Basa reSodium sulfide muMineral Processing

ziviso

Munzvimbo yakaoma uye inokosha yekugadzirisa zvicherwa , ma reagents akasiyana-siyana emakemikari anoita basa guru mukuvandudza kupatsanurwa nekuburitswa kwezvicherwa zvinokosha. Pakati peizvi, sodium sulfide (Na₂S) inoonekwa sekemikari inoshandiswa zvakasiyana-siyana uye inoshandiswa zvakanyanya. Ine mabasa akawanda mumhando dzakasiyana dzemabasa ekugadzirisa zvicherwa, kunyanya mukuita kweflotation , izvo zvakakosha pakudzoreredzwa kwezvicherwa kubva mumatombo zvinobudirira.

Chemical Properties yeSodium Sulfidi

Sodium sulfide munyu unobva kuhydrogen sulfide, isina simba dibasic acid. Mumadziva emvura patembiricha yekamuri uye imwe yemhepo, pakati peanopfuura makumi matatu mamorekuru uye ionic sulfur marudzi, matanhatu chete ndiwo akadzikama thermodynamically: HSO₄⁻, SO₄²⁻, H₂S, HS⁻, uye S²⁻. Iyo pH yeaqueous system ndiyo yakakosha kudzora shanduko muoxidation yehydrogen sulfide. Below pH 30. "molecular hydrogen sulfide" ndiyo inotonga yakaderedzwa sarufa marudzi. Pa pH 6. mhando dzesarufa dzakaderedzwa mumushonga dzakapatsanurwa zvakaenzana pakati pe "dissolved hydrogen sulfide" nemhando yebisulfide (HS⁻), HS⁻ iri iyo mhando huru mupH ye7 - 8.

Mabasa eSodium sulfide muMineral Processing

Inhibitor yeSulfide Minerals

Sodium sulfide inodzivirira inoshanda kune akawanda mamineral esulfide kana ikashandiswa yakawanda. Kurongeka kwemhedzisiro yayo pa sulfide minerals kunowanzo kudzikira seizvi: galena, sphalerite, chalcopyrite, bornite, covellite, pyrite, uye chalcocite. Zvinonyanya kukosha, nekuda kwekugona kwayo kuyerera zvakanaka kwemolybdenite, sodium sulfide haigone kuidzivisa. Hunhu uhwu hunoshandiswa mukuyerera kwemolybdenite, uko Na₂S inogona kushandiswa kudzvinyirira kuyerera kwemamwe mamineral esulfide, zvichibvumira kuparadzaniswa kwemolybdenite.

Sulfidizing Agent yeasiri - Ferrous Metal Oxide Ores

Non-ferrous metal oxide ores haigone kubatwa zvakananga ne xanthate vateresi. Nekudaro, kana sodium sulfide yawedzerwa kune ore pulp pamberi pe xanthate flotation, inopindirana nepamusoro peiyo isiri-ferrous metal oxide minerals. Kuita uku kunoguma nekuumbwa kwefirimu rakatetepa remaminerari e sulfide pamusoro peiyo oxide minerals. Somuenzaniso, kana chicherwa chemutobvu chichena chikasangana nesodium sulfide, ruvara rwayo rwepamusoro runochinja kubva kuchena kuenda kurima; uye kana malachite ikaita sodium sulfide, ruvara rwayo rwepamusoro rwunoshanduka kubva pagirinhi kuenda parima rakasviba. Idzi shanduko dzemavara dzinoratidza kubudirira kuumbwa kwefirimu re sulfide rakasiyana kubva kune yekutanga mineral. Mushure mekuita sulfidization, xanthate inogona kunyatsotora zvicherwa izvi, nekudaro ichivandudza kudzoreredza kudzoreredza kweasina ferrous simbi oxide ores.

Desorbing Agent yeSulfide Mineral Mixed Concentrates

Kana yakawanda sodium sulfide ikashandiswa, inogona kudhiza iyo xanthate - mhando yevateresi yakashongedzwa pamusoro pezvicherwa. Mukuparadzaniswa kwemutobvu - zinc yakasanganiswa concentrates kana mhangura - lead yakasanganiswa concentrates, ore pulp inogona kutanga yaiswa. Zvadaro, yakawanda ye sodium sulfide inowedzerwa kuti iparadze vaunganidzi pane mineral surface. Mushure meizvozvo, iyo pulp inoshambidzwa, uye mvura nyowani inowedzerwa kuti idzore - gadzirisa iyo pulp kune inotevera kuparadzanisa kuyerera. Iyi nzira inobatsira kubvisa kupindira kwevatori vepakutanga uye inogonesa kuparadzaniswa kwakanyatsonaka kwemaminerari akasiyana mune yakasanganiswa concentrate.

