ukudla okudlela endlini
Abaphakathi kwezemithi babhekisela kwezinye izinto zamakhemikhali ezingavuthiwe noma imikhiqizo yamakhemikhali esetshenziswa enqubweni yokwenziwa kwemithi.
Ngokusho kwemboni, imboni ephakathi kwemithi, njengenkambu ebalulekile yemboni yamakhemikhali emihle, izoba nendawo enkulu yokuthuthukiswa esikhathini esizayo.
| Umkhiqizo | I-CAS |
| I-N,N-Dimethyl-p-toluidine I-DMPT | 99-97-8 |
| I-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 utshwala | 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 |
| I-N-Ethyl-o-toluidine | 94-68-8 |
| N,N-Dimethylaniline I-DMA | 121-69-7 |
| 2-Naphthol I-Beta naphthol | 135-19-3 |
| U-Auramine O | 2465-27-2 |
| I-crystal violet lactone I-CVL | 1552-42-7 |
Kusukela emlandweni wokuthuthukiswa kwemboni yaseShayina ephakathi kwezemithi, ngemva kweminyaka ecishe ibe ngu-30 yentuthuko, abaxhumanisi bezemithi baye bathuthuka besuka egatsheni elincane lemboni yamakhemikhali baba imboni esafufusa enenani eliphumayo lezigidigidi zama-yuan, futhi ukuncintisana kwemakethe kuya ngokuya kushuba. .
Kuyaqondakala ukuthi ekuqaleni kokuthuthukiswa kwemboni yemithi ephakathi, ngenxa yokutshalwa kwezimali okuncane kanye nenani eliphezulu lembuyiselo, amabhizinisi aphakathi kwezemithi akhula njengamahlumela e-bamboo ngemva kwemvula, ikakhulukazi eZhejiang, Taizhou, Nanjing nakwezinye izindawo ezivumayo. izimo ukuthuthukiswa intermediate imithi ukuthuthukiswa ngokushesha ikakhulukazi.
Njengamanje, njengoba uguquko lwephethini yemakethe yezokwelapha, kanye nokukhiqizwa kwemithi emisha emakethe kulinganiselwe, ubunzima bemboni yezokwelapha i-intermediate ukuthuthukiswa komkhiqizo omusha bukhulu kakhulu, umkhiqizo wendabuko uya ngokuya uba ukuncintisana okunamandla. , inzuzo yemboni yemithi ephakathi kwehle ngokushesha, futhi abaphakathi kwezemithi baba kufanele bacabange ngenkinga yokuthi ukuthuthukiswa kwebhizinisi kanjani.
Imboni ikholelwa ukuthi kungenzeka izenzele ezayo izinzuzo zokuncintisana ezicini zobuchwepheshe, umthelela, uguquko nokunye, ukuze igqame emakethe.
Mayelana nobuchwepheshe, ikakhulukazi ibhekisela ekuthuthukiseni ubuchwepheshe kanye nezindleko zokulondoloza.
Kubikwa ukuthi abaxhumanisi bemithi banomzila omude wenqubo, izinyathelo eziningi zokusabela, inani elikhulu le-solvent, namandla amakhulu okuthuthukiswa kobuchwepheshe.
Isibonelo, izinto zokusetshenziswa ezinenani eliphansi zingasetshenziswa esikhundleni sezinto zokusetshenziswa zenani eliphakeme, njenge-bromine esikhundleni sokukhiqiza i-aminotaxime acid, i-ammonium thiocyanate esikhundleni se-potassium thiocyanate (sodium) ekukhiqizeni, njll.
Ngaphezu kwalokho, i-solvent eyodwa ingasetshenziswa futhi ukufaka esikhundleni se-solvents ehlukene enqubweni yokusabela, futhi utshwala obukhiqizwa yi-hydrolysis yemikhiqizo ye-ester bungabuyiselwa.
Esicini sethonya, ikakhulukazi ukwakha imikhiqizo yayo yesici nokuthuthukisa ithonya embonini.
Kuyaqondakala ukuthi ngenxa yemboni yaseShayina ephakathi kwemithi, ukuncintisana komkhiqizo we-homogenization kubi kakhulu, uma ibhizinisi lingakha imikhiqizo yalo ephakeme, lizokwazi ukuthatha izinzuzo eziningi emakethe.
Mayelana noguquko, njengamanje, njengoba izidingo zokuvikelwa kwemvelo yasekhaya ziba nzima, izinsiza zithambekele ezimbonini ezinenani eliphakeme, futhi ngokwanda kwezindleko zokuvikela imvelo, uguquko seluphenduke inkinga amabhizinisi aphakathi kwezemithi okufanele acabange ngayo ukuthuthuka okungashabalali.
Kuphakanyiswa ukuthi amabhizinisi aphakathi kwemithi andise uchungechunge lwezimboni phezulu naphansi komfula, futhi adlulisele izinto zokusetshenziswa eziyinhloko ezizisebenzisayo ekukhiqizeni kwawo, okungase kunciphise izindleko. Phakathi naleso sikhathi, kwezinye izinto zokusetshenziswa ezikhethekile, ingagwema ukuzimela kwezinto ezisetshenziswayo ezibalulekile.
Imboni ithi ukuhamba phansi ngomgwaqo, lapho abaxhumanisi bemithi befakwa ngokuqondile kuma-API, kungaqhubeka nokwandisa inani elengeziwe lemikhiqizo ngenkathi kuyithengisa ngqo ezinkampanini ezithaka imithi.
Kubalulekile ukuqaphela ukuthi ukutshalwa kwezimali okwehlayo kukhulu, kuyilapho izimfuneko zobuchwepheshe bokukhiqiza ziphezulu, futhi kuyadingeka ukugcina ubudlelwano obuhle nabakhiqizi abasebenzisa i-API.
Sekukonke, amabhizinisi aphambili angathola izinzuzo zokuncintisana ezengeziwe.
Ngaphezu kwalokho, ucwaningo nentuthuko ibaluleke kakhulu embonini ephakathi. Njengamanje, imboni ephakathi kwemithi e-China ngokuvamile ayinaki ucwaningo nentuthuko.
Ngakho-ke, endaweni yokuthuthukisa njalo izidingo zobuchwepheshe, amabhizinisi asebenza kahle e-R & D anamandla e-R & D aqinile azovela, kuyilapho amabhizinisi amancane naphakathi nendawo angenayo i-R & D angase aqedwe yimakethe. Ngokuzayo, ukugxilwa kwemboni kuzokwanda futhi, futhi isigaba sokuthuthukiswa esimaphakathi nesiphansi sizokhula siye esigabeni esiphezulu.
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Isikhathi sokuthumela: Apr-25-2021