DE2751434C3 - Verfahren zur Wiedergewinnung von Chlorwerte - Google Patents
Verfahren zur Wiedergewinnung von ChlorwerteInfo
- Publication number
- DE2751434C3 DE2751434C3 DE2751434A DE2751434A DE2751434C3 DE 2751434 C3 DE2751434 C3 DE 2751434C3 DE 2751434 A DE2751434 A DE 2751434A DE 2751434 A DE2751434 A DE 2751434A DE 2751434 C3 DE2751434 C3 DE 2751434C3
- Authority
- DE
- Germany
- Prior art keywords
- chloride
- iron
- iii
- sulfur
- chlorination
- 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
- 238000000034 method Methods 0.000 title claims description 44
- 239000000460 chlorine Substances 0.000 title claims description 30
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims description 24
- 229910052801 chlorine Inorganic materials 0.000 title claims description 22
- 238000011084 recovery Methods 0.000 title claims description 6
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 90
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 62
- 238000005660 chlorination reaction Methods 0.000 claims description 29
- 238000007254 oxidation reaction Methods 0.000 claims description 26
- 229910052717 sulfur Inorganic materials 0.000 claims description 26
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 25
- 239000011593 sulfur Substances 0.000 claims description 25
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 24
- 239000006227 byproduct Substances 0.000 claims description 23
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 22
- 230000003647 oxidation Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 20
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical class S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims description 18
- 229910021577 Iron(II) chloride Inorganic materials 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000000047 product Substances 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 239000010936 titanium Substances 0.000 claims description 13
- 229910052719 titanium Inorganic materials 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 10
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- PXJJSXABGXMUSU-UHFFFAOYSA-N disulfur dichloride Chemical compound ClSSCl PXJJSXABGXMUSU-UHFFFAOYSA-N 0.000 claims description 9
- 238000006298 dechlorination reaction Methods 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 7
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 40
- 238000006722 reduction reaction Methods 0.000 description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 12
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 10
- 229960002089 ferrous chloride Drugs 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 8
- 150000001805 chlorine compounds Chemical class 0.000 description 7
- 238000004064 recycling Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000376 reactant Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- -1 e.g. B. Ilmenite Chemical compound 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920001021 polysulfide Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 229960004424 carbon dioxide Drugs 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 229910001902 chlorine oxide Inorganic materials 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910010165 TiCu Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- GILSUHJALCDLNL-UHFFFAOYSA-N [Cl+].[Fe+3] Chemical compound [Cl+].[Fe+3] GILSUHJALCDLNL-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001034 iron oxide pigment Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical group [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
-
- 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
- C01B17/02—Preparation of sulfur; Purification
- C01B17/0253—Preparation of sulfur; Purification from non-gaseous sulfur compounds other than sulfides or materials containing such sulfides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/10—Halides
-
- 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
- C22B34/1204—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 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent
- C22B34/1209—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 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent by dry processes, e.g. with selective chlorination of iron or with formation of a titanium bearing slag
-
- 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)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB47867/76A GB1584359A (en) | 1976-11-17 | 1976-11-17 | Recovery of chlorine values from iron chloride by-produced in chlorination of ilmenite and the like |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2751434A1 DE2751434A1 (de) | 1978-05-18 |
| DE2751434B2 DE2751434B2 (de) | 1980-10-23 |
| DE2751434C3 true DE2751434C3 (de) | 1981-09-17 |
Family
