Ukuthengisa okushisayo abahlinzeki bamakhemikhali be-DMF bacwaninga ngensimbi encibilikayo
Isicelo
Uketshezi olungenambala olubonisa ngale noma oluphuzi ngokukhanyayo olunephunga elinofishi
1. Kuyi-solvent ephilayo enhle kakhulu, esetshenziswa njenge-solvent ye-polyurethane, i-polyacrylonitrile, ne-polyvinyl chloride.Ibuye isetshenziselwe njengezinto ezingavuthiwe zokukhipha, imithi kanye nezibulala-zinambuzane.
2. Isetshenziswa njenge-reagent yokuhlaziya kanye ne-solvent ye-vinyl resin ne-acetylene
3. I-Dimethylformamide ayiyona nje into eluhlaza yamakhemikhali enemisebenzi eminingi, kodwa futhi iyincibilikisi esebenza ngezindlela eziningi.I-Dimethylformamide iyi-solvent enhle yezinhlobonhlobo zama-polymers njenge-polyethylene, i-polyvinyl chloride, i-polyacrylonitrile, i-polyamide, njll., futhi ingasetshenziselwa ukuphotha okumanzi kwemicu yokwenziwa efana ne-polyacrylonitrile fiber, kanye nokuhlanganiswa kwe-polyurethane;Isetshenziselwa ukwenza ifilimu yepulasitiki;ingasetshenziswa futhi njengesikhiphi sikapende ukususa upende;ingaphinde incibilikise ezinye izimibala-bala ezingancibiliki kakhulu, inikeze izimibalabala izici zodayi.I-Dimethylformamide isetshenziselwa ukukhishwa kwe-aromatics nokuhlukaniswa nokubuyiselwa kwe-butadiene kusuka engxenyeni ye-C4 kanye ne-isoprene kusuka engxenyeni ye-C5.Ingasetshenziswa futhi njenge-reagent ephumelelayo yokuhlukanisa izingxenye ezingezona i-hydrocarbon kupharafini..Inokukhethwa okuhle kokuncibilika kwe-isophthalic acid ne-terephthalic acid: ukuncibilika kwe-isophthalic acid ku-dimethylformamide kukhulu kune-terephthalic acid.I-Chemicalbook yenza i-solvent extraction noma i-Paial crystallization ingahlukanisa kokubili.Embonini ye-petrochemical, i-dimethylformamide ingasetshenziswa njengento emunca igesi ukuze ihlukanise futhi icwengisise igesi.Ekuphenduleni kwe-organic, i-dimethylformamide ayisetshenziswa nje kuphela njenge-solvent yokusabela, kodwa futhi iyingxenye ebalulekile ekuhlanganiseni kwe-organic.Embonini yezibulala-zinambuzane, ingasetshenziswa ukukhiqiza isibulala-zinambuzane;embonini yezemithi, ingasetshenziswa ukuhlanganisa iodosamine, doxycycline, cortisone, vitamin B6, iodoside, ququjing, pyrantel, N-formyllysar Onumaric acid, methoxy mustard, chlorambucil, nitrosourea, furfurouracil, tranexamic, violet, feges i-chlorpheniramine, njll. I-Dimethylformamide inomphumela we-catalytic ekuphenduleni kwe-hydrogenation, dehydrogenation, dehydration kanye ne-dehydrohalogenation, okunciphisa izinga lokushisa lokusabela futhi kuthuthukise ukuhlanzeka komkhiqizo.
4.Titration of non-aqueous solvents.I-solvent ye-vinyl resin ne-acetylene.Ukuzimisela kwe-Photometric.Uketshezi olumile lwe-gas chromatographic (izinga lokushisa eliphezulu lokusetshenziswa elingu-50℃, isinyibilikisi siyi-methanol), i-Chemicalbook ehlukene ukuze ihlaziye ama-hydrocarbon e-C2-C5, futhi ingahlukanisa evamile ne-isobutene ne-cis ne-trans-2-butene.Ukuhlaziywa kwezinsalela zezibulala-zinambuzane.I-Organic Synthesis.Ukuhlanganiswa kwama-peptides.Okwemboni yezithombe.
Imininingwane Esheshayo
| INTO | INKCAZO | IMIPHUMELA |
| I-Pt-Co chrominance | ≤10 | 5 |
| i-dimethylamine ppm | ≤15 | 1 |
| I-Formic acid ppm | ≤25 | 2 |
| PH:25°C 20%Isixazululo esinamanzi | 7.0-7.5 | 7.0 |
| Ukuhamba kukagesi: 25°C 20%Isixazululo esinamanzi, thina | ≤10 | 0.14 |
| Umswakama ppm | ≤500 | 100 |
| Fe ppm | ≤0.05 | 0.005 |
| I-Methanel ppm | ≤20 | 2 |
| Inhlanganisela enzima (dimethyl Acetamide) ppm | ≤500 | 39 |
| I-DMF % | ≥99.9 | 99.98 |
Iphakheji
190KG/DRUM, 80DRUMS/20FCL, 15.2MT/20'FCL, 22MT/ISO TANK
Izitifiketi
Mayelana NATHI
I-MIT-IVY INDUSTRY Co., Ltd.Ukukhiqiza Umthombo Wamakhemikhali Amahle.
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