| 摘要 |
Chelated organometallic cpds. are adsorbed by contact withAl2O3 beads obtd. by rotation agglomeration of Al2O3 powder, and having at least 0.10 cc/g of pores of dia. above 100 A, at least 0.05 cc/g of pores of dia. above 1 micron, and having a dia. not above 4 mm. Also claimed are Al2O3 beads contg. a chelated organometallic cpd.. Pref. the specific surface of the beads is at least 100 m<2>/g. The beads contain 15-150 mmols/100 g of Al2O3 of an alkali(ne earth) cpd., and are formed by agglomeration of Al2O3 powder in a grooved appts. or a rotating drum. The chelated organometallic cpd. is based on a metal of Gps. IVB, VB, VIB, VIIB, VIII, IB or IIB, esp. Ti, Zr or Cu, and the chelate cpds. are acetylacetone, 2-ethyl-hexane 1,3-diol or di-2-ethyl-hexyl phosphate. |
