Oxidation of 2-Methyl Naphthalene to 2-Naphthoic Acid with Co-Mn-Br Catalyst
Gao Hongyan; Liu Hongzhong; Gao Zhixan; Eli Wumanjiang
2012
Source PublicationASIAN JOURNAL OF CHEMISTRY
ISSN0970-7077
Volume24Issue:10Pages:4445-4448
AbstractThe effects of catalyst compositions, reaction parameters such as temperature, pressure and water addition on the liquid phase catalytic oxidation of 2-methyl naphthalene to 2-naphthoic acid over Co-Mn-Br catalyst have been investigated in a high-pressure reactor. It has been demonstrated that each single component of Co, Mn or Br and Co-Mn had little catalytic oxidation activity, while the oxidation was catalyzed by Co-Br, Mn-Br and Co-Mn-Br. Compared with that of Co-Br, the oxidation went smoothly with Mn-Br and higher yield was obtained but with longer reaction time. Therefore, a ternary Co-Mn-Br catalyst was investigated and a maximum product yield of 93 % with intermediate reaction time was realized. The oxidation process showed an induction time,and the time length was determined by both the catalyst composition and oxidation conditions. The induction time decreased with increasing reaction temperature and pressure. It has also been found that they required an initial temperature for the start of oxidation and a minimum pressure for complete oxidation, indicating the substantial impacts of reaction parameters. Addition of water suppressed the oxidation as denoted by both longer induction time and lower product yield, and the reaction did not happen with 7 % water addition.
Keyword2-methyl Naphthalene Co-mn-br Catalyst Catalytic Oxidation 2-naphthoic Acid
Subject AreaChemistry
WOS IDWOS:000310771000045
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/2767
Collection新疆维吾尔自治区精细化工工程技术研究中心
AffiliationChinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China;Yili Normal Univ, Dept Chem, Yining 835000, Peoples R China;Chinese Acad Sci, Inst Coal Chem, Taiyuan 030001, Peoples R China
Recommended Citation
GB/T 7714
Gao Hongyan,Liu Hongzhong,Gao Zhixan,et al. Oxidation of 2-Methyl Naphthalene to 2-Naphthoic Acid with Co-Mn-Br Catalyst[J]. ASIAN JOURNAL OF CHEMISTRY,2012,24(10):4445-4448.
APA Gao Hongyan,Liu Hongzhong,Gao Zhixan,&Eli Wumanjiang.(2012).Oxidation of 2-Methyl Naphthalene to 2-Naphthoic Acid with Co-Mn-Br Catalyst.ASIAN JOURNAL OF CHEMISTRY,24(10),4445-4448.
MLA Gao Hongyan,et al."Oxidation of 2-Methyl Naphthalene to 2-Naphthoic Acid with Co-Mn-Br Catalyst".ASIAN JOURNAL OF CHEMISTRY 24.10(2012):4445-4448.
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