56-23-5Relevant articles and documents
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Johnson et al.
, p. 499 (1959)
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Newton,Rollefson
, p. 718 (1940)
Cheng et al.
, p. 435 (1971)
Cadman, P.,Simons, J. P.
, p. 631 - 641 (1966)
Changing the product state distribution and kinetics in photocatalytic surface reactions using pulsed laser irradiation [11]
Miller,Borisch,Raftery,Francisco
, p. 8265 - 8266 (1998)
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Boswell,McLaughlin
, (1930)
Kiprianow,Kussner
, (1936)
A new strategy to improve catalytic activity for chlorinated volatile organic compounds oxidation over cobalt oxide: Introduction of strontium carbonate
Liu, Hao,Shen, Kai,Zhao, Hailin,Jiang, Yongjun,Guo, Yanglong,Guo, Yun,Wang, Li,Zhan, Wangcheng
, (2021)
Co3O4–SrCO3 catalysts with various Sr/Co ratios were synthesized by the coprecipitation method, and their properties were tuned by adjusting the Sr/Co molar ratio. Furthermore, the catalytic combustion of vinyl chloride (VC) was used to evaluate the catalytic activity of the Co3O4–SrCO3 catalysts. The physicochemical properties of the catalysts were studied by X-ray diffraction (XRD), infrared spectroscopy (IR), N2 sorption, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), H2 temperature-programmed reduction (H2-TPR) and VC temperature-programmed desorption (VC-TPD). The results showed that the Co3O4–SrCO3 catalysts exhibited composite phases of Co3O4 and SrCO3 and the presence of interactions between them. As a result, the crystallization of the Co3O4 phase for the Co3O4–SrCO3 catalysts was restrained, and the state of Co on the catalyst surface was adjusted. Furthermore, the reducibility and VC adsorption capacity of the Co3O4–SrCO3 catalysts with Sr/Co molar ratios of 0.2 and 0.4 were enhanced compared with those of the Co3O4 catalyst. Otherwise, catalyst SrCo-0.4 exhibited excellent catalytic performance, accompanied by the highest reaction rate and the lowest apparent activation energy. More importantly, the optimized SrCO3–Co3O4 catalyst showed superior catalytic performance compared with other transition metal oxides in previous literature. These results brought a new idea for promoting the activity of transition metal catalysts for the deep oxidation of chlorinated volatile organic compounds (CVOCs) by introducing alkaline-earth metal salts.
Nanocrystal metal oxide-chlorine adducts: Selective catalysts for chlorination of alkanes [3]
Sun, Naijian,Klabunde, Kenneth J.
, p. 5587 - 5588 (1999)
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Onion-Like Graphene Carbon Nanospheres as Stable Catalysts for Carbon Monoxide and Methane Chlorination
Centi, Gabriele,Barbera, Katia,Perathoner, Siglinda,Gupta, Navneet K.,Ember, Erika E.,Lercher, Johannes A.
, p. 3036 - 3046 (2015)
Thermal treatment induces a modification in the nanostructure of carbon nanospheres that generates ordered hemi-fullerene-type graphene shells arranged in a concentric onion-type structure. The catalytic reactivity of these structures is studied in comparison with that of the parent carbon material. The change in the surface reactivity induced by the transformation of the nanostructure, characterized by TEM, XRD, X-ray photoelectron spectroscopy (XPS), Raman, and porosity measurements, is investigated by multipulses of Cl2 in inert gas or in the presence of CH4 or CO. The strained C-C bonds (sp2-type) in the hemi-fullerene-type graphene shells induce unusually strong, but reversible, chemisorption of Cl2 in molecular form. The active species in CH4 and CO chlorination is probably in the radical-like form. Highly strained C-C bonds in the parent carbon materials react irreversibly with Cl2, inhibiting further reaction with CO. In addition, the higher presence of sp3-type defect sites promotes the formation of HCl with deactivation of the reactive C-C sites. The nano-ordering of the hemi-fullerene-type graphene thus reduces the presence of defects and transforms strained C-C bonds, resulting in irreversible chemisorption of Cl2 to catalytic sites able to perform selective chlorination. Tidy up the carbon! CO and CH4 chlorination over hemi-fullerene-type graphene is described. The surface nano-ordering, induced by thermal treatment, transforms strained C-C bond sites resulting in irreversible Cl2 chemisorption to catalytic sites that are able to selectively chlorinate CO and CH4.
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Mare, G. R. De,Huybrechts, G.
, p. 1311 - 1318 (1968)
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Petersen, D. E.,Pitzer, K. S.
, p. 1252 - 1253 (1957)
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PRODUCTION OF CARBON TETRACHLORIDE FROM NATURAL GAS
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Paragraph 0058, (2020/07/07)
The present invention provides processes to prepare carbon tetrachloride by the chlorination of natural gas in the presence of a diluent.
METHOD OF CONVERTING ALKANES TO ALCOHOLS, OLEFINS AND AROMATICS
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Paragraph 0054-0055, (2019/08/08)
A cost-effective and energy-efficient process is disclosed for converting a methane-containing gas to a methane sulfonyl halide comprising reacting the methane-containing gas, under illumination by a light emitting diode (LED) source, with a sulfuryl halide or a halogen in the presence of sulfur dioxide, whereby the methane sulfonyl halide is obtained for isolation or further reactions. The further reactions may sequentially include, in order, contacting the methane sulfonyl halide with a catalyst complex to form a methane monohalide; catalytically converting the methane monohalide to a value-added chemical such as an alcohol, an olefin, an aromatic, derivatives thereof, or mixtures thereof; releasing any hydrogen halide formed in the process; and converting the hydrogen halide to a halogen and recycling it for re-use.
