Johnson Matthey Catalysts

PALLADIUM
Summary of Most Common Supported Catalysts

Catalyst Type

Support Material

Metal Loading %

Typical Applications

21 *
Calcium Carbonate 5 Selective hydrogenation e.g. alkyne to alkene in presence of a catalyst modifier (Lindlar)

31
Silica-alumina powder
2
Hydrogen peroxide production by AQ process

37 *
Carbon powder / paste
3, 5
Aromatic nitro group hydrogenation under mild conditions

38H *
Carbon powder / paste
3, 5
Hydogenation of aromatic and aliphatic nitro/nitroso groups, Carbonyl hydrogenation, Hydrogenolysis e.g. Dehalogenation, Debenzylation, C-N and
C-O cleavage

39K *
Carbon powder / paste
5, 10
Debenzylation, C-N and C-O cleavage, Alkene hydogenation

58 *
Carbon powder / paste
3, 5, 10
Hydrogenation of aromatic and aliphatic nitro groups, Reductive alkylation / amination. Hydrogenation of aromatic nitriles to 1^o -amines

87L *
Carbon powder / paste
3, 5, 10
Hydrogenation of alkynes and alkenes to alkanes, Aromatic nitro hydrogenation, Aromatic aldehyde and ketone hydrogenation to alcohols, Hydrogenolysis e.g. Dehalogenation, C-N and C-O cleavage, Rosenmund reduction, Rosin disproportionation, Reductive alkylation / amination, Selective oxidation

90 *
Carbon powder / paste
5, 10
Aromatic nitro group hydrogenation, Hydrogenation of alkenes to alkanes, Debenzylation

91 *
Carbon powder / paste
20
Debenzylation (Pearlman's catalyst)

325 *
Alumina powder
5
Selective hydrogenation where low activity required

331 *
Carbon powder / paste
5
Reductive alkylation, Hydrogenation of nitriles, Hydrogenation of nitro groups

338 *
Carbon powder / paste
5
Hydrogenation of aromatic and aliphatic nitro / nitroso groups, Carbonyl hydrogenation, Hydrogenolysis e.g. Dehalogenation, Debenzylation, C-N and C-O cleavage

374 *
Carbon powder / paste
5, 10
Alkene reduction

437 *
Carbon powder / paste
3, 5
Aromatic nitro group hydrogenation under mild conditions

438 *
Carbon powder / paste
3, 5
Hydrogenation of aromatic and aliphatic nitro / nitroso groups, Carbonyl hydrogenation, Hydrogenolysis e.g. Dehalogenation, Debenzylation, C-N and C-O cleavage

487 *
Carbon powder / paste
3, 5, 10
Hydrogenation of alkynes and alkenes to alkanes, Aromatic nitro hydrogenation, Aromatic aldehyde and ketone hydrogenation to alcohols, Hydrogenolysis e.g. Dehalogenation, C-N and C-O cleavage, Rosenmund reduction, Rosin disproportionation, Reductive alkylation / amination, Selective oxidation

490 *
Carbon powder / paste
5, 10
Aromatic nitro group hydrogenation, Hydrogenation of alkenes to alkanes, Debenzylation

Note:	Paste catalysts are free flowing, powder-like materials usually containing approximately 50-65% w/w water. The foregoing lists of catalysts and applications are not exhaustive.
	* Catalyst types for which the complete Supply-Refine package is available from Taloja.

Catalyst Type	Support Material	Metal Loading %	Typical Applications
21 *	Calcium Carbonate	5	Selective hydrogenation e.g. alkyne to alkene in presence of a catalyst modifier (Lindlar)
31	Silica-alumina powder	2	Hydrogen peroxide production by AQ process
37 *	Carbon powder / paste	3, 5	Aromatic nitro group hydrogenation under mild conditions
38H *	Carbon powder / paste	3, 5	Hydogenation of aromatic and aliphatic nitro/nitroso groups, Carbonyl hydrogenation, Hydrogenolysis e.g. Dehalogenation, Debenzylation, C-N and C-O cleavage
39K *	Carbon powder / paste	5, 10	Debenzylation, C-N and C-O cleavage, Alkene hydogenation
58 *	Carbon powder / paste	3, 5, 10	Hydrogenation of aromatic and aliphatic nitro groups, Reductive alkylation / amination. Hydrogenation of aromatic nitriles to 1^o -amines
87L *	Carbon powder / paste	3, 5, 10	Hydrogenation of alkynes and alkenes to alkanes, Aromatic nitro hydrogenation, Aromatic aldehyde and ketone hydrogenation to alcohols, Hydrogenolysis e.g. Dehalogenation, C-N and C-O cleavage, Rosenmund reduction, Rosin disproportionation, Reductive alkylation / amination, Selective oxidation
90 *	Carbon powder / paste	5, 10	Aromatic nitro group hydrogenation, Hydrogenation of alkenes to alkanes, Debenzylation
91 *	Carbon powder / paste	20	Debenzylation (Pearlman's catalyst)
325 *	Alumina powder	5	Selective hydrogenation where low activity required
331 *	Carbon powder / paste	5	Reductive alkylation, Hydrogenation of nitriles, Hydrogenation of nitro groups
338 *	Carbon powder / paste	5	Hydrogenation of aromatic and aliphatic nitro / nitroso groups, Carbonyl hydrogenation, Hydrogenolysis e.g. Dehalogenation, Debenzylation, C-N and C-O cleavage
374 *	Carbon powder / paste	5, 10	Alkene reduction
437 *	Carbon powder / paste	3, 5	Aromatic nitro group hydrogenation under mild conditions
438 *	Carbon powder / paste	3, 5	Hydrogenation of aromatic and aliphatic nitro / nitroso groups, Carbonyl hydrogenation, Hydrogenolysis e.g. Dehalogenation, Debenzylation, C-N and C-O cleavage
487 *	Carbon powder / paste	3, 5, 10	Hydrogenation of alkynes and alkenes to alkanes, Aromatic nitro hydrogenation, Aromatic aldehyde and ketone hydrogenation to alcohols, Hydrogenolysis e.g. Dehalogenation, C-N and C-O cleavage, Rosenmund reduction, Rosin disproportionation, Reductive alkylation / amination, Selective oxidation
490 *	Carbon powder / paste	5, 10	Aromatic nitro group hydrogenation, Hydrogenation of alkenes to alkanes, Debenzylation