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I-Alkyl glucoside noma i-Alkyl Polyglycoside iwumkhiqizo owaziwa kakhulu wezimboni futhi ube ngumkhiqizo ojwayelekile wokugxila kuwo ezifundweni isikhathi eside.Eminyakeni engaphezu kweyi-100 edlule, uFischer Wahlanganisa futhi wahlonza i-alkyl glycosides yokuqala elabhorethri, cishe eminyakeni engama-40 kamuva, isicelo sokuqala selungelo lobunikazi esasichaza ukusetshenziswa kwe-alkyl glycosides ezintweni zokuhlanza safakwa eJalimane.Ngemva kwalokho eminyakeni engu-40-50 elandelayo, amanye amaqembu ezinkampani aphendukela ku-alkyl glycosides futhi athuthukise izinqubo zokuwakhiqiza ngokusekelwe ezindleleni zokuhlanganisa uFischer azithole.
Kule ntuthuko, umsebenzi kaFischer wakuqala wokusabela kweglucose ngotshwala obuyi-hydrophilic (njenge-methanol, i-ethanol, i-glycerol, njll.) wasetshenziswa otshwaleni obuyi-hydrophobic obunamaketanga e-alkyl, kusukela ku-octyl (C8) kuya ku-hexadecyl (C16) amafutha ajwayelekile. utshwala.
Ngenhlanhla, ngenxa yezakhiwo zabo zokusebenza, ukukhiqizwa kwezimboni akuyona i-alkyl monoglucosides emsulwa, kodwa ingxube eyinkimbinkimbi ye-alkyl mono-,di-,tri-and oligoglycosides, ikhiqizwa ezinqubweni zezimboni.Ngenxa yalokhu, imikhiqizo yezimboni ibizwa ngokuthi i-alkyl polyglycosides, imikhiqizo ibonakala ngobude beketanga le-alkyl kanye nenani elijwayelekile lamayunithi e-glycose axhunywe kuwo, izinga le-polymerization.
(Umfanekiso 1. Ifomula ye-molecular ye-alkyl polyglucosides)
Umfanekiso 1. Ifomula ye-molecular ye-alkyl Polyglucosides
I-Rohm&Haas kwakuyinkampani yokuqala ukuqhuba ukukhiqizwa ngobuningi kwe-octyl/decyl(C8~C10) glycosides ngasekupheleni kwawo-1970, ilandelwa yi-BASF kanye ne-SEPPIC.Kodwa-ke, ngenxa yokusebenza okungagculisi kwalolu chungechunge olufushane kanye nekhwalithi yombala engemihle, ukusetshenziswa kwayo kukhawulelwe ezigabeni ezimbalwa zemakethe, njengemboni yezimboni nezikhungo.
Izinga le-alkyl glycoside ye-shor-chain liye lathuthukiswa eminyakeni embalwa edlule futhi izinkampani eziningi okwamanje zihlinzeka nge-octyl/decyl glycosides entsha, okuhlanganisa i-BASF, i-SEPPIC, i-Akzo Nobel, i-ICI ne-Henkel.
Ekuqaleni kwawo-1980, izinkampani ezimbalwa zaqala ukwenza ama-alkyl glycosides ochungechungeni olude lwe-alkyl (dodecyl/tetradecyl, C12~C14) ukuze kuhlinzekwe ngesisetshenziswa esisha semboni yezimonyo neyokuhlanza.Bahlanganisa u-Henkel KGaA, Diisseldorf, Germany, kanye ne-Horizon, ingxenye ye-AEStaley Manufacturing Company yase-Decatur, IIlinois, USA.
Ukusebenzisa ulwazi lwe-Horizon olutholwe ngesikhathi esifanayo, kanye nolwazi luka-Henkel KGaA ocwaningweni nokuthuthukiswa e-Diisseldorf.U-Henkel usungule isitshalo sokulinga ukukhiqiza ama-alkyl polyglycosides e-Crosby, eTexas.Umthamo wokukhiqiza wesitshalo wawungu-5000 t pa, futhi uye waqhutshwa ngo-1988 no-1989. Inhloso ye-pilot-plant ukuthola amapharamitha wenqubo kanye nokwandisa ikhwalithi nokuhlakulela imakethe yalesi sici esisha.
Phakathi nenkathi esuka ku-1990 kuya ku-1992, ezinye izinkampani zamemezela intshisekelo yazo yokukhiqiza i-alkyl polyglycosides (C12-C14), okuhlanganisa ne-Chemische werke Hiils, ICI, Kao, SEPPIC.
Ngo-1992, i-Henkel yasungula imboni entsha e-USA ukukhiqiza i-Alkyl polyglucosides futhi umthamo wayo wokukhiqiza wafinyelela ku-25000t pa I-Henkel I-KGaA yaqala ukusebenza isitshalo sesibili esinamandla okukhiqiza afanayo ngo-1995. Ukwanda komthamo wokukhiqiza kwenza iziqongo ezintsha zokuxhashazwa kwe-alkyl polyglycosides.


Isikhathi sokuthumela: Sep-12-2020