Loj Gap Hauv Kev Tshuaj Intermediates

Tuam Tshoj tau dhau los ua lub ntiaj teb loj tshaj plaws ntawm kev tsim tshuaj tua kabmob thiab tshuaj tua kabmob. Kev tsim tawm ntawm cov tshuaj aspirin, paracetamol, thiab analgin ntau tshaj 10,000 tons. Cov qoob loo ntawm phenacetin, aminopyrine thiab antipyrine ntau dhau 1000. Tuj. Tam sim no, cov khoom tawm ntawm cov tshuaj tiv thaiv kabmob thiab tshuaj tua kabmob uas muaj tshuaj nyob hauv Suav teb tau loj hlob sai heev, thiab nws yuav tsum muaj qhov txiaj ntsig ntawm kwv yees li 8% yav tom ntej. Kev tsim cov tshuaj nruab nrab rau kev txhim kho cov tshuaj tiv thaiv kev ua kom tsis taus thiab tshuaj pleev cov tshuaj loog yog qhov loj, thiab muaj ntau lub chaw tsim khoom. Nrog rau kev loj hlob ntawm cov tshuaj tiv thaiv kev ua kom tsis taus thiab ua kom loog, nws cov tshuaj nruab nrab kuj tau ua tiav txoj kev loj hlob ntau.

Hauv 2003, kev noj haus hauv tsev ntawm paracetamol nce sai heev, thiab kev xa tawm kuj pom kev loj hlob sai. Qhov xa tawm tau yog 28,163 tons, thiab cov khoom lag luam tawm ib xyoos ib zaug tau nce txog 1 zaug. Txawm hais tias tus nqi xa khoom lag luam tawm qeeb nyob rau thawj ib nrab xyoo 2004, nws tseem muaj ntau. Lub ntim xa tawm ntawm paracetamol thaum lub Ib Hlis - Tsib Hlis 2004 yog 12,501 tons, me ntsis siab dua tib lub sijhawm ntawm xyoo tas los. Para-aminophenol yog ib qho tseem ceeb nruab nrab rau kev sib sau ntawm paracetamol thiab tab tom loj hlob sai heev. Kev tsim p-aminophenol txhua xyoo hauv Suav teb yog 32,000 tons. Nws kwv yees tias los ntawm 2005, kev tsim cov tshuaj paracetamol hauv tsev yuav ncav cuag ntau dua 50,000 tons, thiab kev lag luam kws tshuaj yuav haus 45,000 tons p-aminophenol. Tsis tas li ntawd, nws tau thov rau hauv lwm daim teb. Tag nrho cov thov rau phenol yog li ntawm 50,000 tons, kev ua lag luam yog qhov loj, thiab kev txhim kho thiab siv kev cia siab yog qhov dav.