North Carolina State University

Bioxy, Inc.

Other

Peter K Kilpatrick

Ruben Guillermo Carbonell

Nael Zaki

Jaime Mullerat

Roberto Guzman

William A Curby

David A Hazlett

George W Roberts

Juan L Torres

Nael Saki

Matthew A Jones

Anup K Singh

Johnny D Powers

Environmentally friendly solvents used to dissolve or remove residues and/or substances from substrates wherein the residue and/or substance is contacted with a Generally Recognized As Safe solvent to dissolve the residue and/or substance in the solvent followed by the extraction of the residue and/or substance from the solvent such as by contact with carbon dioxide.

Methods and compositions for removing residues and substances from substrates using environmentally friendly solvents

A method of deresinating a crude oil comprises contacting the crude oil with a carbon dioxide containing fluid, the crude oil having an initial API gravity and comprising an oil phase, resins, and asphaltenes, and wherein the carbon dioxide containing fluid enters the oil phase of the crude oil in a manner such that the resins and asphaltenes precipitate out of the crude oil such that the final API gravity of the crude oil is higher than the initial API gravity of the crude oil.

Methods of deresinating crude oils using carbon dioxide

A method of demulsifying a water-in-oil emulsion comprising an oil phase comprising asphaltenes and an aqueous phase is disclosed. The method comprises contacting a carbon dioxide containing fluid with the emulsion such that the carbon dioxide containing fluid enters the oil phase of the emulsion. The asphaltenes precipitate out of the emulsion and the emulsion destabilizes.

Methods of demulsifying emulsions using carbon dioxide

A method of separating a Fischer-Tropsch catalyst from the output slurry of a Fischer-Tropsch bubble column reactor, where the slurry comprises Fischer-Tropsch catalyst particles and liquid hydrocarbon product is disclosed. The method comprises contacting a compressed hydrocarbon solvent (e.g., a supercritical hydrocarbon solvent, or liquid hydrocarbon solvent which may be at near supercritical conditions) with the output slurry at a temperature and pressure where the liquid hydrocarbon product is soluble in the solvent to form a concentrated slurry phase containing the catalyst particles, and an enriched solvent phase containing liquid hydrocarbon product. This contacting step is then followed by the step of separating the concentrated slurry from the enriched solvent. Apparatus for carrying out the method of the invention is also disclosed.

Methods and apparatus for separating Fischer-Tropsch catalysts from liquid hydrocarbon product

Methods and apparatus for separating Fischer-Tropsch catalysts from

The invention relates to improved methods of raising and treating food animals, which employ pH-buffered, redox-stabilized compositions comprising halide and oxyhalide ions. The compositions can be administered to food animals to effect enhanced food utilization, lower mortality, decreased nitrogen excretion, decreased dependence on antibiotics and vaccines, overall enhanced health and immunostimulation in the animals.

Therapeutic, production and immunostimulatory uses of biocidal

The invention relates to methods employing pH-buffered, redox-stabilized compositions comprising halide and oxyhalide ions. The compositions can be administered to food animals to effect enhanced food utilization, lower mortality, decreased nitrogen excretion, decreased dependence on antibiotics and vaccines, overall enhanced health and immunostimulation in the animals. Additionally, the compositions can be used to treat food animal carcasses to reduce foodborne pathogens and spoilage organisms.

Competitive and sandwich-type immunodiagnostic assays can be configured by use of liposomes carrying detectible markers (e.g., fluorophores) or catalysts thereof (e.g., enzymes) on the outer liposome surface. The liposome also contains at least one antigen or antibody allowing it to bind to a complementary, immobilized antibody or antigen on a support.

Immunodiagnostic assay using liposomes carrying labels thereof on outer

Surfactants bound to a ligand and dissolved in a single phase aqueous solution form a precipitate when a multivalent antiligand is added to the solution. This invention can be used in an affinity precipitation test procedure (and kit) for detecting the presence or absence of a multivalent antiligand in a sample suspected of containing the multivalent antiligand, in an affinity precipitation inhibition test procedure (and kit) for detecting the presence or absence of a target ligand in a sample suspected of containing the target ligand, and in a process for separating a multivalent antiligand from a crude material containing the multivalent antiligand.

Precipitation of multivalent antiligands with affinity surfactants

A chromatography apparatus incorporating an improved means for connecting the ligand to the solid support is disclosed. The apparatus comprises a chamber containing a solid support. The solid support is a hydrophobic support. The apparatus includes chromatography surfactants bonded to the solid support. The surfactants comprise a polar group, a hydrophobic functional group substituted on the polar group, and a chromatographic functional group substituted on the polar group. The hydrophobic group is hydrophobically adsorbed to the solid support so that the chromatographic functional group is bound to the solid support and available for binding to compounds which selectively bind thereto. Compositions for and methods of making the foregoing are disclosed. The chromatographic functional group is a ligand for affinity chromatography, an ionogenic group for ion exchange chromatography, or a hydrophobic group for hydrophobic chromatography. Hydrophobic silica particles are preferably used as the solid support, with hydrophobic polymers more preferred. Polyalkoxy groups are preferably used as the polar groups. Covering surfactants are preferably adsorbed to the solid support to reduce non-specific binding thereto.

Chromatography apparatus

A method of extracting a compound specifically bound by a ligand from a crude solution containing the compound is disclosed. The method comprises providing a multiplicity of liposomes having the ligand bound to the surface thereof, and mixing the liposomes with the crude solution so that the ligand binds to the compound to be extracted. The liposomes are then separated from the crude solution and the compound to be extracted recovered from the liposomes.

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Raleigh, NC, United States of America

Peter K Kilpatrick