Catalytic Hydrogen‐Chlorine Exchange between Chlorinated Hydrocarbons under Oxygen‐Free Conditions

Heijden, Alwies W. A. M. van der; Podkolzin, Simon G.; Jones, Mark; Bitter, Johannes H.; Weckhuysen, Bert M.

doi:10.1002/ange.200800270

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…Seine Studien offenbaren Grundlegendes über die Verteilung aktiver Zentren und den Diffusionsmechanismus von Molekülen sowie über Desaktivierungsphänomene in Fischer‐Tropsch‐ und Zeolith‐Katalysatoren (in einem Titelbeitrag der Angewandten Chemie ) 3a. Als weitere Forschungsinteressen zu nennen sind die Umwandlung von Biomasse in Brennstoffe und Grundchemikalien3b und die Synthese geordneter (mikro)poröser Materialien mit Potenzial als Katalysatoren 3c…”

Section: Ausgezeichnet …︁unclassified

Familie‐Hansen‐Preis: S. W. Hell / Innovationspreis: K. Meerholz / Paul‐H.‐Emmett‐Preis: B. M. Weckhuysen

2011

Angewandte Chemie

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Section: Ausgezeichnet …︁unclassified

Familie‐Hansen‐Preis: S. W. Hell / Innovationspreis: K. Meerholz / Paul‐H.‐Emmett‐Preis: B. M. Weckhuysen

2011

Angewandte Chemie

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“…3 For example, CTC is formed in the production of other chlorinated methanes. 4 The output of CTC as a byproduct in the chloromethanes industry is still massive, amounting to 40 000-50 000 tones per year in China. 5 Perchlorinated hydrocarbons and particularly CTC are the most common contaminants in soil and groundwater in the US.…”

Section: Introductionmentioning

confidence: 99%

Novel technology for the rapid total mineralization of carbon tetrachloride under ambient conditions

2013

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Polyhaloalkanes such as carbon tetrachloride (CTC) are classified as biorefractory, highly toxic and ozone depleting materials. Those materials are suspected as being carcinogenic and are widespread contaminants in soil and ground water. Accordingly, schemes to effectively destruct and mineralize polyhalomethanes are in great need. We herewith report a novel reagent composed of sodium hydroxide, hydrogen peroxide and a phase transfer catalyst that swiftly and quantitatively mineralize bulk CTC under ambient conditions. We advocate that the key intermediate in the process is the powerful nucleophile, superoxide anion that is extracted by the phase transfer catalyst into the organic (CTC) phase. This nucleophile rapidly reacts with CTC and completely mineralizes it to sodium carbonate and sodium chloride.

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Selective Production of Carbon Monoxide via Methane Oxychlorination over Vanadyl Pyrophosphate

et al. 2016

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Acatalytic process is demonstrated for the selective conversion of methane into carbon monoxide via oxychlorination chemistry.T he process involves addition of HCl to aC H 4 -O 2 feed to facilitate CÀHb ond activation under mild conditions,leading to the formation of chloromethanes,CH 3 Cl and CH 2 Cl 2 .T he latter are oxidized in situ over the same catalyst, yielding CO and recycling HCl. Amaterial exhibiting chlorine evolution by HCl oxidation, high activity to oxidize chloromethanes into CO,a nd no ability to oxidizeC O, is therefore essential to accomplish this target. Following these design criteria, vanadyl pyrophosphate (VPO) was identified as an outstanding catalyst, exhibiting aC Oy ield up to approximately 35 %a t9 6% selectivity and stable behavior. These findings constitute ab asis for the development of aprocess enabling the on-site valorization of stranded naturalgas reserves using CO as ahighly versatile platform molecule.

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Catalytic Hydrogen‐Chlorine Exchange between Chlorinated Hydrocarbons under Oxygen‐Free Conditions

Cited by 7 publications

References 18 publications

Familie‐Hansen‐Preis: S. W. Hell / Innovationspreis: K. Meerholz / Paul‐H.‐Emmett‐Preis: B. M. Weckhuysen

Familie‐Hansen‐Preis: S. W. Hell / Innovationspreis: K. Meerholz / Paul‐H.‐Emmett‐Preis: B. M. Weckhuysen

Novel technology for the rapid total mineralization of carbon tetrachloride under ambient conditions

Selective Production of Carbon Monoxide via Methane Oxychlorination over Vanadyl Pyrophosphate

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