Patents by Inventor Hannah L. Crampton
Hannah L. Crampton 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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Publication number: 20180319934Abstract: Produce diglycidyl-capped polyalkylene glycol by (a) providing epihalohydrin, a polyalkylene glycol that contains and ethylene oxide component and a Lewis acid; (b) coupling the epihalohydrin to the polyalkylene glycol using the Lewis acid as a catalyst to produce a coupling product; (c) stripping 1,4-dioxane from the coupling product; and (d) epoxidation of the coupling product by addition of a base to form diglycidyl-capped polyalkylene glycol in an organic phase.Type: ApplicationFiled: October 19, 2016Publication date: November 8, 2018Applicant: Dow Global Technologies LLCInventors: Troy E. Knight, Thomas C. Young, Gerald W. Dare, Hannah L. Crampton, Bruce D. Hook, Pasquale Sirignano, Daviele Vinci
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Patent number: 9498762Abstract: Embodiments of the present disclosure are directed to a system and a process for producing an oxirane. For the various embodiments, the system and process of the present disclosure includes: a reaction vessel having a reaction mixture of an olefin, a peroxide compound, a solvent mixture with an alcohol and a non-reactive co-solvent, a solid phase, and reaction products of the reaction mixture, where the reaction products include an oxirane; a separation vessel coupled to the reaction vessel, where an effluent of the reaction mixture and reaction products from the reaction vessel separates in the separation vessel into a liquid aqueous phase and a liquid organic phase; and an extraction vessel coupled to an outlet of the separation vessel, where the liquid aqueous phase taken from the outlet of the separation vessel mixes with an extraction solvent to extract oxirane from the aqueous phase.Type: GrantFiled: February 3, 2012Date of Patent: November 22, 2016Assignee: BLUE CUBE IP LLCInventors: Philip J. Carlberg, Hannah L. Crampton, Anna Forlin, Esteban Pedernera, Cesar E. Meza
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Publication number: 20160251327Abstract: Embodiments of the present disclosure include a process for removing iron ions from an organic stream by contacting the organic stream with an ion exchange resin prior to contacting the organic stream with a peroxide solution including a stabilizer.Type: ApplicationFiled: May 13, 2016Publication date: September 1, 2016Inventors: Philip J. Carlberg, Hannah L. Crampton, Harlan R. Goltz, Joe J. Longoria
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Patent number: 8980780Abstract: A process for regenerating a titanium silicalite catalyst by contacting the fouled titanium silicalite catalyst with a regeneration solution that includes at least one oxidizing agent.Type: GrantFiled: February 3, 2012Date of Patent: March 17, 2015Assignee: Dow Global Technologies LLCInventors: Hannah L. Crampton, Philip J. Carlberg, Cesar E. Meza
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Patent number: 8981132Abstract: A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly.Type: GrantFiled: April 14, 2014Date of Patent: March 17, 2015Assignee: Dow Global Technologies LLCInventor: Hannah L. Crampton
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Patent number: 8927744Abstract: Embodiments of the present disclosure provide processes and systems for the epoxidation of an olefin using a fixed bed reactor. The fixed bed reactor is maintained at a temperature from 0 to 40 degrees Celsius. The processes and systems regulate a superficial liquid velocity of a non-homogeneous reaction mixture and recycled portion of effluent of the fixed bed reactor.Type: GrantFiled: November 2, 2012Date of Patent: January 6, 2015Assignee: Dow Global Technologies LLCInventors: Cesar E. Meza, Philip J. Carlberg, Hannah L. Crampton
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Publication number: 20140309441Abstract: Embodiments of the present disclosure provide processes and systems for the epoxidation of an olefin using a fixed bed reactor. The fixed bed reactor is maintained at a temperature from 0 to 40 degrees Celsius. The processes and systems regulate a superficial liquid velocity of a non-homogeneous reaction mixture and recycled portion of effluent of the fixed bed reactor.Type: ApplicationFiled: November 2, 2012Publication date: October 16, 2014Applicant: Dow Global Technologies LLCInventors: Cesar E. Meza, Philip J. Carlberg, Hannah L. Crampton
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Publication number: 20140243538Abstract: A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly.Type: ApplicationFiled: April 14, 2014Publication date: August 28, 2014Applicant: Dow Global Technologies, LLCInventor: Hannah L. Crampton
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Patent number: 8754246Abstract: Embodiments of the present disclosure include a process for separating phases of a mixture including a liquid aqueous phase, a liquid organic phase, and a solid phase and extracting at least an oxirane from the liquid aqueous phase with an extraction solvent.Type: GrantFiled: February 3, 2012Date of Patent: June 17, 2014Assignee: Dow Global Technologies, LLCInventors: Philip J. Carlberg, Hannah L. Crampton, Joe J. Longoria
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Patent number: 8735612Abstract: A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly.Type: GrantFiled: March 22, 2011Date of Patent: May 27, 2014Assignee: Dow Global Technologies, Inc.Inventor: Hannah L. Crampton
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Patent number: 8703983Abstract: A process for preparing propylene oxide by epoxidizing propylene with an oxidant in the presence of a pretreated catalyst; wherein the catalyst comprises an activated titanium silicalite with MFI structure (TS-1) catalyst; and wherein the catalyst has been activated by pretreatment with methanol to form the pretreated catalyst. The pretreated TS-1 catalyst may be used in the epoxidizing propylene reaction with no additional methanol added; and the pretreated catalyst has equivalent activity to TS-1 catalyst used with large excesses of methanol.Type: GrantFiled: March 22, 2011Date of Patent: April 22, 2014Assignee: Dow Global Technologies, LLCInventor: Hannah L. Crampton