Kubvisa Ioni Inokuvadza muOre Pulp

Sodium sulfide inogona kuita neayoni akawanda esimbi kuita insoluble sulfide precipitates. Mumaore esimbi, pane kazhinji kacho mamwe maion esimbi anogona kukanganisa kutenderera, semamwe maion anorema esimbi. Nekuwedzera sodium sulfide, aya anokuvadza esimbi ayoni anogona kubviswa kubva mu ore pulp nenzira ye sulfide precipitates, nekudaro achigadzira inoyevedza makemikari nharaunda yekuyangarara uye nekuvandudza iyo yakazara flotation kunyatsoita.

Zvinhu Zvinokanganisa Kushandiswa kweSodium sulfide muMineral Processing

1. Mineralogy yeMatombo : Kusiyana kwemineralology yeMatombo kunogona kuva nemhedzisiro yakakura. Semuenzaniso, mu oxide ore sulfidization, kuvapo kwemaminera akasiyana akadai segalena, sphalerite, uye cerussite mumatombo kunogona kuomesa maitiro ekuita. Saizvozvowo, kuvapo kwemaminera akasiyana-siyana eoxide akadai semalachite, azurite, atacamite, uye chrysocolla pamwe chete kunokanganisawo sulfidization effect.

2. Sodium Sulfide - Mineral Inoshandiswa : Mineral yakaita sepyrite, marcasite, talc, cerussite, clays, slimes, alkaline earth salts, gypsum, uye chlorides inogona kushandisa sodium sulfide. Kushandiswa uku kunogona kukonzera kusakwana kwe sodium sulfide inowanikwa kune zvinodiwa mu flotation process, nokudaro zvichideredza kushanda kwayo.

3. Kukosha kwepH : Kana sodium sulfide yakawanda, pH yemudonzvo wesimbi inogona kuwanda. Iyi pH yakanyanya inogona kwete kungokanganisa maitiro emakemikari e sodium sulfide nemaminerari chete asiwo kukanganisa mashandiro emamwe ma reagents mu flotation system, zvichizopedzisira zvakanganisa kupatsanurwa nekudzoserwa kwemaminerari.

4. Nzvimbo uye Nhamba yeMatanho ekuwedzera Sodium Sulfide : Kuwanda kwenzvimbo uye huwandu hwenguva iyo sodium sulfide inowedzerwa panguva yekudonha kwemvura zvakakoshawo. Nzvimbo dzisina kunaka dzekuwedzera kana huwandu husina kunaka hwematanho ekuwedzera zvinogona kukonzera kupararira kusina kuenzana kwesodium sulfide mu pulp yesimbi kana kuti kuita zvinhu zvisina kurongeka, zvese izvi zvinogona kuderedza kushanda kwayo.

5. Kuumbwa Kwemvura : Kuumbwa kwemvura inoshandiswa mukuyerera, kunyanya huwandu hwecalcium, magnesium ions, uye kuomarara kwemvura, kunogona kusangana nesodium sulfide nemaminerari. Kubatana uku kunogona kukurudzira kana kudzikamisa mashandiro esodium sulfide, nokudaro kuchikanganisa basa rayo mukugadzirisa zvicherwa.

mhedziso

Sodium sulfide ine mabasa akawanda uye akakosha mukugadzirisa zvicherwa, kunyanya mukudonha kwemvura. Basa rayo semudziviriri, mumiririri wesulfidizing , mumiririri wekubvisa sorbing, uye kugona kwayo kubvisa maion anokuvadza kunobatsira zvikuru mukupatsanurwa nekudzoserwa kwezvicherwa zvinokosha kubva mumarudzi akasiyana-siyana ematombo. Zvisinei, kuti ushandise zvizere mukana wesodium sulfide, zvakakosha kufunga nekudzora zvinhu zvakasiyana-siyana zvinogona kukanganisa mashandiro ayo munzvimbo yakaoma yekugadzirisa zvicherwa. Nekuita izvi, indasitiri yekugadzira zvicherwa inogona kuwana mwero wepamusoro wekudzoserwa kwezviwanikwa, mitengo yakaderera yekugadzira, uye budiriro inogara kwenguva refu.