Matsayin Sodium Sulfide a Tsarin Ma'adinai

Gabatarwa

A cikin hadaddun da mahimmanci filin sarrafa ma'adinai, daban-daban sinadaran reagents taka key rawa a inganta rabuwa da kuma hakar na m ma'adanai. Daga cikin wadannan, sodium sulfide (Na₂S) ya yi fice a matsayin sinadari mai iya aiki da yawa. Yana da ayyuka da yawa a cikin nau'ikan ayyukan sarrafa ma'adinai daban-daban, musamman a cikin iyo matakai, waɗanda suke da mahimmanci don ingantaccen dawo da ma'adanai daga ma'adanai.

Abubuwan Sinadarai na Sodium Sulfide

Sodium sulfide gishiri ne da aka samu daga hydrogen sulfide, acid dibasic mai rauni. A cikin mafita mai ruwa a cikin dakin da zafin jiki da matsa lamba ɗaya na yanayi, daga cikin nau'ikan kwayoyin halitta sama da 30 da nau'in sulfur na ionic, shida kawai suna da ƙarfi da ƙarfi: HSO₄⁻, SO₄²⁻, H₂S, HS⁻, da S²⁻. Matsakaicin pH na tsarin ruwa shine mahimmancin sarrafawa mai mahimmanci a cikin iskar oxygenation na hydrogen sulfide. A ƙasa pH 6. "Hydrogen sulfide kwayoyin halitta" shi ne rinjaye rage jinsunan sulfur. A pH 7. Rage nau'in sulfur a cikin maganin an raba daidai tsakanin "narkar da hydrogen sulfide" da nau'in bisulfide (HS⁻), tare da HS⁻ shine babban nau'in nau'in pH na 8 - 11.

Ayyukan Sodium Sulfide a Tsarin Ma'adinai

Mai hana Sulfide Minerals

Sodium sulfide yana da tasiri inhibitor don yawancin ma'adinan sulfide lokacin amfani da su da yawa. Tsarin tasirin hanawa akan ma'adanai sulfide gabaɗaya yana raguwa kamar haka: galena, sphalerite, chalcopyrite, bornite, covellite, pyrite, da chalcocite. Musamman, saboda kyakkyawan yanayin floatability na molybdenite, sodium sulfide ba zai iya hana shi ba. Ana amfani da wannan sifa a cikin flotation na molybdenite, inda za a iya amfani da Na₂S don murkushe flotation na sauran ma'adanai sulfide, ba da damar zaɓin rabuwa na molybdenite.

Sulfidizing Agent na Non-Ferrous Metal Oxide Ores

Masu tara xanthate ba za su iya kama takin ƙarfen da ba na ƙarfe ba. Duk da haka, lokacin da aka ƙara sodium sulfide zuwa ɓangaren litattafan almara kafin xanthate flotation, yana amsawa tare da saman ma'adanai oxide da ba na ƙarfe ba. Wannan halayen yana haifar da samuwar fim na bakin ciki na ma'adanai sulfide a saman ma'adinan oxide. Misali, idan farin gubar ya yi maganin sodium sulfide, launin samansa yana canzawa daga fari zuwa duhu; kuma lokacin da malachite ya amsa da sodium sulfide, launin samansa yana canzawa daga kore zuwa baki mai duhu. Wadannan canje-canjen launi suna nuna nasarar nasarar fim din sulfide daban-daban da ma'adinai na asali. Bayan sulfidization, xanthate zai iya kama wadannan ma'adanai yadda ya kamata, don haka inganta flotation dawo da mara-ferrous karfe oxide ores.

Wakilin Desorbing na Sulfide Mineral Mixed Concentrates

Lokacin da aka yi amfani da babban adadin sodium sulfide, zai iya lalata xanthate - nau'in masu tarawa da aka tallata a saman ma'adanai. A cikin rabuwar gubar - abubuwan da aka haɗe da zinc ko jan ƙarfe - haɗaɗɗun gubar, ɓangaren litattafan al'ada na iya fara maida hankali. Sa'an nan kuma, an ƙara yawan adadin sodium sulfide don lalata masu tarawa a saman ma'adinai. Bayan haka, ana wanke ɓangaren litattafan almara, kuma ana ƙara ruwa mai kyau don sake daidaita ɓangaren litattafan almara don motsi na rabuwa na gaba. Wannan tsari yana taimakawa wajen kawar da tsangwama na masu tarawa na asali kuma yana ba da damar ingantaccen rabuwar ma'adanai daban-daban a cikin haɗakar da hankali.

