DE2417510A1 - PROCESS FOR EXTRACTION OF METALS FROM Aqueous SOLUTIONS WITH ACID PHOSPHORUS COMPOUNDS - Google Patents
PROCESS FOR EXTRACTION OF METALS FROM Aqueous SOLUTIONS WITH ACID PHOSPHORUS COMPOUNDSInfo
- Publication number
- DE2417510A1 DE2417510A1 DE2417510A DE2417510A DE2417510A1 DE 2417510 A1 DE2417510 A1 DE 2417510A1 DE 2417510 A DE2417510 A DE 2417510A DE 2417510 A DE2417510 A DE 2417510A DE 2417510 A1 DE2417510 A1 DE 2417510A1
- Authority
- DE
- Germany
- Prior art keywords
- extraction
- salts
- metals
- acidic phosphorus
- acid
- 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.)
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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
- 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
- C22B3/385—Thiophosphoric acids, or esters thereof
-
- 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
- C22B3/3842—Phosphinic acid, e.g. H2P(O)(OH)
-
- 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
- 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
- C22B3/3846—Phosphoric acid, e.g. (O)P(OH)3
-
- 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
- C22B3/387—Cyclic or polycyclic compounds
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
/O IU Patente, Marken/ O IU patents, trademarks
und Lizenzenand licenses
Br-her 509 Leverkusen. BayerwerkBr-her 509 Leverkusen. Bayerwerk
9. April9th April
Verfahren zur Extraktion von Metallen aus wäßrigen LösungenProcess for the extraction of metals from aqueous solutions
mit sauren Phosphorverbindungenwith acidic phosphorus compounds
Die vorliegende Erfindung betrifft ein verbessertes Verfahren zur Extraktion von Metallen aus wäßrigen Lösungen mit sauren Phosphorverbindungen der allgemeinen FormelThe present invention relates to an improved method for extracting metals from aqueous solutions with acidic phosphorus compounds of the general formula
ρ; ■ (Dρ; ■ (D
OHOH
wobei R1 und R2 gleich oder verschieden sein können und für einen linearen oder verzweigten, gegebenenfalls substituierten aliphatischen, einen gegebenenfalls substituierten araliphatischen oder aromatischen Rest mit bis zu 18 C-Atomen stehen und wobei die organischen Reste unmittelbar oder über ein Sauerstoffatom an den Phosphor gebunden sein können.where R 1 and R 2 can be the same or different and represent a linear or branched, optionally substituted aliphatic, an optionally substituted araliphatic or aromatic radical with up to 18 carbon atoms and the organic radicals directly or via an oxygen atom to the phosphorus can be bound.
Die Extraktion von Metallen aus wäßrigen Lösungen mit sauren Phosphorverbindungen der obengenannten Art ist an sich bekannt (siehe z.B. Peter Markl, "Extraktion und Extraktionschronatographie in der anorganischen Analytik", Band I5 in der Reihe "Methoden der Analyse in der Chemie",The extraction of metals from aqueous solutions with acidic phosphorus compounds of the type mentioned above is on known (see e.g. Peter Markl, "Extraktion und Extraction chromatography in inorganic analysis ", Volume I5 in the series "Methods of Analysis in Chemistry",
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Akademische V^rlagsgesellschaft Prankfurt/Main, 1972). Es ist auch bekannt, daß die Metallextraktion mit solchen sauren Phosphorverbindungen vom pH-Wert abiJIngig ist. Im allgemeinen kann ein gegebenes Metall bei höheren pH-Werten in der Lösung besser extrahiert werden als bei niedrigem pH-Wert (K. Kimura, Bull. Chem. Soc. Japan 33, IO38 ff (i960)). So verbessern z.B. basische Zusätze wie NaOH, CaO, CaCO^, Na2HPO^, Na^PO^ das Extraktionsverhalten.Akademische V ^ rlagsgesellschaft Prankfurt / Main, 1972). It is also known that metal extraction with such acidic phosphorus compounds is dependent on the pH value. In general, a given metal can be extracted better at higher pH values in the solution than at low pH values (K. Kimura, Bull. Chem. Soc. Japan 33, IO38 ff (1960)). For example, basic additives such as NaOH, CaO, CaCO ^, Na 2 HPO ^, Na ^ PO ^ improve the extraction behavior.
