Just saw it! --Domestically produced high-purity terephthalic acid plant launched in Nanjing – Link retained to respect the original work

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A domestically produced advanced purified terephthalic acid plant was developed in Nanjing. http://www.mei.gov.cn/industry/u...edittime=2009-02-19 2009-02-19 14:07:17.0 China Industry News ________________________________________ Recently, the first large-scale domestically produced purified terephthalic acid (PTA) oxidation reactor was successfully developed in Nanjing. It was funded by Chongqing Pengwei Petrochemical Co., Ltd., which is controlled by China Dongfang Hope Group; proprietary technology was provided by the China Textile Industry Design Institute, while Nanjing Baose Color Co., Ltd. was responsible for its manufacturing. 　　A responsible person from Baose Color Shares explained that as the core equipment in PTA production plants, the oxidation reactor has a complex design and welding process; it features numerous control points, high reaction temperatures, and corrosive substances such as acetic acid and catalysts in the feed, resulting in quite stringent process conditions. To ensure the required processing quality for these equipment during manufacturing, the company acquired roll formers capable of rolling sheets up to 100 millimeters thick, large vertical lathes that can handle pieces up to 8.2 meters in length, 3200-ton hydraulic presses, ultra-high-pressure water jet cutters, large edge trimming and milling machines with dual power heads, as well as linear accelerators and cobalt-60 radiation sources for flaw detection. Additionally, the company expanded facilities such as the 8×8.5 meter large heat treatment furnace and the cleanroom areas. 　　Over the past 20 years, China’s PTA production process technologies and equipment have relied on imports, with weak domestic capabilities for independent development. The successful development of this project has broken through the technical barriers imposed by foreign countries on China in terms of key equipment for large-scale PTA plants. Through independent innovation, the PTA oxidation reactors have been made domestically; the price of a million-ton capacity PTA oxidation reactor is around 20 million yuan, which is only half of the price of similar products. This has reduced the investment costs and production costs associated with PTA plants in China, and it plays a significant role in promoting the development of China’s polyester industry and chemical engineering industry, as well as in raising the technical level of titanium-based equipment in the country. 　　The completion of this project has aligned with and guided the prevailing trend in China’s petrochemical industry toward larger-scale, more massive, and domestically produced products, fully meeting the market’s demand for larger and higher-quality custom-designed equipment. In particular, with regard to the requirements for manufacturing large-scale equipment such as those used in PTA, coal-to-oil production, and nickel-cobalt mining, whose total weight ranges from 100 to 600 tons, as well as special material equipment made from nickel-based alloys and high-grade stainless steels, the facility meets the necessary conditions in terms of building height, cleanliness, lifting capacity, and manufacturing precision. This has significantly enhanced Baose Color’s overall strength and international competitiveness.