Solubility and calorimetric study of the effects of gas environment on the decomposition of o-nitrobenzoyl chloride
| Autor: | Maria Papadaki, Sarah D. Lever |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
General Chemical Engineering
Thermal decomposition Xylene Inorganic chemistry Energy Engineering and Power Technology Management Science and Operations Research Decomposition Chloride Industrial and Manufacturing Engineering Solvent chemistry.chemical_compound chemistry Control and Systems Engineering medicine Solubility Safety Risk Reliability and Quality Acetonitrile Hydrogen chloride Food Science medicine.drug |
| Zdroj: | Journal of Loss Prevention in the Process Industries. 18:392-396 |
| ISSN: | 0950-4230 |
| DOI: | 10.1016/j.jlp.2005.06.025 |
| Popis: | When ortho -nitrated benzoic acids are chlorinated in xylene and acetonitrile, the product gases, HCl and SO 2 , dissolve in the solvent mixture. Previously measured solubilities [Lever, S. D., Papadaki, M. (2004a). o -Chlorination of 2-nitrobenzoic acid with thionly chloride in xylene and acetonitrile. Solubility study of hydrogen chloride and sulphur dioxide in xylene and acetonitrile, IChemE transactions part B. Process Safety and Environmental Protection . 48–60.] were compared to other published data and found to be in very good agreement. The heat of solution of SO 2 in xylene was evaluated calorimetrically and compared to the value obtained from our previous experimental work. In our previous work [Lever, S. D., Papadaki, M. (2004b). Study of condition-dependent decomposition reactions—the thermal behaviour and decomposItion of 2-nitrobenzoyl chloride part_I. Journal of Hazardous Materials . 115; pp. 91–100], it was reported that the products of the decomposition are condition dependent. The current study showed that the decomposition is extensively promoted by the presence of HCl. This has important safety implications should the process operating temperature be reduced and HCl solution in the solvent mixture be increased. If a thermal runaway began in the increased availability of HCl, an undesirable escalation of the runaway could occur. |
| Databáze: | OpenAIRE |
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