Invention Grant
US09434673B2 Process for preparing vinylidenecarboxylic acid (ester)s by reaction of formaldehyde with alkylcarboxylic acid (ester)s
有权
通过甲醛与烷基羧酸（酯）的反应制备亚乙烯基甲酸（酯）的方法
- Patent Title: Process for preparing vinylidenecarboxylic acid (ester)s by reaction of formaldehyde with alkylcarboxylic acid (ester)s
- Patent Title (中): 通过甲醛与烷基羧酸（酯）的反应制备亚乙烯基甲酸（酯）的方法
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Application No.: US14277384Application Date: 2014-05-14
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Publication No.: US09434673B2Publication Date: 2016-09-06
- Inventor: Philipp Gruene , Cornelia Katharina Dobner , Marco Hartmann
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P
- Priority: DE102013008206 20130514
- Main IPC: B01J27/198
- IPC: B01J27/198 ; C07C51/347 ; C07C67/347 ; C07C51/353
Abstract:
Process for preparing a vinylidenecarboxylic acid or ester thereof, wherein a reaction gas comprising gaseous formaldehyde, molecular oxygen and an alkycarboxylic acid or ester thereof is brought into contact with a solid catalyst whose active composition comprises a vanadium-phosphorus oxide having an average oxidation state of vanadium of from +4.40 to +5.0 to give a product gas comprising the vinylidenecarboxylic acid or ester thereof.
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