1929-82-4Relevant articles and documents
Standard enthalpy of formation of 2-chloro-6-(trichloromethyl)pyridine
Tan, Zhi-Cheng,Kamaguchi, Akeji,Nagano, Yatsuhisa,Sakiyama, Minoru
, p. 615 - 624 (1989)
The standard enthalpy of formation of 2-chloro-6-(trichloromethyl)pyridine(cr) was determined to be -(55.4 +/- 1.8) kJ * mol-1 at 298.15 K by rotating-bomb oxygen combustion calorimetry using paraffin oil as a combustion aid and As2O3(aq) as a reducing agent for Cl2 formed.Nitric acid and chlorometallic acids of noble metals present in the final bomb solution were analysed by ion-chromatographic and atomic-absorption spectrometric methods, respectively.The effect of catalytic pre-oxidation of As2O3(aq) was evaluated.The standard molar energy of combustion was calculated using a computation form derived by combining that for CHON compounds with that for CHOCl compounds.The modifications of the form are described.
Preparation method for 2-chloro-6-trichloromethylpyridine and catalyst thereof and preparation method for catalyst
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Paragraph 0043-0057, (2018/10/19)
The invention discloses a preparation method for 2-chloro-6-trichloromethylpyridine and a catalyst thereof and a preparation method for the catalyst, and belongs to the field of the 2-chloro-6-trichloromethylpyridine. The catalyst for preparing the 2-chloro-6-trichloromethylpyridine comprises a carrier and iron-containing pyridine chlorine salt ionic liquid, and the iron-containing pyridine chlorine salt ionic liquid is loaded on the carrier. The catalyst is capable of, through loading the iron-containing pyridine chlorine salt ionic liquid on the carrier, greatly improving a contact area of the catalyst of a reactant, and improving a preparation efficiency of the 2-chloro-6-trichloromethylpyridine. In addition, the invention further relates to the preparation method for the catalyst for preparing the above 2-chloro-6-trichloromethylpyridine and the preparation method for the 2-chloro-6-trichloromethylpyridine. Defects existing in a traditional 2-chloro-6-trichloromethylpyridine preparation method that a reaction temperature is overhigh, the yield of a finished product is low and the catalyst is not easy to regenerate because of deactivation are overcome.
MACROKINETIC RELATIONSHIPS OF HIGH-TEMPERATURE CHLORINATION OF 2-PICOLINE HYDROCHLORIDE
Emel'yanov, V. I.,Stul',B. Ya.
, p. 2362 - 2365 (2007/10/02)
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