Basa reSodium sulfide muMineral Processing

ziviso

Mundima yakaoma uye yakakosha ye mineral processing, akasiyana emakemikari reagents anoita mabasa akakosha mukugadzirisa kuparadzaniswa uye kubviswa kwemaminerari anokosha. Pakati peizvi, sodium sulfide (Na₂S) inomira pachena sekemikari inogoneka uye inoshandiswa zvakanyanya. Iyo ine akawanda mabasa mumhando dzakasiyana dzemamineral processing mashandiro, kunyanya mu flotation maitiro, ayo akakosha pakudzoreredza zvakanaka kwemaminerari kubva mu ores.

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 inoshanda inhibitor kune akawanda mamineral e sulfide kana akashandiswa muhuwandu. Kurongeka kweiyo inhibitory effect pamaminerari e sulfide kazhinji inoderera sezvinotevera: galena, sphalerite, chalcopyrite, bornite, covellite, pyrite, uye chalcocite. Zvinonzwisisika, nekuda kwekunakisisa kwechisikigo kutenderera kwe molybdenite, sodium sulfide haigone kuimisa. Ichi chimiro chinoshandiswa mukutenderera kwe molybdenite, uko Na₂S inogona kushandiswa kudzvinyirira kuyerera kwemamwe maminerari e sulfide, achibvumira kuparadzaniswa kwakasarudzika kwe molybdenite.

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. Ore Mineralogy: Kusiyana kwe ore mineralogy kunogona kuve nekukanganisa kukuru. Semuenzaniso, mune oxide ore sulfidization, kugarisana kwemaminerari akasiyana senge galena, sphalerite, uye cerussite mune ore kunogona kuomesa maitiro ekuita. Saizvozvo, kuvapo kweakasiyana oxide zvicherwa semalachite, azurite, atacamite, uye chrysocolla pamwe chete kunokanganisa sulfidization maitiro.

2. Sodium sulfide - Kushandisa zvicherwa: Zvicherwa zvakadai se pyrite, marcasite, talc, cerussite, ivhu, slimes, alkaline pasi munyu, gypsum, uye chlorides zvinogona kudya sodium sulfide. Kushandiswa uku kunogona kutungamira kune huwandu husina kukwana hwesodium sulfide inowanikwa kune inodiwa maitiro muiyo flotation process, nekudaro ichideredza kushanda kwayo.

3. pH Kukosha: Pamadosi akakwirira e sodium sulfide, iyo pH ye ore pulp inogona kuwandisa. Iyi yakanyanyisa pH mamiriro anogona kusangokanganisa maitiro emakemikari esodium sulfide nemaminerari asi zvakare kukanganisa mashandiro emamwe mareagents muflotation system, zvichizokanganisa kupatsanurwa uye kudzoreredza zvicherwa.

4. Nzvimbo uye Nhamba yeSodium sulfide Yekuwedzera Matanho: Iyo poindi uye nhamba yenguva sodium sulfide inowedzerwa panguva yekuyerera flotation yakakoshawo. Zvisizvo nzvimbo dzekuwedzera kana nhamba isina kufanira yematanho ekuwedzera inogona kukonzera kusaenzana kugoverwa kwesodium sulfide mune ore pulp kana kuita kusingatarisirwe, izvo zvese zvinogona kuderedza kushanda kwayo.

5. Kuumbwa kwemvura: Kuumbwa kwemvura inoshandiswa mukugadzirisa flotation, kunyanya zvinyorwa zve calcium, magnesium ions, uye kuoma kwemvura, zvinogona kuwirirana ne sodium sulfide nemaminerari. Kudyidzana uku kunogona kukurudzira kana kuvharidzira kuita kwesodium sulfide, zvichikanganisa basa rayo mukugadziriswa kwemaminerari.

mhedziso

Sodium sulfide inoita basa rakawanda uye rinokosha mukugadzirisa zvicherwa, kunyanya mukuyerera. Inoshanda se inhibitor, sulfidizing agent, desorbing agent, uye kukwanisa kwayo kubvisa ions inokuvadza inobatsira zvikuru pakuparadzaniswa kwakanaka uye kudzorerwa kwemaminerari anokosha kubva kumarudzi akasiyana-siyana e ores. Nekudaro, kuti ushandise zvizere kugona kwe sodium sulfide, zvinodikanwa kunyatso funga uye kudzora zvinhu zvakasiyana-siyana zvinogona kukanganisa kushanda kwayo munzvimbo yakaoma yekugadziriswa kwemaminerari. Nekuita izvi, iyo indasitiri yekugadzira zvicherwa inogona kuwana yakakwira zviwanikwa zvekudzoreredza mitengo, yakaderera mutengo wekugadzira, uye kusimudzira kwakasimba.