JPS6352094B2 - - Google Patents
Info
- Publication number
- JPS6352094B2 JPS6352094B2 JP56092946A JP9294681A JPS6352094B2 JP S6352094 B2 JPS6352094 B2 JP S6352094B2 JP 56092946 A JP56092946 A JP 56092946A JP 9294681 A JP9294681 A JP 9294681A JP S6352094 B2 JPS6352094 B2 JP S6352094B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- chloride
- silver
- lime
- precipitate
- 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
- 239000011133 lead Substances 0.000 claims description 119
- 238000000034 method Methods 0.000 claims description 69
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 66
- 229910052709 silver Inorganic materials 0.000 claims description 66
- 239000004332 silver Substances 0.000 claims description 66
- 239000012267 brine Substances 0.000 claims description 48
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 48
- 239000004571 lime Substances 0.000 claims description 45
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 44
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 44
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 40
- 239000000047 product Substances 0.000 claims description 37
- 239000002244 precipitate Substances 0.000 claims description 32
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims description 25
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 claims description 23
- 150000003839 salts Chemical class 0.000 claims description 19
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 claims description 18
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical group [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 17
- 150000001805 chlorine compounds Chemical class 0.000 claims description 17
- 229910052725 zinc Inorganic materials 0.000 claims description 17
- 239000011701 zinc Substances 0.000 claims description 17
- 239000001110 calcium chloride Substances 0.000 claims description 16
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 239000011780 sodium chloride Substances 0.000 claims description 15
- 239000011575 calcium Substances 0.000 claims description 14
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 229910052791 calcium Inorganic materials 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 229910000464 lead oxide Inorganic materials 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 10
- 229940100890 silver compound Drugs 0.000 claims description 10
- 150000003379 silver compounds Chemical class 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 238000005188 flotation Methods 0.000 claims description 7
- 239000010909 process residue Substances 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- AFSKMUFTKFPHCZ-UHFFFAOYSA-N calcium;oxolead Chemical class [Ca].[Pb]=O AFSKMUFTKFPHCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000013505 freshwater Substances 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000011282 treatment Methods 0.000 claims description 4
- 150000003841 chloride salts Chemical class 0.000 claims description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims 1
- 239000012047 saturated solution Substances 0.000 claims 1
- 238000002386 leaching Methods 0.000 description 32
- 239000012141 concentrate Substances 0.000 description 13
- 239000012266 salt solution Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 9
- 238000011084 recovery Methods 0.000 description 9
- 238000003723 Smelting Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 5
- 230000001376 precipitating effect Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000001354 calcination Methods 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229910021607 Silver chloride Inorganic materials 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 229910052946 acanthite Inorganic materials 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 229910052797 bismuth Inorganic materials 0.000 description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 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
- 238000004140 cleaning Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052981 lead sulfide Inorganic materials 0.000 description 3
- 229940056932 lead sulfide Drugs 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 3
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 description 3
- 229910000367 silver sulfate Inorganic materials 0.000 description 3
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 3
- 229940056910 silver sulfide Drugs 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 101100010166 Mus musculus Dok3 gene Proteins 0.000 description 2
- 241000982035 Sparattosyce Species 0.000 description 2
