FI65810C - Foerfarande foer behandling av raomaterial innehaollande oxid och ferrit av zink koppar och kadmium - Google Patents
Foerfarande foer behandling av raomaterial innehaollande oxid och ferrit av zink koppar och kadmium Download PDFInfo
- Publication number
- FI65810C FI65810C FI803098A FI803098A FI65810C FI 65810 C FI65810 C FI 65810C FI 803098 A FI803098 A FI 803098A FI 803098 A FI803098 A FI 803098A FI 65810 C FI65810 C FI 65810C
- Authority
- FI
- Finland
- Prior art keywords
- zinc
- iron
- solution
- jarosite
- och
- Prior art date
Links
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title description 12
- 238000000034 method Methods 0.000 claims description 103
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 81
- 230000008569 process Effects 0.000 claims description 78
- 239000011701 zinc Substances 0.000 claims description 67
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 59
- 229910052725 zinc Inorganic materials 0.000 claims description 59
- 238000006243 chemical reaction Methods 0.000 claims description 39
- 229910052742 iron Inorganic materials 0.000 claims description 37
- 229910052935 jarosite Inorganic materials 0.000 claims description 35
- 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 21
- 229910052595 hematite Inorganic materials 0.000 claims description 20
- 239000011019 hematite Substances 0.000 claims description 20
- 239000002244 precipitate Substances 0.000 claims description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 239000007790 solid phase Substances 0.000 claims description 12
- 229910000859 α-Fe Inorganic materials 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 7
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 claims description 2
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 claims description 2
- 229910000431 copper oxide Inorganic materials 0.000 claims description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 2
- 235000009529 zinc sulphate Nutrition 0.000 claims description 2
- 239000011686 zinc sulphate Substances 0.000 claims description 2
- -1 ammonium ions Chemical class 0.000 claims 1
- 229910000462 iron(III) oxide hydroxide Inorganic materials 0.000 claims 1
- 230000001376 precipitating effect Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 description 38
- 239000011133 lead Substances 0.000 description 33
- 238000002386 leaching Methods 0.000 description 30
- 239000000243 solution Substances 0.000 description 26
- 239000010931 gold Substances 0.000 description 25
- 229910052709 silver Inorganic materials 0.000 description 25
- 229910052737 gold Inorganic materials 0.000 description 21
- 239000000203 mixture Substances 0.000 description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 19
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 19
- 239000004332 silver Substances 0.000 description 19
- 238000011084 recovery Methods 0.000 description 15
- 229910052793 cadmium Inorganic materials 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 14
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 13
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 13
- 239000012141 concentrate Substances 0.000 description 11
- 230000007935 neutral effect Effects 0.000 description 10
- 229910052598 goethite Inorganic materials 0.000 description 8
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 229910052745 lead Inorganic materials 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 239000010970 precious metal Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000005670 sulfation reaction Methods 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical class [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005486 sulfidation Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- 229910000979 O alloy Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012045 crude solution Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910000368 zinc sulfate Chemical group 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/06—Sulfates
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0084—Treating solutions
- C22B15/0089—Treating solutions by chemical methods
-
- 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
- C22B17/00—Obtaining cadmium
- C22B17/04—Obtaining cadmium by wet processes
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Compounds Of Iron (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI803098A FI65810C (fi) | 1980-09-30 | 1980-09-30 | Foerfarande foer behandling av raomaterial innehaollande oxid och ferrit av zink koppar och kadmium |
| DE19813137707 DE3137707A1 (de) | 1980-09-30 | 1981-09-22 | Verfahren zur verarbeitung zink-, kupfer- und kadmiumoxid- und ferrithaltigen rohmaterials |
| IN1069/CAL/81A IN155458B (cs) | 1980-09-30 | 1981-09-25 | |
| AU75709/81A AU530628B2 (en) | 1980-09-30 | 1981-09-28 | Treating raw material containing oxide and ferrite of zinc, copper and cadmium |
| ES505860A ES8206649A1 (es) | 1980-09-30 | 1981-09-29 | Un procedimiento para el tratamiento de una materia prima que contiene oxido y ferrito de zinc,cobre y-o cadmio |
