Abstract: A method of controlling an exothermic or endothermic chemical reaction is provided. The method involves measuring a temperature of a first reactant flowing at a first flow rate, contacting the first reactant with a second reactant flowing at a second flow rate to form a reaction product, measuring the temperature of the reaction product, and determining the temperature difference between the temperature of the first reactant and the temperature of the reaction product. The method can further involve adjusting the flow rate of at least one of the first reactant and the second reactant, or shutting down flow, based on the temperature difference. An apparatus to carry out the method is also provided. The method and apparatus can be useful in controlling many different reactions, including the reaction of sodium hypochlorite and ammonia to form monochloramine.
Type:
Grant
Filed:
September 24, 2013
Date of Patent:
April 25, 2017
Assignee:
Buckman Laboratories International, Inc.
Inventors:
Thomas E. McNeel, Richard A. Clark, Richard D. Lusk, Jr.
Abstract: A method for enhancing yeast growth for bioproduct production is described. A method for fermentative bioproduct production also is provided. A nutrient composition used in the methods also is described. A liquid mixture containing the nutrient composition, yeast culture (or fungi, algae, or bacteria culture), and sugars also is provided.
Type:
Application
Filed:
October 19, 2016
Publication date:
April 20, 2017
Applicant:
Buckman Laboratories International, Inc.
Abstract: Methods are described for producing sugar from sugar-containing plant material with microbiological control, which includes treating a sugar-containing plant raw material and/or a component derived therefrom, and/or a medium containing the plant raw material and/or the component, with monochloramine. Monochloramine usage in the method can reduce loss of sugar from bacterial consumptions in the processing of sugar-containing plant materials, such as sugar beets, without causing adverse effects on the sugar product, such as the brightness of white sugar.
Type:
Grant
Filed:
December 2, 2014
Date of Patent:
January 24, 2017
Assignee:
Buckman Laboratories International, Inc.
Inventors:
Eddie Van Haute, Jean Michel Chauwin, Marco Ulisse Mascia
Abstract: The compositions and methods for control of microbial growth, for example, in oil and gas field fluids. The present invention also relates to microbicides, and more particularly, to the use of biocides in gas and oil field fluids.
Type:
Grant
Filed:
July 30, 2015
Date of Patent:
November 29, 2016
Assignee:
BUCKMAN LABORATORIES INTERNATIONAL, INC.
Abstract: A method is provided for preventing, minimizing, and/or eliminating the migration of mineral oils from paper food packaging into packaged food. The method can include adding a copper-containing oxidase enzyme, such as a laccase enzyme, to a paper pulp from which the paper food packaging is to be formed. The migration of mineral oils originating from residual inks in recycled old corrugated containers and old newsprint, is particularly suppressed, including the migration of C10-C25 fractions of aromatic mineral oil hydrocarbons and of saturated mineral oil hydrocarbons.
Type:
Grant
Filed:
September 18, 2013
Date of Patent:
October 11, 2016
Assignee:
Buckman Laboratories International, Inc.
Abstract: A method of cleaning or conditioning a paper-making press felt or other substrate is described. The method includes treating the paper-making press felt or other substrate with a formulation that contains at least solketal.
Type:
Application
Filed:
November 24, 2015
Publication date:
May 26, 2016
Applicant:
Buckman Laboratories International, Inc.
Abstract: Methods to preserve starch present in pulp are provided and also methods to control calcium precipitation and/or scaling in digesters or BOD systems. The methods can be performed as part of a papermaking process. Process water containing pulp can be treated with a chloramine. Process water containing pulp with native starch can receive a double treatment with at least one biocide, such as chloramine, and at least one oxidant, such as sodium hypochlorite. The treatment can be performed in any suitable manner. The treatment can be performed at one or more stages or locations in a papermaking system. A target residual chloramine value or range can be achieved by the treatment. Packaging sheets/boards and other paper products manufactured using the methods provided exhibit superior strength and other desirable characteristics.
Type:
Grant
Filed:
June 22, 2015
Date of Patent:
May 24, 2016
Assignee:
Buckman Laboratories International, Inc.
