Tuam Tshoj xav tau ntau tshaj 2,000 yam khoom siv raw thiab cov khoom nruab nrab txhawb kev lag luam tshuaj txhua xyoo, nrog rau kev thov ntau dua 2.5 lab tons. Tom qab ntau tshaj 30 xyoo ntawm txoj kev loj hlob, cov tshuaj raw cov ntaub ntawv thiab intermediates yuav tsum tau rau Tuam Tshoj tus kws tshuaj ntau lawm yuav yeej matched, thiab tsuas yog ib feem me me yuav tsum tau imported. Tsis tas li ntawd, vim Tuam Tshoj cov peev txheej ntau thiab cov khoom siv qis qis, ntau cov khoom nruab nrab tau raug xa tawm ntau ntau. Yog li, dab tsi yog txoj hauv kev txhim kho hauv kev lag luam tshuaj intermediates hauv Suav teb?
Qhov kev thov nce ntxiv
Tom qab ze li ntawm 50 xyoo ntawm txoj kev loj hlob, Tuam Tshoj tus -lactam tshuaj tua kab mob tau tsim ib tug tiav lawm system. Xyoo 2012, yuav luag tag nrho -lactam tshuaj tua kab mob (tshwj tsis yog rau ntau yam thaum lub sij hawm patent) tuaj yeem tsim nyob rau hauv Suav teb, thiab tus nqi qis heev, cov zis ntawm penicillin nyob rau hauv lub ntiaj teb no, thiab ib tug loj tus naj npawb ntawm exports yog nkag mus rau lub thoob ntiaj teb ua lag luam; Cov tshuaj tua kab mob cephalosporin tuaj yeem ua tus kheej - txaus, thiab tseem tuaj yeem siv zog rau qee qhov kev xa tawm.
Xyoo 2012, tag nrho cov intermediates sib phim nrog -lactam tshuaj tua kab mob hauv Suav teb tuaj yeem tsim los ntawm peb tus kheej, tshwj tsis yog rau semi- hluavtaws tshuaj tua kab mob niam txiv nucleus 7-ACA thiab 7-ADCA, uas yuav tsum tau xa tawm ib nrab, tag nrho cov kab sib txuas intermediates tuaj yeem tsim thiab xa tawm ntau.
Noj phenylacetic acid, lub ntsiab txhawb nruab nrab ntawm -lactam tshuaj tua kab mob, ua piv txwv, muaj ze li ntawm 30 manufacturers ntawm phenylacetic acid nyob rau hauv Suav teb, nrog rau tag nrho cov muaj peev xwm txhua xyoo txog 20,000 tons. Txawm li cas los xij, feem ntau ntawm cov tuam txhab me me, nrog cov khoom lag luam loj tshaj plaws txhua xyoo ntawm 2,000 tons, thiab lwm tus tsim tau ntau pua tons hauv ib xyoos. Hauv xyoo 2003, tag nrho cov kev thov hauv tsev rau phenylacetic acid yog kwv yees li 14,000 tons, thiab cov qauv siv yog: penicillin G suav txog 85%, lwm yam tshuaj suav txog 4%, cov tshuaj tsw qab suav txog 7%, tshuaj tua kab thiab lwm thaj chaw suav txog 4%.
Nrog rau kev txhim kho cov txuj lom hauv tsev, tshuaj, tshuaj tua kab thiab lwm yam lag luam, qhov kev thov rau phenylacetic acid yuav nce ntxiv. Nws kwv yees tias los ntawm 2005, Tuam Tshoj txoj kev lag luam kws tshuaj yuav haus txog 14,000 tons ntawm phenylacetic acid, 500 tons ntawm kev lag luam tshuaj tua kab, thiab txog 2,000 tons ntawm txuj lom kev lag luam. Ua ke nrog kev noj hauv lwm qhov chaw, tag nrho cov kev thov hauv tsev rau phenylacetic acid yuav tsum ncav cuag 18,000 tons hauv 2005.