【Ten Years of Rapid Development in Chemical Equipment】Domestic production of titanium welded tubes for PTA oxidation reaction condensers from 2016 to 2020
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Witnessing the decade-long rapid development of chemical processing equipment; praising the prosperity and strength of modern China. Replies will be rewarded; discussions are welcome------------------------------------------- For large-scale organic raw materials such as purified terephthalic acid (PTA), equipment manufacturers are still required to use titanium seamless tubes and imported titanium welded tubes as the heat exchange tubes in the PTA oxidation reaction condensers. Analyzing the demand in China’s PTA market as well as the scale of new production facilities, it is believed that there will be strong demand for titanium tubes used in PTA oxidation reaction condensers, and efforts should be accelerated to promote the use of domestically produced titanium welded tubes. It focuses on analyzing the differences between titanium welded tubes and titanium seamless tubes in terms of processing techniques and product quality, concluding that titanium welded tubes are more suitable than titanium seamless tubes as heat exchange tubes for PTA oxidation reaction condensers. After more than a decade of development, the processing technology and product quality of titanium welded tubes in our country are now on par with those of imported products. It has become an inevitable trend for domestic titanium welded tubes to replace titanium seamless tubes in PTA oxidation reaction condensers. In 2020, the oxidation reaction condenser for Ningbo Yisheng’s 3 ×10⁶t PTA project used 273 tons of domestically produced Grade 2 titanium welded tubes (Ф19.05 mm × 1.245 mm × 9760 mm), marking a milestone in the domestic use of such titanium welded tubes for PTA oxidation reaction condensers in China.
In developed countries abroad, as early as the 1980s, titanium welded tubes replaced titanium seamless tubes as the preferred material for heat exchange tubes; the vast majority of PTA projects abroad use titanium welded tubes. However, in China, the production of titanium welded pipes started relatively late. In 2006, Baotai Group, together with the French company Valtimet and the American company Timet, established two fully automated production lines for titanium welded pipes in Xi’an; as a result, domestically produced titanium welded pipes began to gain prominence. After more than 10 years of development, China’s titanium welded pipe industry has achieved a production capacity of nearly 10⁴ tons per year. Among them, companies such as Huzhou Baotai Jiuli Titanium Welded Pipe Technology Co., Ltd. (hereinafter referred to as Baotai Jiuli) and Hunan Xiangtou Jintian New Materials Technology Co., Ltd. have a total production capacity of over 5,000 tons per year for high-quality titanium welded pipes. The quality of these titanium welded pipes is comparable to that of imported products, and they can fully meet the technical requirements for titanium pipes used in PTA oxidation reaction condensers. However, foreign PTA process package suppliers still have an outdated view of the development of China’s titanium welded tube industry; they continue to require equipment manufacturers to use titanium seamless tubes or imported titanium welded tubes as heat exchange tubes. There is therefore an urgent need to increase awareness of domestically produced titanium welded tubes, in order to accelerate their use in PTA oxidation reaction condensers and reduce the investment costs associated with PTA plants.
Wish a prosperous and strong China.
Wish a prosperous and strong China.
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