Patents by Inventor Stéphane Chabot
Stéphane Chabot has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11964234Abstract: There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with an acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal; a sequestering agent; and H2O2 and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.Type: GrantFiled: May 13, 2022Date of Patent: April 23, 2024Assignee: EXP SERVICES INC.Inventors: Martin Beaulieu, Stéphane Chabot, Yves Charest
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Publication number: 20220323903Abstract: There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with an acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal; a sequestering agent; and H2O2 and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.Type: ApplicationFiled: May 13, 2022Publication date: October 13, 2022Applicant: EXP SERVICES INC.Inventors: Martin BEAULIEU, Stéphane CHABOT, Yves CHAREST
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Publication number: 20190160425Abstract: There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with a basic aqueous oxidizing composition having a pH of about 9.0 to about 10.0 and comprising H2O2 at a concentration of about 20 mg/L to about 700 mg/L, and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.Type: ApplicationFiled: February 1, 2019Publication date: May 30, 2019Inventors: Martin BEAULIEU, Stéphane CHABOT, Yves CHAREST
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Publication number: 20180318759Abstract: There are provided processes for removing H2S from a gas. The processes comprise contacting the gas with an aqueous composition comprising at least one calcium compound, thereby obtaining CaS and a H2S lean treated gas stream, while maintaining the pH at about 9.5 to about 13.0; and contacting the CaS with an aqueous oxidant solution, converting the CaS into at least one of CaSO3 and CaSO4, while maintaining the pH at about 9.5 to about 13.0.Type: ApplicationFiled: October 23, 2015Publication date: November 8, 2018Inventors: Stéphane CHABOT, Yves CHAREST, Martin BEAULIEU, Abderrahman MAHFOUD
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Patent number: 10118125Abstract: There are provided processes for removing H2S from a gas. The processes comprise contacting the gas with an aqueous composition comprising at least one calcium compound, thereby obtaining CaS and a H2S lean treated gas stream, while maintaining the pH at about 9.5 to about 13.0; and contacting the CaS with an aqueous oxidant solution, converting the CaS into at least one of CaSO3 and CaSO4, while maintaining the pH at about 9.5 to about 13.0.Type: GrantFiled: October 23, 2015Date of Patent: November 6, 2018Assignee: EXP SERVICES INC.Inventors: Stéphane Chabot, Yves Charest, Martin Beaulieu, Abderrahman Mahfoud
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Publication number: 20170056821Abstract: There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with an acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal; a sequestering agent; and H2O2 and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.Type: ApplicationFiled: November 9, 2016Publication date: March 2, 2017Inventors: Martin BEAULIEU, Stéphane CHABOT, Yves CHAREST
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Patent number: 9574122Abstract: There is provided a method for reducing the content of at least one water soluble volatile organic compound in a gas. The method comprises contacting the gas with an aqueous acidic oxidizing composition comprising H2O2 and a metal catalyst, and submitting the at least one water soluble volatile organic compound and the aqueous acidic oxidizing composition to an UV radiation.Type: GrantFiled: April 14, 2010Date of Patent: February 21, 2017Assignees: Uniboard Canada Inc., EXP Services Inc.Inventors: Pierre-André Gignac, Martin Beaulieu, Yves Charest, Stéphane Chabot, Abderrahman Mahfoud, Jules Lemay
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Patent number: 9522206Abstract: There are provided methods for treating a fluid having an undesirable odor. The methods comprise contacting the fluid with a H2O2 basic aqueous oxidizing composition and/or with a H2O2 acidic aqueous oxidizing composition. Optionally, the fluid can be further treated by contacting it with activated carbon and/or by submitting the fluid and the composition to UV radiation when they are contacting together.Type: GrantFiled: August 26, 2015Date of Patent: December 20, 2016Assignee: EXP SERVICES INC.Inventors: Martin Beaulieu, Stéphane Chabot, Yves Charest
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Patent number: 9234100Abstract: There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.Type: GrantFiled: February 17, 2010Date of Patent: January 12, 2016Assignees: Uniboard Canada Inc., EXP Services Inc.Inventors: Andre Verville, Yves Charest, Martin Beaulieu, Stephane Chabot, Richard Lepine
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Publication number: 20150359917Abstract: There are provided methods for treating a fluid having an undesirable odor. The methods comprise contacting the fluid with a H2O2 basic aqueous oxidizing composition and/or with a H2O2 acidic aqueous oxidizing composition. Optionally, the fluid can be further treated by contacting it with activated carbon and/or by submitting the fluid and the composition to UV radiation when they are contacting together.Type: ApplicationFiled: August 26, 2015Publication date: December 17, 2015Inventors: Martin BEAULIEU, Stéphane CHABOT, Yves CHAREST
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Patent number: 8747539Abstract: There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.Type: GrantFiled: May 3, 2012Date of Patent: June 10, 2014Assignees: Uniboard Canada Inc., EXP Services Inc.Inventors: Andre Verville, Yves Charest, Martin Beaulieu, Stephane Chabot, Richard Lepine