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Patent number: 8697895Abstract: A multiple liquid phase composition and process for preparing an oxirane product, such as epichlorohydrin, including a reaction mixture of: (a) at least one olefin, wherein the olefin is selected from one of (i) an aliphatic olefin or substituted aliphatic olefin, with the proviso that the aliphatic olefin is not propylene, (ii) a cycloaliphatic olefin, (iii) an aromatic olefin, (iv) a cycloaromatic olefin, and (v) mixtures thereof; (b) at least one peroxide compound, (c) at least one catalyst, and (d) and a solvent mixture; wherein the solvent mixture comprises at least (i) at least one alcohol or a combination of alcohols, and (ii) at least one non-reactive co-solvent; wherein the solvents are mixed at a predetermined concentration; wherein the non-reactive co-solvent has a different boiling point than the oxirane product; and wherein the oxirane product partitions into a high affinity solvent during the reaction.Type: GrantFiled: August 4, 2010Date of Patent: April 15, 2014Assignee: DOW Global Technologies, LLCInventors: Hannah L. Crampton, Philip J. Carlberg, David H. West, Bruce D. Hook, William W. Fan, Anna Forlin
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Publication number: 20130309152Abstract: Embodiments of the present disclosure include a process for regenerating a titanium silicalite catalyst by contacting the fouled titanium silicalite catalyst with a regeneration solution that includes at least one oxidizing agent.Type: ApplicationFiled: February 3, 2012Publication date: November 21, 2013Applicant: Dow Global Technologies LLCInventors: Hannah L. Crampton, Philip J. Carlberg, Cesar E. Meza
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Publication number: 20130310582Abstract: Embodiments of the present disclosure include a process for removing iron ions from an organic stream by contacting the organic stream with an ion exchange resin prior to contacting the organic stream with a peroxide solution including a stabilizer.Type: ApplicationFiled: February 3, 2012Publication date: November 21, 2013Applicant: Dow Global Technologies LLCInventors: Philip J. Carlberg, Hannah L. Crampton, Harlan R. Goltz, Joe J. Longoria
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Publication number: 20130310583Abstract: Embodiments of the present disclosure include a process for separating phases of a mixture including a liquid aqueous phase, a liquid organic phase, and a solid phase and extracting at least an oxirane from the liquid aqueous phase with an extraction solvent.Type: ApplicationFiled: February 3, 2012Publication date: November 21, 2013Applicant: Dow Global Technologies LLCInventors: Philip J. Carlberg, Hannah L. Crampton, Joe J. Longoria
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Publication number: 20130302216Abstract: Embodiments of the present disclosure are directed to a system and a process for producing an oxirane. For the various embodiments, the system and process of the present disclosure includes: a reaction vessel having a reaction mixture of an olefin, a peroxide compound, a solvent mixture with an alcohol and a non-reactive co-solvent, a solid phase, and reaction products of the reaction mixture, where the reaction products include an oxirane; a separation vessel coupled to the reaction vessel, where an effluent of the reaction mixture and reaction products from the reaction vessel separates in the separation vessel into a liquid aqueous phase and a liquid organic phase; and an extraction vessel coupled to an outlet of the separation vessel, where the liquid aqueous phase taken from the outlet of the separation vessel mixes with an extraction solvent to extract oxirane from the aqueous phase.Type: ApplicationFiled: February 3, 2012Publication date: November 14, 2013Applicant: Dow Global Technologies LLCInventors: Philip J. Carlberg, Hannah L. Crampton, Anna Forlin, Esteban Pedernera, Cesar E. Meza
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Patent number: 8524926Abstract: The present invention provides one or more embodiments of a process for the epoxidation of an olefin. For the embodiments, the process includes reacting the olefin, with the proviso that the olefin is not propylene, with a hydrogen peroxide solution at a predetermined pH in the presence of a catalyst and a solvent at a predetermined reaction temperature. The pH of the hydrogen peroxide solution is adjusted to the predetermined pH by contacting the hydrogen peroxide solution with a supported base to remove acidic species from the hydrogen peroxide solution.Type: GrantFiled: November 12, 2010Date of Patent: September 3, 2013Assignee: Dow Global Technologies LLCInventor: Hannah L. Crampton
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Publication number: 20130018196Abstract: A process for preparing propylene oxide by epoxidizing propylene with an oxidant in the presence of a pretreated catalyst; wherein the catalyst comprises an activated titanium silicalite with MFI structure (TS-1) catalyst; and wherein the catalyst has been activated by pretreatment with methanol to form the pretreated catalyst. The pretreated TS-1 catalyst may be used in the epoxidizing propylene reaction with no additional methanol added; and the pretreated catalyst has equivalent activity to TS-1 catalyst used with large excesses of methanol.Type: ApplicationFiled: March 22, 2011Publication date: January 17, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventor: Hannah L. Crampton
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Publication number: 20130012731Abstract: A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly.Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventor: Hannah L. Crampton
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Publication number: 20120316353Abstract: The present invention provides one or more embodiments of a process for the epoxidation of an olefin. For the embodiments, the process includes reacting the olefin, with the proviso that the olefin is not propylene, with a hydrogen peroxide solution at a predetermined pH in the presence of a catalyst and a solvent at a predetermined reaction temperature. The pH of the hydrogen peroxide solution is adjusted to the predetermined pH by contacting the hydrogen peroxide solution with a supported base to remove acidic species from the hydrogen peroxide solution.Type: ApplicationFiled: November 12, 2010Publication date: December 13, 2012Inventor: Hannah L. Crampton