FI59538C - SAETT ATT ANRIKA SULFIDISK NICKELMALM - Google Patents
SAETT ATT ANRIKA SULFIDISK NICKELMALM Download PDFInfo
- Publication number
- FI59538C FI59538C FI771409A FI771409A FI59538C FI 59538 C FI59538 C FI 59538C FI 771409 A FI771409 A FI 771409A FI 771409 A FI771409 A FI 771409A FI 59538 C FI59538 C FI 59538C
- Authority
- FI
- Finland
- Prior art keywords
- dithiophosphate
- flotation
- ore
- addition
- added
- Prior art date
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 29
- 238000005188 flotation Methods 0.000 claims description 23
- 239000003153 chemical reaction reagent Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 15
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 2
- 239000007900 aqueous suspension Substances 0.000 claims 1
- 230000001143 conditioned effect Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 9
- 238000005187 foaming Methods 0.000 description 4
- CRCCWKNJNKPDAE-UHFFFAOYSA-N hydroxy-(2-methylpropoxy)-(2-methylpropylsulfanyl)-sulfanylidene-$l^{5}-phosphane Chemical compound CC(C)COP(O)(=S)SCC(C)C CRCCWKNJNKPDAE-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- QCAHUFWKIQLBNB-UHFFFAOYSA-N 3-(3-methoxypropoxy)propan-1-ol Chemical compound COCCCOCCCO QCAHUFWKIQLBNB-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- -1 allyl ester Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000012991 xanthate Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910001779 copper mineral Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229940075933 dithionate Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 235000012243 magnesium silicates Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- ZBJVLWIYKOAYQH-UHFFFAOYSA-N naphthalen-2-yl 2-hydroxybenzoate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=C(C=CC=C2)C2=C1 ZBJVLWIYKOAYQH-UHFFFAOYSA-N 0.000 description 1
- YGHCWPXPAHSSNA-UHFFFAOYSA-N nickel subsulfide Chemical compound [Ni].[Ni]=S.[Ni]=S YGHCWPXPAHSSNA-UHFFFAOYSA-N 0.000 description 1
- FOKWMWSOTUZOPN-UHFFFAOYSA-N octamagnesium;iron(2+);pentasilicate Chemical compound [Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Fe+2].[Fe+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] FOKWMWSOTUZOPN-UHFFFAOYSA-N 0.000 description 1
- 229910052954 pentlandite Inorganic materials 0.000 description 1
- 239000011025 peridot Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- YIBBMDDEXKBIAM-UHFFFAOYSA-M potassium;pentoxymethanedithioate Chemical compound [K+].CCCCCOC([S-])=S YIBBMDDEXKBIAM-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/014—Organic compounds containing phosphorus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
|V£r»i [B] {11)KUULUTUSjULKAISU f O C 7 Q| V £ r »i [B] {11) ANNOUNCEMENT f O C 7 Q
Ma lJ ' ' UTLÄGGNINGSSKRIFT 0 ~ 0 «> ö C (45) Patentti aydnru-Ity K) J9 11ΰ1 Patent meddelat V ' ^ (51) Kv.lk.Wci.3 B 03 D 1/02 SUOMI —FIN LAND (21) FWttlhtk.mu.-IWtinrfknlni 771^09 (22) Hakamltpllvl —AMttknlnpdtg 0^.05· 77 (23) Alkupilvi—GlMghatadts 0^.05.77 (41) Tullut Julkl««k*l — Riivit offumllg 05 · 11 · 78Ma lJ '' UTLÄGGNINGSSKRIFT 0 ~ 0 «> ö C (45) Patent aydnru-Ity K) J9 11ΰ1 Patent meddelat V '^ (51) Kv.lk.Wci.3 B 03 D 1/02 FINLAND —FIN LAND (21 ) FWttlhtk.mu.-IWtinrfknlni 771 ^ 09 (22) Hakamltpllvl —AMttknlnpdtg 0 ^ .05 · 77 (23) Primary Cloud — GlMghatadts 0 ^ .05.77 (41) Tullut Julkl «« k * l - Gratings offumllg 05 · 11 · 78
