Isophthalic acid (IPA) is commercially produced using the Co–Mn–Br catalyst system, which suffers from the shortcomings of the discharge of CH₃Br and corrosion of equipment. It is necessary to develop a technology to avoid the pollution caused by bromide. The production of IPA from the oxidation of m‐xylene (MX) by air is realized under catalysis with H₃PW₁₂O₄₀ (HPW) loaded on carbon and cobalt.

中文翻译：

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Co（II）与负载在酒石酸修饰的碳上的磷钨酸催化的间苯二甲酸生产

间苯二甲酸（IPA）是使用Co-Mn-Br催化剂体系商业生产的，该体系具有CH ₃ Br排放和设备腐蚀的缺点。有必要开发一种技术来避免由溴化物引起的污染。从氧化生产IPA的米二甲苯（MX）由空气下用H催化实现₃ PW ₁₂ ø ₄₀（HPW）加载在碳和钴。