1
Karl W Boddeker, Walter Hilgendorff: Apparatus for desalinating water by reverse osmosis. Gesellschaft fur Kernenergieverwertung in Schiffbau und Schiffahrt mbH, Walter Becker, September 19, 1978: US04115274 (44 worldwide citation)

Apparatus for desalinating water by reverse osmosis, having a series of pus discs each covered on both sides by a membrane, and compressed at their edges between respective pairs of a stack of module plates which are identical and which each consist of two mirror image halves, alternate module plate ...


2
Karl W Boddeker: Pervaporation of phenols. Bend Research, Chernoff Vilhauer McClung & Stenzel, February 21, 1989: US04806245 (19 worldwide citation)

Aqueous phenolic solutions are separated by pervaporation to yield a phenol-depleted retentate and a phenol-enriched permeate. The separation effect is enhanced by phase segregation into two immiscible phases, "phenol in water" (approximately 10% phenol), and "water in phenol" (approximately 70% phe ...


3
Axel Wenzlaff, Dieter Behling, Karl W Boddeker: Method of separating and recovering components of mixtures via pervaporization. GKSS Forschungszentrum Geesthacht, Robert W Becker & Associates, April 28, 1992: US05108549 (9 worldwide citation)

A method of separating and recovering components of a mixture having a gap in the range of miscibility and including organic compounds and water in a pervaporization process with the aid of membranes. The mixture is first separated into an organically loaded water phase and a water-saturated organic ...


4
Karl W Boddeker: Method of making semi-permeable asymmetric membranes for reverse osmosis. Gesellschaft fur Kernenergieverwertung in Schiffbau u Schiffahrt mbH, Walter Becker, May 4, 1976: US03954925 (9 worldwide citation)

A method of making semi-permeable asymmetric membranes for desalting water in conformity with the method of reverse osmosis from a cellulose acetate casing mixture to which as modifying component there is added ammonia, preferably in gaseous condition, as swelling substance. Preferably a solution of ...


5
Gisela Bengtson, Karl W Boddeker: Membrane for the separation of liquid mixtures by pervaporation. GKSS Forschungszentrum Geesthacht, Robert W Becker & Associates, October 19, 1993: US05254251 (8 worldwide citation)

A membrane for the separation of liquid mixtures by pervaporation has two surfaces, a first one representing a feed side and a second one representing a permeate side. The membrane is comprised of a swellable elastomeric polymer material and a reinforcing support embedded essentially parallel to the ...


6
Karl W Boddeker, Axel Wenzlaff: Semi-permeable asymmetrical membrance and process of producing same. Gesellschaft fur Kernenergieverwertung in Schiffbau und Schiffahrt, James E Nilles, July 20, 1982: US04340428 (6 worldwide citation)

A semi-permeable asymmetrical membrane, useful for water desalting by reve osmosis and comprising cellulose acetate polymer, is formed from a casting solution in which there is incorporated, as a swelling medium, organophilic bentonite, that is, bentonite (preferably Montmorillonite) which has been ...


7
Axel Wenzlaff, Dieter Behling, Karl W Boddeker: Method of separating and recovering components of mixtures via pervaporization. GKSS Forschungszentrum Geesthacht, Robert W Becker & Associates, April 20, 1993: US05203969 (3 worldwide citation)

A method of separating and recovering components of a mixture having a gap in the range of miscibility and having organic compounds and water in a pervaporization process with the aid of membranes. The mixture is first separated into an organically loaded water phase and a water-saturated organic ph ...