Patentti· ia rekiiterihallltua .... __. . , _ , . . (44) Nlhttvtkilptnon Ja kuuLjulkilsun pvm.— „ nr. Q,Patent · and registrar administration .... __. . , _,. . (44) Date of issue of the letter of formal notice. Q,
Patant- och regictaratyralaan ' Anaekan uttagd och uti.ikrift«n publkarad 29.05. öl (32)(33)(31) Pyydetty atuolkaua —Baglrd priorltat (71) Berol Kemi AB, 01 Stenungsund, Ruotsi-Sverige(SE) (72) Ingrid Annelie Askenbom, Stenungsund, Karl Martin Edvin Hellsten, Ödsm&l, Anders William Klingberg, Henän, Ruotsi-Sverige(SE) (7M Berggren Oy Ab (5^) Menetelmä sulfidinikkelimalmin rikastamiseksi - Sätt att anrika sulfidisk nickelmalmPatant- och regictaratyralaan 'Anaekan uttagd och uti.ikrift «n publkarad 29.05. öl (32) (33) (31) Requested atuolkaua —Baglrd priorltat (71) Berol Kemi AB, 01 Stenungsund, Sweden-Sweden (SE) (72) Ingrid Annelie Askenbom, Stenungsund, Karl Martin Edvin Hellsten, Ödsm & l, Anders William Klingberg , Henän, Sweden-Sverige (SE) (7M Berggren Oy Ab (5 ^) Method for concentrating sulphidinickel ore - Sätt att anrika sulfidisk nickelmalm
Esillä olevan keksinnön kohteena on menetelmä sulfidinikkelimalmin rikastamiseksi emäksisistä kalliolajeista vaahdotuksen avulla. Vaah-dotusreagenssina käytetään ditiofosfaattia, jonka pH on 3,5-6,0.The present invention relates to a process for the enrichment of sulphidinickel ore from alkaline rock types by flotation. Dithiophosphate having a pH of 3.5 to 6.0 is used as the foaming reagent.
US-patenttijulkaisusta 2 808 931 tunnetaan menetelmä kuparipitoisten mineraalien rikastamiseksi. Menetelmässä kuparimineraali jauhetaan dialkyyliditiofosfaatin allyyliesterin läsnäollessa, jonka jälkeen mineraalijauhe laimennetaan vedellä ja lisätään rikkihappoa ja vaah-dotusainetta, joka koostuu fenoliyhdisteen seoksesta. Tämän jälkeen suoritetaan vaahdotus.U.S. Pat. No. 2,808,931 discloses a process for enriching copper-containing minerals. In the process, a copper mineral is ground in the presence of an allyl ester of a dialkyl dithiophosphate, after which the mineral powder is diluted with water and sulfuric acid and a blowing agent consisting of a mixture of a phenolic compound are added. The flotation is then performed.
Sulfidinikkelimalmeja, joissa arvometallit esiintyvät erilaisina sul-fideina, esim. pentlandiittina (NiFeS2) ja heazlewoodiittina (Ni.jS2) , on jo kauan rikastettu vaahdotuksella, jolloin pääasiassa rikkipitoisten kokoojareagenssien kuten alkyyliksantaattien ja dialkyyliditio-fosfaattien on todettu olevan sopivia. Näiden kokoojareagenssien käyttöä on selitetty tarkemmin mm. US-patenttijulkaisuissa 2693278 ja 3570772. Vaahdotusprosessi suoritetaan tavallisesti pH-alueella 6-8.Sulfide-nickel ores in which precious metals are present as various sulfides, e.g. pentlandite (NiFeS2) and heazlewoodite (Ni.jS2), have long been enriched by flotation, with mainly sulfur-containing collecting reagents such as alkyl xanthates and dialkyl dithionate phosphates. The use of these collection reagents is explained in more detail, e.g. U.S. Patent Nos. 2,693,278 and 3,570,772. The flotation process is usually performed in the pH range of 6-8.
