Ukusetshenziswa okuyinhloko kwe-n-hexane
I-N-hexane iyi-solvent enhle engeyona enobuthi, esetshenziswa kakhulu ekukhishweni kukawoyela wemifino, i-butyl, i-butadiene rubber organic synthesis, i-propylene, i-olefin polymerization, i-pharmaceutical intermediates, i-peint thinners, kanye nokuhlanzwa kwendawo yensimbi yemishini engumshini.

Ukuthuthukiswa kanye nokusetshenziswa okuyinhloko kwe-n-hexane
Imakethe enkulu ye-n-hexane isetshenziswa embonini yokucwilisa uwoyela wemifino, ebalelwa ngaphezu kwama-60% yenani eliphelele le-n-hexane. Iningi lezicelo ezisele zisezimbonini zenjoloba namakhemikhali.

Ngasekuqaleni kwawo-1960, amazwe aseNtshonalanga athuthukile njengeYurophu ne-United States ngokuvamile ayekhuthaza "indlela yokucwilisa" ekukhiqizweni kukawoyela wemifino. Ngaphezu kokukhipha uwoyela osezingeni elincane, uwoyela odliwayo womhlaba okhiqizwe "indlela yokucwilisa" usethathe u-95% wemakethe. Njengamanje, emkhiqizweni kawoyela odliwayo wamazwe omhlaba, i-n-hexane iyincibilikisi evamile yenqubo yokukhiqiza uwoyela odliwayo. Kunjalo, inombolo encane yezinkampani zikawoyela eJapan naseNingizimu Korea zisebenzisa i-isohexane njengesixazululi sokukhipha.
Kusukela ngasekupheleni kwawo-1980, iShayina yaqala ukukhuthaza ngamandla ukusetshenziswa kwe-n-hexane njengesinyibilikisi sokucwiliswa kwamafutha emifino.
Izici zenqubo ye-hexane leaching: Uhla lwe-hexane distillation lufushane, i-solvent kanye nezinto eziyingozi ziguquguquka ngokuphelele, imisoco kawoyela yemifino ayibhujiswa ukushisa okuphezulu, ukuphepha kwamafutha adliwayo kuyathuthukiswa, futhi ukusetshenziswa kwe-solvent ephansi, kuphansi. izinsalela, isivuno esikhulu sikawoyela, kulula ukukhiqiza isikali sezimboni.
Njengamanje, izinkampani ezifuywayo ezixhaswe ngezimali zaseShayina futhi ezihlanganyelwe kanye nezizimele ezikhiqiza uwoyela odliwayo ngokuvamile zisebenzisa i-n-hexane njengesixazululi se-leaching. Lezi zinkampani zikhiqiza ngaphezu kuka-90% kawoyela odliwayo emakethe yasekhaya.
Ukusetshenziswa kwe-n-hexane njengesinyibilikisi esikhipha uwoyela wemifino kuyisidingo esiqinile sombuso embonini yokucubungula uwoyela odliwayo kanye namazinga ekhwalithi yomkhiqizo. Ngakho-ke, i-n-hexane isiphenduke umkhiqizo we-solvent osetshenziswa kakhulu ekucutshungulweni kukawoyela odliwayo, okuphinde kube yi-hexane yasekhaya neyangaphandle eminyakeni yakamuva. Amafutha e-solvent angaphezu kwe-No. 6, i-butane nezinye izincibilikisi ziye zaba izinhlobo ezibaluleke kakhulu ze-leaching solvent yamafutha yemifino.
Elinye iphuzu ukuthi embonini yokukhipha uwoyela wemifino, i-n-hexane inendima eyingqayizivele nengenakushintshwa. I-N-hexane inesihloko esithi "inkosi yokukhipha". Kuze kube manje, asikho isincibilikisi esikwazile ukweqa i-n-hexane ekukhishweni.