Gegenstand der vorliegenden Erfindung ist nun ein Verfahren zur Extraktion von mehrwertigen Metallionen aus wäßrigen Lösungen oder Suspensionen ihrer Salza mit in Wasser schwerlöslichen sauren Phosphorverbindungen der allgemeinen Formel I, gegebenenfalls in Gegenwart von organischen Lösungsmitteln, dadurch gekennzeichnet, daß die Metallionen aus Lösungen oder Suspensionen extrahiert werden, die eines oder mehrere neutrale Salze der Salzsäure oder der Schwefelsäure in einer Konzentration von 0,01 Mol/l bis zur Löslichkeitsgrenze der neutralen Salze enthalten.The present invention now relates to a process for the extraction of polyvalent metal ions from aqueous solutions or suspensions of their salts with acidic phosphorus compounds that are sparingly soluble in water of the general formula I, optionally in the presence of organic solvents, characterized in that that the metal ions are extracted from solutions or suspensions which are one or more neutral Salts of hydrochloric acid or sulfuric acid in one concentration from 0.01 mol / l to the solubility limit of the neutral salts.
Überraschend hat sich herausgestellt, daß neutrale Ammonium-, Alkali- oder Erdalkalisalze der genannten Mineralsäuren wie z.B. NaCl, NH^Cl, Na3SO^, K2SO^, (Kffi^) 2S0^, CaCl2, MgSOj. die Extraktion von Metallen aus wäßrigen Lösungen mit sauren Phosphorverbindungen noch erheblich verbessern können.It has surprisingly been found that neutral ammonium, alkali or alkaline earth salts of the mineral acids mentioned, such as NaCl, NH ^ Cl, Na 3 SO ^, K 2 SO ^, (Kffi ^) 2 S0 ^, CaCl 2 , MgSOj. the extraction of metals from aqueous solutions with acidic phosphorus compounds can still improve considerably.
Die extraktionsfördernde Wirkung der angegebenen neutralen Salze starker Mineralsäuren ist eine neue Art von Synergismus und war nach den bisherigen Kenntnissen über den Extraktionsmechanismus nicht zu erwarten.The extraction-promoting effect of the stated neutral salts of strong mineral acids is a new kind of Synergism and was not to be expected based on the previous knowledge about the extraction mechanism.
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Während organische Zusätze, die in Verbindung mit einem Extraktionsmittel synergistisch wirken, die Extraktion fördern, aber dafür die Reextraktion erschweren (z.B. Zusätze von Trialkylphosphaten zu Dialkylphosphaten), haben die erfindungsgemäßen extraktionsfördernden Zusätze den letztgenannten Nachteil nicht, da sie selber kaum extrahiert werden und deshalb in der wäßrigen Phase zurückbleiben. Gegenüber basischen Zusätzen haben die extraktionsfördernden Salze den Vorteil, daß sie beim Extraktionsprozeß nur anwesend sein müssen, aber dabei nicht verbraucht werden.While organic additives that are used in conjunction with an extractant act synergistically, promote extraction, but make re-extraction more difficult (e.g. additives from trialkyl phosphates to dialkyl phosphates), the extraction-promoting additives according to the invention have not the last-mentioned disadvantage, since they are hardly extracted themselves and therefore remain in the aqueous phase. Compared to basic additives, the extraction-promoting salts have the advantage that they only have to be present during the extraction process, but are not consumed in the process will.
Ein weiterer Vorteil des erfindungsgemäßen Verfahrens besteht darin, daß ein gegebenes extraktionsförderndes Salz die Verteilungskoeffizienten zweier Metalle in der Regel unterschiedlich verändert. Daraus resultiert die Möglichkeit, die extraktive Trennung von Metallen durch Zugabe eines geeigneten extraktionsfördernden Salzes zu verbessern.Another advantage of the method according to the invention is that a given extraction-promoting Salt usually changes the distribution coefficients of two metals differently. This results in the Possibility of extractive separation of metals by adding a suitable extraction-promoting salt to enhance.
Die extraktionsfordernde Wirkung der Neutralsalze wird mit Zusätzen von etwa 0,01 Mol pro 1 Lösung bzw. Suspension bis zur Löslichkeitsgrenze der Zusätze erreicht; bevorzugt werden etwa 0,05 - 0,5 Mol zugegeben.The extraction promoting effect of the neutral salts is with Additions of about 0.01 mol per 1 solution or suspension reached up to the solubility limit of the additives; preferred about 0.05-0.5 moles are added.
