hexane, heptane, pentane, alaab-qeybiyeyaasha octane iyo soosaarayaasha Shiinaha
Isticmaalka ugu weyn ee n-hexane
N-hexane waa dareere dabiici ah oo wanaagsan oo aan sun ahayn, oo si ballaaran loogu isticmaalo soo saarista saliidda khudradda, butyl, butadiene rubber synthesis organic, propylene, olefin polymerization, dhexdhexaadinta dawooyinka, khafiifiyeyaasha rinjiga, iyo nadiifinta dusha birta ee qalabka farsamada.
Horumarinta iyo codsiga ugu weyn ee n-hexane
Suuqa ugu weyn ee n-hexane waxaa loo isticmaalaa warshadaha saliidda qudaarta, taas oo ka dhigan in ka badan 60% wadarta guud ee n-hexane. Inta badan codsiyada soo hadhay waxay ku jiraan warshadaha caagga iyo kiimikaad.
Horraantii 1960-kii, dalalka horumaray ee reer galbeedka sida Yurub iyo Maraykanka ayaa guud ahaan kor u qaaday "habka leaching" ee soo saarista saliidda khudradda. Marka laga soo tago xoogaa yar oo saliid ah, saliidda la quuto ee adduunka ee ay soo saarto "habka leaching" ayaa qabsaday 95% suuqa. Waqtigan xaadirka ah, soosaarka saliidda caalamiga ah, n-hexane waa dareeraha guud ee habka wax soo saarka saliidda la cuni karo. Dabcan, tiro yar oo ka mid ah shirkadaha saliida ee Japan iyo South Korea waxay isticmaalaan isohexane sida dareeraha soo saarista.
Laga soo bilaabo dabayaaqadii 1980-meeyadii, Shiinuhu wuxuu bilaabay inuu si xoog leh u dhiirrigeliyo isticmaalka n-hexane sida dareere loogu talagalay daadinta saliidda khudradda.
Astaamaha geeddi-socodka leaching hexane: Kala duwanaanshaha distillation hexane waa gaaban yahay, dareeraha iyo walxaha waxyeellada leh ayaa si fiican loo beddelaa, nafaqooyinka saliidda khudradda aan la baabi'in heerkulka sare, badbaadada saliidda la cuni karo ayaa la xoojiyay, isticmaalka dareeraha hooseeya, hooseeya hadhaaga, soosaarka saliida sare, si sahlan wax soo saarka miisaanka warshadaha.
Waqtigan xaadirka ah, gudaha ee Shiinuhu maalgeliyo iyo kuwa wadajirka ah iyo shirkadaha wax soo saarka saliidda la cuni karo ee gaarka loo leeyahay ayaa inta badan u isticmaala n-hexane sida dareere dareere ah. Shirkadahani waxay soo saaraan in ka badan 90% saliidda cuntada ee suuqa gudaha.
Isticmaalka n-hexane sida dareeraha soo saarista saliidda qudaarta waa shuruud adag oo gobolka u ah warshadaha warshadaynta saliida la cuni karo iyo heerarka tayada alaabta. Sidaa darteed, n-hexane waxa ay noqotay wax soo saarka dareeraha ah ee sida caadiga ah loo isticmaalo habaynta saliidda la cuni karo, kaas oo sidoo kale ah hexane gudaha iyo dibadda ah sannadihii la soo dhaafay. In ka badan No. 6 saliidda dareeraha ah, butane iyo dareerayaasha kale ayaa noqday noocyada ugu muhiimsan ee dareeraha saliidda qudaarta.
Qodob kale ayaa ah in warshadaha soo saarista saliidda khudradda, n-hexane ay leedahay door gaar ah oo aan la bedeli karin. N-hexane wuxuu leeyahay magaca "boqorka soo saarista". Ilaa hadda, ma jiro wax dareere ah oo awooday in uu dhaafo n-hexane marka la soo saarayo.