Invention Grant
- Patent Title: Catalysts for the conversion of hydroxypropionic acid or its derivatives to acrylic acid or its derivatives
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Application No.: US13760444Application Date: 2013-02-06
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Publication No.: US10106484B2Publication Date: 2018-10-23
- Inventor: Juan Estaban Velasquez , Janette Villalobos Lingoes , Jane Ellen Godlewski , Dimitris Ioannis Collias , Fred C. Wireko , Marc Andrew Mamak , Nancy Lee Redman-Furey
- Applicant: The Procter & Gamble Company
- Applicant Address: US OH Cincinnati
- Assignee: The Procter & Gamble Company
- Current Assignee: The Procter & Gamble Company
- Current Assignee Address: US OH Cincinnati
- Agent Brent M. Peebles
- Main IPC: B01J27/25
- IPC: B01J27/25 ; C07C51/48 ; B01J27/18 ; B01J27/187 ; C07C51/377 ; C07C51/09 ; C07C57/04 ; A61F13/534 ; C08F2/10 ; B01J27/16 ; B01J27/185 ; B01J27/186 ; B01J27/188 ; B01J27/195 ; B01J27/198 ; B01J35/02 ; B01J37/00 ; B01J37/04 ; B01J37/08 ; C07C51/44 ; A61F13/53
Abstract:
Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed condensed phosphates. Methods of preparing the catalysts are also provided.
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