Das erfindungsgemäße Verfahren eignet sich prinzipiell für die Extraktion sämtlicher Metalle, besonders geeignet ist es jedoch für Lösungen, die Zink und/oder dreiwertiges Eisen enthalten.The method according to the invention is suitable in principle for the extraction of all metals, but it is particularly suitable for solutions containing zinc and / or trivalent Contain iron.
Die Extraktion wird bei Temperaturen zwischen O0C und 75°C durchgeführt, bevorzugt wird jedoch im Temperaturbereich zwischen 15°C und 250C gearbeitet.The extraction is carried out 0 C and 75 ° C at temperatures between O, however, and is preferably carried out 25 0 C in the temperature range between 15 ° C.
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5 0-9844/049750-9844 / 0497
Als Phosphorverbindungen kommen z.B. folgende infrage:Possible phosphorus compounds include, for example, the following:
Phosphorsäure-di butylester Phosphorsäure-di-i/~"2-äthylhexyl-(l)_7-ester (DEHP) Phosphorsäure-phenyl-z/~2-äthylhexyl-(l)_/-ester (PEHP) Phosphorsäure-isodecyl-pentyl-ester Butanphosphonsäure-butylester Butanphosphonsäure-isobutylester 2-Methylpropan-phosphonsäure-butylester Pentanphosphonsäure-pentylester 2-Methylbutan-phosphonsäure-2-methylpropylester Hexanphosphonsäure-butylester Hexanphosphonsäure-hexylester (HHP) Isodecanphosphonsäure-butylester Octan-phosphonsäure-butylester Octan-phosphonsäure-octylester Benzylphosphonsäure-butylester Benzolphosphonsäure-pentylester Phenyl-butyl-phosphinsäure Dioctylphosphinsäure (DOP)Phosphoric acid di butyl ester Phosphoric acid di- i / ~ "2-ethylhexyl- (l) _7-ester (DEHP) Phosphoric acid phenyl- z / ~ 2-ethylhexyl- (l) _ / - ester (PEHP) Phosphoric acid isodecyl pentyl ester butyl phosphonic acid butyl ester butyl phosphonic acid isobutyl ester 2-methylpropane phosphonic acid butyl ester pentyl phosphonic acid pentyl ester 2-methylbutane phosphonic acid 2-methylpropyl ester hexanephosphonic acid butyl ester hexanephosphonic acid-butyl ester hexanephosphonic acid-octyl-phosphonate-octyl-phosphonate-butyl-phosphonate-octane-butyl-phosphonate (H-phosphonate-octyl-phosphonate-octane-phosphonate-octylphosphonate-octanylphosphonate-octanylphosphonate-octylphosphonate-butyl-phosphonate Benzylphosphonic acid butyl ester Benzene phosphonic acid pentyl ester Phenyl butyl phosphinic acid Dioctylphosphinic acid (DOP)
Die sauren Phosphorverbindungen können unverdünnt oder in einem wasserunlöslichen Lösungsmittel verwendet werden. Als Lösungsmittel kommen z.B. infrage: Benzol, Toluol, Xylole, Hexan, Cyclohexan, Heptan.The acidic phosphorus compounds can be used neat or in a water-insoluble solvent. Possible solvents are, for example: benzene, toluene, xylenes, hexane, cyclohexane, heptane.
Besonders geeignete Lösungsmittel sind hochsiedende, schwer entflammbare Fraktionen, wie sie bei der Erdöldestillation anfallen. Solche Erdölfraktionen werden z.B. unter den Handelsnamen Shellsol, Solvesso, Escaid angeboten.Particularly suitable solvents are high-boiling, flame-retardant fractions, such as those in petroleum distillation attack. Such petroleum fractions are offered, for example, under the trade names Shellsol, Solvesso, Escaid.
Die erfindungsgemäßen extraktionsfördernden Salze können prinzipiell in allen pH-Bereichen verwendet werden. Beson-The extraction-promoting salts according to the invention can in principle be used in all pH ranges. Special
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2A1751O2A1751O
ders vorteilhaft ist ihr Einsatz im eauren pH-BereichTheir use in the acidic pH range is also advantageous
(0 < pH <■ 5), weil hier die Verteilungskoeffizienten vieler(0 <pH <■ 5), because here the distribution coefficients of many
Metalle in Abwesenheit der genannten Salze zu niedrig liegen.Metals are too low in the absence of the salts mentioned.
