CA1244246A - Extraction process for removing and recovering metals from aqueous solutions - Google Patents
Extraction process for removing and recovering metals from aqueous solutionsInfo
- Publication number
- CA1244246A CA1244246A CA000484515A CA484515A CA1244246A CA 1244246 A CA1244246 A CA 1244246A CA 000484515 A CA000484515 A CA 000484515A CA 484515 A CA484515 A CA 484515A CA 1244246 A CA1244246 A CA 1244246A
- Authority
- CA
- Canada
- Prior art keywords
- metal
- process according
- extraction
- hydrocarbon
- group
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 82
- 239000002184 metal Substances 0.000 title claims abstract description 82
- 238000000605 extraction Methods 0.000 title claims abstract description 37
- 239000007864 aqueous solution Substances 0.000 title claims abstract description 22
- 150000002739 metals Chemical class 0.000 title abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 43
- 239000000243 solution Substances 0.000 claims abstract description 43
- 239000002253 acid Substances 0.000 claims abstract description 26
- -1 phenyl-vinyl group Chemical group 0.000 claims abstract description 16
- 125000004185 ester group Chemical group 0.000 claims abstract description 9
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 4
- 239000010842 industrial wastewater Substances 0.000 claims abstract description 3
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 3
- 239000011572 manganese Substances 0.000 claims description 16
- 239000011701 zinc Substances 0.000 claims description 16
- 150000002430 hydrocarbons Chemical class 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims description 13
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 13
- 229930195733 hydrocarbon Natural products 0.000 claims description 13
- 239000011777 magnesium Substances 0.000 claims description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 12
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 9
- 229910052749 magnesium Inorganic materials 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052770 Uranium Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims description 4
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 150000003009 phosphonic acids Chemical class 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000011084 recovery Methods 0.000 description 14
- 239000003643 water by type Substances 0.000 description 14
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 8
- 229910017052 cobalt Inorganic materials 0.000 description 8
- 239000010941 cobalt Substances 0.000 description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- SEGLCEQVOFDUPX-UHFFFAOYSA-N di-(2-ethylhexyl)phosphoric acid Chemical compound CCCCC(CC)COP(O)(=O)OCC(CC)CCCC SEGLCEQVOFDUPX-UHFFFAOYSA-N 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 239000003929 acidic solution Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000005341 cation exchange Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- 150000002602 lanthanoids Chemical class 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 235000021110 pickles Nutrition 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 235000009529 zinc sulphate Nutrition 0.000 description 2
- 239000011686 zinc sulphate Substances 0.000 description 2
- 101000654316 Centruroides limpidus Beta-toxin Cll2 Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003935 attention Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/01—Preparation or separation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/005—Preparation involving liquid-liquid extraction, absorption or ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G39/00—Compounds of molybdenum
- C01G39/003—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
- C01G9/00—Compounds of zinc
- C01G9/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- 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
- C22B3/3844—Phosphonic acid, e.g. H2P(O)(OH)2
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
- C22B60/026—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries liquid-liquid extraction with or without dissolution in organic solvents
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/09—Reaction techniques
- Y10S423/14—Ion exchange; chelation or liquid/liquid ion extraction
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI842668A FI70049C (fi) | 1984-07-03 | 1984-07-03 | Vaetske-vaetske-extraktionsfoerfarande foer avlaegsnande och utvinning av metaller ur vattenloesningar |
| FI842668 | 1984-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1244246A true CA1244246A (en) | 1988-11-08 |
Family
