Deposition methods utilizing carbon dioxide separation systems

This invention relates to cleaning and separation methods useful in cleaning substrates, particularly metal substrates, and useful for polymerization processes, coatings, extractions, and the manufacture and treatment of particles. A separation method includes (a) providing a heterogeneous separatio...

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Bibliographic Details
Main Authors Romack, Timothy J, McClain, James B, Stewart, Gina M, Givens, Ramone D
Format Patent
LanguageEnglish
Published 02.07.2002
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Summary:This invention relates to cleaning and separation methods useful in cleaning substrates, particularly metal substrates, and useful for polymerization processes, coatings, extractions, and the manufacture and treatment of particles. A separation method includes (a) providing a heterogeneous separation system, the heterogeneous cleaning system comprising COin a first phase and an oil in a separate second phase; (b) entraining a material to be separated in the second phase; (c) wholly or partially solubilizing the second phase in the first phase to produce a separation system in which said material to be separated is insoluble; and then (d) separating the material from the system. The separating step is preferably followed by the step of (e) recovering at least a portion of the oil. The system is useful in a variety of applications, including cleaning (particularly metal cleaning), polymerization, extraction, coating, and particle formation and treatment.