Abstract: A method and composition is described for controlling the growth of fouling materials, such as scale, in aqueous systems using a tagged (fluorescent) polymer. The tagged polymer can be a fluorescent polymer which has at least one fluorescent monomeric unit derived from a fluorophore which has at least one terminal end comprising an olefinic group. The method of controlling the growth of at least one fouling material in an aqueous system can include the steps of adding the tagged polymer to the aqueous system to be treated, fluorometrically monitoring the concentration of the tagged polymer, and adjusting, as needed, the concentration of the tagged polymer and proportionally used water treatment compound or compounds effective to control the growth of at least one fouling material. The adjustment of pH before determination of the fluorescence signal can be employed to increase sensitivity of the fluorophore and minimize background interference.
Type:
Grant
Filed:
July 30, 2012
Date of Patent:
May 24, 2016
Assignee:
Buckman Laboratories International, Inc.
Inventors:
Thomas E. McNeel, Marilyn S. Whittemore, Richard A. Clark, Jadwiga J. Grabowicz
Abstract: A method and system for bio-oil recovery from biomass are provided which includes adding at least one separation aid to stillage that contains oil to form a treated stillage prior to centrifuging the stillage, and centrifuging the treated stillage in at least one centrifuge to separate at least a portion of the oil from the treated stillage. The separation aid can contain at least one lecithin and at least one oil and optionally at least one surfactant having an HLB value of at least 6. Treated stillage products are also provided which can contain the indicated separation aid and recovered oil.
Type:
Grant
Filed:
September 26, 2013
Date of Patent:
May 3, 2016
Assignee:
Buckman Laboratories International, Inc.
Inventors:
Donald G. Jenkins, William C. Ganus, Carlton E. Hagen
Abstract: Methods to preserve starch present in pulp are provided and also methods to control calcium precipitation and/or scaling in digesters or BOD systems. The methods can be performed as part of a papermaking process. Process water containing pulp can be treated with a chloramine. Process water containing pulp with native starch can receive a double treatment with at least one biocide, such as chloramine, and at least one oxidant, such as sodium hypochlorite. The treatment can be performed in any suitable manner. The treatment can be performed at one or more stages or locations in a papermaking system. A target residual chloramine value or range can be achieved by the treatment. Packaging sheets/boards and other paper products manufactured using the methods provided exhibit superior strength and other desirable characteristics.
Type:
Application
Filed:
June 22, 2015
Publication date:
October 8, 2015
Applicant:
BUCKMAN LABORATORIES INTERNATIONAL, INC.
Abstract: Defoamer compositions are described and the use of defoamer compositions in paper and pulp mills is described, especially for use at the brown stock washing steps in a pulp mill.
Type:
Application
Filed:
March 19, 2015
Publication date:
October 1, 2015
Applicant:
Buckman Laboratories International, Inc.
Abstract: Methods to preserve starch present in pulp are provided and also methods to control calcium precipitation and/or scaling in digesters or BOD systems. The methods can be performed as part of a papermaking process. Process water containing pulp can be treated with a chloramine. Process water containing pulp with native starch can receive a double treatment with at least one biocide, such as chloramine, and at least one oxidant, such as sodium hypochlorite. The treatment can be performed in any suitable manner. The treatment can be performed at one or more stages or locations in a papermaking system. A target residual chloramine value or range can be achieved by the treatment. Packaging sheets/boards and other paper products manufactured using the methods provided exhibit superior strength and other desirable characteristics.
Type:
Grant
Filed:
May 15, 2014
Date of Patent:
July 28, 2015
Assignee:
Buckman Laboratories International, Inc.
Abstract: The present invention provides a method of treating an aqueous system for biocide control, by adding an acidified solution that includes monoalkyldithiocarbamate salt and alkyl isothiocyanate to an aqueous system. A biocide feed system is also provided that is configured to generate a reproducible level of alkyl isothiocyanate. The method and system provide effective levels of alkyl isothiocyanate for rapid biocidal activity, along with levels of monoalkyldithiocarbamate salt which can decompose to form additional alkyl isothiocyanate and provide longer-term biocidal activity.
Type:
Grant
Filed:
September 10, 2013
Date of Patent:
July 14, 2015
Assignee:
Buckman Laboratories International, Inc.
Inventors:
Thomas E. McNeel, Richard A. Clark, William C. Ganus, Richard D. Lusk, Jr., Graciela H. Vunk, Luis A. Zugno
Abstract: Methods are described for producing sugar from sugar-containing plant material with microbiological control, which includes treating a sugar-containing plant raw material and/or a component derived therefrom, and/or a medium containing the plant raw material and/or the component, with monochloramine. Monochloramine usage in the method can reduce loss of sugar from bacterial consumptions in the processing of sugar-containing plant materials, such as sugar beets, without causing adverse effects on the sugar product, such as the brightness of white sugar.
