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Class 204/540 - Biological material prepared, recovered, or treated (e.g., urine, etc.)


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Process in which biological material is prepared, recovered,
No. of patents: 16
Last issue date: 05/15/2007


NumberTitleIssue Date
7217349Method of separating multivalent ions and lactate ions from a fermentation broth
The invention pertains to a method of separating multivalent ions and lactate ions from a fermentation broth comprising a multivalent ion lactate salt by using an electrodialysis or electrolysis apparatus, comprising the steps of introducing the broth wherein the mu...
05/15/2007
6428666Electrokinetic concentration of charged molecules
A method for separating and concentrating charged species from uncharged or neutral species regardless of size differential. The method uses reversible electric field induced retention of charged species, that can include molecules and molecular aggregate...
08/06/2002
6110342Process for production of amino acid hydrochloride and caustic via electrodialysis water splitting
The invention uses a stack of three compartment electrodialysis cells in a process for the production amino acid hydrochloride and an alkali. The electrodialysis cell contains bipolar, cation and anion membranes which are arranged to form acid, base and s...
08/29/2000
5814197Electrodialysis including filled cell electrodialysis (electrodeionization)
Improved electrodialysis (ED) stacks are disclosed having one or more components selected from the group: a) cation exchange membranes having ion exchange groups predominantly sulfonic acid groups and a minor amount of weakly acidic and/or weakly basic gr...
09/29/1998
5746920Process for purifying dairy wastewater
A process and apparatus for purifying lactose-containing wastewater. The process comprises first treating the wastewater with base. The treated wastewater is then introduced into a fermenter where the lactose present in the wastewater is fermented to form...
05/05/1998
5725749Process for the separation of lactulose
The invention relates to a process for the separation of lactulose from a mixture of lactulose and lactose in the presence of a weak acid capable of reversibly forming a complex with lactulose, by using an electrodialysis equipment including an anode and ...
03/10/1998
5340449Apparatus for electroelution
This invention involves the elution of macromolecules such as proteins, deoxyribonucleic acid(DNA), ribonucleic acid(RNA) from solid phase matrix such as polyacrylamide, agarose and membranes such as polyvinyl difluoride (PVDF) in an electric field. The e...
08/23/1994
4661224Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier
Processes and apparatuses are described for recovering components dispersed in an aqueous solution comprising contacting said solution as a first solution with an electrically conducting barrier, diaphragm or membrane which has a high affinity for at leas...
04/28/1987
4584075Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier
Processes and apparatuses are described for recovering components dispersed in an aqueous solution comprising contacting said solution as a first solution with an electrically conducting barrier, diaphragm or membrane which has a high affinity for at leas...
04/22/1986
4582580Process for the separation of immunoglobulins from colostrum
The present invention relates to a process for the separation of the immunoglobulins present in colostrum, wherein a milk of colostrum or a serum of colostrum is fractionated by liquid electrophoresis, the immunoglobulin-enriched fraction is recovered and...
04/15/1986
4576696Process for the preparation of a biologically active extract
A mammal organ, for example the thymus, or a cell culture is comminuted to form a slurry, accompanied by cell disintegration, high molecular weight substances are precipitated by heating and removed by centrifuging, and residual substances of molecular we...
03/18/1986
4559119Installation and process for the preparation of acid caseinates
A milk supply pipe issues into a container. By means of a pipe (4), the container content is fed to an electrodialyzer. The electrodialyzed product is partly returned to the container....
12/17/1985
4351710Fractionation of protein mixtures
This invention relates to the separation of complex protein mixtures by lowering (desalting) or by raising (salting-out) their electrolytic (ionic) concentration by electrodialysis followed by chilling, pH adjustment, filtration, and/or centrifugation and...
09/28/1982
4322275Fractionation of protein mixtures
This invention relates to the separation of complex protein mixtures by lowering (desalting) or by raising (salting-out) their electrolytic (ionic) concentration by electrodialysis followed by chilling, pH adjustment, filtration, and/or centrifugation and...
03/30/1982
4123342Ultrafiltration and electrodialysis method and apparatus
A combination electrodialysis method and apparatus comprising ultrafiltration membrane cell pairs interposed between a cation-selective membrane and an ion-nonselective membrane. The solution to be treated is fed to one side of the ultrafiltration membran...
10/31/1978
3972791Fractionation of proteins by electrical means
A process for the fractionation of liquid solutions of protein mixtures which includes the steps of subjecting such solutions to electrodialysis in the pH range 4.8 to 6, until desalting of the solution commences, said electrodialysis being conducted at t...
08/03/1976
 
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