Static bed wax decolorization process

Details Static bed wax decolorization process Static bed wax decolorization process

1986-10-24

1987-10-20

Metz, Andrew

Mineral oils: processes and products

Paraffin wax; treatment or recovery

With sorption agents

208299, 208310R, C10G 7342

Patent

active

047012544

ABSTRACT:
A process is disclosed for removing color or color inducing impurities to petroleum derived wax by means of an adsorbent comprising a refined inorganic oxide having a pore distribution such that at least 60% of the pores possess a size of less than 350 Angstroms. Preferably, at least 90% of the pores possess a size of less than 350 Angstroms. The preferred inorganic oxide is an aluminum oxide and preferably has a surface area between 200 square meters per gram and 500 square meters per gram. A process is also disclosed for wax finishing utilizing multiple beds of refined alumina which may be operated in a swing bed fashion to intimately regenerate the refined alumina absorbent by such procedural steps as naphtha soaking, steam treating and heating in air.

REFERENCES:
patent: 3908002 (1975-09-01), Holler
patent: 4003851 (1977-01-01), Ebel et al.
patent: 4301037 (1981-11-01), Kim et al.
patent: 4379134 (1983-04-01), Weber et al.

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