NO134117B - - Google Patents
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- Publication number
- NO134117B NO134117B NO2852/71A NO285271A NO134117B NO 134117 B NO134117 B NO 134117B NO 2852/71 A NO2852/71 A NO 2852/71A NO 285271 A NO285271 A NO 285271A NO 134117 B NO134117 B NO 134117B
- Authority
- NO
- Norway
- Prior art keywords
- lead
- leaching
- solution
- sulphate
- dissolved
- Prior art date
Links
- 239000000243 solution Substances 0.000 claims description 75
- 238000002386 leaching Methods 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 40
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 34
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 26
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 claims description 21
- 150000002611 lead compounds Chemical class 0.000 claims description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 18
- 239000001569 carbon dioxide Substances 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 150000001412 amines Chemical class 0.000 claims description 13
- 229910000003 Lead carbonate Inorganic materials 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 239000002253 acid Chemical class 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 claims description 8
- 125000002947 alkylene group Chemical group 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 claims description 6
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 claims description 6
- 150000004763 sulfides Chemical class 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 229910000464 lead oxide Inorganic materials 0.000 claims description 5
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 5
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 claims description 2
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 18
- 239000007787 solid Substances 0.000 description 18
- 229910052725 zinc Inorganic materials 0.000 description 18
- 239000011701 zinc Substances 0.000 description 18
- 239000012141 concentrate Substances 0.000 description 17
- 238000007254 oxidation reaction Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 15
- 230000003647 oxidation Effects 0.000 description 13
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 11
- 229910052709 silver Inorganic materials 0.000 description 11
- 239000004332 silver Substances 0.000 description 11
- 239000005864 Sulphur Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- BNZCDZDLTIHJAC-UHFFFAOYSA-N 2-azaniumylethylazanium;sulfate Chemical compound NCC[NH3+].OS([O-])(=O)=O BNZCDZDLTIHJAC-UHFFFAOYSA-N 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 229910000004 White lead Inorganic materials 0.000 description 5
- 235000011132 calcium sulphate Nutrition 0.000 description 5
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical compound [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000001175 calcium sulphate Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000005188 flotation Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229940046892 lead acetate Drugs 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000005083 Zinc sulfide Substances 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002006 petroleum coke Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical group CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- -1 tritylenetetramine Chemical compound 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 239000011686 zinc sulphate Substances 0.000 description 1
- 235000009529 zinc sulphate Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/20—Carbocyclic rings
- C07H15/22—Cyclohexane rings, substituted by nitrogen atoms
- C07H15/222—Cyclohexane rings substituted by at least two nitrogen atoms
- C07H15/226—Cyclohexane rings substituted by at least two nitrogen atoms with at least two saccharide radicals directly attached to the cyclohexane rings
- C07H15/234—Cyclohexane rings substituted by at least two nitrogen atoms with at least two saccharide radicals directly attached to the cyclohexane rings attached to non-adjacent ring carbon atoms of the cyclohexane rings, e.g. kanamycins, tobramycin, nebramycin, gentamicin A2
