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Author: Subject: Pd/C
stoichiometric_steve
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[*] posted on 20-12-2009 at 08:44


Quote: Originally posted by Nicodem  
the regeneration processes for Pd-C were posted and I think it was pretty simple.


Oh yeah, it is. Wash your used catalyst with whatever organic solvent will take off the crap that you just processed, wash with dilute NaOH, wash off the NaOH until pH=7, dry in plain air, and re-reduce it if necessary.




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Vogelzang
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[*] posted on 27-12-2009 at 18:32


Look at the patents in http://www.uspto.gov/web/patents/classification/uspc502/sche...
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[*] posted on 27-12-2009 at 18:38


http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&p=1...
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[*] posted on 27-12-2009 at 18:50


http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sec...
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[*] posted on 27-12-2009 at 19:18


http://www.google.com/patents?id=PvWfAAAAEBAJ&printsec=a...


http://v3.espacenet.com/publicationDetails/originalDocument?...
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[*] posted on 29-12-2009 at 15:40


Regeneration of Pd and other noble metal catalysts:

US 2208616 Reactivation of spent hydrogenation catalysts

US 2270874 Method of activating catalytic surfaces

US 2344208 Process for regenerating a "spent" noble metal oxide hydrogenation
catalyst

US 2664404 Regeneration of selective hydrogenation catalyst

US 2692240 Reactivation of alumina supported palladium catalysts

US 2955089 Reactivation of deactivated catalyst

US 2963444 Reactivating noble metal containing catalysts

US 3134732 Reactivation of regenerated noble metal catalysts with gaseous
halogens

US 3135699 Process for regenerating a hydrogenation catalyst

US 3214385 Reactivation of spent palladium-oncarbon hydrogenation catalyst

US 3650983 ALKALINE WASH REACTIVATION OF PALLADIUM CATALYSTS USED IN VINYL
ACETATE SYNTHESIS

US 3542863 PALLADIUM CATALYST TREATMENT WITH FORMIC ACID

US 3879311 Catalyst regeneration

US 3959382 Method for reactivating palladium catalysts

US 4092267 Process for regenerating palladium catalysts

US 4147660 Method for reactivation of platinum group metal catalyst with aqueous
alkaline and/or reducing solutions

US 4164481 Process of regenerating a noble metal catalyst used in the reduction
of organic nitro compounds

US 4190554 Method for reactivation of platinum group metal catalyst with aqueous
alkaline and/or reducing solutions

US 4260518 Process for the regeneration of metallic catalysts

US 4422954 Method to restore the metal content of a noble metal hydrogenation
catalyst

US 4717696 Regeneration of a supported palladium catalyst used in the conversion
of cyanohydrins to their aldoses

US 4891346 Redispersal of Ru, Os, Rh and Pd catalysts and processes therewith

US 4914256 Reactivation of partially deactivated catalyst employing ultrasonic
energy

US 4952543 Process for dispersing or redispersing a Group VIII noble metal
species on a porous inorganic support

US 4980324 Regeneration or activation of noble metal catalysts using
fluorohalocarbons or fluorohalohydrocarbons

US 4992614 Reactivation of partially deactivated catalyst employing ultrasonic
energy

US 4999326 Palladium catalyst reactivation

US 5068477 Process for reducing a refining catalyst and use of the catalyst in
hydrogenation

US 5573988 Catalyst regeneration process

US 6071843 Process for reactivating catalyst systems containing a platinum group
metal

US 6740615 Regeneration of used supported noble metal catalysts

US 6753285 Process for regenerating a used precious metal catalyst

US 6908873 Regeneration of spent supported metal catalysts

US 7368409 Regeneration method of heterogeneous catalysts and adsorbents

US 7622416 Hydrogenation catalyst, its preparation and use

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