CS224993B1 - The solvent extraction of the palladium from solutions of the nitric acid - Google Patents
The solvent extraction of the palladium from solutions of the nitric acid Download PDFInfo
- Publication number
- CS224993B1 CS224993B1 CS668082A CS668082A CS224993B1 CS 224993 B1 CS224993 B1 CS 224993B1 CS 668082 A CS668082 A CS 668082A CS 668082 A CS668082 A CS 668082A CS 224993 B1 CS224993 B1 CS 224993B1
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- CS
- Czechoslovakia
- Prior art keywords
- palladium
- nitric acid
- solutions
- extraction
- solvent extraction
- Prior art date
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 title claims description 25
- 229910052763 palladium Inorganic materials 0.000 title claims description 12
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 title description 3
- 238000000638 solvent extraction Methods 0.000 title 1
- 238000000605 extraction Methods 0.000 claims description 10
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 3
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 3
- 239000013522 chelant Substances 0.000 claims description 2
- 229910052963 cobaltite Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- GJLUFTKZCBBYMV-UHFFFAOYSA-N carbamimidoylsulfanyl carbamimidothioate Chemical compound NC(=N)SSC(N)=N GJLUFTKZCBBYMV-UHFFFAOYSA-N 0.000 claims 1
- 238000000855 fermentation Methods 0.000 claims 1
- 230000004151 fermentation Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 description 7
- 229910002651 NO3 Inorganic materials 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- VFNGKCDDZUSWLR-UHFFFAOYSA-N disulfuric acid Chemical class OS(=O)(=O)OS(O)(=O)=O VFNGKCDDZUSWLR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WHDGWKAJBYRJJL-UHFFFAOYSA-K ferbam Chemical compound [Fe+3].CN(C)C([S-])=S.CN(C)C([S-])=S.CN(C)C([S-])=S WHDGWKAJBYRJJL-UHFFFAOYSA-K 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- LQNUZADURLCDLV-IDEBNGHGSA-N nitrobenzene Chemical group [O-][N+](=O)[13C]1=[13CH][13CH]=[13CH][13CH]=[13CH]1 LQNUZADURLCDLV-IDEBNGHGSA-N 0.000 description 1
- UUZZMWZGAZGXSF-UHFFFAOYSA-N peroxynitric acid Chemical compound OON(=O)=O UUZZMWZGAZGXSF-UHFFFAOYSA-N 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Description
Vynález ea týká spósobu rezpúšfadlevej extrakci© paládia z reztekev kyseliny dusičnej.The present invention relates to a process for the smooth extraction of palladium from nitric acid slices.
Extrakcia paládia z dusičnanových reztekev prichádza de úvahy pri spraoúvaní rúd, ale najmá vyherenéhe jadrevéhe paliva· Paládium je jedným z cenných štiepnych preduktev, která vznikájú s vysekým výtažkem a ich tvorba v reaktorech može preslahnuť príredné zdroje· Extrakcia paládia béla vsak doteraz študovaná prevažne z halogenidevéhe prostredia, ako extrakčné činidlá sa používajú tributylfosfát a terciárně aminy· Extrakcia terciárnymi amínami a kvartdrnymi ammenievými selami je možná i z dusičnanového prostredia, pričom vznikajú problémy s neurčitosťou chemického stavu paládia v dusičnanových reztekeoh a vplyvem příměsí na extrakciu·Palladium extraction from nitrate resins comes into consideration in ore management, but the least spent nuclear fuel · Palladium is one of the valuable fission precursors that are produced with high yields and their formation in reactors may overreach resources Extraction with tertiary amines and quaternary ammonium salts is also possible from the nitrate environment, creating problems with the uncertainty of the chemical state of the palladium in nitrate resects and the effect of impurities on the extraction.
Túte nevýhodu v podstatnej miere odstraňuje sposob rezpúsťadlevej extrakcie paládia z roztokov kyseliny dusičnej podlá vynálezu kterého podstata spočívá v tem, že paládium ve ferme kati snového ohelátu sa extrahuje nitrebenzénevými roztokmi halegénderivátev dikarbelidu kobaltitéhe. Xatienevé cheláty sa pripravia z dvejfunkčnýoh ligandov obsahujúcich denárové atomy dusíka a síry ake sú 2-teneyltrifluereaoetén, 1,10-fenantrelín, ,£p?-dipyridyl, hexametyléntetramín alebe fermamidíndisulfid· '^^^řiez/^uzíva poznatek, že nitrebenzénevé roztoky dikarbelidu kebaltitéhe a jeho halegénderivátev extrahujú dobré velké hydrefebne katieny aj ze silné kysléhe prostredia· Ak sa k dusičnanovému rozteku přidá ve vodnej alebe kontaktovanej erganlokej fáze Činidle, kterého molekula alebe anién Lz (z»0, -1) tvoří s paládiem katiénevý chelátThis disadvantage is substantially eliminated by the method of palladium extract extraction from nitric acid solutions according to the invention, which is characterized in that the palladium in the cationic fermate semen is extracted with nitrebenzene solutions of the cobaltite dicarbelide halide derivative. Xatien chelates are prepared from bifunctional ligands containing denar nitrogen and sulfur atoms such as 2-teneyltrifluereaoethene, 1,10-phenanthrelin, n-p-dipyridyl, hexamethylenetetramine or fermamidine disulfide solutions. kebaltite and its halogenated derivatives extract good large hydrephebic cations even from strong acidic environments · When a contacted erganlocase phase is added to the nitrate sparge in the aqueous or contacted phase, a reagent whose molecule or anene L z (z »0, -1) forms cationic chelate with palladium
- hPA2 + LZ v ‘y Pdl/2**Z)+ 224 993 bude sa tente katién efektívne vymieňat za iný katién (H+, Cs+) z erganickej fázy :- hPA 2 + L Z v ' y Pdl / 2 ** Z ) + 224 993, this cation will be effectively exchanged for another cation (H + , Cs + ) from the erganic phase:
ρω(2-ϋ)+ +-^ =_ pJi;<2-í)+ +h+ ρω (2-ϋ) + + - ^ = _ pJi; <2-)) + + h +
V praxi sa može tente peznatek využit na selektívnu extrakoiu paládia pe extrakcii oézia®In practice, this broom can be used for selective palladium extraction for oesium® extraction
Příklad 1Example 1
Reztek 0,1 g.dm^ paládia v 1 M HNO^ sa pri teplete 25 *C extrahuje revnakým ebjemem 0,05 M dibrémderivátu dikarbelidu kebaltitéhe (áalej : Br^DGC) alebe hexaohlérderivátu (áalej : ClgDCC) a 0,05 M teneyltriflueracetenu v zmesi nitrebenzén-chlerid uhličitý (1:1)· Výtažek extrakoie za 1,5 h^d| je 61 % a pe 8 hedináoh 96 %.The slice of 0.1 g.dm @ 2 of palladium in 1 M HNO4 at 25 DEG C. is extracted with a reversible volume of 0.05 M dibarbelide debaritide (hereinafter: Br ^ DGC) or hexaohlererivative (hereinafter: ClgDCC) and 0.05 M teneyltriflueracetene. in a mixture of nitrebenzene-carbonyl chloride (1: 1) · Extraction yield in 1,5 h ^ d | is 61% and pe 8 hedges 96%.
Příklad 2Example 2
Extrahuje sa ake v příklade 1 s revnakým ebjemem 0,01 M 2,2*-dipyridylu a 0,01 M BrgDCC alebe ClgDCC v nitrebenzéne· Pe 10 min extrakoii je výtažek 99 %· řríklad 3Extract with AKE in Example 1 with 0.01 M revnakým ebjemem -dipyridylu 2.2 * and 0.01 M BrgDCC or ClgDCC the nitrebenzéne Pe · 10 min extrakoii extract is 99% · Additional examples of 3
Extrahuje sa ake v příklade 1 s revnakým ebjemem 0,01 M 1,10fenantrelínu + 0,01 M BrgDCC alebe ClgDCC v nitrebenzéne* Výtažek pe 10 minútevej extrakcii je 99 %·Extract as in Example 1 with a reversible volume of 0.01 M 1,10phenanthroline + 0.01 M BrgDCC or ClgDCC in nitrebenzene * The yield for 10 minutes extraction is 99% ·
Příklad 4Example 4
K Pd2+ v 1 M HNO^ sa pri teplete 25 ®C přidá hexametyléntetramín de kencentráoie 0,1 M a extrahuje sa 2 h|d{ nitrebenzénevým reztekem 0,01 M BrgDCC· Výtažek je 57 %·To the Pd 2+ in 1 M HNO 4, at a temperature of 25 ° C, add hexamethylenetetramine with a concentration of 0.1 M and extract for 2 h with a nitrobenzene residue of 0.01 M BrgDCC · Yield 57% ·
-ύPríklaí 5-ύExample 5
224 993224 993
K rezteku ak· v příklade 4 aa přidá fermamidíndieulfiá <· kenoentrácie 2 g.da^ * extrahuje ea 2 k|4 aitrebenzánevým reztekea 0,01 M BrgDGG· Výtažek je 83 %·To the residue, if in Example 4 aa, add fermamidine disulfates <2 k.da ^ *, extracts e 2 k and 4 to 4% by weight of 0.01 M BrgDGG · 83% yield ·
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS668082A CS224993B1 (en) | 1982-09-17 | 1982-09-17 | The solvent extraction of the palladium from solutions of the nitric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS668082A CS224993B1 (en) | 1982-09-17 | 1982-09-17 | The solvent extraction of the palladium from solutions of the nitric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS224993B1 true CS224993B1 (en) | 1984-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS668082A CS224993B1 (en) | 1982-09-17 | 1982-09-17 | The solvent extraction of the palladium from solutions of the nitric acid |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS224993B1 (en) |
-
1982
- 1982-09-17 CS CS668082A patent/CS224993B1/en unknown
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