Okusinziira ku nkola ya catalytic, tekinologiya akozesebwa mu nsi yonna mu kukola emipiira amakampuni agakola emipiira asobola okwawulwamu enkola ttaano enkulu: nickel, cobalt, lithium, titanium, ne rare earth (neodymium).Titanium, nickel ne cobalt system ye mainstream mainstream trend, rare earthre system in the development stage for the development stage for the nickenie is our country in the 1960 s the successful development of highly active nickel catalysts, respectively in 1965 in jinzhou, lanzhou, began to industrialized production, butadiene rubber production of new technological achievements in 1985, special-class award of national scientific and technological progress, after half a century of several generations efforts, China's nickel production technology and nickel butadiene product quality in the world advanced level.
Ebifaananyi by’enkola ya nickel catalytic system:
1. Enkola ya nickel catalytic system ye nkola ya multicomponent system. omugerageranyo gw’eddagala, engeri y’okuliisa n’engeri y’okukaddiwa ey’ebirungo ebiziyiza (catalysts) tebikosa nkola ya nkola ya katalitika yokka, naye era ekosa obuzito bwa molekyu ya polimeeri.
2, nickel catalyst system stability, ebbugumu ly’okukola polimeeri, okutuukagana n’olugero olugazi, ebbugumu ly’ensengekera waggulu wa 120℃, ensengekera ekyakyali terikola, erina okuziyiza ebbugumu okulungi.
3. Enkola ya nickel catalytic erina directivity ennungi era tekosebwa nnyo bungi bwa catalyst n'obungi bwa monomer.
4. Enkola ya nickel catalyzed yaleeta omuwendo omunene ogw’okutambuza enjegere ya butadiene mu kiseera ky’enkola y’okukola polimeeri, ekivaako okukomya enjegere.
Ebifaananyi by’okukola polimeeri (polymerization characteristics) eby’enkola ya rare earth catalytic system:
1. saturated hydrocarbon hexane ekozesebwa nga ekizimbulukusa, ekiyamba okukuuma obutonde;
2. Omuwendo gw'okukyusa monomer omungi, ne gutuuka n'okutuuka ku 100%;
3. Si kyangu kukola cross-linking reaction n'okukola gel.