DEP0049165DA - Process for the separation of tantalum and niobium - Google Patents
Process for the separation of tantalum and niobiumInfo
- Publication number
- DEP0049165DA DEP0049165DA DEP0049165DA DE P0049165D A DEP0049165D A DE P0049165DA DE P0049165D A DEP0049165D A DE P0049165DA
- Authority
- DE
- Germany
- Prior art keywords
- des
- tantalum
- separation
- niobium
- iob
- 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
- 229910052715 tantalum Inorganic materials 0.000 title description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 title description 6
- 238000000926 separation method Methods 0.000 title description 4
- 238000000034 method Methods 0.000 title description 3
- 229910052758 niobium Inorganic materials 0.000 title description 3
- 239000010955 niobium Substances 0.000 title description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 title description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- -1 hydrogen- Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 206010037833 rales Diseases 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
Description
Patenfanwä'te
(16) Frankfurt &. M./ ϋ-"...3^.Sponsor attorney
(16) Frankfurt &. M. / ϋ - "... 3 ^.
Frankfurt am MaIa1 denFrankfurt on May 1st
Bodetfe. G§a&rale Mfetallitfgiqu© de Bobokea, 8oci§t§. Hobokea-OLes-^nvers v Belgien«,·Bottom tray. G§a & rale Mfetallitfgiqu © de Bobokea, 8oci§t§. Hobokea-OLes- ^ nvers v Belgium «, ·
Verfahren zur Trennung iron !Tantal and Niob«Process for the separation of iron! Tantalum and Niobium «
Di© Erfindung ,bezieht sich, .auf die Trennung vonThe invention, refers, to the separation of
«tt£-4iÄ-toe*»tt»&-Äeö Tantal^ mn» Bi ob aas oasydisohen Gemischen, Die chemische aehnlichk'eit der erwähnten beiden Metalle macht bekanntlich ihre frexmung besonders schwierig.""Tt £ -4iÄ-toe *" tt "& - Äeö Tantalum ^ mn" Bi ob aas oasydisoid mixtures, The chemical similarity of the two metals mentioned makes their expression particularly difficult, as is well known. "
auf C£ron<l der Festste!lung, dass die höhere Valens!' von''$iob, verglichen mit .der dee Tantals, schwach ist, hat iaan diese Tatsache für die analyse durch selektive Redaktion des Mobs' in ©iti©r sauren Lös tang nutssbar gemacht* JSs ist au.eh bereits bekannt, dass"das Nioboacyd «it-Hilfe von Wasserstoff bei hoher'Temperatur'selektiv redualert werden kann« So kaan man ge'ße aus Kiobpentoxy<ä durch Behandlung ,®it Wasserstoff bei 12ooö Nt-obt«tro:xyd nach folgender Gleichungon Céron <l the statement that the higher valens! ' from '' $ iob is weak compared to the dee tantalum, iaan has made this fact useful for the analysis by selective editing of the mobs in © iti © r sauren Lös tang * JSs is also already known that " the Nioboacyd "it help can be redualert of hydrogen at hoher'Temperatur'selektiv" Thus, g kaan e 'ß e from Kiobpentoxy <ä by treatment ®it hydrogen at 12oo ö Nt-obt "tro: xyd according to the following equation
Ss mrd® ifiiuö gefunden,.' dass Hlobtetroxyd in Gegenwart ύοώ. fantalo3^d leicht Ghlorierbar i«3t genass d©r Formel O^ ♦ 5 0I2 - 2»bCnL5 ♦ -4Ss mrd® ifiiuö found. ' that Hlobtetroxyd in the presence ύοώ. fantalo3 ^ d easy to chlorinate i «3t wet the formula O ^ ♦ 5 0I 2 - 2» bCnL 5 ♦ -4
Erfindun'gßgeaäss »ird die -Rrenntuig des ^iobs von · tantal vermittels einer Redaktion mit anschilassender Chlorierung in' einer Beihe vor wiederholten Operationen durchgeführt, •bei denen jedesmal etwa 2oi des Niobs eliminiert werden*According to the invention, tantalum's job is done by means of editing with subsequent chlorination carried out in a row before repeated operations, each time about 2oi of the niobium are eliminated *
Tim* Vorgang kann durch folgende Formel veranschaulicht «erden, bei der η die ',nzahl der RoduutioasChlorierungen bedeutet; 2 The process can be illustrated by the following formula, in which η denotes the number of chlorinations; 2