- -1 baghouses Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical class [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- HYZVGIOGIIITGP-UHFFFAOYSA-N [Ag]=S.[Cu].[Pb].[Zn] Chemical compound [Ag]=S.[Cu].[Pb].[Zn] HYZVGIOGIIITGP-UHFFFAOYSA-N 0.000 description 1
- VAEJJMYYTOYMLE-UHFFFAOYSA-N [O].OS(O)(=O)=O Chemical compound [O].OS(O)(=O)=O VAEJJMYYTOYMLE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- HRFUVWOHAQEYSQ-UHFFFAOYSA-N chloro hypochlorite hydrochloride Chemical compound Cl[H].ClOCl HRFUVWOHAQEYSQ-UHFFFAOYSA-N 0.000 description 1
- 238000012777 commercial manufacturing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229910052949 galena Inorganic materials 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001180 sulfating effect Effects 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 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
- C22B11/00—Obtaining noble metals
-
- 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
- C22B13/00—Obtaining lead
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000354083A CA1156048A (en) | 1980-06-16 | 1980-06-16 | Process for the recovery of lead and silver from minerals and process residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5729541A JPS5729541A (en) | 1982-02-17 |
| JPS6352094B2 true JPS6352094B2 (es) | 1988-10-18 |
Family
ID=4117190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9294681A Granted JPS5729541A (en) | 1980-06-16 | 1981-06-16 | Recovery of lead and silver from minerals and process residue |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0042702B1 (es) |
| JP (1) | JPS5729541A (es) |
| AU (1) | AU549357B2 (es) |
| CA (1) | CA1156048A (es) |
| DE (1) | DE3166293D1 (es) |
| ES (1) | ES8301284A1 (es) |
| FI (1) | FI71342C (es) |
| IE (1) | IE52179B1 (es) |
| PT (1) | PT73185B (es) |
| ZA (1) | ZA813982B (es) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5046263B2 (ja) * | 2005-06-24 | 2012-10-10 | 株式会社吉野工業所 | 液注出容器のキャップ |
| JP4781794B2 (ja) * | 2005-11-28 | 2011-09-28 | キユーピー株式会社 | 注出容器 |
| CN101994007B (zh) * | 2009-08-28 | 2012-08-15 | 沈阳有色金属研究院 | 用氯化镁从废铅酸蓄电池膏泥中脱硫的方法 |
| CN105705664A (zh) * | 2013-09-27 | 2016-06-22 | 西班牙联合技术公司 | 选择性回收铅和银的工艺 |
| CN104789790B (zh) * | 2015-04-08 | 2016-08-17 | 吉林吉恩镍业股份有限公司 | 尼尔森重选含铅金精矿无铅化冶炼工艺 |
| CN109022817A (zh) * | 2018-07-27 | 2018-12-18 | 郴州雄风环保科技有限公司 | 高氯铅银渣脱氯的新工艺 |
| CN112442602A (zh) * | 2020-10-09 | 2021-03-05 | 超威电源集团有限公司 | 一种废旧铅膏回收方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1434085A (en) * | 1920-01-02 | 1922-10-31 | Niels C Christensen | Process of treating ores with chloride solutions |
| US1745945A (en) * | 1924-01-08 | 1930-02-04 | Us Smelting Refining & Mining | Process of treating ores or analogous materials |
| GB365964A (en) * | 1930-06-17 | 1932-01-28 | Paul Gamichon | Process for converting into soluble salts lead and other metals contained in lead bearing ores |
| US3477928A (en) * | 1966-03-28 | 1969-11-11 | Cerro Corp | Process for the recovery of metals |
| DE2500453A1 (de) * | 1975-01-08 | 1976-07-15 | Duisburger Kupferhuette | Verfahren zur gewinnung von werkblei |
| SE8004425L (sv) * | 1980-03-24 | 1980-12-21 | Asua Ind Quim | Forfarande for modifiering av silver- och blyhaltiga aterstoder |
-
1980
- 1980-06-16 CA CA000354083A patent/CA1156048A/en not_active Expired
-
1981
- 1981-06-11 ES ES502948A patent/ES8301284A1/es not_active Expired
- 1981-06-12 PT PT73185A patent/PT73185B/pt unknown
- 1981-06-12 FI FI811847A patent/FI71342C/fi not_active IP Right Cessation
- 1981-06-12 ZA ZA813982A patent/ZA813982B/xx unknown
- 1981-06-12 DE DE8181302614T patent/DE3166293D1/de not_active Expired
- 1981-06-12 EP EP81302614A patent/EP0042702B1/en not_active Expired
- 1981-06-12 IE IE1310/81A patent/IE52179B1/en not_active IP Right Cessation
- 1981-06-15 AU AU71846/81A patent/AU549357B2/en not_active Ceased
- 1981-06-16 JP JP9294681A patent/JPS5729541A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| EP0042702A1 (en) | 1981-12-30 |
| AU7184681A (en) | 1981-12-24 |
| PT73185A (en) | 1981-07-01 |
| PT73185B (en) | 1982-07-16 |
| FI71342C (fi) | 1986-12-19 |
| DE3166293D1 (en) | 1984-10-31 |
| JPS5729541A (en) | 1982-02-17 |
| IE52179B1 (en) | 1987-08-05 |
| IE811310L (en) | 1981-12-16 |
| FI71342B (fi) | 1986-09-09 |
| ES502948A0 (es) | 1982-11-16 |
| FI811847L (fi) | 1981-12-17 |
| EP0042702B1 (en) | 1984-09-26 |
| CA1156048A (en) | 1983-11-01 |
| ZA813982B (en) | 1982-08-25 |
| ES8301284A1 (es) | 1982-11-16 |
| AU549357B2 (en) | 1986-01-23 |
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