation) |
Free format text: REINHARDT, NILS KUYLENSTIERNA, ULF VILHELM, FROELUNDA, SE ALFREDSSON, BENGT AGNE, STENUNGSUND, SE |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |