Pakalipano, penti zolembera misewu yakunja ndizochokera kumadzi kwambiri ndipo zimakula mwachangu. Zoposa 90% za penti zolembera misewu m'maiko otukuka monga United States, Germany, Spain, Sweden, ndi Finland amagwiritsa ntchito zopangira madzi. Chifukwa cha kuyambika koyambirira kwa zokutira zolembera zakunja ndi chitukuko chofulumira chaukadaulo, zokutira zolembera mumsewu wa nanometer, zokutira zolembera zamsewu zamagulu awiri, zokutira zopaka utoto zamtundu wamtundu, ndi zina zotero.
Rosin glycerol utomoni ndi mankhwala a esterification wa rosin ndi glycerol. Ndi cholimba chowonekera pambuyo pochiza vacuum.
Gawo Loyamba: Mzere Wathu Woyeretsedwa Kwambiri wa Calcium Metal Production Kaŵirikaŵiri Pachaka Chotuluka ndi pafupifupi matani 1500 pachaka ndipo kuyera kumatha kufika 99.99%
Ethylene cracking C5 kagawo kakang'ono mumlengalenga kuthamanga rectification intercepts 45-75â isoprene wolemera chigawo monga zopangira A; ethylene cracking C5 kagawo kakang'ono mumlengalenga kuthamanga rectification intercepts 25-45â isoprene wolemera chigawo monga zopangira B; Ethylene cracking C9 fraction ndi vacuum yokonzedwa pansi pa 0.08ï½0.095MPa,Petroleum Resin ndipo kachigawo kakang'ono ka 140ï½180â kamatengedwa ngati zopangira C. Zida zitatu pamwambapa A, B ndi C zakonzedwa molingana ndi kuchuluka kwa chiŵerengero cha 1:1.5ï½3.0:1.5ï½3.0 C5/C9 petroleum resin polymerization zopangira D;
C5 petroleum resin imasinthidwa kukhala C5 hydrogenated petroleum resin ndi hydrogenation pansi pa palladium bimetallic chothandizira. Chothandiziracho chimakhala ndi chonyamulira cha alumina-titania ndi zitsulo zapalladium ndi chitsulo molybdenum kapena tungsten yachitsulo yomwe imathandizidwa ndi chonyamulira chamagulu; Utomoni waPetroleum Zomwe zili ndi 0.2-0.4% kutengera kulemera kwa chothandizira;
Ndi chitukuko chofulumira chachuma cha dziko, Petroleum Resin makamaka kukula kwachangu kwa migolo itatu yamafuta, monga Sinopec, mphamvu ya ethylene yakula pang'onopang'ono, Petroleum Resin ndi C9 yochulukirapo yasweka. Momwe mungagwiritsire ntchito gawoli popanga zinthu zapansi panthaka zikupangitsa chidwi cha anthu.