Das erfindungsgemäße Verfahren soll nun anhand der folgenden Beispiele noch näher erläutert werden:The method according to the invention will now be based on the following Examples are explained in more detail:
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a) Ausgangslösungen:a) Starting solutions:
Die wäßrigen Ausgangslösungen enthielten im Liter jeweils 0,1 Mol des zu extrahierenden Metalls in Form von Chlorid oder Sulfat und wechselnde, in der Tabelle angegebene Mengen eines "extraktionsfordernden Salzes". Weitere Stoffe waren darin nicht enthalten.The aqueous starting solutions each contained 0.1 mol per liter of the metal to be extracted in the form of chloride or sulfate and varying amounts of an "extraction-promoting salt" given in the table. More fabrics were not included.
Die organischen Lösungen enthielten in 1 Liter im Falle der Dioctylphosphinsäure 0,2 Mol, in allen anderen Fällen 1 Mol der sauren Phosphorverbindung, Als Lösungsmittel wurde in allen Fällen ein Kohlenwasserstoff-Gemisch benutzt (Shellsol RA). Dieses Kohlenwasserstoff-Gemisch mit der Dichte 0,904 enthält 99 % Aromaten, hat einen Flammpunkt von 68°C und einen Siedebereich von I83 - 312°C.The organic solutions contained in 1 liter in the case of dioctylphosphinic acid 0.2 mol, in all other cases 1 mol of the acidic phosphorus compound. A hydrocarbon mixture was used as solvent in all cases (Shellsol RA). This hydrocarbon mixture with a density of 0.904 contains 99 % aromatics, has a flash point of 68 ° C and a boiling range of I83 - 312 ° C.
b) Versuchsdurchführung:b) Carrying out the experiment:
50 ml der wäßrigen Ausgangslösung und 50 ml der organischen Extraktionsmittel-Lösung wurden in Schütteltrichtern mittels einer Maschine ^O Minuten lang intensiv geschüttelt. Obwohl die Metallverteilung nach 2 Minuten und nach 30 Minuten Schüttelzeit innerhalb der Analysengenauigkeit gleich war, wurden die Gemisch 30 Minuten geschüttelt, um eine vollkommenere Gleichgewichtseinstellung zu erreichen.50 ml of the aqueous starting solution and 50 ml of the organic extractant solution were placed in separating funnels Shaken vigorously by means of a machine for ^ 0 minutes. Although the metal distribution after 2 minutes and after 30 minutes of shaking time is within the accuracy of the analysis was the same, the mixtures were shaken for 30 minutes to allow a more perfect equilibrium to reach.
Nach der Phasentrennung wurden die Metallgehalte in beiden Phasen mittels der Atomabsorptionsphotometrie bestimmt. After the phase separation, the metal contents in both phases were determined by means of atomic absorption photometry.
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c) Ergebnisse:c) Results:
Aus den gemessenen Konzentrationen CM der Metalle wurden die in der folgenden Tabelle angegebenen Verteilungskoeffizienten der Metalle d.. nach der FormelFrom the measured concentrations C M of the metals, the distribution coefficients of the metals indicated in the table below were obtained according to the formula
Cw (organische Phase) d.Cw (organic phase) d.
Me
berechnet.Me
calculated.
Me . CM (wäßrige Phase)Me. C M (aqueous phase)
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Salze":Salts ":
Metallsalz/Konzentra-
0,1 Mol Metall/l tion
der wäßr. Phase to be extracted
Metal salt / concentrate
0.1 mol metal / liter
the water phase
Salz extraction demanding
salt
wäßr. Phase
i/~~Mol/l_/7' Q
aq. phase
i / ~~ Mol / l_ / 7 '
verbindung/Kon
zentration in
der org. Phaseacidic phosphorus
connection / con
centering in
the org. phase
koeffizient
CMe(org.)Distribution
coefficient
C Me (org.)
σ
CD
OOcn ZnSO j,
σ
CD
OO
formelsubstance
formula
0,1
0,50.0
0.1
0.5
1-molarDEHP
1 molar
1 • IN Q. / ~ i ώ \ J ) ■
1
0,940.0
0.94
1-molarHHP
1 molar
2,04
2,92 d Zn =! '56
2.04
2.92
0,940.0
0.94
1-molar.PEHP
1 molar.
2,0 d Zn = I ' 2 *?
