Navigation

0 Hits

  • Previous / Next

You are using Science Of Synthesis as a Guest.
Please login to access the full content or check if you have access via
48.5.1.1.3.3 Variation 3: Using Phillips Catalysts

DOI: 10.1055/sos-SD-048-00388

Kaminsky, W.Science of Synthesis, (200948701.

To prepare the Phillips catalyst, either a silicaalumina complex (87:13)[‌4‌,‌42‌] or a silica support (typically 400600 m2·g1)[‌43‌] is impregnated with aqueous chromium(VI) oxide. First the solvent water is removed, and then the bound water is also removed, by fluidizing the catalyst powder in dry air at 400800°C to produce an active, alkyl-free catalyst containing 15% (determined by weight) chromium oxides.

Me eeeeeeeeeeee eeeee 888°M [eee eeeeeee eeeee eee eeeeeeee(MM) eeeee] eee Meeeeeee eeeeeeee ee eeeeeeee eeeeee eeeeee eeeeeeeeeeeeee. Me eeeeeee eeeeee ee eeeeee eeeeeeeeeeee (ee ee 888°M), ee eeeee eeeeeeeeeeee ee eeeeeeee(MM) eeeee eeee eeeeee eee eeeeeee eeeee, eee eeeeeeee ee eeeeeee ee eeeeee eeeeeee eeeeeeeeeeee.

Mee eeeeeeeee ee eee eeeeeeee eee eeee eeeeeeeeeeee. Mee eeeeeee eeeeeeee eeeeeee eeeeeeee eeeeeeee eeeee eee e eeeeee eeeeeee ee 888e8·e8 eee eeeee 8% eeeeeeee(MM) eee eeee eeeeeeeeee ee ee 88Å.[‌88‌] Meee eeeeeeeeeee ee eee eeeeeeeeee ee eeeeeee eeeeee eeeeeee eeeeeee ee eeeeee eeeee eeeeeeeeeee, eeeee eee eee ee eee eeeeeeee ee eeeeeeeeee 8 eee 8 (Meeeee 8).

Meeeee 8 Meeeeeee Meeeeeeeee ee eee Meeeeeee Meeeeeee Meeeeeee[‌88‌]

Me eee eeee eeeeeeeeee eeee eeeeeee 8.8 eee 8.8ee% ee eee eeeee eeeeeeee eeeee eeeeee eeeeeee.[‌88‌] Mee eeeeeee ee eee eeeeeeee ee eee eeeeee eeeee ee eeee ee eeeeeeeee: eeeeeeee eeee eeeeeeee MM, MMM, MM, eee M eeee eeee eeeeeeee,[‌88‌] eee eee eeeeee eeeeeee ee eeeeeeeee ee eeeeee eeeeeeeeeeeee, ee eee eeeee eeeeee ee eeeeeeee eeeee ee eee eeeeee eeeee ee ee eeeee. Meee eee eeeeeeeeee eeeeeeee eeeeeee eeeeee ee eee eeeeeee eee eeeeeee eeee eeeeee eeeeeeeeeeee eeeeeeeeeee eeeeeeee(MM) eeeeeee eeeeeeeee.[‌88‌]

Mee Meeeeeee eeeeeeee eeeeeeeeeeee eeeeeeeee eee eeeeeeeeeeeeee ee eeeeee ee eeee-eeeeeee eeeeeeeeee. Me eeeeee eeeeeeeeee ee eeeee eeeeeeeeeeeee, eeeeeeeeee eeee eeeee eeeeeee ee ee α-eeeeee (eeeeeee eeeeeee eeeeeee ee eee-8-eee) eee ee eeeeeeeeeee.

M eeeeeee ee eee Meeeeeee eeeeeeee ee eeee eee eeeeeeeee eeeeee ee eee eeeeeeeeee eeeeeeee eeeeee ee eeeeeeeeee ee eee eeeeeeee ee eeeeeeee ee eee eeeeeee. Meeeeeeee ee eeeee-eeeeeeeee-eeeeee eeeeeeeeee eee, eeeeeee, ee eeeeeeee ee eeeeeee eee eeeeeeeeeeeeee eeeeeeeeee eeeeeeeeeee.

References


Cookie-Einstellungen