Type:
Application
Filed:
December 2, 2014
Publication date:
June 11, 2015
Applicant:
BUCKMAN LABORATORIES INTERNATIONAL, INC.
Inventors:
Eddie Van Haute, Jean Michel Chauwin, Marco Ulisse Mascia
Abstract: A formulation useful as a creping adhesive formulation or Yankee dryer coating composition is described. Methods of creping using the formulation are also described.
Type:
Application
Filed:
December 5, 2014
Publication date:
June 11, 2015
Applicant:
Buckman Laboratories International, Inc.
Inventors:
Jian Tan, Daniel E. Glover, Rosa Covarrubias
Abstract: Methods for controlling the growth of bacteria in ethanol fermentation systems with antibiotic alternatives, which can be nonoxidizing biocides, stabilized oxidizers, or any combinations thereof, are described. As an option, a process or composition of the present invention can include one or more polycyclic antibacterial peptides. The methods can provide improvements, such as increased ethanol yields with minimal carryover of biocide into co-products of the processes.
Type:
Application
Filed:
December 30, 2014
Publication date:
April 30, 2015
Applicant:
BUCKMAN LABORATORIES INTERNATIONAL, INC.
Inventors:
Christopher L. Wiatr, Michael L. Corcoran, Thomas E. McNeel, Richard A. Clark, Rita de Cassia Bortoto Porto, David Oppong, Philip Hoekstra
Abstract: Methods for controlling the growth of bacteria in ethanol fermentation systems with antibiotic alternatives, which can be nonoxidizing biocides, stabilized oxidizers, or any combinations thereof, are described. As an option, a process or composition of the present invention can include one or more polycyclic antibacterial peptides. The methods can provide improvements, such as increased ethanol yields with minimal carryover of biocide into co-products of the processes.
Type:
Grant
Filed:
March 16, 2011
Date of Patent:
February 10, 2015
Assignee:
Buckman Laboratories International, Inc.
Inventors:
Christopher L. Wiatr, Michael L. Corcoran, Thomas E. McNeel, Richard A. Clark, Rita de Cassia Bortoto Porto, David Oppong
Abstract: Methods and systems are provided for producing market pulp which include treatment of pulp with diverse ionic compounds before pulp drying. Cationically and anionically charged compounds can be used to treat pulp before pulp drying to improve pulp dewatering performance and efficiency in the production of market pulp. Market pulp products containing the treatment compounds are also described.
Type:
Grant
Filed:
November 26, 2012
Date of Patent:
December 23, 2014
Assignee:
Buckman Laboratories International, Inc.
Inventors:
Weiping Ban, Philip M. Hoekstra, Michael R. Elsey
Abstract: An anti-corrosion composition containing at least one fatty acid ester, at least one glycol, at least one ethylene oxide/propylene oxide (EO/PO) alkoxylate, at least one polyethylene glycol ester, and at least one modified lecithin is provided. An anti-corrosion composition also is provided which contains at least one fatty acid ester, at least one glycol, at least one sorbate, and at least one modified lecithin. A method of preparing an anti-corrosion composition is also provided. At least one modified lecithin can be blended with at least one fatty acid ester, at least one glycol, at least one EO/PO alkoxylate, or at least one polyethylene glycol ester, or any combination thereof. A method of inhibiting corrosion of a metal surface including applying an anti-corrosion composition to the metal surface in an amount effective to inhibit corrosion of the metal surface is further provided.
Type:
Application
Filed:
March 10, 2014
Publication date:
September 18, 2014
Applicant:
Buckman Laboratories International, Inc.
Inventors:
Amy E. Carter, Donald G. Jenkins, Daniel Glover, Carlton E. Hagen
Abstract: The present invention provides a method of inhibiting corrosion of a metal surface with at least one alkyl sulfamic acid or salt thereof to the metal surface in an amount effective to inhibit corrosion of the metal surface. The alkyl sulfamic acid or salt thereof can be applied in any suitable manner to the metal surface, for example, flowing, coating, sponging, wiping, spraying, painting, showering, and/or misting.
Type:
Application
Filed:
March 13, 2014
Publication date:
September 18, 2014
Applicant:
BUCKMAN LABORATORIES INTERNATIONAL, INC.
Inventors:
Jesse Pokrzywinski, Marilyn Whittemore, Thomas E. McNeel