CS266962B1 - Method of tungsten as ws3 separation from extracted low-grade scheelite or tungsten concentrate - Google Patents
Method of tungsten as ws3 separation from extracted low-grade scheelite or tungsten concentrate Download PDFInfo
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- CS266962B1 CS266962B1 CS865288A CS528886A CS266962B1 CS 266962 B1 CS266962 B1 CS 266962B1 CS 865288 A CS865288 A CS 865288A CS 528886 A CS528886 A CS 528886A CS 266962 B1 CS266962 B1 CS 266962B1
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- tungsten
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Abstract
Podstata riešenia spočívá v pósobení sírnika amonného na rmut, získaný po vylúhovaní koncentrátu, dalej pósobení kyseliny chlorovodíkovej a flotácie vyzrážaného WS3 z rmutu etylxantátom.The essence of the solution lies in action ammonium sulphide, obtained after leaching concentrate, further acid treatment hydrochloric acid and flotation of precipitated WS3 from mash with ethylxantate.
Description
Vynález sa týká spósobu oddelovania wolfrámu ako WS, z vylúhovaného chudobného scheelitového, alebo wolframitového koncentrátu s obsahem wolfrámu od 2 do 20 4.The invention relates to a process for separating tungsten as WS from a leached poor scheelite or tungsten concentrate having a tungsten content of from 2 to 20%.
Doteraz sa wolfrám ako WS^ z vylúhovaného chudobného scheelitového, alebo wolframitového koncentrátu odděluje filtrováním z výluhu, po pósobení sírnika amonného na výluh a okyselení výluhu.Until now, tungsten, as WS ^, from leached poor scheelite or tungsten concentrate is separated by filtration from the leach, after the ammonium sulphide has been exposed to the leach and acidified the leach.
Nevýhodou tohoto postupu je oddelenie výluhu od vylúhovaného koncentrátu filtrováním, ktorého dósledkom sú straty wolfrámu vo filtračnom koláči.The disadvantage of this process is the separation of the leachate from the leached concentrate by filtration, which results in the loss of tungsten in the filter cake.
Uvedené nedostatky sú podlá vynálezu odstránené spósobem oddelovania wolfrámu ako WS^ z vylúhovaného chudobného scheelitového, alebo wolframitového koncentrátu s obsahom wolfrámu od 2 do 20 4, ktorého podstata spočívá v pósobení sírnika amonného na rmut získaný po vylúhovaní koncentrátu, Sálej pósobení kyseliny chlorovodíkovéj a etylxantátu na tento rmut a flotácii WSj z rmutu.According to the invention, these disadvantages are remedied by the method of separating tungsten as WS from the leached poor scheelite or tungsten concentrate having a tungsten content of from 2 to 20, which is based on the action of ammonium sulphide on the mash obtained after leaching the concentrate, sodium sulphate and this mash and the flotation of WSj from the mash.
Oddelenie wolfrámu ako WS^ z vylúhovaného chudobného scheelitového, alebo wolframitového koncentrátu s obsahom wolfrámu od 2 do 20 4 sa dosiahne pósobením sírnika amonného na rmut, získaný po ukončení lúhovania koncentrátu v množstve, pri ktorom dójde po okyselení rmutu kyselinou chlorovodíkovou na pH 1 až 2 k vyzráženiu WS, v rmute, pósobením 10 %-néhoSeparation of tungsten as WS WS from leached poor scheelite or tungsten concentrate with a tungsten content of from 2 to 20 4 is achieved by the reaction of ammonium sulphide to the mash obtained after the concentrate has been leached in an amount which reaches pH 1 to 2 with hydrochloric acid. to precipitate WS, in the mash, by multiplying by 10%
-3 J „ -1 vodného roztoku etylxantátu v množstve 0,5 až 1,0 l.m rmutu o zahuštění 200 az 300 g.l tuhých častíc a flotáciou WS^ z rmutu v základnej a prečisťovacích flotáciach.-3 J "-1 aqueous solution of ethyl xanthate in an amount of 0.5 to 1.0 lm pulp concentration of 200 to 300 gl of particles and the WS ^ flotation of pulp in the flotation and purge.
Výhody vynálezu spočívajú v zjednodušení procesu, znížení strát wolfrámu a možnosti použitia flotačnej batérie, v ktorej sa móže rmut po vylúhovaní koncentrátu premiešavať so sírnikom amonným, kyselinou chlorovodíkovou a etylxanátom a následné flotovať WS^.The advantages of the invention reside in the simplification of the process, the reduction of tungsten losses and the possibility of using a flotation battery in which the mash can be mixed with ammonium sulphide, hydrochloric acid and ethylxanoate and subsequently flotate WS4 after leaching the concentrate.
PříkladExample
Spósob oddelovania wolfrámu ako WSj z vylúhovaného chudobného scheelitového, alebo wolframitového koncentrátu s obsahom wolfrámu od 2 do 20 % podlá vynálezu, je preveditelný vo flotačnej batérií a spočívá v premiešavaní rmutu získaného po ukončení lúhovania koncentrátu sírnikom amonnýty. >v množstve, pri ktorom po okyseleni rmutu kyselinou chlorovodíkovou na i* pH 1 až. 2, dójde k vyzrážajiiu WS, v rmute, v-premiešavaní rmutu 10 %-ným vodným roztokom ’ 1 J -3 -1 etylxantátu v .-mnpžstve 0,5 až 1,0 l.m rmutu o zahuštění 200 až 300 g.l tuhých častíc a vo flotácii WSj ž rmutu v základnej a prečisťovacích flotáciach.The method of separating tungsten as WSj from a leached poor scheelite or tungsten concentrate having a tungsten content of from 2 to 20% according to the invention is carried out in a flotation battery and consists in mixing the mash obtained after the leaching of the concentrate with ammonium sulphate. in an amount in which, after acidification of the mash with hydrochloric acid to a pH of 1 to 1. 2, WS precipitates in the mash by mixing the mash with a 10% aqueous solution of 1 J -3 -1 ethylxanthate in an amount of 0.5 to 1.0 lm of mash, with a concentration of 200-300 g of solid particles, and in the WS flotation mash in the base and purification flotations.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS865288A CS266962B1 (en) | 1986-07-11 | 1986-07-11 | Method of tungsten as ws3 separation from extracted low-grade scheelite or tungsten concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS865288A CS266962B1 (en) | 1986-07-11 | 1986-07-11 | Method of tungsten as ws3 separation from extracted low-grade scheelite or tungsten concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS528886A1 CS528886A1 (en) | 1989-06-13 |
| CS266962B1 true CS266962B1 (en) | 1990-01-12 |
Family
ID=5397495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS865288A CS266962B1 (en) | 1986-07-11 | 1986-07-11 | Method of tungsten as ws3 separation from extracted low-grade scheelite or tungsten concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS266962B1 (en) |
-
1986
- 1986-07-11 CS CS865288A patent/CS266962B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS528886A1 (en) | 1989-06-13 |
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