2.0
0,940.0
0.94
0,2-molarDOP
0.2 molar
^n
10,3 d 7n = 4.91
^ n
10.3
0,1
0,5
1,00.0
0.1
0.5
1.0
1-molarDEHP
1 molar
Zn 'J
1,54 d ^^ = 0.92
Zn ' J
1.54
1,89
2,50
3,54 d Zn - X '56
1.89
2.50
3.54
Le A 15 651Le A 15 651
Metallsalz/Konzentra-
0,1 Mol Metall/l tion
der wäßr. Phaseto be extracted
Metal salt / concentrate
0.1 mol metal / liter
the water phase
σcn
σ
Salzextraction-promoting
salt
wäßr. Phase
j/~Mol/l_J7 Q
aq. phase
j / ~ mol / l_J7
verbindung/ Kon
zentration in
der org. Phaseacidic phosphorus
connection / con
centering in
the org. phase
koeffizient
CMe(org.)Distribution
coefficient
C Me (org.)
ex» Na2MoO4 CXJ 1 "
ex »Na 2 MoO 4
formelsubstance
formula
0,1
0,50.0
0.1
0.5
1-molarDEHP
1 molar
■P-» ^
CO 0 Pe 2 (SO 4 ),
■ P- » ^
CO
1,00.0
1.0
1-molarDEHP
1 molar
2,02
2,96 d Zn - 1 ^
2.02
2.96
1,00.0
1.0
1-molarDEHP
1 molar
1,00.0
1.0
1-molarDEHP
1 molar
1,0 d Mc = ° ' 7
1.0
1,00.0
1.0
1-molarDEHP
1 molar
6,14Se = 2.23
6.14
1,00.0
1.0
1-molarDEHP
1 molar
3,81Se = 5.23
3.81
1,00.0
1.0
1-molarDSHP
1 molar
18,0Se - 3.23
18.0
1,00.0
1.0
1-molarDEHP
1 molar
257,5 Se = 2δ ' 4
257.5
171,7d Fe = 28.4
171.7
Le A 15 651Le A 15 651
cn ο co ex»cn o co ex »
COCO
Metallsalz/Konzentra-
O',l Mol Metall/l tioi
der wäßr. Phase to be extracted
Metal salt / concentrate
O ', l mole of metal / l tioi
the water phase
Salzextraction demanding
salt
wäßr. Phase
/^"Mol/lJ7Q
aq. phase
/ ^ "Moles / lJ7
verbindung/Kon
zentration in
der org. Phaseacidic phosphorus
connection / con
centering in
the org. phase
koeffizientDistribution
coefficient
formelsubstance
formula
1,00.0
1.0
1-molarDEHP
1 molar
1,00.0
1.0
1-molarDEHP
1 molar
1-molarDEHP
1 molar
0,126d sb = 0.091
0.126
CDCD
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- 10 -- 10 -
Claims (1)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2417510A DE2417510A1 (en) | 1974-04-10 | 1974-04-10 | PROCESS FOR EXTRACTION OF METALS FROM Aqueous SOLUTIONS WITH ACID PHOSPHORUS COMPOUNDS |
NO751058A NO751058L (en) | 1974-04-10 | 1975-03-26 | |
NL7504124A NL7504124A (en) | 1974-04-10 | 1975-04-07 | PROCEDURE FOR EXTRACTING POLYVALENT METAL IONS FROM WATER CONTAINING SOLUTIONS OR SUSPENSIONS OF ITS SALTS. |
JP50041924A JPS50141579A (en) | 1974-04-10 | 1975-04-08 | |
LU72237A LU72237A1 (en) | 1974-04-10 | 1975-04-08 | |
SE7504086A SE388129B (en) | 1974-04-10 | 1975-04-09 | WAY TO EXTRACT POLYVALENTAL METAL IONS FROM AUTOMATIC SOLUTIONS OR SUSPENSIONS OF THEIR SALTS THROUGH ACID PHOSPHORIUM COMPOUNDS |
ZA00752252A ZA752252B (en) | 1974-04-10 | 1975-04-09 | Extracting polyvalent metal ions with acid phosphorus and neutral chlorides and/or sulfates |
BE155231A BE827731A (en) | 1974-04-10 | 1975-04-09 | EXTRACTION OF VERSATILE METAL IONS WITH ACID AND PHOSPHORUS COMPOUNDS AND NEUTRAL CHLORIDES AND / OR SULPHATES |
FR7511270A FR2267380A1 (en) | 1974-04-10 | 1975-04-10 | Extracting polyvalent metal ions from aqs. soln. - with phosphorus acid cpds. in presence of a neutral sulphate of chloride salt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2417510A DE2417510A1 (en) | 1974-04-10 | 1974-04-10 | PROCESS FOR EXTRACTION OF METALS FROM Aqueous SOLUTIONS WITH ACID PHOSPHORUS COMPOUNDS |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2417510A1 true DE2417510A1 (en) | 1975-10-30 |
