Matsayin Ammonium Sulfate a Tsarin Ma'adinai

Gabatarwa

Sarrafa ma'adinai mataki ne mai mahimmanci wajen fitar da ma'adanai masu mahimmanci daga ma'adanai. Daga cikin fasahohin da ake amfani da su, flotation yana daya daga cikin hanyoyin da aka fi amfani da su. A cikin wannan tsari, Sinadarin Amonium yana taka muhimmiyar rawa, yana ba da gudummawa ga ingantaccen rabuwa da dawo da ma'adanai. Wannan labarin zai bincika ayyuka da yawa na ammonium sulfate a ciki sarrafa ma'adinai, zurfafa cikin hanyoyinsa da aikace-aikacensa.

Abubuwan da ke cikin Ammonium Sulfate

Ammonium sulfate shine farin crystalline mai ƙarfi. Yana narkewa cikin sauƙi a cikin ruwa, wanda shine maɓalli mai mahimmanci don aikace-aikacensa a cikin sarrafa ma'adinai. A ƙarƙashin yanayi na al'ada, fili yana da ingantaccen tsarin sinadarai. Amma idan aka shigar da shi cikin yanayin sarrafa ma'adinai, zai iya shiga cikin halayen sinadarai daban-daban.

Ayyuka a cikin Flotation

A matsayin Mai Tarin Tara

A cikin tsarin tafiyar da ruwa, masu tara abubuwa sune abubuwan da suke zaɓan maƙalla a saman ma'adinan da aka yi niyya, suna sanya su hydrophobic kuma suna ba da damar raba su ta hanyar flotation. Ammonium sulfate na iya haɓaka hulɗar tsakanin masu tarawa da ma'adanai. Misali, a cikin yawo na wasu ma'adanai na sulfide, ammonium sulfate na iya amsawa tare da saman ma'adinai, yana canza halayen sinadarai. Wannan gyare-gyare yana inganta tallan masu tarawa, irin su xanthates, a kan saman ma'adinai. Abubuwan ions a cikin ammonium sulfate na iya yin hulɗa tare da ions na ƙarfe akan saman ma'adinai, samar da gidaje ko canza cajin saman. Wannan canji a cikin abubuwan da ke cikin ƙasa yana ƙaruwa da alaƙa tsakanin mai tarawa da ma'adinai, inganta haɓakar haɓakar ma'adinai.

A matsayin mai daidaita pH

Ƙimar pH na ɓangaren litattafan almara mai mahimmanci abu ne mai mahimmanci wanda ke rinjayar halin hawan ruwa na ma'adanai. Ammonium sulfate na iya aiki azaman mai daidaita pH a wasu lokuta. Lokacin da aka narkar da a cikin ruwa, ammonium sulfate yana tafiya ta hanyar sinadarai wanda ke fitar da ions hydrogen, wanda dan kadan ya sa ɓangaren litattafan almara. A cikin yawo na wasu ma'adanai, kamar wasu ma'adanai na oxide, ana buƙatar takamaiman kewayon pH don mafi kyawun ruwa. Ta hanyar daidaita pH tare da ammonium sulfate, ana iya canza abubuwan da ke cikin ma'adanai. Misali, a cikin yawo na wasu ma'adanai na jan karfe oxide, yanayin acidic da aka samar da ammonium sulfate zai iya inganta kunna saman ma'adinan, yana mai da hankali ga ayyukan masu tattarawa kuma don haka inganta farfadowar ruwa.

