US1124315A

US1124315A - Process for electrolytically refining tin.

Info

Publication number: US1124315A
Application number: US72086612A
Authority: US
Inventors: Georges Michaud; Eugene Delasson
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-09-17
Filing date: 1912-09-17
Publication date: 1915-01-12
Anticipated expiration: 1932-01-12

Description

G. MICHAUD E. DBLSSON.

PROCESS FOR ELETRLYTALLY HHNING TIN,

AILLUIAI'WN MLV SEPT. v7. wiz.

1 1 24, 315. mmm Jun. 1:2. 19151,

PROCESS PGR ELE Pzimte 5ml. l2, 191.5.

il SHEETS SHEET 2.

y To a wiom it may cm'ioem ononens niocannsnn EUGENE nnisssoii, on MoNTnEUIL, nunon. f

'YBCESS EUR ELECTROLYTICALL REFmNC-l Tlf.

Ee it known that we, Gnoizons and EUGENE Buisson, both'citizens oi the Repbiic ,of France, residing at 66 Rue Arsene Cherouu, Montreuil, Seine, in the Republic of France, have invented a 'cer-- ,tain new and usefui. improvement in infocgs'ses for Eiectroiytically Bening Tin, ci

@which the following is a. specification.

The invention which forms the objeci oi thisvappication for pat-ent and which refining of tin applicable to any conducing maeria containing tin or sewing io support it, is bas'ed essentiaily upon the compostion of time eioctrcyte n on the arrangemen rendering it. possb e byoontinuous circulation to insure a ermanen condition of sauisztlon to ine foie.

electi'oiyte and also upon thecomposition of the electrodes. v This process based upon the eiectioysisA of .a composite` tin salt renders is possioe to obtain' regulmiy 2.22 grs. of chemicaiiy pure tin per ampere hour and this in e. zii' more economcaimanne/r than with he ar- Ai'angciiients ordinarily onipojfed.

Composition of iw eec'roiyze.`hc composition of one eiectioye is as ioiiows pro to ohlorid of tin.J to which mamiesium chloiid. sind boris acid sie added. of tin dissolve@ in water is ociduiae with Suniio aci until the precipitate of hyfirate is oompietciy dssoived; at this moment 1% of magnesium ohlorid and 1% of' boiiio aci. are added to the 'liqnoin Foimz'mi. of the mimiek-Ehe :inocies are constituted either by the tin to' bo refined morsiy ponic in granular oim ino tiio wats? or any other conducting mfieifol' serving as snppoiil foi the tin.

Fofmoma of #is cozode's.-The cath-ados are oi e5; by fixed copper pizies arianged, on edge nd upon die opp@ es of which the deposit of pure in is ganci in nonadhesive afhoiesoenocs which of@ cozicncfi fand coiected 'by one of she :irrangcinens indicste in the drawings. These conoci piai'es may oe repiocc by any oiiei nriangenient pi'esening but a smaii surface in conteo?. with this eiectroiyte.

In oi'ici to v0.3 any solution of foreign metals in che eieotsplyte which Wouici result in @inducing an impure nie'mi must ne oontinuciisny sasuraeci.

This sato."

MICHAUD' Tie proto choiid "iiie latter vration iso'itcined in a trough contaningfoi' wase Ginny kind in Which the eioctroiyc circulates coming from theclectrolysis aniof This circulation is produced by' a pomoA which ietuins the iiquonto 'ne slectrolysisQv trink from which it arrived in an acid state.. ,89,5

In passing over the Waste it has dissbivedthe tin and again becomes Saturated. f

The homogeneity of the eiectrolytc is-obJ-ztained noi'J oniy by che ciicuiationofvsiic.

iql'i'fi' but also by .the agitation,pi'oduced' by the inovemeni; of the coilectors `which operato Iinthe electrolysis tank. fomhe pnrpose o' ooiieotin he pure tin produced.

Figuffs l A'2 iiiustrzie diaigrammati-j caiiy in .elevation and in plan respeciiyeiv..

