Ukuqoqa i-ejenti yi-ejenti ye-flotation eshintsha i-hydrophobicity yendawo yamaminerali futhi yenza izinhlayiya zamaminerali ezintantayo zinamathele kuma-bubble. Isigaba esibaluleke kakhulu okufanele usikhethe ama-potions. Inezakhiwo ezimbili eziyisisekelo ezibalulekile: (1) Ingakhethwa ngokukhethekile ama-adsorbed on the mineral ebusweni; (2) Kungakhuphula i-hydrophobicity yendawo yamaminerali, okwenza kube lula ukulandela ama-bubble, ngaleyo ndlela kuthuthukise ukufunyanela kwamaminerali. I-Xanthate ingenye yabaqoqi ababalulekile!
Izakhiwo ze-xanthate:
I-Xanthate yi-Xanthate, igama lakhe lesayensi lingu-hydrocarbyl dithiocarbonate. Kungabhekwa njengomkhiqizo we-carbonate lapho i-ion eyodwa yensimbi ithathelwa indawo yiqembu le-hydrocarbyl kanye nama-athomu amabili angu-oksijini athathelwa indawo ama-athomu se-sulfure. Ngokuvamile ifomula yiR-OCSSME, njengeSodium Ethyl xanthate. R kwifomula ejwayelekile imvamisa i-aliphatic hydrocarbon group CNH2N + 1, lapho i-n = 2 ~ 6 yi-Aromatic hydrocarbon Group, i-cycloalkyl gert, njll. Mina njalo, + + ), kanye nemikhiqizo yezimboni ivame ukuba na (+). Izakhiwo zeKaxanthate ne-Sodium Xanthate ziyefana, kepha iKaxaniate zizinze ngokwedlula i-sodium xanthate, i-sodium xanthate ilula ukudiliza, kanti i-kaxanate ingeyona into ehlehlisile, kanti intengo ye-sodium xanthate iphansi kunaleyo ye-sodium xanthate. Zonke zincibilika kalula emanzini, utshwala ne-acetone.
Imvamisa, i-methyl xanthate ne-ethyl xanthate zibizwa nge-xanthate ephansi, futhi labo abane-buryl futhi ngenhla babizwa ngokuthi i-Xanthate ephezulu. Xanthate yi-crystalline noma i-powder. Ukungcola kuvame ukungcola - okuluhlaza okotshani noma okubomvu okubomvu okubomvu okune-density ka-1.3 ~ 1,7 g / cm3. Inephunga le-pungent futhi linobuthi (medium). I-Xanthate ye-Short-chain igcotshwa kalula emanzini, incibilika e-acetone notshwala, futhi incibilikisa kancane ku-ether kanye ne-petroleum ether. Ngakho-ke, indlela ye-solvent-ether-ether isetshenziselwe ukuphinda uphinde uhlole i-xanthate.
Isicelo nokugcinwa kwe-xanthate
Ikhono lokuqoqa kanye nokukhetha kwe-xanthate yamaminerali ahlukahlukene kuhlobene kakhulu nomkhiqizo wokuhleleka we-xonthate wawo ohambelana ne-xanthate. Amaminerali ajwayelekile wensimbi ajwayele ukuhlukaniswa izigaba ezintathu ezisuselwa kumkhiqizo we-solubility wensimbi ye-ethyl xanthate: (1) Umkhiqizo we-chability wensimbi: Izinsimbi eziwela kulesi sigaba zifaka i-AU, AG, HG, CU, PB, SB, CD, CO, BI, njll. Xu, i-AG, CU, njll.) Nensimbi Amaminerali we-Sulfide wezinto ezinjalo. . Izinsimbi eziwela kulesi sigaba zifaka phakathi i-ZN, FE, MN, njll. Xanthate zinekhono elithile lokuqoqa amaminerali we-sulfide wensimbi, kepha abuthakathaka. Uma i-xanthate isetshenziswa njengomqokeleli, kulula ukufeza ukuhlukaniswa kwe-flotation kwamaminerali e-sulfide metal alemetals ye-chalcophile kanye namaminerali e-sulfide wensimbi okuyizinto ze-siderfide. Yize imikhiqizo ye-solubity ka-Ethyl xanthate ye-cobalt ne-nickel ingaphansi kuka-10 . Ama-Metals angalo mkhakha afaka i-CA, MG, BA, njll. Ngenxa yomkhiqizo omkhulu we-solubility wensimbi yalo ye-ethyl xanthate, ifilimu le-hydrophobic alikwazi ukwakhiwa phezu kwalolu hlobo lwamaminerali ensimbi ngaphansi kwezimo ezijwayelekile ze-flotation, futhi i-xanthate ayinalo Ukuqoqa Umphumela kulolu hlobo lwamaminerali ensimbi. Ngakho-ke, i-xanthate ayisetshenziswa njengeqoqo lapho ihlela amaminerali ensimbi e-alkali kanye ne-alkali yensimbi yensimbi, amaminerali oxide kanye namaminerali athulile. Ngokuvamile, umkhiqizo we-solubity wamaminerali we-sulfide metal mancane mncane kunomkhiqizo wokuhleleka wensimbi ehambisanayo ye-ethyl xanthate. Ngokusho kwemigomo yamakhemikhali, akunakwenzeka nge-Xanthate Anion X (-) ukuphendula ngobuso bamaminerali wensimbi sulfide bese ubeka esikhundleni se-S (2-). Kuphela lapho ububanzi be-metal sulfide mineral mineral budewa kancane, abakwa-S (2-) ebusweni be-Metal Sulfide Mineral Mineral ithathelwa indawo ngu-Oh (- - 2-), S2O3 (2-); 2-), nangemva kwe-plasma, insimbi lapho umkhiqizo we-xanthate omncane uncibilika kunomkhiqizo olulalelayo wensimbi oxide, kungenzeka xanthate anion x (-) ukufaka esikhundleni i-anion ehambelana ne-wetal oxide ebusweni bamaminerali e-sulfide metal. I-Xanthate ivame ukusetshenziswa njengomqokeleli wezinsimbi zemvelo (njenge-AU, AG, CU, njll. Ukuze uvikele i-hydrolysis, ukubola kanye nokukhanya kwe-oxidation ngokweqile kwe-xanthate, i-xanthate kufanele igcinwe ezitsheni ze-airtight. Gwema ukuxhumana nomoya namanzi anomswakama, nakani ubufakazi obungenamanzi kanye nobufakazi, futhi akufanele kuvezwe elangeni noma kugcinwe isikhathi eside. Kufanele igcinwe endaweni epholile, eyomile futhi enomoya. Isixazululo esilungiselelwe esilungiselelwe i-Xanthate Aquad akufanele sishiywe isikhathi eside kakhulu, futhi amanzi ashisayo akufanele asetshenziselwe ukulungiselela isisombululo se-Xanthate aquave. Isixazululo se-xanthate samanzi ngokuvamile sisetshenziswa ngokushintshana ngesisekelo, futhi ukugcwaliseka kwe-xanthate ukulungiselela kuvame ukuba ngu-5%.
Isikhathi sePosi: Sep-13-2024