Family
ID=5912685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2417510A Pending DE2417510A1 (en) | 1974-04-10 | 1974-04-10 | PROCESS FOR EXTRACTION OF METALS FROM Aqueous SOLUTIONS WITH ACID PHOSPHORUS COMPOUNDS |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS50141579A (en) |
BE (1) | BE827731A (en) |
DE (1) | DE2417510A1 (en) |
FR (1) | FR2267380A1 (en) |
LU (1) | LU72237A1 (en) |
NL (1) | NL7504124A (en) |
NO (1) | NO751058L (en) |
SE (1) | SE388129B (en) |
ZA (1) | ZA752252B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246240A (en) * | 1978-07-24 | 1981-01-20 | Nippon Mining Co., Ltd. | Process for separating cobalt and nickel from a solution containing cobalt and nickel |
DE3140380A1 (en) * | 1981-10-10 | 1983-04-28 | Gebrüder Sulzer AG, 8401 Winterthur | Process for producing nickel, highly pure magnesium oxide and cement |
DE3523624A1 (en) * | 1984-07-03 | 1986-01-09 | Outokumpu Oy, Helsinki | METHOD FOR REMOVING AND RECOVERY METALS FROM AQUEOUS SOLUTIONS BY EXTRACTION |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4053552A (en) * | 1976-03-15 | 1977-10-11 | General Mills Chemicals Co. | Solvent extraction of zinc from sulfite-bisulfite solution |
FR2462481A1 (en) * | 1979-07-30 | 1981-02-13 | British Petroleum Co | METHOD FOR THE LIQUID-LIQUID EXTRACTION OF AQUEOUS SOLUTION-BASED METALS USING ORGANOPHOSPHORUS DERIVATIVES |
MA19257A1 (en) * | 1980-08-28 | 1982-04-01 | Canada Cyanamid | NEW PROCESS FOR SELECTIVE SEPARATION OF COBALT FROM AQUEOUS SOLUTIONS. |
FR2562059B1 (en) * | 1984-04-02 | 1989-12-01 | Rhone Poulenc Spec Chim | PROCESS FOR SEPARATING RARE EARTH BY LIQUID-LIQUID EXTRACTION |
USRE48165E1 (en) | 2014-10-17 | 2020-08-18 | Merck Patent Gmbh | Alkenyl (perfluoroalkyl) phosphinic acids |
-
1974
- 1974-04-10 DE DE2417510A patent/DE2417510A1/en active Pending
-
1975
- 1975-03-26 NO NO751058A patent/NO751058L/no unknown
- 1975-04-07 NL NL7504124A patent/NL7504124A/en unknown
- 1975-04-08 LU LU72237A patent/LU72237A1/xx unknown
- 1975-04-08 JP JP50041924A patent/JPS50141579A/ja active Pending
- 1975-04-09 BE BE155231A patent/BE827731A/en unknown
- 1975-04-09 ZA ZA00752252A patent/ZA752252B/en unknown
- 1975-04-09 SE SE7504086A patent/SE388129B/en unknown
- 1975-04-10 FR FR7511270A patent/FR2267380A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246240A (en) * | 1978-07-24 | 1981-01-20 | Nippon Mining Co., Ltd. | Process for separating cobalt and nickel from a solution containing cobalt and nickel |
DE3140380A1 (en) * | 1981-10-10 | 1983-04-28 | Gebrüder Sulzer AG, 8401 Winterthur | Process for producing nickel, highly pure magnesium oxide and cement |
DE3523624A1 (en) * | 1984-07-03 | 1986-01-09 | Outokumpu Oy, Helsinki | METHOD FOR REMOVING AND RECOVERY METALS FROM AQUEOUS SOLUTIONS BY EXTRACTION |
Also Published As
Publication number | Publication date |
---|---|
SE388129B (en) | 1976-09-27 |
BE827731A (en) | 1975-10-09 |
FR2267380A1 (en) | 1975-11-07 |
ZA752252B (en) | 1976-03-31 |
JPS50141579A (en) | 1975-11-14 |
SE7504086L (en) | 1975-10-13 |
NO751058L (en) | 1975-10-13 |
FR2267380B1 (en) | 1979-03-09 |
NL7504124A (en) | 1975-10-14 |
LU72237A1 (en) | 1976-03-17 |
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