Method for reclaiming investment casting wax compositions and th

Details Method for reclaiming investment casting wax compositions and th Method for reclaiming investment casting wax compositions and th

1998-11-05

2000-05-23

Myers, Helane

Mineral oils: processes and products

Paraffin wax; treatment or recovery

106388, C10G 7300

Patent

active

060662506

ABSTRACT:
A used investment casting wax composition containing a filler and/or a residue after a wax component is removed from the composition is dissolved or dispersed into an organic solvent. The mixture is separated into a dissolved wax fraction and a wax-containing solids fraction. The organic solvent in the dissolved wax fraction is removed to recover a wax component, while the wax component and the organic solvent in the wax-containing solids fraction are removed to recover a crude filler. The crude filler is washed with water and/or an aqueous alkaline solution to recover a high-purity filler. A reclaimed investment casting wax thus obtainable is less degraded by heat.

REFERENCES:
patent: 5006583 (1991-04-01), Argueso

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