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Saccharide Compounds (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45065760A JPS507595B1 (fr) | 1970-07-29 | 1970-07-29 | |
| JP3087171A JPS5146110B1 (fr) | 1971-05-11 | 1971-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO134117B true NO134117B (fr) | 1976-05-10 |
| NO134117C NO134117C (fr) | 1976-08-18 |
Family
ID=26369303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2852/71A NO134117C (fr) | 1970-07-29 | 1971-07-28 |
Country Status (23)
| Country | Link |
|---|---|
| AT (1) | AT320846B (fr) |
| BE (1) | BE770692A (fr) |
| BG (1) | BG19188A3 (fr) |
| CA (1) | CA953294A (fr) |
| CH (1) | CH552586A (fr) |
| DK (1) | DK127778B (fr) |
| ES (1) | ES392570A1 (fr) |
| FI (1) | FI57596C (fr) |
| FR (1) | FR2103935A5 (fr) |
| GB (1) | GB1349302A (fr) |
| HK (1) | HK57477A (fr) |
| HU (1) | HU162704B (fr) |
| IE (1) | IE35480B1 (fr) |
| IL (1) | IL36973A (fr) |
| LU (1) | LU63625A1 (fr) |
| MY (1) | MY7800147A (fr) |
| NL (1) | NL163219C (fr) |
| NO (1) | NO134117C (fr) |
| PL (1) | PL83206B1 (fr) |
| RO (1) | RO63815A (fr) |
| SE (1) | SE398753B (fr) |
| SU (1) | SU511007A3 (fr) |
| YU (1) | YU35895B (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1537905A (en) * | 1975-12-09 | 1979-01-10 | Microbial Chem Res Found | Processes for the preparation of 3',4'-dideoxykanamycin b |
| JPS6029720B2 (ja) * | 1975-12-11 | 1985-07-12 | 財団法人微生物化学研究会 | ３′，４′‐ジデオキシカナマイシンｂの新規な製造法 |
| JPS52153942A (en) * | 1976-06-16 | 1977-12-21 | Microbial Chem Res Found | Preparation of kanamicin c deoxy derivatives and kanamicine c or its deoxy derivatives |
| JPS6052719B2 (ja) * | 1976-12-16 | 1985-11-20 | 財団法人微生物化学研究会 | ３′，４′−ジデオキシカナマイシンｂの新規な製造法 |
| US8148504B2 (en) * | 2006-06-02 | 2012-04-03 | Meiji Seika Pharma Co., Ltd. | Aminoglycoside antibiotics |
-
1971
- 1971-06-01 GB GB1831771A patent/GB1349302A/en not_active Expired
- 1971-06-02 IL IL36973A patent/IL36973A/xx unknown
- 1971-06-18 FI FI1744/71A patent/FI57596C/fi active
- 1971-06-23 ES ES392570A patent/ES392570A1/es not_active Expired
- 1971-06-25 CH CH937771A patent/CH552586A/xx not_active IP Right Cessation
- 1971-06-29 NL NL7109001.A patent/NL163219C/xx not_active IP Right Cessation
- 1971-07-19 HU HUZA335A patent/HU162704B/hu unknown
- 1971-07-23 SU SU1685994A patent/SU511007A3/ru active
- 1971-07-26 RO RO7100067797A patent/RO63815A/fr unknown
- 1971-07-27 YU YU1963/71A patent/YU35895B/xx unknown
- 1971-07-28 AT AT657571A patent/AT320846B/de not_active IP Right Cessation
- 1971-07-28 NO NO2852/71A patent/NO134117C/no unknown
- 1971-07-28 FR FR7128504A patent/FR2103935A5/fr not_active Expired
- 1971-07-28 DK DK371271AA patent/DK127778B/da unknown
- 1971-07-28 PL PL1971149704A patent/PL83206B1/pl unknown
- 1971-07-28 LU LU63625D patent/LU63625A1/xx unknown
- 1971-07-28 IE IE964/71A patent/IE35480B1/xx unknown
- 1971-07-28 CA CA119,288A patent/CA953294A/en not_active Expired
- 1971-07-29 SE SE7109756A patent/SE398753B/xx unknown
- 1971-07-29 BE BE770692A patent/BE770692A/fr unknown
- 1971-07-29 BG BG018187A patent/BG19188A3/xx unknown
-
1977
- 1977-11-17 HK HK574/77A patent/HK57477A/xx unknown
-
1978
- 1978-12-30 MY MY147/78A patent/MY7800147A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL36973A (en) | 1974-06-30 |
| PL83206B1 (en) | 1975-12-31 |
| NL163219C (nl) | 1980-08-15 |
| DK127778B (da) | 1974-01-07 |
| CA953294A (en) | 1974-08-20 |
| SU511007A3 (ru) | 1976-04-15 |
| NO134117C (fr) | 1976-08-18 |
| DE2135191B2 (de) | 1976-09-02 |
| CH552586A (de) | 1974-08-15 |
| NL163219B (nl) | 1980-03-17 |
| BE770692A (fr) | 1971-12-01 |
| DE2135191A1 (fr) | 1972-02-03 |
| HU162704B (fr) | 1973-03-28 |
| BG19188A3 (bg) | 1975-04-30 |
| GB1349302A (en) | 1974-04-03 |
| RO63815A (fr) | 1979-01-15 |
| MY7800147A (en) | 1978-12-31 |
| FI57596B (fi) | 1980-05-30 |
| HK57477A (en) | 1977-11-25 |
| YU196371A (en) | 1981-02-28 |
| IE35480B1 (en) | 1976-03-03 |
| LU63625A1 (fr) | 1971-11-26 |
| ES392570A1 (es) | 1974-06-16 |
| NL7109001A (fr) | 1972-02-01 |
| SE398753B (sv) | 1978-01-16 |
| FI57596C (fi) | 1980-09-10 |
| IE35480L (en) | 1972-01-29 |
| AT320846B (de) | 1975-02-25 |
| YU35895B (en) | 1981-08-31 |
| FR2103935A5 (fr) | 1972-04-14 |
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