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Author: Subject: Replacement of Pd/C by powdered catalytic converter for hydrogenation reactions.
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[*] posted on 17-6-2022 at 13:39
Replacement of Pd/C by powdered catalytic converter for hydrogenation reactions.


Hi guys !!
I've been working on the replacement of palladium on carbon by powdered catalytic converter.
Testing 3 reactions, Methylene blue reduction, nitrobenzene reduction to aniline and cinnamyl alcohol hydrogenation.

I uploaded a PDF with the experimental report, with images.
I appreciate corrections and recommendations :) hope you like my work :D

Attachment: Replacement of Palladium on Carbon by Powdered Catalytic Converter for Hydrogenation Reactions (1.1MB)
This file has been downloaded 117 times

[Edited on 18-6-2022 by Chem Science]
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Bonee
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[*] posted on 18-6-2022 at 05:55


good work!
Did you use used cat. converter or new one?
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[*] posted on 18-6-2022 at 06:54


Quote: Originally posted by Bonee  
good work!
Did you use used cat. converter or new one?


It was an Old, used catalyst. With low palladium content.
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Mateo_swe
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[*] posted on 19-6-2022 at 09:29


Interesting.

How was the catalyst powder harvested from the converter?
Just crushing the chunks of honeycomb like catalyst material and then preparation as in your pdf?

Edit
Also, do you know if a new and maybe higher palladium converter would preform much better?

[Edited on 2022-6-19 by Mateo_swe]
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[*] posted on 19-6-2022 at 14:33


Quote: Originally posted by Mateo_swe  
Interesting.

How was the catalyst powder harvested from the converter?
Just crushing the chunks of honeycomb like catalyst material and then preparation as in your pdf?

Edit
Also, do you know if a new and maybe higher palladium converter would preform much better?

[Edited on 2022-6-19 by Mateo_swe]


Hi !!
Yes i got 3 samples of Half catalyst, weigh approx. 350g each. All of them arrived just cutted in half [The provider claims to have cutted the converter with a grinder, and the catalyst them self were extracted complete, and cut in half with the grinder to], and i crushed them manually and pulverized in a morter.
2 of them were processed for precios metal extraction, yielding about 150 mg each. (Low palladium content).

Despite the activation procedure being done to preserve palladium, the comparison of activated Vs inactivated suggest that diminishing palladium content is bad.
A newer, higher palladium containing catalyst, should work better.
Mine was really bad.
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