A process for preparing formic acid by hydrogenation of carbon dioxide in the presence of a tertiary amine (I) and a catalyst at a pressure of from 0.2 to 30 MPa abs and a temperature of from 20 to 200° C., wherein the catalyst is a heterogeneous catalyst comprising gold.
ABUSE DETERRENT AND ANTI-DOSE DUMPING PHARMACEUTICAL SALTS USEFUL FOR THE TREATMENT OF ATTENTION DEFICIT/HYPERACTIVITY DISORDER
申请人:King Clifford Riley
公开号:US20120028960A1
公开(公告)日:2012-02-02
A pharmaceutical composition comprising a drug substance consisting essentially of a pharmaceutically acceptable organic acid addition salt of an amine containing pharmaceutically active compound wherein the amine containing pharmaceutical active compound is selected from the group consisting of racemic or single isomer ritalinic acid or phenethylamine derivatives and the drug substance has a physical form selected from amorphous and polymorphic.
PROCESS FOR PREPARING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN
申请人:Schaub Thomas
公开号:US20120157711A1
公开(公告)日:2012-06-21
The present invention relates to a process for preparing formic acid by reacting carbon dioxide (
1
) with hydrogen (
2
) in a hydrogenation reactor (I) in the presence of
a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table,
a tertiary amine comprising at least 12 carbon atoms per molecule and
a polar solvent comprising one or more monoalcohols selected from among methanol, ethanol, propanols and butanols,
to form formic acid/amine adducts as intermediates which are subsequently thermally dissociated,
where a tertiary amine having a boiling point which is at least 5° C. higher than that of formic acid is used and
a reaction mixture comprising the polar solvent, the formic acid/amine adducts, the tertiary amine and the catalyst is formed in the reaction in the hydrogenation reactor (I) and is discharged from the reactor as output (
3
).
PROCESS FOR PREPARING FORMIC ACID BY REACTION OF CARBON DIOXIDE WITH HYDROGEN
申请人:Schaub Thomas
公开号:US20110319658A1
公开(公告)日:2011-12-29
A process for preparing formic acid by reaction of carbon dioxide (
1
) with hydrogen (
2
) in a hydrogenation reactor (I) in the presence of
a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table,
a tertiary amine comprising at least 12 carbon atoms per molecule and
a polar solvent comprising one or more monoalcohols selected from among methanol, ethanol, propanols and butanols and also water,
to form formic acid/amine adducts as intermediates which are subsequently thermally dissociated, with work-up of the output (
3
) from the hydrogenation reactor (I) in a plurality of process steps, where
a tertiary amine-comprising stream (
13
) from the work-up is used as selective solvent for the catalyst, is proposed.
Process for Preparing Formic Acid by Reaction of Carbon Dioxide with Hydrogen
申请人:Schaub Thomas
公开号:US20120022290A1
公开(公告)日:2012-01-26
A process for preparing formic acid by reaction of carbon dioxide (
1
) with hydrogen (
2
) in a hydrogenation reactor (I) in the presence of
a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table,
a tertiary amine comprising at least 12 carbon atoms per molecule and
a polar solvent comprising one or more monoalcohols selected from among methanol, ethanol, propanols and butanols,
to form formic acid/amine adducts as intermediates which are subsequently thermally dissociated, where the work-up of the output (
3
) from the hydrogenation reactor (I) is carried out by addition of water so as to increase the distribution coefficient of the catalyst between the upper phase (
4
) and the lower phase.