The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2018
Filed:
Mar. 06, 2013
Applicant:
Granit S.a., Orbe, CH;
Inventors:
Assignee:
GRT GROUP SA, Orbe, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 31/02 (2006.01); B01J 31/24 (2006.01); C01B 3/22 (2006.01); B01J 23/46 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
C01B 3/22 (2013.01); B01J 23/462 (2013.01); B01J 31/0255 (2013.01); B01J 31/0267 (2013.01); B01J 31/24 (2013.01); B01J 37/0209 (2013.01); B01J 2531/821 (2013.01); C01B 2203/0277 (2013.01); C01B 2203/1047 (2013.01); C01B 2203/1064 (2013.01); C01B 2203/1211 (2013.01);
Abstract
A method for producing A hydrogen gas from formic acid, characterized in that at least one heterogeneous catalyst is used to transform the formic acid into hydrogen gas. The at least one heterogeneous catalyst contains heterogenized ruthenium. According to a first aspect of the invention, the at least one heterogeneous catalyst contains at least one hydrophilic phosphine ligand which is m-TPPTS (meta-trisulfonated triphenylphosphine). The at least one heterogeneous catalyst is preferably obtained by mixing an aqueous solution of RuClwith hydrophilic phosphine, firstly activated by carrying out a homogeneous reaction with formic acid and by adding at least one solid structure.