Kuitenkin on olemassa tiettyjä ultraemäksisiä malmityyppejä, ns. peri-dotiittejä, jotka sisältävät nikkelimineraaleja, joiden kohdalla on todettu saatavan parempi nikkelin saanto vaahdotuksessa, jos hienoksi jauhettua malmia ensin käsitellään suhteellisen suurella rikkihappo-määrällä ja sen jälkeen suoritetaan vaahdotus pH-alueella 3,5-6 käyttämällä alkyyliksantaattia kokoojareagenssina. Parempi 2 59538 saanto selittyy todennäköisesti siitä, että nämä malmit ovat osaksi hapettuneita ja että happokäsittelyn avulla vapautetaan nikkelisul-fidipintoja, niin että kokoojareagenssi pääsee niihin käsiksi. Tästä parannetusta teknologiasta huolimatta on osoittautunut vaikeaksi osaksi saada rikasteeseen haluttu nikkelipitoisuus, ts. yli 6 % nikkeliä, osaksi korkea nikkelin kokonaissaanto, ts. yli 70 %:n saanto.However, there are certain types of ultra-alkaline ores, the so-called peridotites containing nickel minerals which have been found to give a better yield of nickel in flotation if the finely ground ore is first treated with a relatively large amount of sulfuric acid and then flotation at pH 3.5-6 using alkyl xanthate as a collecting reagent. The improved yield of 2,59538 is probably explained by the fact that these ores are partially oxidized and that the acid treatment releases the nickel sulfide surfaces so that the collecting reagent can access them. Despite this improved technology, it has proved difficult partly to obtain the desired nickel content in the concentrate, i.e. more than 6% nickel, partly high overall nickel yield, i.e. more than 70% yield.
Nyt on havaittu olevan mahdollista, että yllä selitetynlaisessa nik-kelimalmien vaahdotuksessa voidaan huomattavasti parantaa sekä puhtautta että kokonaissaantoa valitsemalla kokoojareagenssiksi ditio-fosfaatti ja lisäämällä tätä kyseiseen lietteeseen viimeistään välittömästi rikkihapon lisäyksen jälkeen. Lietteen konditiointi tapahtuu tavallisesti vähintään 15, edullisesti 20-60 minuutin aikana, minkä jälkeen sulfidinikkelimineraalia vaahdotetaan pH-arvossa 3,5- 6,0 sinänsä tunnetulla tavalla.It has now been found possible that in the flotation of nickel ores as described above, both purity and overall yield can be significantly improved by selecting dithiophosphate as the collecting reagent and adding it to the slurry at the latest immediately after the addition of sulfuric acid. The conditioning of the slurry usually takes place for at least 15, preferably 20 to 60 minutes, after which the sulfidine-nickel mineral is foamed at a pH of 3.5 to 6.0 in a manner known per se.
