The Oxidation of Iron(II) Sulfate with Sulfur Dioxide and Oxygen Mixtures

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概要

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• The oxidation of iron(II) sulfate with SO<SUB>2</SUB>/O<SUB>2</SUB> (sulfur dioxide and oxygen mixtures) was carried out using an air-lift percolator in the temperature range of 25–50 °C and over the pH range of 0–3. Under conditions in which sulfur dioxide is immediately oxidized, the rate of the oxidation of iron(II) is proportional to the flow rate of sulfur dioxide and independent of the flow rate and partial pressure of oxygen, and the concentration of iron(II). The molar ratio of Fe<SUP>2+</SUP> oxidized/SO<SUB>2</SUB> oxidized is 1.3–2 in the pH range of 0.5–2.0. A free-radical chain reaction in which HSO<SUB>5</SUB><SUP>－</SUP> oxidizes iron(II) is proposed as the reaction mechanism.

• 日本化学会の論文

著者

• Okabe Taijiro

  Department Of Medicine And Bioregulatory Science (third Department Of Internal Medicine) Graduate Sc

• Sato Tsugio

  Department Of Applied Chemistry Faculty Of Engineering Tohoku University

• Goto Takashi

  Department Of Gastroenterology Akita University Graduate School Of Medicine

• Lawson Frank

  Department of Chemical Engineering, Monash University

• Goto Takashi

  Department of Applied Chemistry, Faculty of Engineering

• Sato Tsugio

  Department of Applied Chemistry, Faculty of Engineering

• Okabe Taijiro

  Department of Applied Chemistry, Faculty of Engineering

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