Matsayin Sodium Sulfide a Tsarin Ma'adinai

Gabatarwa

A cikin wani muhimmin fanni na sarrafa ma'adanai , nau'ikan sinadarai daban-daban suna taka muhimmiyar rawa wajen inganta rabuwa da fitar da ma'adanai masu mahimmanci. Daga cikin waɗannan, sodium sulfide (Na₂S) ya shahara a matsayin sinadari mai amfani da yawa kuma ana amfani da shi sosai. Yana da ayyuka da yawa a cikin nau'ikan ayyukan sarrafa ma'adanai daban-daban, musamman a cikin hanyoyin flotation , waɗanda suke da mahimmanci don dawo da ma'adanai cikin inganci 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 wani ingantaccen mai hana yawancin ma'adanai na sulfide ne idan aka yi amfani da shi da yawa. Tsarin tasirin hana shi akan ma'adanai na sulfide gabaɗaya yana raguwa kamar haka: galena, sphalerite, chalcopyrite, bornite, covellite, pyrite, da chalcocite. Abin lura, saboda kyawun yanayin iyo na molybdenite, sodium sulfide ba zai iya hana shi ba. Ana amfani da wannan halayyar a cikin iyo na molybdenite, inda za a iya amfani da Na₂S don danne iyo na sauran ma'adanai na sulfide, wanda ke ba da damar rabuwa da 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 na Ma'adinai : Bambancin ilimin ma'adinai na ma'adinai na iya yin tasiri mai mahimmanci. Misali, a cikin sinadarin oxide ore sulfidization, kasancewar ma'adanai daban-daban kamar galena, sphalerite, da cerussite a cikin ma'adinan na iya rikitar da tsarin amsawar. Hakazalika, kasancewar ma'adanai daban-daban na oxide kamar malachite, azurite, atacamite, da chrysocolla tare suma suna shafar tasirin sulfidation.

2. Sodium Sulfide - Ma'adanai Masu Cin Abinci : Ma'adanai kamar su pyrite, marcasite, talc, cerussite, clays, slime, alkaline earth salts, gypsum, da chlorides na iya cinye sodium sulfide. Wannan shan na iya haifar da rashin isasshen adadin sodium sulfide da ake samu don halayen da ake so a cikin tsarin shawagi, ta haka rage ingancinsa.

3. Darajar pH : Idan aka yi amfani da sinadarin sodium sulfide mai yawa, sinadarin pH na ma'adinan zai iya wuce gona da iri. Wannan yanayin pH mai tsanani ba wai kawai zai iya shafar halayen sinadarai na sodium sulfide tare da ma'adanai ba, har ma yana iya shafar aikin sauran sinadaran da ke cikin tsarin flotation, wanda a ƙarshe zai shafi rabuwa da dawo da ma'adanai.

4. Wuri da Yawan Matakan Ƙarin Sodium Sulfide : Maki da adadin lokutan da aka ƙara sodium sulfide yayin aikin flotation suma suna da mahimmanci. Wuraren ƙarin da ba daidai ba ko kuma adadin matakan ƙarin da ba daidai ba na iya haifar da rarraba sodium sulfide mara daidaito a cikin ɓangaren ma'adinai ko kuma halayen da ba daidai ba, waɗanda duka biyun na iya rage ingancin ayyukansa.

5. Tsarin Ruwa : Tsarin ruwan da ake amfani da shi a cikin tsarin shawagi, musamman ma sinadarin calcium, ions na magnesium, da kuma taurin ruwa, na iya hulɗa da sodium sulfide da ma'adanai. Waɗannan hulɗar na iya haɓaka ko hana halayen sodium sulfide, wanda hakan ke shafar rawar da yake takawa a sarrafa ma'adanai.

Kammalawa

Sodium sulfide yana taka muhimmiyar rawa a fannin sarrafa ma'adanai, musamman a fannin flotation. Yana aiki a matsayin mai hana ruwa, mai hana sulfidation , mai rage yawan sinadarin sodium, da kuma ikonsa na kawar da ions masu cutarwa suna taimakawa sosai wajen rabawa da kuma dawo da ma'adanai masu mahimmanci daga nau'ikan ma'adanai daban-daban cikin inganci. Duk da haka, don amfani da cikakken damar sodium sulfide, yana da mahimmanci a yi la'akari da kuma sarrafa abubuwa daban-daban da za su iya shafar aikinsa a cikin yanayi mai rikitarwa na sarrafa ma'adanai. Ta hanyar yin hakan, masana'antar sarrafa ma'adanai na iya cimma babban adadin dawo da albarkatu, rage farashin samarwa, da kuma ci gaba mai dorewa.