Tetrahydrofuran/CAS:109-99-9

Tetrahydrofuran, nke a kpọrọ THF, bụ ihe mejupụtara ihe ndị dị ndụ na-adịghị mma. Ọ bụ nke sitere na klaasị ether, ọ bụ ihe mejupụtara ihe na-esi ísì ụtọ nke furan. Tetrahydrofuran bụ otu n'ime ihe ndị na-eme ka polar sie ike, nke a na-eji dị ka ihe mgbaze polarity dị n'etiti na mmeghachi omume kemịkalụ na mwepụta. Ọ bụ mmiri na-enweghị agba na nke na-agbanwe agbanwe n'ọnọdụ okpomọkụ ụlọ, yana isi yiri nke ether. A na-agbaze ya na ọtụtụ ihe mgbaze organic dị ka mmiri, ethanol, ether, acetone, na benzene, a na-akpọ ya "ihe mgbaze zuru ụwa ọnụ". N'ọnọdụ okpomọkụ ụlọ, a na-agwakọta ya na mmiri, ụfọdụ ndị na-ere ahịa ihe mgbochi iwu na-eji nke a eme ihe iji nweta nnukwu uru site na ịgwakọta ihe na-eme ka tetrahydrofuran na mmiri. N'ihi na THF na-emepụta peroxides n'oge nchekwa, ngwaahịa ụlọ ọrụ na-agbakwụnyekarị ihe na-egbochi BHT. Ọdịnaya mmiri ≤ 0.2%. O nwere njirimara nke obere nsí, obere ebe esi mmiri, na ezigbo mmiri mmiri.

Ojiji

1.spandex synthesis symmetry nke ihe ndị e ji emepụta ihe tetrahydrofuran n'onwe ya nwere ike ịbụ polycondensation (site na cation initiated ring-opening polymerization) ka ọ bụrụ polytetramethylene ether glycol (PTMEG), nke a makwaara dị ka tetrahydrofuran homopolymerization ether. PTMEG na toluene diisocyanate (TDI) nke e ji ihe ndị na-eguzogide abrasion, mmanụ na-eguzogide, obere okpomọkụ, ike dị elu nke rọba pụrụ iche mee; yana dimethyl terephthalate na 1,4-butanediol nke e ji ihe polyether polyester elastomer mee. Oke molekul nke PTT bụ 2,000. Oke molekul nke PTMEG 2000 na p-methylene bis (4-phenyl) diisocyanate (MDI) nke ejiri eriri polyurethane elastic (spandex, eriri SPANDEX) mee, rọba pụrụ iche na ụfọdụ ihe mkpuchi pụrụ iche. A na-eji THF eme ihe kachasị mkpa maka mmepụta PTMEG, dịka ọnụ ọgụgụ siri ike si kwuo, a na-eji ihe karịrị 80% nke THF ụwa eme ihe maka mmepụta PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG. A na-ejikarị PTMEG, na PTMEG eme ihe maka mmepụta nke eriri spandex elastic.
2. ihe mgbaze arụmọrụ dị mma nke tetrahydrofuran bụ ihe mgbaze dị mma a na-ejikarị eme ihe, ọkachasị maka ịgbaze PVC, polyvinylidene chloride na butylaniline, nke a na-ejikarị eme ihe dị ka ihe mgbaze maka mkpuchi elu, mkpuchi mgbochi corrosive, ink mbipụta, teepu na mkpuchi ihe nkiri maka electro-Chemicalbook Aluminum Plating Liquid nwere ike ijikwa ọkpụrụkpụ nke aluminom na Ịdị mma n'enweghị usoro. Mkpuchi teepu magnetik, mkpuchi elu PVC, nhicha ihe na-eme PVC, iwepụ ihe nkiri PVC, mkpuchi cellophane, ink mbipụta plastik, mkpuchi polyurethane thermoplastic, ihe mgbaze maka ihe mgbaze, nke a na-ejikarị eme ihe na mkpuchi elu, mkpuchi nchebe, ink, ihe mwepụ na ihe ndị na-agwọ elu maka akpụkpọ anụ artificial.
3. A na-eji ya eme ihe dịka ihe eji emepụta ihe ndị sitere n'okike dịka ọgwụ eji emepụta tetrahydrothiophene, 1.4 - dichloroethane, 2.3 A na-eji ya emepụta tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, valerolactone, butyrolactone na pyrrolidone. N'ime ụlọ ọrụ ọgwụ, a na-eji ya emepụta ụkwara, Rifamycin, progesterone na ụfọdụ ọgwụ homonụ. Tetrahydrothiophenol na-emepụta site na ọgwụgwọ hydrogen sulfide, nke enwere ike iji dị ka ihe na-esi ísì ụtọ na gas mmanụ (ihe mgbakwunye njirimara), ọ bụkwa ihe mgbaze bụ isi na ụlọ ọrụ ọgwụ.
4. Ojiji Ndị Ọzọ: Ihe mgbaze Chromatographic (gel permeation chromatography), nke a na-eji eme ihe maka ekpomeekpo gas eke, ihe mgbaze maka mwepụta acetylene, na ihe na-eme ka ọkụ sie ike maka ihe polymer. Site na ojiji sara mbara nke tetrahydrofuran, ọkachasị mmụba ngwa ngwa nke ụlọ ọrụ spandex nke China n'afọ ndị na-adịbeghị anya, na-eme ka ọchịchọ China maka PTMEG na-abawanye, ọchịchọ a na-enweta maka tetrahydrofuran bụkwa usoro na-eto ngwa ngwa.

Nkwakọ ngwaahịa na Mbupu

180KG/Drum ma ọ bụ dịka ihe ndị ahịa chọrọ.
Enwere ike ibuga ya site na oke osimiri na ikuku

Debe ma chekwaa

Ndụ nchekwa: ọnwa 24 site na ụbọchị emepụtara ya na ngwugwu mbụ e meghebeghị emepe echekwara n'ebe dị jụụ na kpọrọ nkụ nke na-anaghị anwụ kpọmkwem, mmiri.
Ụlọ nkwakọba ihe ikuku, Ọkụ dị ala, Nkewapụrụ na ihe ndị na-eme ka oxidants, asịd.