I-Tetrarahydrofuran

I-Tetrarahydrofuran, i-thf efinyeziweyo, yinxalenye ye-heterocycccccccclic ye-organic. Yeyakwiklasi ye-ether, yi-aromatic quiran furan epheleleyo yemveliso ye-hydrogenation.

I-Tetrarahydrofuran yenye yezona zizomeleleyo zomeleleyo. Isetyenziswa njenge-Solver ePhezulu kwiPhepha leShemikhali kunye nokukhupha. Lulwelo olungenamibala olungenamibala kwiqondo lobushushu kwigumbi kwaye linephunga elifana ne-ether. Inyibilikiswe emanzini, ethanol, i-ether, i-acetone, ibhokisi yekhemikhali ye-Bethane kunye nezinye izinyibilikisi eziphilayo, ezaziwa ngokuba "nesinyibilikisi somhlaba". Kumaqondo obushushu egumbi kunye namanzi anokuchazwa ngokuyinxenye, ishishini le-regent engekho semthethweni liyisebenzisa le ngongoma kwi-TetraradronDronD Reater Profloter Finer. Ngenxa yotyekelo lwe-thf ukwenza iiperoxides kwisitoreji, i-antioxixidant bht yongezwa kwiimveliso zemizi-mveliso. Umxholo wokufuma ≦ 0.2%. Ineempawu zetyhefu ezisezantsi, indawo yokubila ephantsi kunye nolwelo olufanelekileyo.

Iipropathi zeekhemikhali:ulwelo olubonakalayo olungenamibala, kunye nevumba le-ether. Ixutywe namanzi, utywala, iKeto, Bedzene, e-Ester, i-ether, kunye ne-hydrocarbons.

Izicelo eziphambili:

I-1. Izinto ezingafunekiyo ze-spandex synthesing:

I-Tetrarahydrofuran ngokwayo inokuba yi-Polycondences (ngokuvula i-cullic i-repolymeration) kwi-polytetramethylene ether diol (i-ptmeg), ekwabizwa ngokuba yi-therahydrofuran homopolyl homopolyl homopolyl homopolyl homopolyl homopolyl. I-ptmeg kunye ne-toluene diisocyastate (TDI) eyenziwe ngentengo yokunxiba, ukumelana kweoyile, ukusebenza kobushushu obuphantsi, amandla aphezulu erabha ekhethekileyo; Ibhloko ye-polyeer Polyeter Pontustic ye-Elastic yalungiswa nge-dimethyl tereph kunye ne-1, 4-Butadiol. I-ptmeg ene-molerive molecular ye-2000 kunye ne-p-methylne bis (4-phenyl) diisocyanate (MDI) ukwenza i-fiberthane ye-fiber (i-spandex fiber), irabha ekhethekileyo kunye nenjongo ekhethekileyo ekhupha izixhobo ezizodwa. Olona hlobo lubalulekileyo lwe-thf yeyokuveliswa kweptmeg. Ngokweenkcukacha-manani ezimbi, malunga ne-80% ye-thlo th th isetyenziselwa ukuveliswa kwePTMEG, kwaye iPtmeg isetyenziselwa ikakhulu ekuvelisweni kwe-fiber ye-spandex.

I-2. I-Solvent enentsebenzo efanelekileyo:

I-Tetrarahydrofuran sisiseko esiqhelekileyo esisetyenziselwa ukunyibilikisa i-PVC, i-PolyvinySidene ye-phelide, i-inki ye-inki, i-Inki yokuThenga, iPhezulu kunye neBhoyinti yeFliminum inokuthi ilawule i-aluminium Ubungqingqwa bokukhanya kwaye buqaqambe. I-Solvent yeTape Couides, i-PVC yoMphezulu, ukucoca ifilimu ye-PVC, isuse i-PVC ye-PVC, i-Inkine ye-Cellophane, i-Inki yePlasitini, i-Inks, i-Inks, i-Expes, i-Exrives kunye neRhafu yoNyango yeSynthitic.

