skip to main content

Title: Chemical reactions in reverse micelle systems

This invention is directed to conducting chemical reactions in reverse micelle or microemulsion systems comprising a substantially discontinuous phase including a polar fluid, typically an aqueous fluid, and a microemulsion promoter, typically a surfactant, for facilitating the formation of reverse micelles in the system. The system further includes a substantially continuous phase including a non-polar or low-polarity fluid material which is a gas under standard temperature and pressure and has a critical density, and which is generally a water-insoluble fluid in a near critical or supercritical state. Thus, the microemulsion system is maintained at a pressure and temperature such that the density of the non-polar or low-polarity fluid exceeds the critical density thereof. The method of carrying out chemical reactions generally comprises forming a first reverse micelle system including an aqueous fluid including reverse micelles in a water-insoluble fluid in the supercritical state. Then, a first reactant is introduced into the first reverse micelle system, and a chemical reaction is carried out with the first reactant to form a reaction product. In general, the first reactant can be incorporated into, and the product formed in, the reverse micelles. A second reactant can also be incorporated in the first reverse micellemore » system which is capable of reacting with the first reactant to form a product.« less
Authors:
 [1] ;  [2] ;  [2] ;  [2]
  1. (Kennewick, WA)
  2. (Richland, WA)
Publication Date:
OSTI Identifier:
868895
Report Number(s):
US 5238671
US patent application 07/274,558
DOE Contract Number:
2511006937
Resource Type:
Patent
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA; Department of the Army
Country of Publication:
United States
Language:
English
Subject:
chemical; reactions; reverse; micelle; systems; directed; conducting; chemical; reactions; reverse; micelle; microemulsion; systems; comprising; substantially; discontinuous; phase; including; polar; fluid; typically; aqueous; fluid; microemulsion; promoter; typically; surfactant; facilitating; formation; reverse; micelles; substantially; continuous; phase; including; non-polar; low-polarity; fluid; material; gas; standard; temperature; pressure; critical; density; water-insoluble; fluid; near; critical; supercritical; microemulsion; maintained; pressure; temperature; density; non-polar; low-polarity; fluid; exceeds; critical; density; method; carrying; chemical; reactions; comprises; forming; reverse; micelle; including; aqueous; fluid; including; reverse; micelles; water-insoluble; fluid; supercritical; reactant; introduced; reverse; micelle; chemical; reaction; carried; reactant; form; reaction; product; reactant; incorporated; product; formed; reverse; micelles; reactant; incorporated; reverse; micelle; capable; reacting; reactant; form; product; standard temperature; fluid material; low-polarity fluid; low-polarity fluid; systems comprising; polar fluid; comprises forming; chemical reaction; chemical reaction; chemical reaction; chemical reaction; reaction product; continuous phase; continuous phase; reverse micelle; reverse micelle; reverse micelle; reverse micelle; reverse micelle; reverse micelle; reverse micelle; reverse micelle; chemical reactions; chemical reactions; chemical reactions; critical density; critical density; phase including; phase including; substantially continuous; near critical; product formed; microemulsion systems; micelle systems; aqueous fluid; aqueous fluid; conducting chemical /423/516/