Keksinnön mukaista menetelmää käytettäessä on ratkaisevan tärkeää, ettei ditiofosfaattia lisätä oleellisesti myöhemmin kuin rikkihappoa. Kun rikkihappoa lisätään, alenee pH-arvo hetkellisesti n. 1-2reen, minkä jälkeen se n. 3-10 minuutin jälkeen nousee n. 3,5-6reen sen emäksisen mineraalin vaikutuksesta, jonka pHrssa vaahdotus suoritetaan. Oleellisella tarkoitetaan tässä sitä, ettei ajanjakso saa ylittää 3 minuuttia, sopivasti 2 minuuttia, edullisesti ei 1 minuuttia. Keksintöä käytettäessä reaktioreagenssi on siis läsnä sen ajan verran kuin lietteen pH-arvo alittaa itse vaahdotuksen aikana vallitsevan pH-arvon. Erään edullinen suoritusmuodon mukaan kokoojarea-genssin ja rikkihapon lisäys tapahtuu samanaikaisesti. Haluttaessa voidaan ditiofosfaatti myös lisätä ennen rikkihappoa. Syytä, miksi ditiofosfaatin lisäyksen ajankohta on niin tärkeä, ei ole selvitetty, mutta eräänä teoriana on se, että tietyt nikkelipinnat vapautuvat hetkellisesti siinä alhaisessa pHrssa, joka vallitsee rikkihapon lisäyksen ajankohtana ja välittömästi sen jälkeen.When using the process according to the invention, it is crucial that the dithiophosphate is not added substantially later than the sulfuric acid. When sulfuric acid is added, the pH decreases momentarily by about 1-2 to 30, after which it rises after about 3-10 minutes by about 3.5-6 to the effect of the basic mineral at which the flotation is carried out. By essential is meant herein that the period should not exceed 3 minutes, suitably 2 minutes, preferably not 1 minute. Thus, in the practice of the invention, the reaction reagent is present for as long as the pH of the slurry falls below the pH prevailing during flotation itself. According to a preferred embodiment, the addition of the collecting reagent and the sulfuric acid takes place simultaneously. If desired, dithiophosphate can also be added before sulfuric acid. The reason why the time of dithiophosphate addition is so important has not been elucidated, but one theory is that certain nickel surfaces are momentarily released at the low pH that prevails at the time of sulfuric acid addition and immediately thereafter.
Keksinnön mukaisena ditiofosfaattiyhdisteenä ovat yhdisteet, joilla on yleinen kaava RT0 ^sThe dithiophosphate compound of the invention is a compound of the general formula RT0 ^ s
RrI0^ SHRrI0 ^ SH
59538 jossa R1 ja R11 toisistaan riippumatta merkitsevät hiilivetyryh-mää, jossa on 2-12 hiiliatomia, tai sen suolaa. Erityisen sopivia ryhmiä ovat isobutyyliryhmät. Ditiofosfaatin lisäys on 25-750, edullisesti 50-400 grammaa per tonni malmia, jolle vaahdo-tus suoritetaan.59538 wherein R1 and R11 independently represent a hydrocarbon group having 2 to 12 carbon atoms, or a salt thereof. Particularly suitable groups are isobutyl groups. The addition of dithiophosphate is 25-750, preferably 50-400 grams per ton of ore to which the flotation is carried out.
Keksinnön mukaista menetelmää käytettäessä voidaan haluttaessa myös lisätä vaahdotuksessa tavanomaisia lisäaineita, kuten se-kundäärikokoojareagensseja. Esimerkkeinä sopivista sekundääri-kokoojista ovat veteen liukenemattomat, hydrofobit aineet, jotka emulgoidaan veteen sopivalla emulgaattorilla. Muita lisäaineita ovat puristavat ja aktivoivat aineet, vaahdottimet jne.When using the process according to the invention, it is also possible, if desired, to add additives which are customary in flotation, such as secondary collecting reagents. Examples of suitable secondary builders are water-insoluble, hydrophobic substances which are emulsified with a suitable emulsifier in water. Other additives include compressing and activating agents, Foams, etc.
Keksinnön mukaista menetelmää havainnollistavat lisäksi seuraavat esimerkit.The method according to the invention is further illustrated by the following examples.