ID=10446528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2751434A Expired DE2751434C3 (de) | 1976-11-17 | 1977-11-17 | Verfahren zur Wiedergewinnung von Chlorwerte |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4140746A (enExample) |
| JP (1) | JPS5363299A (enExample) |
| AU (1) | AU514228B2 (enExample) |
| CA (1) | CA1085589A (enExample) |
| DE (1) | DE2751434C3 (enExample) |
| FR (1) | FR2371378A1 (enExample) |
| GB (1) | GB1584359A (enExample) |
| IT (1) | IT1092208B (enExample) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1120410B (it) * | 1978-04-21 | 1986-03-26 | Mineral Process Licensing Corp | Procedimento per la produzione di ossido di ferro e prodotto ottenuto |
| AU4678679A (en) * | 1978-05-10 | 1979-11-15 | Mineral Process Licensing Corporation B.V. | Recovering chlorine valves from iron chloride obtained from chlorinated aluminous material |
| NO791556L (no) * | 1978-05-16 | 1979-11-19 | Mineral Process Licensing Corp | Fremgangsmaate til aa redusere jern (iii)-klorid til jern(ii)-klorid |
| CA1110039A (en) * | 1978-05-16 | 1981-10-06 | John A. Clarke | Reduction of ferric chloride |
| US4242320A (en) * | 1978-05-16 | 1980-12-30 | Mineral Process Licensing Corporation | Reduction of ferric chloride |
| CA1113225A (en) * | 1978-05-16 | 1981-12-01 | Mineral Process Licensing Corporation B.V. | Recovery of chlorine values |
| AU4678779A (en) * | 1978-05-16 | 1979-11-22 | Mineral Process Licensing Corporation B.V. | Reduction of ferric chloride |
| US4519988A (en) * | 1984-08-08 | 1985-05-28 | Scm Corporation | Two stage chlorination of titaniferous ore |
| AU575420B2 (en) * | 1984-08-08 | 1988-07-28 | Scm Chemicals, Inc. | Recovery of fecl3 and fe2o3 with ticla by partial oxidation from titaniferous iron ores |
| US4540551A (en) * | 1984-08-08 | 1985-09-10 | Scm Corporation | Two stage chlorination of titaniferous ore with FeCl3 reclamation |
| DE3516549A1 (de) * | 1985-05-08 | 1986-11-13 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von titandioxid-konzentraten |
| DE3521632A1 (de) * | 1985-06-15 | 1986-12-18 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zum behandeln einer eisenchlorid und salzsaeure enthaltenden waessrigen loesung |
| EP0232615A3 (en) * | 1986-01-10 | 1988-11-30 | E.I. Du Pont De Nemours And Company | Liquid phase adsorption and oxidation of ferric chloride using a eutectic salt complex |
| AUPP455098A0 (en) * | 1998-07-07 | 1998-07-30 | Commonwealth Scientific And Industrial Research Organisation | Process for chlorine recovery |
| CN102824718B (zh) * | 2012-09-07 | 2015-04-15 | 桂林市产品质量监督检验所 | 复合型催化脱氯剂 |
| US20140246105A1 (en) | 2013-03-01 | 2014-09-04 | Universe Machine Corporation | Shutoff valve |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3172915A (en) * | 1965-03-09 | Preparation of oxygenated methane derivatives | ||
| US2245076A (en) * | 1939-12-22 | 1941-06-10 | Pittsburgh Plate Glass Co | Chlorination of titanium bearing materials |
| US2642339A (en) * | 1948-11-06 | 1953-06-16 | Du Pont | Process for oxidizing iron halides to produce iron oxide and chlorine |
| US2852339A (en) * | 1955-01-21 | 1958-09-16 | Texas Gulf Sulphur Co | Process of chlorinating iron sulfide to produce ferrous chloride and sulfur |
| US3562321A (en) * | 1961-10-10 | 1971-02-09 | Sun Oil Co | Preparation of oxygenated hydrocarbons |
| CA969883A (en) * | 1971-02-17 | 1975-06-24 | Trw Inc. | Removal of pyritic sulfur from coal using solutions containing ferric ions |
| US3920791A (en) * | 1971-02-17 | 1975-11-18 | Trw Inc | Recovery of ferric chloride and ferric oxide from iron chloride solutions |
| GB1407034A (en) * | 1972-07-21 | 1975-09-24 | Laporte Industries Ltd | Process for the recovery of chlorine |
| DE2336017A1 (de) * | 1973-07-14 | 1975-02-27 | Rheinische Braunkohlenw Ag | Verfahren zur gewinnung von wasserstoff und sauerstoff mit hilfe von eisen, chlor, wasserstoff und sauerstoff |
-
1976
- 1976-11-17 GB GB47867/76A patent/GB1584359A/en not_active Expired
-
1977
- 1977-11-03 US US05/848,305 patent/US4140746A/en not_active Expired - Lifetime
- 1977-11-14 AU AU30628/77A patent/AU514228B2/en not_active Expired
- 1977-11-14 CA CA290,744A patent/CA1085589A/en not_active Expired
- 1977-11-15 IT IT5181977A patent/IT1092208B/it active
- 1977-11-16 FR FR7734430A patent/FR2371378A1/fr not_active Withdrawn
- 1977-11-17 JP JP13732277A patent/JPS5363299A/ja active Granted
- 1977-11-17 DE DE2751434A patent/DE2751434C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1584359A (en) | 1981-02-11 |
| JPS5363299A (en) | 1978-06-06 |
| JPS5614605B2 (enExample) | 1981-04-06 |
| AU514228B2 (en) | 1981-01-29 |
| DE2751434B2 (de) | 1980-10-23 |
| US4140746A (en) | 1979-02-20 |
| IT1092208B (it) | 1985-07-06 |
| CA1085589A (en) | 1980-09-16 |
| AU3062877A (en) | 1979-05-24 |
| DE2751434A1 (de) | 1978-05-18 |
| FR2371378A1 (fr) | 1978-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |