BE372994A - Process for purifying the electrolyte in the electrolytic manufacture of zinc - Google Patents

Process for purifying the electrolyte in the electrolytic manufacture of zinc

Info

Publication number
BE372994A
BE372994A BE372994A BE372994A BE372994A BE 372994 A BE372994 A BE 372994A BE 372994 A BE372994 A BE 372994A BE 372994 A BE372994 A BE 372994A BE 372994 A BE372994 A BE 372994A
Authority
BE
Belgium
Prior art keywords
electrolyte
zinc
antimony
purification
cobalt
Prior art date
Application number
BE372994A
Other languages
French (fr)
Original Assignee
Norske Zinkkompani As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR700977D priority Critical patent/FR700977A/en
Application filed by Norske Zinkkompani As filed Critical Norske Zinkkompani As
Priority to BE372994A priority patent/BE372994A/en
Publication of BE372994A publication Critical patent/BE372994A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/16Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)

Description

       

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



  " Procède pour purifier l'cloctrolyte dans la fabrication eloctrolytique du zinc " 
 EMI1.2 
 Dans la larri .tion ulectrolytiquo du zinc, il 
 EMI1.3 
 est d'une importance capitale d'éliminer aussi complète- 
 EMI1.4 
 ment que possible de l'eleotrolyte tous les corps qui peuvent se déposer' e.i inÙr ie temps que le zinc pendant 1'élcistrolyse, ';0 qui n pour {OléJrlnOllo soit l'inpurote du zinc, soit la reaico7¯u;ion de ce uùrnler et, par suite, une diminution d:;.u:': loe l':'1,-lo .i#;;"i du courant électrique. 

 <Desc/Clms Page number 2> 

 



   Dans les installations électrolytiques du zinc, o-n purifie habituelle ment les solutions contenant du zinc en leur ajoutant de la poudre ou de la poussière de zinc. 



  ,Par ce   procédé,on   élimine le cuivre, le cadmium, le plomb, et un certain nombre d'autres métaux. Cependant en utili- sant la poudre de zinc seule on ne peut éliminer de la solution le cobalt, le nickel, l'étain, le germanium, le molybdène, le vanadium, ot un certain nombre d'autres métaux. Or la plupart des minerais de zinc contiennent plus ou moins de cobalt qui s'accumule dans la solution de zinc en circulation ce qui nécessite soit des   procèdes   spéciaux pour éliminer le cobalt, soit le renouvellement d'une partie de la solution de zinc en circulation, de manière à   maintenir     constante la   quantité de cobalt qui se trouve dans la solution qui circule dans le   ruinerai.   



   On a déjà proposéun grand   nombre   deprocédés de purification pour éliminer le cobalt tels que   l'addi-   tion de beta-nitronaphtol ou d'arsenic, de cuivre et de poudre de zinc, en chauffant. 



   Pourtant on ne connaît aucun procédé sûr pernet- tant d'éliminer le   nickel   ou le  germanium.   L'inventeur a pu   démontrer   que   l'eu     élimine     complètement   le cobalt, lo nickel,   l'étain,   le   Germanium,   le   molybdène,   lo vanadium et les autres métaux que la simple addition de poudre de zinc n'a pu réussir à éliminer de la solution, en ajoutant 

 <Desc/Clms Page number 3> 

 à une solution neutre ou lég   croient   acide;, en même   ternes   que la poudre de zinc, une petite quantité d'antimoine 
 EMI3.1 
 ou d'un ('O1POfJ' >1 <1 ' ,1 :1'; 1 ..i  'L <1> . 



  11 n' iiJt p::i; :.;;:..,..i¯'o de arraull'er la solution pour obtenir le cÉ5àl:,>-t ucsire et il n'est pas nécessaire   davantage   d'opérer   sur   une solution filtrée ou limpide 
 EMI3.2 
 ni mené d'elininer les substances organiques qui dans certains oasy peuvent se trouver dans la solution, Lu quantité cl'lrl'ciJllOii10 nécessaire pour cette épuration L.uptjnd jU:;f"!L.lt., ,1'.Y ...;i".;.ii: poij-t du lu quantité Li vO!Jo.1t, ,àLa uiu:¯:ly c.;,........ é l itniiàar o .'oL1i> tai:L l'inven- tour a trouve qu'il n'était ju '1'.,is nécessaire d'ajouter une quantité el ':\nti>:lOh10 supérieure .' la quantité do cobalt existant ,o.j1U la :301uLio1.. 



  Par exemple une quantité d'antinoine de 10 rnilli- gram'nes par litre précipite CO.I[Jl'J':"vlel1t, au bout d'une heu-. mvi'omy 14 '.i1.il"!....u.i du \julJ .i¯j; ut 10 na1.11ma..ma du nickel par litre d8 solution du sulfate de zinc que l'on a ç 1 on lui ajoutcnt 0.1 .w¯-., tUYjpS r ù la poudre de zinc. 



   Les solutions de zinc utilisées dans la fabri- cation électrolytique du zinc contiennent la plupart du temps une petite   quantité   de   cuivre,   mais si la solution que l'on veut traiter ne contenait pas de cuivre, il serait 
 EMI3.3 
 prrrublc d'ajouter unu putito quantité de co métal ou d'un de ses composés à la solution car une telle addition accroît l'efficacité de la purification. 

 <Desc/Clms Page number 4> 

 



    Inexpérience   a prouvé que l'antimoine   ainsi   
 EMI4.1 
 ajouté est uOEpldte;1::mt ûlirÜè10 on pratique on :'ic:..r.: tuiles que la pondre do zinc et leu 1mplll'0LoiJ qui Ho déponent,   de'   sorte que cet   antimoine   ne peut avoir d'action nui- sible sur l'électrolyse.



   <Desc / Clms Page number 1>
 
 EMI1.1
 



  "Proceeds to purify the electrolyte in the eloctrolytic manufacture of zinc"
 EMI1.2
 In the ulectrolytic loss of zinc, it
 EMI1.3
 is of utmost importance to eliminate as completely-
 EMI1.4
 as possible of the eleotrolyte all the bodies which can be deposited 'ei inÙr the time that the zinc during the ecistrolysis,'; 0 which n for {OléJrlnOllo either the zinc inpurote or the reaico7¯u; this uùrnler and, consequently, a decrease d:;. u: ': loe l': '1, -lo .i # ;; "i of the electric current.

 <Desc / Clms Page number 2>

 



   In zinc electrolytic plants, solutions containing zinc are usually purified by adding zinc powder or dust to them.



  This process removes copper, cadmium, lead, and a number of other metals. However, using zinc powder alone, cobalt, nickel, tin, germanium, molybdenum, vanadium and a number of other metals cannot be removed from the solution. However, most zinc ores contain more or less cobalt which accumulates in the zinc solution in circulation which requires either special procedures to eliminate the cobalt, or the renewal of part of the zinc solution in circulation. , so as to maintain constant the quantity of cobalt which is in the solution which circulates in the ruinerai.



   A large number of purification methods have already been proposed for removing cobalt such as the addition of beta-nitronaphthol or arsenic, copper and zinc powder, by heating.



   However, no reliable process is known to remove nickel or germanium. The inventor was able to demonstrate that eu completely eliminates cobalt, nickel, tin, germanium, molybdenum, vanadium and other metals which the simple addition of zinc powder could not succeed in removing from the solution, adding

 <Desc / Clms Page number 3>

 to a neutral or slightly acidic solution;, together with the dull zinc powder, a small quantity of antimony
 EMI3.1
 or a ('O1POfJ'> 1 <1 ', 1: 1'; 1 ..i 'L <1>.



  11 n 'iiJt p :: i; :. ;;: .., .. ī'o de arraull'er the solution to obtain the cÉ5àl:,> - t ucsire and it is not necessary further to operate on a filtered or clear solution
 EMI3.2
 nor led to eliminate the organic substances which in some oasy may be found in the solution, Lu quantity cl'lrl'ciJllOii10 necessary for this purification L.uptjnd jU:; f "! L.lt.,, 1'.Y. ..; i ".;. ii: poij-t of the quantity Li vO! Jo.1t,, àLa uiu: ¯: ly c.;, ........ é l itniiàar o .'oL1i> tai: The inventor found that it was not ju '1'., it is necessary to add a greater quantity el ': \ nti>: 10h10.' the quantity of existing cobalt, o.j1U la: 301uLio1 ..



  For example an amount of antinoine of 10 milligrams per liter precipitates CO.I [Jl'J ': "vlel1t, after one hour. Mvi'omy 14' .i1.il"! .. ..ui of \ julJ .īj; ut 10 na1.11ma..ma of nickel per liter d8 solution of zinc sulphate which we have to it we add 0.1 .w¯-., tUYjpS r ù zinc powder.



