Kinetics of Wet Oxidation of Formic Acid and Acetic Acid

• Published in: Industrial & engineering chemistry research Vol. 36; no. 11; pp. 4809 - 4814
• Main Authors: Shende, Rajesh V, Mahajani, Vijaykumar V
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.11.1997
• Subjects: Applied sciences; Catalysis; Catalytic reactions; Chemistry; Exact sciences and technology; General and physical chemistry; Industrial wastewaters; Pollution; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Wastewaters; Water treatment and pollution; Catalytic reaction; Transition metal Compounds; Temperature effect; Gas liquid reaction; Wet process; Pressure effect; Copper Sulfates; Carboxylic acid; Chemical oxygen demand; Industrial waste water; Medium effect; Homogeneous catalysis; Formic acid; Physicochemical purification; Oxidation; Kinetics; Acetic acid; Waste water purification; Activation energy
• ISSN: 0888-5885; 1520-5045
• DOI: 10.1021/ie970048u

Oxidation of lower molecular weight carboxylic acids such as formic, acetic, glyoxalic, and oxalic acids is often the rate-controlling step during wet oxidation (WO) of an aqueous waste stream exhibiting very high chemical oxygen demand (COD). The kinetics of WO of formic acid was studied in the absence and presence of a cupric sulfate as catalyst in the temperature range 150−240 °C and oxygen partial pressure range 0.345−1.380 MPa. Wet oxidation of acetic acid was carried out in the presence of cupric sulfate in the temperature range 215−235 °C. Homogeneous copper sulfate was found to be a very good catalyst for oxidation of formic acid and acetic acid.