Kawar da ions masu cutarwa a cikin ɓangaren litattafan almara

Sodium sulfide na iya amsawa tare da ions ƙarfe da yawa don samar da hazo sulfide maras narkewa. A cikin ɓangaren litattafan almara, sau da yawa akan sami wasu ions na ƙarfe waɗanda zasu iya yin mummunan tasiri akan iyo, kamar wasu ions na ƙarfe masu nauyi. Ta hanyar ƙara sodium sulfide, waɗannan ions na ƙarfe masu cutarwa za a iya cire su daga ɓangaren ma'adinai a cikin nau'i na sulfide precipitates, don haka samar da yanayi mai kyau na sinadarai don yin iyo da kuma inganta yawan yawan ruwa.

Abubuwan Da Suka Shafi Amfani da Sodium Sulfide a Tsarin Ma'adinai

1. Ilimin Ma'adinai: Bambance-bambancen ma'adinai na ma'adinai na iya samun tasiri mai mahimmanci. Alal misali, a cikin oxide ore sulfidization, haɗin gwiwa - kasancewar ma'adanai daban-daban kamar galena, sphalerite, da cerussite a cikin ma'adinai na iya dagula tsarin dauki. Hakazalika, kasancewar ma'adinan oxide daban-daban kamar malachite, azurite, atcamite, da chrysocolla tare kuma suna shafar tasirin sulfidization.

2. Sodium Sulfide - Cin Ma'adanai: Ma'adanai irin su pyrite, marcasite, talc, cerussite, clays, slimes, alkaline earth salts, gypsum, da chlorides na iya cinye sodium sulfide. Wannan amfani na iya haifar da ƙarancin adadin sodium sulfide da ake samu don halayen da ake so a cikin tsarin flotation, don haka rage tasirin sa.

3. pH Darajar: A babban adadin sodium sulfide, pH na ɓangaren litattafan almara na iya zama wuce kima. Wannan matsananciyar yanayin pH na iya ba kawai rinjayar halayen sinadarai na sodium sulfide tare da ma'adanai ba amma har ma yana tasiri aikin sauran reagents a cikin tsarin flotation, a ƙarshe yana rinjayar rabuwa da dawo da ma'adanai.

4. Wuri da Adadin Matakan Ƙara Sodium Sulfide: Batu da adadin lokutan da aka ƙara sodium sulfide yayin aiwatar da ruwa shima yana da mahimmanci. Wuraren da ba daidai ba ko rashin daidaitaccen adadin matakan kari na iya haifar da rashin daidaituwar rarraba sodium sulfide a cikin ɓangaren ma'adinai ko halayen da ba su dace ba, duka biyun na iya rage ingancin ayyukanta.

5. Haɗin Ruwa: Abubuwan da ke tattare da ruwa da ake amfani da su a cikin tsarin tafiyar ruwa, musamman ma abubuwan da ke cikin calcium, magnesium ions, da taurin ruwa, na iya yin hulɗa tare da sodium sulfide da ma'adanai. Waɗannan hulɗar na iya haɓaka ko hana halayen sodium sulfide, don haka yana shafar rawar da yake takawa wajen sarrafa ma'adinai.

Kammalawa

Sodium sulfide yana taka rawa mai yawa kuma ba makawa a cikin sarrafa ma'adinai, musamman a cikin iyo. Yana aiki a matsayin mai hanawa, sulfidizing wakili, desorbing wakili, da ikon kawar da cutarwa ions taimaka muhimmanci ga m rabuwa da dawo da muhimmanci ma'adanai daga daban-daban iri iri. Duk da haka, don cikakken amfani da yuwuwar sodium sulfide, ya zama dole a yi la'akari da hankali da sarrafa abubuwa daban-daban waɗanda zasu iya shafar aikin sa a cikin hadadden yanayin sarrafa ma'adinai. Ta yin haka, masana'antar sarrafa ma'adinai za ta iya samun mafi girman adadin dawo da albarkatu, rage farashin samarwa, da ƙarin ci gaba mai dorewa.