A Matsayin Mai Tashin Hankali

A cikin hadadden tsarin ma'adinai inda ma'adanai da yawa ke kasancewa, ana amfani da abubuwan rage damuwa don hana motsin ma'adinan da ba a so. Duk da haka, a wasu yanayi, yawan amfani da abubuwan rage damuwa na iya haifar da danne ma'adinan da aka yi niyya suma. Ammonium sulfate na iya taka rawa wajen magance matsanancin damuwa. Misali, a cikin yawo na gubar - ores na zinc, idan an ƙara yawan adadin abin damuwa don hana ma'adinan zinc, hakanan yana iya yin mummunan tasiri akan hawan ma'adinan gubar. Ammonium sulfate na iya yin hulɗa tare da matsanancin damuwa ko samfuran amsawa a cikin ɓangaren litattafan almara. Yana iya rushe samuwar fina-finai masu hanawa a saman ma'adinan da aka yi niyya ko rage tallan abubuwan damuwa akan ma'adinan da aka yi niyya, ta yadda za a dawo da floatability na ma'adanai masu niyya.

A cikin Ma'adinan Oxide

1. Copper Oxide Minerals: Ma'adinan Copper oxide sau da yawa sun fi wuya a sha ruwa idan aka kwatanta da ma'adinan jan karfe sulfide. Ammonium sulfate za a iya amfani da shi a cikin iyo na jan karfe oxide ma'adanai ta hanyoyi da yawa. Da fari dai, ana iya amfani dashi a hade tare da wakili na sulfiding, irin su sodium sulfide. Ammonium sulfate yana taimakawa a cikin tsarin sulfidation ta hanyar inganta halayen da ke tsakanin wakili na sulfide da ma'adinin ma'adinai na jan karfe oxide. Yana ƙara solubility na wasu ƙarfe ions a kan ma'adinai surface, sauƙaƙe samuwar wani karin amsawa Layer sulfide. Wannan saman mai rufin sulfide sannan ana samun sauƙin kama shi ta hanyar masu tarawa kamar xanthates. Na biyu, ammonium sulfate na iya kunna saman ma'adinai na jan karfe oxide kai tsaye. Abubuwan da ke cikin ammonium sulfate na iya yin hulɗa tare da saman ma'adinan jan ƙarfe oxide, canza cajin saman da haɓaka tallan masu tarawa. Misali, a cikin hawan malachite, daya daga cikin ma'adinan jan karfe oxide na yau da kullun, an nuna ƙari na ammonium sulfate don inganta farfadowar ruwa sosai.

2. Gubar Oxide Minerals: Kamar ma'adinan jan ƙarfe oxide, ma'adinan gubar oxide kuma suna buƙatar takamaiman magani don ingantaccen iyo. Za a iya amfani da ammonium sulfate don inganta flotation na gubar oxide ma'adanai. A cikin tsarin pre-sulfidation na ma'adinan gubar oxide, ammonium sulfate na iya haɓaka tasirin sulfidation. Yana taimakawa wajen samar da fim din sulfide mafi daidaituwa da amsawa akan farfajiyar ma'adinai. Bugu da ƙari, ammonium sulfate na iya daidaita sinadarai na ɓangaren litattafan almara ta hanyar da ke haɓaka tallan masu tarawa akan saman ma'adinan gubar oxide. Ta hanyar inganta adadin ammonium sulfate da aka ƙara, za a iya inganta zaɓin da dawo da ma'adinan gubar oxide a cikin tsarin flotation.

A cikin Sulfide Mineral Flotation

1. Pyrite FlotationPyrite ma'adinan sulfide ne na kowa. A wasu lokuta, a lokacin floating na ma'adanai na sulfide masu mahimmanci, pyrite kuma na iya yin iyo tare da su, wanda zai iya rage darajar ƙaddamarwar ƙarshe. Za a iya amfani da ammonium sulfate don zaɓin yanke pyrite. Lokacin da aka ƙara zuwa ɓangaren litattafan ruwa, ammonium sulfate na iya yin hulɗa tare da saman pyrite. Yana iya samar da wani Layer a kan pyrite surface wanda ya hana adsorption na masu tarawa a kan pyrite, yayin da ba ya tasiri sosai ga floatability na ma'adanai sulfide mai mahimmanci. Wannan zaɓin bakin ciki na pyrite yana taimakawa wajen samun mafi girman matsayi na ma'adanai da ake so.

