Catalyst pretreatment method

Details Catalyst pretreatment method Catalyst pretreatment method

B - Operations, Transporting

01

J

252/1.F, 260/678

B01J 37/06 (2006.01) C07C 1/04 (2006.01)

Patent

CA 2021434

ABSTRACT OF THE DISCLOSURE An improved pretreatment method for preparing powdered catalysts with well controlled particle size distribution that are free of sub 1 micron particles comprising dispersion of the powdered catalyst in liquid comprised of either a) a hydrocarbon containing low levels of a surfactant or, b) a surfactant contain- ing polar protic solvent, followed by decantation of the suspended finely divided sub 1 micron particles and repeating said sequence until essentially 90% of the sub 1 micron particles have been removed.

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