EsimerkkiExample
Peridoottimalmia, joka sisälsi 0,50 % nikkelisulfidimineraalin muodossa olevaa nikkeliä ja lisäksi kuparikiisun, CuFeS2, muodossa olevaa kuparia, magnesiumsilikaatteja, jotka vastasivat 35 % MgO:a, ja 2 % S:ä vastaavan kokonaismäärän sulfidia, murskattiin 2-4 cm:n kokoisiksi paloiksi, joita sen jälkeen jauhettiin jau-himessa 10 minuutin ajan, jolloin oli läsnä 0,8 1 vettä/kg malmia. Jauhatuksen jälkeen saattoi 80 paino-% läpäistä seulan, jonka silmän koko oli 65^,um. Näin jauhetusta malmista (1 kg malmia ja 1,0 1 vettä) valmistettiin mineraaliliete, joka siirrettiin vaahdotuskennoon. Rikkihappoa, vaahdotusreagenssia ja vaahdotus-muodostinta lisättiin alla olevien taulukkojen mukaisesti. Raaka-vaahdotuksen jälkeen suoritettiin 3 toistoa.Peridot ore containing 0.50% nickel in the form of a nickel sulfide mineral and in addition copper in the form of copper ore, CuFeS2, magnesium silicates corresponding to 35% MgO and a total amount of sulphide corresponding to 2% S was crushed to a size of 2-4 cm into pieces which were then ground in a grinder for 10 minutes in the presence of 0.8 l of water / kg of ore. After grinding, 80% by weight could pass through a sieve with a mesh size of 65. A mineral slurry was prepared from the ore thus ground (1 kg of ore and 1.0 L of water) and transferred to a flotation cell. Sulfuric acid, flotation reagent, and flotation former were added according to the tables below. After crude flotation, 3 replicates were performed.
4 595384,59538
Koe 1Test 1
Aika - min.Time - min.
0 Rikkihappoa 20 kg/tonni 15 Kaliumamyyliksantogenaatti 500 g/tonni pH 4,0 20 Raakavaahdotus alkaa pH 4,5 37 Kaliumamyyliksantogenaatti 250 g/tonni pH 4,4 41 " 250 g/tonni pH 4,5 46 " 250 g/tonni pH 4,6 52 " 250 g/tonni pH 4,6 59 " 250 g/tonni pH 4,6 66 " 500 g/tonni pH 4,6 73 1. toisto alkaa pH 4,7 90 2. toisto alkaa pH 4,9 105 3. toisto alkaa pH 5,10 Sulfuric acid 20 kg / tonne 15 Potassium amylanthogenate 500 g / tonne pH 4.0 20 Crude foaming begins at pH 4.5 37 Potassium amylanthanthogenate 250 g / tonne pH 4.4 41 "250 g / tonne pH 4.5 46" 250 g / tonne pH 4.6 52 "250 g / tonne pH 4.6 59" 250 g / tonne pH 4.6 66 "500 g / tonne pH 4.6 73 1. playback starts at pH 4.7 90 2. playback starts at pH 4, 9 105 3. playback starts at pH 5.1
Dipropyleeniglykolimonometyylieetteriä vaahdottimena lisättiin kokonaisuudessaan 375 g/tonni 37. ja 66. minuutin välillä.A total of 375 g / ton of dipropylene glycol monomethyl ether as a blowing agent was added between 37 and 66 minutes.
Koe 2Test 2
Aika - min.Time - min.
0 Rikkihappo 30 kg/tonni 20 Di-isobutyyliditiofosfaatti 150 g/tonni pH 4,0 25 Raakavaahdotus alkaa pH 4,2 62 Di-isobutyyliditiofosfaatti 100 g/tonni pH 4,6 65-80 1. toisto pH 5,1 - 4,7 80-93 2. toisto pH 4,9 93-104 3. toisto pH 5,10 Sulfuric acid 30 kg / ton 20 Diisobutyldithiophosphate 150 g / tonne pH 4.0 25 Crude foaming begins at pH 4.2 62 Diisobutyldithiophosphate 100 g / tonne pH 4.6 65-80 1st repeat pH 5.1 - 4, 7 80-93 2nd repeat pH 4.9 93-104 3rd repeat pH 5.1
Koe 3Test 3
Aika - min.Time - min.
