Na promotion of Pd/MgO catalysts for low-pressure one-step synthesis of MIBK from acetone + H2

Lin, Kai-Hsun; Ko, An-Nan

doi:10.1016/s0926-860x(96)00294-3

Cited by 45 publications

(28 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The promotion effect of alkali metals on different noble metal based catalysts has also been investigated [9,10,11,12,13]. It has been found that alkali metals generally have a beneficial effect on both conversion and selectivity on metal oxide supported catalysts, depending on the alkali loading concentration.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous carbon-supported Pd nanoparticles with high specific surface area for cyclohexene hydrogenation: Outstanding catalytic activity of NaOH-treated catalysts

et al. 2016

View full text Add to dashboard Cite

Extremely high specific surface area mesoporous carbon supported Pd nanoparticle catalysts were prepared with both impregnation and polyol-based sol methods. The silica template used for the synthesis of mesoporous carbon was removed by both NaOH and HF etching. Pd/mesoporous carbon catalysts synthesized with the impregnation method has as high specific surface area as 2250 m 2 /g. In case of NaOH etched impregnated samples, the turnover frequency of cyclohexene hydrogenation to cyclohexane at 313 K was obtained ~14 molecules•site -1 •s -1 . Specific surface area of HF etched samples was higher compared to NaOH etched samples. However, catalytic activity was ~3-6 times higher on NaOH etched samples compared to HF etched samples which can be attributed to the presence of sodium and surface hydroxyl-groups of the catalysts etched with NaOH solution.

show abstract

Section: Introductionmentioning

confidence: 99%

Mesoporous carbon-supported Pd nanoparticles with high specific surface area for cyclohexene hydrogenation: Outstanding catalytic activity of NaOH-treated catalysts

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Several studies have been reported on the one-step synthesis of MIBK from acetone, including Pd/resin [2], Pd/C mixed with acidic ion-exchange resin [3,4], Pd/Zr 3 (PO 4 ) 2 [5], Pd/niobic acid [6], Pd/C with NaOH [7], Pd/oxides [8,9], Pd/Na/MgO [10], Pd/ZSM-5 [11], Pd/SAPO [12], Ni/alumina [13], and Pd or Ni/hydrotalcite [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of acidic and metallic sites on the catalytic performance of Pd/ZSM-5 catalysts in the one-step synthesis of mibk

Yang

Shang

Wang

et al. 2007

React Kinet Catal Lett

View full text Add to dashboard Cite

show abstract

“…To deal with the thermodynamic constraints and the more stringent environmental legislation, several catalytic systems have been investigated for the single-stage process wherein n-butyraldehyde and H 2 into 2-ethylhexanal or acetone and H 2 into MIBK are directly converted. Examples of these catalytic systems are Pd on ion-exchange resin [5], Pd or Pt on ZSM-5 [6][7][8], Pd on zeolite X [9,10], Pd on Na/SiO 2 [11], Pd/Nb 2 O 5 / SiO 2 [12,13], Ni/g-Al 2 O 3 [14] and Ni or Pd on Mg(Al)O [15][16][17][18][19][20][21]. Although these single-stage processes seem promising, still high reaction temperatures and pressures are required and side-reactions occur that lower the selectivity of the process and cause catalyst deactivation [17,22,23].…”

Section: Introductionmentioning

confidence: 99%

A hydrotalcite-based catalyst system for the single-stage liquid-phase synthesis of MIBK

Winter

Wolters

Dillen

et al. 2006

Applied Catalysis A: General

View full text Add to dashboard Cite

A comparative study was performed between Pd supported on activated hydrotalcites bi-functional catalysts and physical mixtures of activated hydrotalcites with Pd supported on carbon nanofibers for the single-stage liquid-phase synthesis of methyl isobutyl ketone from acetone and H 2 . Since it was found earlier that the dehydration reaction of diacetone alcohol over activated hydrotalcites is the rate-determining step in this process, Mg-Al hydrotalcites were investigated in the condensation of acetone to diacetone alcohol and its dehydration to mesityl oxide to enhance the activity. A correlation between the number of active base sites, as determined by volumetric CO 2 adsorption measurements at low pressures, and the activity in the dehydration reaction could be derived. A dependency on the Pd-loading (0-1 wt%) of Pd supported on activated hydrotalcites catalysts was found in the single-stage synthesis of methyl isobutyl ketone, whereas no such an effect was found when using physical mixtures of activated hydrotalcites with Pd on carbon nanofibers. Results from TEM, CO 2 chemisorption and N 2 physisorption as well as catalytic experiments in the hydrogenation of mesityl oxide and of cyclohexene indicate that this dependency is largely accounted for by entrapment of Pd particles in the agglomerates of the irregular stacks of hydrotalcite platelets, making these sites inaccessible for the reactants. #

show abstract

Na promotion of Pd/MgO catalysts for low-pressure one-step synthesis of MIBK from acetone + H2

Cited by 45 publications

References 6 publications

Mesoporous carbon-supported Pd nanoparticles with high specific surface area for cyclohexene hydrogenation: Outstanding catalytic activity of NaOH-treated catalysts

Mesoporous carbon-supported Pd nanoparticles with high specific surface area for cyclohexene hydrogenation: Outstanding catalytic activity of NaOH-treated catalysts

Effect of acidic and metallic sites on the catalytic performance of Pd/ZSM-5 catalysts in the one-step synthesis of mibk

A hydrotalcite-based catalyst system for the single-stage liquid-phase synthesis of MIBK

Contact Info

Product

Resources

About