o,8ß Mh de« in deia
nen fib· o.8 ß Mh de «in deia
nen fib
Xtu? praktischen fei^irfclicfmng der KrftnduiiK wird eict Attfsga&gsmterial verwandet, das aus eines? r-'ischung von Oxyden besteht tiod vorteilhaft vorher prüeipitiert istβ Bas O^dgesmittCh u'ird auf eine ant^rhnlb 12oo° femperattir, voraagsvjeise auf -etwa 9oo° in einer wasserstoff-Xtu? practical fei ^ irfclicfmng der KraftnduiiK is eict attfsga & gsmterial used, which consists of one? There is a mixture of oxides, which is advantageous beforehand, is β Bas O ^ dgesmittCh u'ird to an ant ^ rhnlb 12oo ° temperature, anticipated to -about 90 ° in a hydrogen-
erhitat. i)ie Temperatur wird alsdartn bis auf bis 5>oo° ermässigtg a&r i."asß©rstoff durch ein ne&fcrales Gan verdrängt unö.die Chlorierung «Ehrend eiiaiger Stunden durchgeführt, && die !!©^Ätioß Ka?e1 reversibel ist, empfiehlt es sieh? trockenen wasserstoff au verwenden, um Heoxydation gebildeten Tetroxids au venaeiden. i.uaserde® ist die iaiwesea«- heit von i-'tickstoff «äferend der Reduktion za vermeiden^ dg bejL den Beduktionatemperatureii Äfiguiig zar Bildung von Nitrides besteht· .mf dies© Weise gebildetes Tantalnitrid Wurde nachher chloriert werde» und dies würde eine schlechte Trennung sur folge haben«get. i) The temperature is then reduced to up to 5> oo ° g a & r i. "Substance is displaced by a ne & fcral Gan and the chlorination is carried out in honorable hours, && which !! © ^ Etioß Ka? e 1 is reversible, recommends it look dry hydrogen is i.uaserde® au use to Heoxydation Tetroxids formed au venaeiden the iaiwesea? "-. standardized äferend i-'tickstoff" the reduction za avoid ^ dg bejL the Beduktionatemperatureii Äfiguiig zar formation of nitride is ·. If the tantalum nitride formed in this way was subsequently chlorinated "and this would result in poor separation"
.vls T?edaktionsaiittel wird vorzugB^^iöe Wasserstoff verwendet; »an. kenn aber aaeh andere Keduktionegiittel, wie aeB, Kohlenwasserstoff ο, Schwefel kohlenstoff, Bchssief ©Iwasseratof f, elementaren ί-cfcwefel und sogar gewiss© Metalle verwenden. Allerdings können'bei 'Verwendung derartiger Reduktionsmittel In mn.noh.Gn Fällen Seteierigkeiifcer. entjstehen. So können 2eB„8purea von Kohleost off» welebe iß der^iscaung anriickbleibem Tantalverlust© infolge Reaktion von fao0c mit Chlor in Gegenwart von Kohl©astoff aur Folge haben,,Hydrogen is preferably used as an active ingredient; "on. but I also know how to use other reductive agents, such as a e B, hydrocarbons ο, carbon disulfide, Bchssief © Iwasseratof f, elementary ί-cfc-sulfur and even certain © metals. However, 'when' such reducing agents are used, in mn. arise. Sun, 2 e B "8purea can off of Kohleost" welebe eat the ^ iscaung anriickbleibem tantalum loss © due to reaction of fa o 0c with chlorine in the presence of carbon © astoff aur result have ,,
^iir Olilorierung '^ird vorteilhaft Chlor verwendet· & köanea Φθτ auch ander© Ohlorierunßamittel benutzt werden» 2.B.solche» W0lch©„ wi© s#Be FeCIx9 befähigt sind, freies Chlox bei aofa@ii Temperaturen abzuspalten· »nstelie von Chlor oder dissoailerb«iren Chlorverbindungen können auch andere Halogenes oder Broms oder solche enthaltende Verbindungen Verfiöd©a? die befähigt siads Halogen boi Jioiiea rfeape^aabsaspalteiie ^us aggastSÄ oekoaomiscnen Gründen ist aber die Verweadaag von ChlorFor oliloration, chlorine is advantageously used · & köanea Φθτ can also be used other © Ohlorierunßamittel »2. B. such» W0lch © "wi © s # B e FeCIx 9 are able to split off free chlox at aofa @ ii temperatures ·» nstelie of chlorine or dissoailerb "irish chlorine compounds, other halogens or bromine s s or those containing compounds Verfiöd © a? the capable siad s Halogen boi Jioiiea r feape ^ aabsaspalteii e ^ us aggastSÄ oekoaomiscnen reasons but is the Verweadaag of chlorine
Claims (1)
Family
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