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US 2006/0219276 A1Published application
Improved method to separate and recover oil and plastic from plastic contaminated with oil
AssigneeHoneywell Federal Manufacturing & Technologies, LLC
InventorsGeorge Bohnert, Thomas Hand, Gary DeLaurentiis
Life of this patent
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Abstract
A method for removing contaminants from synthetic resin material containers using a first organic solvent system and a second carbon dioxide system. The organic solvent is utilized for removing the contaminants from the synthetic resin material and the carbon dioxide is used to separate any residual organic solvent from the synthetic resin material.
Claims35
A system for recycling resin, comprising:
- one or more solvent wash vessels to expose the resin particles to a solvent, the solvent contacting the resin particles in the one or more solvent wash vessels to substantially remove contaminants on the resin particles;
- a separator to separate the solvent from the resin particles after removal from the one or more solvent wash vessels;
- and
- a solvent removing element to expose the resin particles to a solvent removing agent to substantially remove any residual solvent remaining on the resin particles after separation.
1 more element
Dependencies are inferred from the claim text.