0 Rikkihappo 33 kg/tonni Di-isobutyyliditiofosfaatti 150 g/tonni 1 pH 1,7 2 pH 2,1 3 pH 3,6 30 Raakavaahdotus alkaa pH 4,2 39-79 Dipropyleeniglykolimonometyylieetteri0 Sulfuric acid 33 kg / ton Diisobutyl dithiophosphate 150 g / ton 1 pH 1.7 2 pH 2.1 3 pH 3.6 30 Crude foaming begins pH 4.2 39-79 Dipropylene glycol monomethyl ether
Vaahdotin 120 g/tonni. Jatkuva raakavaahdotus 79-96 1. toisto pH 4,8 96-103 2. toisto pH 5,0 103-111 3. toisto pH 5,1 s 59538Foamer 120 g / ton. Continuous raw flotation 79-96 1st repeat pH 4.8 96-103 2nd repeat pH 5.0 103-111 3rd repeat pH 5.1 s 59538
Eri vaahdotusvaiheiden laskeutumistuotteet sekä viimeisen vaiheen vaahdote kuivattiin, punnittiin ja analysoitiin nikkelin suhteen.The precipitation products of the different flotation stages as well as the foam of the last stage were dried, weighed and analyzed for nickel.
Tällöin saatiin seuraavat tulokset.The following results were obtained.
Raakavaahdotus 1. toisto 2. toisto 3. toistoRaw flotation 1st repeat 2nd repeat 3rd repeat
Pitoisuus Saanto Pitoisuus Saanto Pitoisuus Saanto Pitoisuus Saanto % % % % % %% %Concentration Yield Concentration Yield Concentration Yield Concentration Yield%%%%% %%%
Koe 1 1,54 76,2 3,83 50,1 5,43 45,8 6,67 43,2Experiment 1 1.54 76.2 3.83 50.1 5.43 45.8 6.67 43.2
Koe 2 0,87 73,2 1,90 36,9 4,1 32,9 7,1 30,0Experiment 2 0.87 73.2 1.90 36.9 4.1 32.9 7.1 30.0
Koe 3 2,1 76,8 5,1 71,6 6,48 69,7 7,2 68,5Experiment 3 2.1 76.8 5.1 71.6 6.48 69.7 7.2 68.5
Koe n:o 1 edustaa tämänhetkisen kaupallisesti käytetyn vaahdotustek-niikan mallia siten, että kokoojareagenssin lisäys tapahtuu yhtämittaisesti ja konditiointiaika ensimmäisen kokoojareagenssin lisäyksen jälkeen on ainoastaan 5 minuuttia. Vaikka kaliumamyyliksantoge-naatin kokonaislisäys on 2 250 g/tonni, on nikkelin saanto huono, ainoastaan 43 % 3. toiston jälkeen.Experiment No. 1 represents a model of the current commercially used flotation technique such that the addition of the collecting reagent takes place continuously and the conditioning time after the first addition of the collecting reagent is only 5 minutes. Although the total addition of potassium amyl xanthate is 2,250 g / ton, the nickel yield is poor, only 43% after the 3rd repeat.
Kokeessa 2 on kokoojareagenssina ollut di-isobutyyliditiofosfaatti ja sen lisäys on tapahtunut kahdessa vaiheessa. Ensimmäinen lisäys tehtiin 20 minuuttia rikkihapon lisäyksen jälkeen ja toinen 5 minuuttia sen jälkeen. Vaahdotustulos muodostui hyväksi nikkelipitoisuu-den suhteen, mutta huonoksi saannon suhteen.In Experiment 2, diisobutyl dithiophosphate has been the collecting reagent and its addition has taken place in two steps. The first addition was made 20 minutes after the addition of sulfuric acid and the second 5 minutes thereafter. The flotation result was good in terms of nickel content but poor in terms of yield.