2. Copper - Zinc Sulfide Ore Flotation: A cikin hawan jan karfe - zinc sulfide ores, raba ma'adinan jan karfe da zinc aiki ne mai rikitarwa. Ana iya amfani da ammonium sulfate don daidaita yanayin hawan ruwa na waɗannan ma'adanai. Misali, ana iya amfani da shi don kunna ma'adinan jan ƙarfe yayin danne ma'adinan zinc a ƙarƙashin wasu yanayi. By a hankali sarrafa sashi na ammonium sulfate da sauran flotation reagents, kazalika da ɓangaren litattafan almara pH, yana yiwuwa a cimma mafi alhẽri rabuwa da jan karfe da kuma tutiya ma'adanai, inganta farfadowa da kuma sa na biyu jan karfe da kuma zinc concentrates.

Case Nazarin

1. Ma'adinan Copper a Kudancin Amurka: A cikin babban aikin ma'adinan tagulla a Kudancin Amirka, ma'adinan ya ƙunshi adadi mai yawa na ma'adinan jan karfe oxide. Tsarin tuwon ruwa na gargajiya yana da ƙarancin murmurewa. Bayan gabatar da ammonium sulfate a cikin tsarin flotation, dawo da jan karfe ya karu da 10 - 15%. Masu aikin hakar ma'adinai sun daidaita adadin ammonium sulfate bisa ga halayen ma'adinai. Ta hanyar inganta haɗin ammonium sulfate tare da sauran reagents irin su sodium sulfide da masu tarawa, sun sami damar inganta ingantaccen tsarin tafiyar da ruwa, wanda ya haifar da samar da tagulla mafi girma da karuwar tattalin arziki.

2. Jagora - Zinc Minne a Ostiraliya: A wani gubar Australiya - ma'adinan zinc, ma'adinan yana da rikitarwa, kuma rabuwar gubar da ma'adinan zinc yana da kalubale. Tsarin tuwon ruwa na farko ya fuskanci matsaloli kamar ƙarancin dawo da gubar da babban abun ciki na zinc a cikin tattara gubar. Bayan gudanar da bincike mai zurfi, ma'adinan ya gabatar da ammonium sulfate a cikin da'irar flotation. Ta hanyar amfani da ammonium sulfate don magance matsanancin damuwa na wasu reagents akan ma'adinan gubar da daidaita sinadarai na ɓangaren litattafan almara, sun sami damar haɓaka dawo da gubar da kashi 8 - 12% kuma sun rage abun ciki na zinc a cikin gubar da kashi 5-8%. Wannan cigaban da aka yi a cikin aikin tuwo ya haifar da haɓakar riba mai yawa na ma'adinan.

Kammalawa

Ammonium sulfate yana taka muhimmiyar rawa kuma mai dacewa wajen sarrafa ma'adinai, musamman a cikin tsarin iyo. Ayyukansa a matsayin a Mai tallatawa, pH adapter, da depressant suppressant taimaka wajen m rabuwa da dawo da daban-daban ma'adanai. Ko a cikin flotation na oxide ma'adanai ko sulfide ma'adanai, ammonium sulfate za a iya kerarre don dace da takamaiman halaye na tama da kuma bukatun da flotation tsari. Ta hanyar nazarin shari'a, a bayyane yake cewa yin amfani da ammonium sulfate daidai zai iya haifar da ci gaba mai mahimmanci a cikin aikin sarrafa ma'adinai, yawan farfadowa, da kuma mayar da hankali, a ƙarshe yana kawo fa'idodin tattalin arziki ga masana'antar hakar ma'adinai. Yayin da masana'antar hakar ma'adinai ke ci gaba da neman hanyoyin sarrafa ma'adinai masu inganci da dorewa, mai yiwuwa ammonium sulfate zai taka muhimmiyar rawa a nan gaba.