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Publication number: 20120217680Abstract: There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.Type: ApplicationFiled: May 3, 2012Publication date: August 30, 2012Applicants: EXP SERVICES INC., UNIBOARD CANADA INC.Inventors: Andre Verville, Yves Charest, Martin Beaulieu, Stephane Chabot, Richard Lepine
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Publication number: 20110189049Abstract: There are provided methods for treating a fluid having an undesirable odor. The methods comprise contacting the fluid with a H2O2 basic aqueous oxidizing composition and/or with a H2O2 acidic aqueous oxidizing composition. Optionally, the fluid can be further treated by contacting it with activated carbon and/or by submitting the fluid and the composition to UV radiation when they are contacting together.Type: ApplicationFiled: May 9, 2008Publication date: August 4, 2011Inventors: Martin Beaulieu, Stéphane Chabot, Yves Charest
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Patent number: 7906097Abstract: There is provided a process for preparing aluminium chloride comprising leaching aluminium dross residues with H2SO4 so as to obtain a leachate; and hydrochlorinating the leachate so as to obtain aluminium chloride. If desired, aluminium chloride can then be converted into alumina.Type: GrantFiled: November 16, 2007Date of Patent: March 15, 2011Assignee: Groupe Conseil Procd Inc.Inventors: Martin Beaulieu, Stéphane Chabot, Yves Charest, Jean-François Savard
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Publication number: 20100258428Abstract: There is provided a method for reducing the content of at least one water soluble volatile organic compound in a gas. The method comprises contacting the gas with an aqueous acidic oxidizing composition comprising H2O2 and a metal catalyst, and submitting the at least one water soluble volatile organic compound and the aqueous acidic oxidizing composition to an UV radiation.Type: ApplicationFiled: April 14, 2010Publication date: October 14, 2010Inventors: Pierre-André GIGNAC, Martin BEAULIEU, Yves CHAREST, Stéphane CHABOT, Abderrahman MAHFOUD, Jules LEMAY
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Publication number: 20100239876Abstract: There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.Type: ApplicationFiled: February 17, 2010Publication date: September 23, 2010Inventors: Andre VERVILLE, Yves CHAREST, Martin BEAULIEU, Stephane CHABOT, Richard LEPINE
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Patent number: 7651676Abstract: There is provided a process for preparing aluminium chloride comprising: leaching aluminium dross residues with HCl so as to obtain a mixture comprising a solid and a liquid; and hydrochlorinating the liquid obtained from the mixture, so as to form a precipitate comprising aluminium chloride. Such a sequence can also be used for preparing alumina. In such a case, the process can further comprise the step of converting the so-obtained aluminium chloride into alumina. In the processes previously defined, the solid so-obtained can also be leached with H2SO4, thereby generating a leachate. The leachate can also eventually be hydrochlorinated so as to increase the yield of the desired product obtained i.e. alumina or aluminium chloride.Type: GrantFiled: November 23, 2007Date of Patent: January 26, 2010Assignee: Groupe Conseil Procd Inc.Inventors: Martin Beaulieu, Stéphane Chabot, Yves Charest, Jean-François Savard
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Publication number: 20090022640Abstract: There is provided a process for preparing aluminium chloride comprising leaching aluminium dross residues with H2SO4 so as to obtain a leachate; and hydrochlorinating the leachate so as to obtain aluminium chloride. If desired, aluminium chloride can then be converted into alumina.Type: ApplicationFiled: November 16, 2007Publication date: January 22, 2009Applicant: GROUPE CONSEIL PROCD, INC.Inventors: Martin BEAULIEU, Stephane CHABOT, Yves CHAREST, Jean-Francois SAVARD
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Publication number: 20080159935Abstract: There is provided a process for preparing aluminium chloride comprising: leaching aluminium dross residues with HCl so as to obtain a mixture comprising a solid and a liquid; and hydrochlorinating the liquid obtained from the mixture, so as to form a precipitate comprising aluminium chloride. Such a sequence can also be used for preparing alumina. In such a case, the process can further comprise the step of converting the so-obtained aluminium chloride into alumina. In the processes previously defined, the solid so-obtained can also be leached with H2SO4, thereby generating a leachate. The leachate can also eventually be hydrochlorinated so as to increase the yield of the desired product obtained i.e. alumina or aluminium chloride.Type: ApplicationFiled: November 23, 2007Publication date: July 3, 2008Applicant: GROUPE CONSEIL PROCD, INC.Inventors: Martin BEAULIEU, Stephane CHABOT, Yves CHAREST, Jean-Francois SAVARD
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Patent number: 7304187Abstract: There is provided a process for reducing formaldehyde content of a gas comprising the step of contacting the gas with an aqueous oxidizing solution comprising at least one cation, a base, and H2O2 so as to oxidize at least a part of the formaldehyde contained in the gas into formic acid. Thus, a gas having a reduced content in formaldehyde as compared to the gas before the process and a solution comprising formic acid, are so-obtained. Such a process can be particularly useful for treating various types of gases containing formaldehyde.Type: GrantFiled: October 7, 2005Date of Patent: December 4, 2007Assignee: Groupe Conseil ProCD Inc.Inventors: Stéphane Chabot, Martin Beaulieu, Yves Charest, Dominique Le Bel