| MX18939481A MX157227A (es) | 1980-09-30 | 1981-09-29 | Metodo mejorado para tratar por lixiviacion un material que contiene oxido y ferrita de zinc cobre,cadmio,plomo,plata y oro |
| US06/306,706 US4355005A (en) | 1980-09-30 | 1981-09-29 | Process for the treatment of a raw material which contains oxide and ferrite of zinc, copper and cadmium |
| CA000386851A CA1175664A (en) | 1980-09-30 | 1981-09-29 | Process for the treatment of a raw material which contains oxide and ferrite of zinc, copper and cadmium |
| GB8129487A GB2084554B (en) | 1980-09-30 | 1981-09-30 | A process for the treatment of a raw material which contains oxide and ferrite of zinc copper and cadmium |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI803098 | 1980-09-30 | ||
| FI803098A FI65810C (fi) | 1980-09-30 | 1980-09-30 | Foerfarande foer behandling av raomaterial innehaollande oxid och ferrit av zink koppar och kadmium |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI803098A7 FI803098A7 (fi) | 1982-03-31 |
| FI65810B FI65810B (fi) | 1984-03-30 |
| FI65810C true FI65810C (fi) | 1984-07-10 |
Family
ID=8513822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI803098A FI65810C (fi) | 1980-09-30 | 1980-09-30 | Foerfarande foer behandling av raomaterial innehaollande oxid och ferrit av zink koppar och kadmium |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4355005A (cs) |
| AU (1) | AU530628B2 (cs) |
| CA (1) | CA1175664A (cs) |
| DE (1) | DE3137707A1 (cs) |
| ES (1) | ES8206649A1 (cs) |
| FI (1) | FI65810C (cs) |
| GB (1) | GB2084554B (cs) |
| IN (1) | IN155458B (cs) |
| MX (1) | MX157227A (cs) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5078786A (en) * | 1986-11-26 | 1992-01-07 | Resource Technology Associates | Process for recovering metal values from jarosite solids |
| WO1988003912A1 (en) * | 1986-11-26 | 1988-06-02 | Resource Technology Associates | Process for recovering metal values from ferrite wastes |
| DE3935362A1 (de) * | 1989-10-24 | 1991-04-25 | Ruhr Zink Gmbh | Verfahren zur aufarbeitung von jarosit-haltigen rueckstaenden |
| FI93660C (fi) * | 1993-06-24 | 1995-05-10 | Outokumpu Eng Contract | Tapa liuottaa sinkkioksidia ja -silikaattia sisältävää materiaalia |
| US5401485A (en) * | 1994-03-15 | 1995-03-28 | Shell Oil Company | Reduction of residual chloride in iron oxides |
| CN112095014A (zh) * | 2020-09-27 | 2020-12-18 | 衡阳市大宇锌业有限公司 | 一种从铜镉渣中高效回收利用铜、镉的方法 |
| IT202100005630A1 (it) * | 2021-03-10 | 2022-09-10 | Ecotec Gestione Impianti S R L | Procedimento per il trattamento di residui dell’industria della produzione dello zinco e del piombo, con ottenimento di prodotti valorizzabili e materie prime secondarie, in accordo con le strategie dell’economia circolare |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA851656A (en) * | 1970-09-15 | Newmont Exploration Limited | Sulfation of refractory metal oxides | |
| US1834960A (en) * | 1930-04-25 | 1931-12-08 | Anaconda Copper Mining Co | Treating zinc concentrate and plant residue |
| NO130323L (cs) * | 1971-02-22 | |||
| ES407811A2 (es) * | 1972-10-20 | 1976-02-01 | Asturiana De Zinc Sa | Un procedimiento de recuperacion de zinc de las ferritas existentes en residuos. |
| FI50141C (fi) * | 1973-02-01 | 1975-12-10 | Outokumpu Oy | Menetelmä raudan valmistukseen soveltuvan raaka-aineen valmistamiseksi sinkin elektrolyyttisestä valmistuksesta peräisin olevasta sakasta. |
| FI50097C (fi) * | 1973-02-12 | 1980-10-24 | Outokumpu Oy | Hydrometallurgiskt foerfarande foer aotervinning av zink koppar och kadmium fraon deras ferriter |
| AR207671A1 (es) * | 1975-01-03 | 1976-10-22 | Prayon | Procedimiento para la obtencion de un pigmento basico de oxido de hierro en forma alfa-fe2o3 |
| FI773588A7 (fi) * | 1977-11-28 | 1979-05-29 | Outokumpu Oy | Hydrometallurgisk process foer behandling av oxider och ferriter innehaollande jaern och andra metaller |
-
1980
- 1980-09-30 FI FI803098A patent/FI65810C/fi not_active IP Right Cessation
-
1981
- 1981-09-22 DE DE19813137707 patent/DE3137707A1/de not_active Ceased
- 1981-09-25 IN IN1069/CAL/81A patent/IN155458B/en unknown
- 1981-09-28 AU AU75709/81A patent/AU530628B2/en not_active Ceased
- 1981-09-29 MX MX18939481A patent/MX157227A/es unknown
- 1981-09-29 CA CA000386851A patent/CA1175664A/en not_active Expired
- 1981-09-29 ES ES505860A patent/ES8206649A1/es not_active Expired
- 1981-09-29 US US06/306,706 patent/US4355005A/en not_active Expired - Fee Related
- 1981-09-30 GB GB8129487A patent/GB2084554B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IN155458B (cs) | 1985-02-02 |
| CA1175664A (en) | 1984-10-09 |
| FI803098A7 (fi) | 1982-03-31 |
| FI65810B (fi) | 1984-03-30 |
| AU7570981A (en) | 1982-07-15 |
| US4355005A (en) | 1982-10-19 |
| GB2084554A (en) | 1982-04-15 |
| ES505860A0 (es) | 1982-08-16 |
| AU530628B2 (en) | 1983-07-21 |
| ES8206649A1 (es) | 1982-08-16 |
| DE3137707A1 (de) | 1982-05-19 |
| MX157227A (es) | 1988-11-07 |
| GB2084554B (en) | 1984-08-08 |
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