Yise kude
Abaphakathi bamayeza babhekisa kwimathiriyeli ekrwada yeekhemikhali okanye kwiimveliso zekhemikhali ezisetyenziswa kwinkqubo yokudibanisa amayeza.
Ngokutsho kweshishini, i-pharmaceutical intermediates industry, njengentsimi ebalulekileyo yoshishino lweekhemikhali ezintle, iya kuba nendawo enkulu yophuhliso kwixesha elizayo.
| Imveliso | CAS |
| N, N-Dimethyl-p-toluidine I-DMPT | 99-97-8 |
| N, N-Dimethyl-o-toluidine I-DMOT | 609-72-3 |
| 2,3-Dichlorobenzaldehyde | 6334-18-5 |
| 2′,4′-Dichloroacetophenone | 2234-16-4 |
| 2,4-Dichlorobenzyl utywala | 1777-82-8 |
| 3,4′-Dichlorodiphenyl ether | 6842-62-2 |
| 2-chloro-4-(4-chlorophenoxy)acetophenone | 119851-28-4 |
| 2,4-dichloroluene | 95-73-8 |
| o-Phenylenediamine | 95-54-5 |
| o-Toluidine OT | 95-53-4 |
| 3-Methyl-N,N-diethyl aniline | 91-67-8 |
| N,N-Diethyl aniline | 91-66-7 |
| N-Ethylaniline | 103-69-5 |
| N-Ethyl-o-toluidine | 94-68-8 |
| N, N-Dimethylaniline I-DMA | 121-69-7 |
| 2-Nafetali IBeta naphthol | 135-19-3 |
| Auramine O | 2465-27-2 |
| Ikristale yelactone yeviolet I-CVL | 1552-42-7 |
Ukusuka kwimbali yophuhliso lweshishini lamayeza laseTshayina, emva kweminyaka ephantse ibe ngama-30 yophuhliso, abalamli bamayeza baye baphuhla ukusuka kwisebe elincinane leshishini lemichiza ukuya kushishino olusakhulayo olunexabiso lemveliso yeebhiliyoni zeeyuan, kwaye ukhuphiswano lwemarike luya lusiba luqilima. .
Kuyaqondwa ukuba kwinqanaba lokuqala lophuhliso lweshishini lamayeza aphakathi, ngenxa yotyalo-mali oluncinci kunye nenqanaba eliphezulu lembuyekezo, amashishini aphakathi kwamayeza akhula njengeentyatyambo ze-bamboo emva kwemvula, ngakumbi eZhejiang, eTaizhou, eNanjing nakwezinye iindawo ezithandekayo. iimeko zokuphuhliswa kwamayeza aphakathi uphuhliso lukhawuleza ngokukodwa.
Okwangoku, njengoko utshintsho lwepateni yemarike yonyango, kunye nokuveliswa kwamachiza amatsha emarikeni kulinganiselwe, ubunzima be-pharmaceutical intermediates kushishino lophuhliso lwemveliso entsha luba lukhulu ngakumbi, imveliso yemveli iya isiba ukhuphiswano oluqatha. , i-mediated media media profits yawa ngokukhawuleza, kwaye abaphakathi bamayeza baba yinto yokucinga malunga nengxaki yendlela yokuphuhliswa kweshishini.
Ishishini likholelwa ukuba kunokwenzeka ukwenza iinzuzo zalo ezikhuphisanayo kwimiba yetekhnoloji, impembelelo, inguqu, njalo njalo, ukuze igqame kwimarike.
Ngokuphathelele iteknoloji, ibhekisela ikakhulu ekuphuculeni iteknoloji kunye neendleko zokugcina.
Kuxelwe ukuba abaphakathi bamayeza banenkqubo ende yenkqubo, amanyathelo amaninzi okusabela, isixa esikhulu se-solvent, kunye namandla amakhulu okuphucula ubugcisa.
Ngokomzekelo, ixabiso eliphantsi lezinto eziphathekayo zingasetyenziselwa endaweni yexabiso eliphezulu lezinto eziphathekayo, ezifana ne-bromine ebambeleyo ekuveliseni i-aminotaxime acid, i-ammonium thiocyanate endaweni ye-potassium thiocyanate (sodium) kwimveliso, njl.
Ukongeza, i-solvent enye ingasetyenziselwa ukutshintsha i-solvents ezahlukeneyo kwinkqubo yokuphendula, kunye notywala obuveliswa yi-hydrolysis yeemveliso ze-ester zingabuyiswa.
Kwinkalo yempembelelo, ikakhulu ukwenza iimveliso zayo zeempawu kunye nokuphucula impembelelo kwishishini.
Kuyaqondwa ukuba ngenxa yoshishino lwamayeza aseTshayina, ukhuphiswano lwe-homogenization yemveliso lunobuzaza, ukuba ishishini linokudala imveliso yalo ephezulu, liya kuba nakho ukufumana inzuzo ngakumbi kwimarike.
Ngokubhekiselele kwinguqu, ngoku, kunye neemfuno zokhuseleko lwasekhaya olusingqongileyo ziba ngqongqo, izibonelelo zityekele kumashishini anexabiso eliphezulu, kunye nokunyuka kweendleko zokukhusela indalo, utshintsho luye lwaba yingxaki ukuba amashishini aphakathi kwamayeza kufuneka acinge ngawo. Uphuhliso oluphathekayo.
Kucetyiswa ukuba amashishini aphakathi axuba amayeza andise ikhonkco lemizi-mveliso phezulu nasezantsi, kwaye adlulisele ezona mathiriyeli ikrwada azisebenzisayo kwimveliso yawo, enokunciphisa ngakumbi iindleko. Okwangoku, kwezinye izinto ezikhethekileyo eziluhlaza, inokuphepha ukulawulwa kwezixhobo eziphambili.
Ishishini lithi ukuhamba phantsi kwendlela, apho abaphakathi bamayeza bafakwe ngokuthe ngqo kwi-APIs, kunokunyusa ngakumbi ixabiso elongezelelweyo leemveliso ngelixa lithengisa ngokuthe ngqo kwiinkampani zamachiza.
Kuyafaneleka ukuba uqaphele ukuba utyalo-mali olusezantsi lukhulu, ngelixa iimfuno zeteknoloji yokuvelisa ziphezulu, kwaye kuyimfuneko ukugcina ubudlelwane obuhle kunye nabavelisi abasebenzisa i-API.
Lilonke, amashishini aphambili anokufumana inzuzo ekhuphisanayo ngakumbi.
Ukongeza, uphando kunye nophuhliso lubaluleke kakhulu kwishishini eliphakathi. Okwangoku, ishishini eliphakathi lamayeza e-China linika ingqwalasela encinci kuphando kunye nophuhliso.
Ke ngoko, kwimekobume yokuphucula rhoqo iimfuno zobugcisa, amashishini asebenzayo e-R & D anamandla e-R & D anamandla aya kuza ngaphambili, ngelixa amashishini amancinci naphakathi angenawo amandla e-R & D anokupheliswa yimarike. Kwixesha elizayo, ugxininiso loshishino luya kunyuka ngakumbi, kwaye inqanaba lophuhliso eliphakathi kunye neliphantsi liya kuphuhlisa kwinqanaba eliphezulu.
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Ixesha lokuposa: Apr-25-2021