Kokeessa 3, joka suoritettiin keksinnön mukaisesti, on kokoojarea-genssi ja rikkihappo lisätty samanaikaisesti. Konditiointiaika oli 30 minuuttia. Nikkelipitoisuuden ja saannon saadut arvot, 7,2 ja vastaavasti 68,5 %, ovat molemmat hyvin tyydyttäviä. Vertailtaessa tätä kokeisiin 1 ja 2 on otettava huomioon, että reagenssin määrä kokeessa 3 on ainoastaan vajaat 7 % ja vastaavasti 60 % vertailukokeissa käytetystä määrästä. Keksinnön mukainen menetelmä edustaa niin ollen huomattavasti parempaa tekniikkaa tällä alueella.In Experiment 3, which was performed according to the invention, the collecting reagent and sulfuric acid were added simultaneously. The conditioning time was 30 minutes. The values obtained for nickel content and yield, 7.2 and 68.5%, respectively, are both very satisfactory. When comparing this with Experiments 1 and 2, it should be noted that the amount of reagent in Experiment 3 is only less than 7% and 60%, respectively, of the amount used in the comparative experiments. The method according to the invention thus represents a much better technique in this field.
Claims (6)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI771409A FI59538C (en) | 1977-05-04 | 1977-05-04 | SAETT ATT ANRIKA SULFIDISK NICKELMALM |
| CA302,536A CA1095640A (en) | 1977-05-04 | 1978-05-03 | Process for the concentration of sulfidic nickel ores |
| FR7813238A FR2389414A1 (en) | 1977-05-04 | 1978-05-03 | Concentrating nickel sulphide ores esp. peridotite by flotation - by adding di:thiophosphate immediately after strong acid (SF 29.12.78) |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI771409 | 1977-05-04 | ||
| FI771409A FI59538C (en) | 1977-05-04 | 1977-05-04 | SAETT ATT ANRIKA SULFIDISK NICKELMALM |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI771409A FI771409A (en) | 1978-11-05 |
| FI59538B FI59538B (en) | 1981-05-29 |
| FI59538C true FI59538C (en) | 1981-09-10 |
Family
ID=8510815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI771409A FI59538C (en) | 1977-05-04 | 1977-05-04 | SAETT ATT ANRIKA SULFIDISK NICKELMALM |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA1095640A (en) |
| FI (1) | FI59538C (en) |
| FR (1) | FR2389414A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530758A (en) * | 1982-05-17 | 1985-07-23 | Thiotech, Inc. | Ore flotation method |
| FR2530161A1 (en) * | 1982-07-16 | 1984-01-20 | Inst Mondial Phosphate | IMPROVEMENTS IN PROCESSES FOR SEPARATING METALS FROM HYPERACID MEDIA BY ION FLOATING |
| US4699712A (en) * | 1984-06-20 | 1987-10-13 | Thiotech, Inc. | Ore dressing method |
| US4584095A (en) * | 1984-06-20 | 1986-04-22 | Thiotech, Inc. | Ore flotation method employing phosphorodithio compounds as frother adjuvants |
| AUPR410801A0 (en) * | 2001-03-30 | 2001-05-03 | Bhp Innovation Pty Ltd | Improved flotation |
| AU2002244517B2 (en) * | 2001-03-30 | 2007-11-29 | Bhp Billiton Innovation Pty Ltd | Improved flotation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB310186A (en) * | 1928-04-26 | 1929-04-25 | American Cyanamid Co | Improvements in flotation agents |
-
1977
- 1977-05-04 FI FI771409A patent/FI59538C/en not_active IP Right Cessation
-
1978
- 1978-05-03 FR FR7813238A patent/FR2389414A1/en active Granted
- 1978-05-03 CA CA302,536A patent/CA1095640A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2389414B1 (en) | 1980-04-04 |
| FI771409A (en) | 1978-11-05 |
| FI59538B (en) | 1981-05-29 |
| FR2389414A1 (en) | 1978-12-01 |
| CA1095640A (en) | 1981-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: BEROL KEMI AB |