Isifinyezo sendlela yokuhlelwa ye-ejenti ye-learting yemvelo enobungane bemvelo

Isifinyezo sendlela yokuhlelwa ye-ejenti ye-learting yemvelo enobungane bemvelo

Njengoba izwe libhekisisa ngokwengeziwe ekuvikelweni kwezemvelo, kufanele kube ngumsebenzi kahulumeni wokukhuthaza ukuthuthukiswa kwamaphrojekthi wezimboni eziluhlaza ngokuqina kokungcola okuphansi namazinga wezobuchwepheshe ajwayelekile, futhi akhuthaze ukwenziwa kwezindlela zobuchwepheshe zokuvikela amathuba emvelo ukuze Ukulawula nokulawula ukungcoliswa kwemvelo kusuka kumthombo. Gxila. Ngokuthuthuka okuqhubekayo kobuchwepheshe bokucubungula amaminerali, igolide (i-non-ferrous Metal) ama-ejenti wokucubungula amaminerali nawo ahlala wethulwa futhi asungula phansi. Ama-ejenti wegolide aphansi futhi anobuntu obunobungane nemvelo okuhloswe ngawo ukubuyisela indawo ye-sodium cyanide ukuqhakaza ezweni lonke. Izithako eziphambili zalabo abanjalo yilezi: Kwakhiwa nge-Thiocyanate, Thiurea, Urea kanye nezinye izimpendulo zamakhemikhali ezingezwe nge-caustic soda. Uma kuqhathaniswa ne-Cyanide yendabuko, inenobuthi obuphansi futhi iphephile kakhulu ukuyisebenzisa. Kubaluleke kakhulu ngegolide (i-non-ferrous Metal) ukukhiqizwa nokuvikelwa kwemvelo.

Indlela yokuhlanganiswa ekhiqiza i-ejenti ye-excriction ephansi nemvelo enobungane esebenzisa i-urea, i-caustic soda kanye ne-soda umlotha njengoba izinto eziphambili eziluhlaza zifingqiwe kafushane kanjena:

Indlela yoku-1: Ukushisa urea kanye no-soda umlotha ku-molten state ku-sodium ye-sodium (potassium), uvuse futhi uncibilike, bese ukhipha futhi upholile; Umkhiqizo osuqediwe ohlelwe ngale ndlela wahlaziywa yi-X-RAY PREFRACT ukunquma ukuthi ngabe yahlanganiswa ngaphansi kwezimo ezahlukahlukene. Isigaba somkhiqizo womkhiqizo, imiphumela ikhombisa ukuthi: I-ejenti ye-Gold Leading yahlanganiswa kusuka kuma-reagents anjenge-potassium ephuzi i-potassium, i-urea kanye ne-soda umlotha ihlanganiswa nge-sodium carbonate, i-sodium cyanate, kanye nesigaba esisha Kukhiqizwe futhi. Sebenzisa kuphela noma eyodwa noma zombili izimpendulo ezingenhla ezingakha isigaba esisha. Njengoba zonke ezinye izigaba zehluleka ukwenza i-leach igolide, kungenzeka ukuthi isigaba esisha senziwe njenge-ejenti ye-leach yegolide. Ngakho-ke, ukuhlangana kwama-reagents amathathu ama-potassium aphuzi aphuzi, urea kanye no-soda ash kuyisimo esidingekayo sokuhlanganiswa kwe-syntherant esebenzayo yegolide equkethe isigaba esisha. Ukushisa okugazingiswa kwale ndlela kunomthelela omkhulu emphumeleni othosiwe kanye nokwakheka kwezigaba ezintsha. Lapho izinga lokushisa liphakeme kune-550 ° C, amafomu esigaba esisha, kepha ngo-800 ° C, isigaba esisha siyanyamalala, futhi isigaba esisha esakhiwe singase sibe singazinzile. Le ndlela isebenzisa usawoti wegazi ophuzi ne-potassium, ebiza kakhulu futhi inenani lokufaka eliphakeme, okuholela ezindlekweni zokukhiqiza eziphezulu.

Indlela 2: Ukushisa urea, i-SODA Ash, i-Catalyst, kanye nama-inhibitors ku-molten state, kugcinwe kufudumele isikhathi esithile, ukuphuma nokupholile, ukuchoboza kanye nephakheji; Le ndlela futhi isebenzisa umlotha we-urea ne-soda njengezinto eziphambili ezingavuthiwe, kepha engeza i-catalyst ingakhuthaza ukusabela emazingeni okushisa aphakathi naphansi. Ngasikhathi sinye, kufakwa ama-inhibitors ngesikhathi senqubo yokwenza inqubekela phambili ukuvimbela umkhiqizo ekuvuseleleni amazinga okushisa aphezulu futhi adale ukunyamalala kwezigaba ezintsha, okuthinta umkhiqizo. Ukuhlaziywa kwe-X-RAY Ukuhlaziywa komkhiqizo osuqediwe osulwe ngale ndlela kungaveza nezigaba ezintsha ezingadlala indima yokucwiliswa ngegolide. Izindleko zale ndlela ziphansi, okuqukethwe kwezithako ezisebenzayo kumkhiqizo kuyalawuleka, futhi okuqukethwe kwezithako ezisebenzayo kuphakeme kunalokho kwendlela eyodwa.

Indlela Yesithathu: I-Urea Ash, i-SODA Ash, kanye nokunciphisa i-ejenti embusweni oncibilikisiwe. Ngemuva kokuthi ukusabela sekuqediwe, upholile phansi, crash kanye nephakheji. Le ndlela ngokuyisisekelo isebenzisa umlotha we-urea ne-soda ukuphendula endaweni yokushisa ethile ukuhlanganisa i-sodium clanate. Ukunciphisa ama-ejenti anjenge-iron powder kanye nokunciphisa i-carbon powder kunganciphisa i-sodium cyanate ibe yinto enobuthi be-sodium cyanide kakhulu. Le ndlela ibiza kakhulu futhi ingavumelanisa imikhiqizo ephezulu yokuqukethwe. Ukuhlaziywa kwe-X-RAY Ukuhlaziywa kukhombisa ukuthi asikho isigaba esisha esakhiwa, ikakhulukazi i-sodium cyanide.

Izinto eziphambili eziluhlaza zalezi zindlela ezintathu ezingenhla zingu-Urea and SODA Ash. Ingxube ye-soda ash kanye ne-sodium cyanate ingasetshenziswa futhi njengenye impahla eluhlaza ukugwema i-ammonia gesi ekhiqizwe ukusabela kwangaphambili ekungcoliseni imvelo. Imishini yokuphendula yalezi zindlela ezintathu iyafana, futhi izinyanga ezishisa kagesi eziphakeme noma uwoyela wedizili angasetshenziswa. Noma isiguquli esidonswe ngegesi ukukhiqizwa.