3. Isetyenziswe njengezixhobo eziluhlaza ze-ornthesic synthesis ezinje ngamayeza:

Ukuveliswa kwe-therahydrothiophene, 1.4- dichloroethane, 2.3- Xhosa, Vichrolatone, I-Byyl Latone noPyloludone. Kumzi-mveliso wamayeza, isetyenziswa kwi-synthesis ye-Coughbixin, iRifumycin, iprogesterone kunye namachiza amahomo. I-Tetrarahydrothiophenol iveliswa ngonyango lwe-hydrogen sulfide, enokusetyenziswa njenge-arhente ye-odor kwi-puel yegesi (kwaye ikwasisiseko esikhulu kwishishini lamachiza.

4. Olunye usetyenziso:

I-Chromatographic Solvent (i-gell ye-geromatography), isetyenziselwa incasa yegesi yegesi, i-acetymene yokukhuphela i-tetrareddrofura, i-Polymer yeSoftware, inkanuko yePTMEG yethu Ilizwe liyanda, kwaye imfuno yeTetrarahydrofuran ibonisa ukukhula okukhawulezayo imeko.

Ingozi:I-Tetrarahydrofuran yeklasi ye-3.1 yolwelo olunokutsha olunokutsha olunokutsha, olunokutsha, umqobo onokwenza umxube we-show, umda wokuqhuma yi-1%, kunye nokucaphukisa. Indalo yayo enokutshitshiswa kakhulu yingozi yokhuseleko. Eyona nto ixhalabisa kakhulu ukhuseleko nge-sthfs kukwenziwa kancinci kweepetroli zezinto eziphilayo ezifihlakeleyo xa zivezwa ngumoya. Ukunciphisa lo mngcipheko, i-thff ekhoyo kwezorhwebo zihlala zixhaswa nge-2, i-6-di-te-terge-terter-cres (i-BHT) ukuthintela ukuveliswa kweepetroli ze-organic. Kwangelo xesha, i-SHF akufuneki yomiswe ngenxa yokuba i-organic peroxides iya kugxilwa kwintsalela yokungasebenzi.

Amanyathelo okhuseleko emsebenzini:Umsebenzi ovaliweyo, uvelwano olupheleleyo. Abanini zithuthi kufuneka baqeqeshelwe ngokukhethekileyo kwaye bahlale ngokungqongqo kwiinkqubo zokusebenza. Kucetyiswa ukuba abaqhubi banxiba imaski yokucoca i-gesi (imaski yesiqingatha), iiglasi zokhuseleko zezokhuseleko, iimpahla ezichasene ne-anti-static, kunye neegloves zeoli. Hlala kude nomlilo, umthombo oshushu, akanakutshaya emsebenzini. Sebenzisa ukuqhuma kwenkqubo yokuqhuma kunye nezixhobo zokungena kwezixhobo. Thintela i-steam ukubaleka kwimo yomoya emsebenzini. Kulumkele ukunxibelelana nee-oxidants, acid kunye neziseko. Ireyithi yokuhamba kufuneka ilawulwe ngexesha lokugcwalisa, kwaye kufanele kubekho isixhobo sokuthintela ukuqokelelwa kwe-electrostatic. Xa uphatha, ukulayisha ukukhanya kwaye ukuthungwa kufuneka kwenziwe ukukhusela umonakalo ukupakisha kunye nezikhongozeli. Ixhotywe ngeentlobo ngeentlobo ngeentlobo kunye nenani lesixhobo somlilo kunye nezixhobo zokunyanga ezivulekileyo. Isitya esingenanto sinokuba nentsalela eyingozi.

Amanyathelo okhuseleko:Ngokwesiqhelo impahla yentengiso ine-inhibitor. Gcina kwindawo epholileyo yendawo epholileyo. Hlala kude nomlilo nobushushu. Iqondo lobushushu lendawo yokugcina izinto akufuneki libe ngaphezulu kwe-30 ℃. Iphakheji kufuneka itywinwe kwaye ingadibananga nomoya. Ifanele igcinwe ngokwahlukeneyo kwii-oxidizers, i-asidi kunye neziseko, kwaye akufuneki idityaniswe. Ukuqhushumba Sukusebenzisa izixhobo zoomatshini kunye nezixhobo ezinokuthathela ingqalelo kwi-spark. Indawo yokugcina kufuneka ixhotywe ngezixhobo zokunyanga ezingxamisekileyo kunye nezixhobo ezifanelekileyo.

Ukupakisha: I-180kg / idrum