Pyrite yokuwugazinga zikhiqizwa emazweni amaningi

Pyrite - igama iqembu amaminerali, okuyizinto ezibangela of izinsimbi kusukela iqembu tin, nickel, insimbi, ayibe, i-platinum. Zezakhi kungenzeka njengoba isibabule arsenic ne-antimony-selenium noma.

Calcination pyrite kusikisela ukuthi feedstock ungukukhanya ngombala, ucwebezela ngendlela ekhangayo metallic, nobulukhuni kusuka 3 kuya 7. yensimbi noma yensimbi pyrite (FeS2 ifomula), eyaziwa nangokuthi pyrite, kuyinto materials eziwusizo zezimboni omahhadla otholakala kulo dioxide nesibabule (kumaseli ukukhiqiza). Ngokubukeka, amaminerali kuyisimo mass amakristalu encane ifomu efanele aphuzi-grey ngombala nge nobulukhuni 6-6.5. Ukwakheka pyrite okumsulwa yakhiwa amaphesenti angaba ngu-47 yensimbi kanye amaphesenti angaba ngu-53 isibabule.

Calcination pyrites ephelezelwa ukudlula eziningi zamakhemikhali, olokuqala ohlinzekela ukunwetshwa sulfide amaminerali yensimbi nesibabule isimo umusi (lokushisa mayelana 500 C). Khona-sulphur evala kuthiwa combusted, enika sulphur dioxide, nensimbi oxide noma sulfide inikeza oxide okuxubile. Kulokhu sulphide uyaphakama awangaphelela, wakha 'ikhandlela, "okungabandakanya izinto fayalite nezinye, kuye amanyela emkhandweni feedstock.

Calcination pyrites olungakhiqiza esigabeni igesi ethile SO3, admixed nge SO2. Le into enza ngendlela ukugqwala imishini, ngakho ukunciphisa izinga lokushisa igesi SO3 kwayo kuleyo ndawo yokuhweba imishini esithandweni kufanele ibe mayelana 850S, bese ngokushesha udedele ukuze 400C.

pyrite yokuwugazinga luqhutshwa emazweni amaningi, njengoba Le nto kungokwalabo ezivamile. ERussia, lokhu yezimbiwa limbiwa ezweni Soymenskoy, Kalitvinskom ensimini, mayelana Kushva, izitshalo zenkolo eCaucasus, ku Ryazan futhi Smolensk zifunda, futhi kwezinye izindawo. Phesheya, imali Spanish ezidumile ikakhulukazi (ikakhulukazi Aguas Tenidas lapho impahla ayiqukethe zethusi, kodwa has a okuqukethwe sulphur ngaphezulu) iphinde yoniwe ukuthuthukiswa kwe-US, eFrance, eNorway, eSweden. pyrites sulfuric ngokwemvelo ngokuvamile admixed arsenic zama-ketshezi, esihlinzeka okuphothula eziyingozi kakhulu ekukhiqizeni kumaseli. Ngakho-ke, abakhiqizi azame ukusebenzisa izinto zokusetshenziswa okumsulwa. Ngokwesibonelo, izimboni Russian Petersburg, usebenza pyrites Swedish.

Yokuwugazinga yensimbi pyrites (nesibabule) senziwa amaziko, lapho impahla eluhlaza sidla ngokusebenzisa screw noma umlomo wombhobho. Ngaphezu kwalokho, kwathi ixubene nenqwaba yezinto ezibonakalayo okuqinile okuyinto vele ekuhlanganisweni (embhedeni fluidized phezu lethusi, emoyeni ihlinzekwa kusukela ngezansi ngaphansi kwazo), ngemva kwalokho kwenzeka le zamakhemikhali, enika igesi (isusiwe) kanye ikhandlela (wathela amapayipi ngokwengxenye ekhethekile). Futhi isithando ukushisa okudlulele isuswe ngu izakhi amanzi indlu.

Calcination pyrite siyophumelela uma ebusweni ukuxhumana okuphakelayo umoya ngokwanele okusezingeni eliphezulu. Ngakho-ke, amaminerali ngokuvamile kusetshenzwe kusimo ziyacolwa (e amaziko ezifanele), lapho ubukhulu kuyizinhlayiyana lincane kangangokuthi oxygen lingena kalula ngaphakathi mass lomcebo. Ngaphezu kwalokho, isilawuli lokushisa kubalulekile ngoba namaminerali kuleli kilasi zivame sintered at okushisa ngenhla 900 C. Ukuze ukuxazulula le nkinga liyasetshenziswa njengendlela ukucutshungulwa uthuli emoyeni ingxube, okuyinto ivumela ukuqala izinto ukuba ashise okushisa afinyelela ku-1000 C, ethuthukisa kwemikhiqizo lifakazelwa.