:i form of'electroiizei' for the treatment ,il -ne granulated tin. Fig. 3, iilustijates modication oi" this apparatus. Fig. #i iHiis-,fy

suites a 'oi'ni of apparatus ntiiize fon tiiei a support for he tin. Y i

Figs l and 2: a is the elecioiysis vossel of' msniziting mace-.rmi containing the eiccff iroiyte. o is Wicker baske. lined with felt treatment of conducting material serving as; 75.;

(- c are cathode plates of coppe? ombedcieiir Y in 'on insiiiafing body and Aiipoiniiic,uppeij efige'o which the re-ined tin is depositedin. the-siate o non-ihcsivc crysaiiine aanhoren@ cences, Z d ae vessels into which the'fcoifA lector by moans of o ieoipiocn-inginlove? mont from io y oiccs the in deposied upon one cahoiie pistes c inpioportion as it is foimed.

It is from these vesseis it is iiien Withdrawn for casting it into o@ inge-s. e is o coppei biock oy means o' which the corrono is brongii into conao. with the tin so no i'ene. is the posii'cii'oy conductor. g is the negative conductor. .Zi

are ooilectos mounted at eaoii extreniiy g5 z' is siie estimating is the eiccroiysis tank. b is the basket containg5 ing 'the mateizii under tijeanicn. c are the oatiiofie plates upon which the pure tin is depostoi. i is the tank mi ine ecepion oi is piouced. ino .the ifesscisioo it into the tank k.

y ductor.

positive conductors.

the pure tin. e is the copper block by means of which the current is brought into contact with the tin to be relined. f is the positive conductor. g is the negative conz are collectors mounted upon an endless chainh serving to force the refined tin as it is produced into the vessel d.

Fig. 4 is an apparatus for the treatment of any conducting material serving as support for the tin (tinncd iron Waste for example). a is the electrolysis tank. b is thematerial from which the tin is to be removed forming the anode. 'b2 is an endlessl chain which conducts the material from which the tin is to be removed and which carries the collectors. c are the cathode plates upon `which the pure tin is deposited. el is,t`he

tank receiving the pure tin. e are flexible strips through which the current enters; these strips may vary in number. f are'the y is the negative coinh are collectors mounted on the is the small endless chain con ductor` cha in L2.

veyer which receives the material deprived of its tin from the chain b: a7 discharges No means are shown for circulating the electrolyte over tin waste in Figs. 3 and el, but it will ,be understood that means similar to that shown in Fig. 2, or other means, will he employed for this purpose.

What .we claim and desire to sccureby Letters Patent of the United States is 1. A process of refining tin by electrolysis which consists in passing an electric cur rent from an anode of impure tin to a cathodc through an electrolyte of high conduc.

tivity composed of protochlorid of tin l0() kilograms, sulfuric acid l0 kgs., magnesium chlorid 1 kg., boric acid l kg., and the requisite quantity of distilled Water in order that the solution should mark 20 Baume.

2. A process of refining tin by electrolysis which consists in passing an electric current from an anode of impure tin through an electrolyte of high conductivity composed of protochlorid of tin 100 kilograms, sulfuric acid 10 kgs., magnesium chloridl kg., boric acid l kg., and the requisite quantity of distilled water in lorder that the solution should mark 20 Baume, to a cathode with active surface equal to ot' the active sur face of the anode` Vand collecting automatically and continuously' the refined tin. de-

posited on the cathode.

A process of rcining tin by clef-trolysis which consists in passing an electric current from an anode of impure tin through an electrolyte of high conductivity composed ol protochlorid ot' tin lll?) kilograms, sulfuric acid lo i-cgs., inagifusuw ffhlorio l Lg., boric acid 1 kg., and the rw,y -site quantity of distilled wat-iii' in order that the s0- iution should mark 20" Baume, to a cathode with active surface equal to 22'?, of the active surface of the anode, collecting automatically and continuously the refined tin deposited on the cathode, the saturation of the electrolyte being maintained constant by a continuous circulation oiu the said electrolyte through a saturation tank containing este tin.

In testimony 'whereof we .-.ifilx our signa# turcs in presence of two witnesses.

GEORGES MICHAUD. EUGli-JE DELASSON.

Witnesses:

ILxxso C. CoxE, Vic'rou MA'TuAY.