   Zinc solutions used in the electrolytic manufacture of zinc mostly contain a small amount of copper, but if the solution to be treated did not contain copper, it would be
 EMI3.3
 prrrrublc to add a putito quantity of co metal or one of its compounds to the solution because such addition increases the efficiency of the purification.

 <Desc / Clms Page number 4>

 



    Inexperience has proven that antimony as well
 EMI4.1
 added is uOEpldte; 1 :: mt ûlirÜè10 one practices one: 'ic: .. r .: tiles that the laying of zinc and their 1mplll'0LoiJ which Ho deponent, so that this antimony cannot have any harmful action. sible on electrolysis.


    

Claims (1)

R E S U M E L'invention a pour objet: 1 .- Un procède pour purifier l'électrolyte des- tiné à la fabrication électrolytique du zinc, ce procède consistant à ajouter à cet électrolyte de l'antimoine ou un composé d'antimoine afin de précipiter le cobalt, le nickel, le germanium et d'autres impuretés nuisibles. ABSTRACT The subject of the invention is: 1 .- A process for purifying the electrolyte intended for the electrolytic manufacture of zinc, this process consisting in adding to this electrolyte antimony or an antimony compound in order to precipitate cobalt, nickel, germanium and other harmful impurities. 2 .- Un mode de réalisation du procède précité consistant à utiliser l'antimoine ou les composes d'anti- moine.ainsi que la poudre.de zinc, l'antimoine ou les con- EMI4.2 posta ù' nnlj:1.):1oinl) ubunt ajouboa ci :1t7. c..ïrc.;y'î,u on l'u:1.1.1] quantité avant l'épuration par la poudre de zinc ou pondant cette épuration. 2 .- An embodiment of the aforementioned process consisting in using the antimony or the antimony compounds, as well as the zinc powder, the antimony or the compounds. EMI4.2 posta ù 'nnlj: 1.): 1oinl) ubunt ajouboa ci: 1t7. c..ïrc.; y'î, u one u: 1.1.1] quantity before the purification by the zinc powder or during this purification. 3 .- Un mode d'application du procédé précité con- sistant: à ajouter à l'électrolyte une quantité d'anti- .moine, correspondant sensiblement à la quantité de cobalt ou d'autres métaux contenus dans l'électrolyte que l'on désireéliminor, si l'électrolyte ne contient pas de cuivre, à ajouter du cuivre ou des composés de ce métal à l'électro- lyte avant ou pendant l'épuration. 3 .- One mode of application of the aforementioned process consisting of: adding to the electrolyte a quantity of antimony, corresponding substantially to the quantity of cobalt or other metals contained in the electrolyte that the. it is desired to eliminate, if the electrolyte does not contain copper, to add copper or compounds of this metal to the electrolyte before or during the purification.
BE372994A 1930-08-22 1930-08-27 Process for purifying the electrolyte in the electrolytic manufacture of zinc BE372994A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR700977D FR700977A (en) 1930-08-22 1930-08-22 Process for purifying the electrolyte in the electrolytic manufacture of zinc
BE372994A BE372994A (en) 1930-08-22 1930-08-27 Process for purifying the electrolyte in the electrolytic manufacture of zinc

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR700977T 1930-08-22
BE372994A BE372994A (en) 1930-08-22 1930-08-27 Process for purifying the electrolyte in the electrolytic manufacture of zinc

Publications (1)

Publication Number Publication Date
BE372994A true BE372994A (en) 1930-09-30

Family

ID=45879092

Family Applications (1)

Application Number Title Priority Date Filing Date
BE372994A BE372994A (en) 1930-08-22 1930-08-27 Process for purifying the electrolyte in the electrolytic manufacture of zinc

Country Status (2)

Country Link
BE (1) BE372994A (en)
FR (1) FR700977A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE783549A (en) * 1972-05-16 1972-09-18 Mines Fond Zinc Vieille PROCESS FOR PURIFYING ZINC SULPHATE SOLUTIONS FROM THE LEACHING OF ZINC ORES.
NL182494C (en) * 1975-06-04 1988-03-16 Shell Int Research METHOD FOR PURIFYING A ZINC SULPHATE SOLUTION

Also Published As

Publication number Publication date
FR700977A (en) 1931-03-10

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