ID=8519342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000484515A Expired CA1244246A (en) | 1984-07-03 | 1985-06-19 | Extraction process for removing and recovering metals from aqueous solutions |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US4818503A (enExample) |
| BE (1) | BE902810A (enExample) |
| CA (1) | CA1244246A (enExample) |
| DE (1) | DE3523624A1 (enExample) |
| FI (1) | FI70049C (enExample) |
| IT (1) | IT1188171B (enExample) |
| SE (1) | SE463495B (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2595089B1 (fr) * | 1986-02-28 | 1990-11-02 | Rhone Poulenc Chimie | Procede de purification d'un sel de baryum |
| DE4110128A1 (de) * | 1990-04-09 | 1991-11-07 | Westinghouse Electric Corp | Dekontamination von radioaktiv verseuchten metallen |
| US5183541A (en) * | 1990-04-09 | 1993-02-02 | Westinghouse Electric Corp. | Decontamination of radioactive metals |
| US5217585A (en) * | 1991-12-20 | 1993-06-08 | Westinghouse Electric Corp. | Transition metal decontamination process |
| FR2688336B1 (fr) * | 1992-03-03 | 1994-05-13 | Matieres Nucleaires Cie Gle | Procede pour separer le niobium, l'antimoine et/ou au moins un element des groupes viib et viii a partir de solutions aqueuses issues du retraitement des combustibles nucleaires uses. |
| US5650057A (en) * | 1993-07-29 | 1997-07-22 | Cominco Engineering Services Ltd. | Chloride assisted hydrometallurgical extraction of metal |
| US5474280A (en) * | 1993-08-20 | 1995-12-12 | Martin; Charles A. | Apparatus for preheating a reactor feed |
| NL9500065A (nl) * | 1995-01-12 | 1996-08-01 | Bammens Groep B V | Werkwijze voor het selectief verwijderen van zink uit zure afvalstromen. |
| US6843976B2 (en) * | 2001-02-27 | 2005-01-18 | Noranda Inc. | Reduction of zinc oxide from complex sulfide concentrates using chloride processing |
| CN113308610B (zh) * | 2021-05-28 | 2023-01-31 | 中南大学 | 一种萃取有机相及其在高酸体系萃取-反萃富集锌的应用 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2869980A (en) * | 1955-08-09 | 1959-01-20 | Robert R Grinstead | Process for the recovery of metals from high-lime carnotite ores |
| US2859094A (en) * | 1957-02-07 | 1958-11-04 | John M Schmitt | Uranium extraction process using synergistic reagents |
| US3052514A (en) * | 1960-06-03 | 1962-09-04 | John M Schmitt | Process for recovering uranium from aqueous phosphoric acid liquors |
| DE2239591A1 (de) * | 1972-08-11 | 1974-02-28 | Bayer Ag | Verfahren zur extraktion von zink, cadmium und/oder indium aus metallsalzloesungen |
| US3966569A (en) * | 1974-01-28 | 1976-06-29 | Mx Processor Reinhardt & Co. Ab | Method of recovering metal from metalliferous waste |
| DE2417510A1 (de) * | 1974-04-10 | 1975-10-30 | Bayer Ag | Verfahren zur extraktion von metallen aus waessrigen loesungen mit sauren phosphorverbindungen |
| CA1061568A (en) * | 1975-01-17 | 1979-09-04 | Antoine Van Peteghem | Process for extracting metal values from manganiferous ocean floor nodule ore |
| DE2621606C2 (de) * | 1976-05-14 | 1987-04-16 | Bayer Ag, 5090 Leverkusen | Verwendung von Propan-1,3-diphosphonsäuren für die Wasserkonditionierung |
| IL58726A (en) * | 1978-11-28 | 1982-12-31 | Commissariat Energie Atomique | Recovery of uranium from phosphoric acid solutions |
| FR2460958A1 (fr) * | 1979-07-09 | 1981-01-30 | Elf Aquitaine | Nouveaux composes diphosphoniques, utiles a l'extraction des metaux lourds |
| ZW9882A1 (en) * | 1981-11-03 | 1983-02-02 | Mineral Tech Council | Selective solvent extraction using organophosphorus and carboxylic acids |
| ES517149A0 (es) * | 1982-11-05 | 1983-12-01 | Diaz Nogueira Gustavo | Procedimiento para la obtencion de sales de magnesio o sus disoluciones concentradas, de alta pureza, a partir de agua de mar, salmueras o disoluciones de sales de magnesio impuras. |
-
1984
- 1984-07-03 FI FI842668A patent/FI70049C/fi not_active IP Right Cessation
-
1985
- 1985-06-19 CA CA000484515A patent/CA1244246A/en not_active Expired
- 1985-06-24 SE SE8503139A patent/SE463495B/sv not_active IP Right Cessation
- 1985-06-26 IT IT8521285A patent/IT1188171B/it active
- 1985-07-02 DE DE19853523624 patent/DE3523624A1/de active Granted
- 1985-07-03 BE BE0/215294A patent/BE902810A/fr not_active IP Right Cessation
-
1987
- 1987-09-08 US US07/096,245 patent/US4818503A/en not_active Expired - Fee Related
-
1988
- 1988-08-29 US US07/237,988 patent/US5118478A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI842668A0 (fi) | 1984-07-03 |
| IT8521285A0 (it) | 1985-06-26 |
| FI70049C (fi) | 1986-09-12 |
| SE463495B (sv) | 1990-12-03 |
| DE3523624A1 (de) | 1986-01-09 |
| DE3523624C2 (enExample) | 1989-09-21 |
| SE8503139D0 (sv) | 1985-06-24 |
| SE8503139L (sv) | 1986-01-04 |
| US5118478A (en) | 1992-06-02 |
| US4818503A (en) | 1989-04-04 |
| IT1188171B (it) | 1988-01-07 |
| FI70049B (fi) | 1986-01-31 |
| BE902810A (fr) | 1985-11-04 |
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