About polyoxymethylene
Thread Content
After more than a decade of development, China’s polyoxymethylene industry has seen significant growth, and the Polish technology introduced has been well adapted locally in the country. However, compared to international advanced levels, there are still some shortcomings. As a professional chemical industry forum, there are relatively few in-depth technical discussions on this topic. Therefore, this discussion topic is proposed, in the hope that experts from HaiChuan will be able to have thorough discussions on the progress of POM technology both internationally and domestically, market development trends, technology licensing and transfer situations, as well as advancements in domestic technological independence, and provide their suggestions to foster further rapid development of this industry! Welcome to participate actively!
Polyoxymethylene was developed by DuPont in the 1950s. It is divided into two main categories: one is the homopolymer of trimellitic anhydride, known as homopolyoxymethylene; the other is the copolymer of trimellitic anhydride with a small amount of cyclohexane, known as copolyoxymethylene. The copolymerization process using trimellitic anhydride as the polymerization monomer accounts for 80% of the world’s polyoxymethylene production capacity. The production of polyoxymethylene is mainly concentrated in the United States, Western Europe, Japan, and other regions. There are 5 of the most renowned large-scale polyoxymethylene manufacturing enterprise groups in the world: DuPont in the United States, Ticona in the United States, Polyplastics in Japan, BASF in Germany, and KEP in South Korea. The total production capacity of these 5 companies accounts for approximately 77% of the world’s total production capacity. In China, only a few companies produce polyoxymethylene, including Shanghai Solvent Factory, Yunnan Natural Gas Chemical Industry Group Company, Shanxi Jincheng Orchid Science and Technology Co., Ltd., Lanxing Company of Sinopec Group, DuPont and Asahi Kasei in Zhangjiagang, China, and Xinjiang United Chemical Co., Ltd.
Correction: The Shanghai Solvent Factory has been acquired by Lanxing, and its original production facilities have been dismantled. Shanxi Jincheng Orchid Technology Co., Ltd. currently does not have any polyoxymethylene production facilities
Other facilities that are set to be built include the Tianjin Alkali Plant, CNOOC Tianye Chemicals, Xinjiang **, and Henan ** – I’ve forgotten the specific names. :lol
The first in the country is Yuntianhua! No other places have yet seen a real POM plant come online. Foreign-owned POM companies maintain a high level of technological monopoly in the domestic market
Since the commencement of the Tianjian relocation and renovation project in 2005, a total investment of 5.09 billion yuan has been made. At present, the railway dedicated line project supporting Tianjin Alkali Plant has been fully completed and passed the inspection. Eight major projects, including coal gasification projects, caustic soda production projects, thermal power plant projects, ammonia and methanol production projects, main pressure reduction stations, polyoxymethylene production, acetic acid production, and butyl octanol production, are under intense construction. It is expected that the first phase of Tianjian Project will be fully completed by September 2009. Since the start of construction, 5.09 billion yuan has been invested in the relocation and renovation project of Tianjian. At present, gasification projects, caustic soda projects, thermal power plant projects, main pressure reduction stations, polyoxymethylene, acetic acid, synthetic ammonia, methanol, and butyl octyl alcohol projects are under intense construction. The railway spur line for the Tianjin Alkali Plant has been laid and passed the inspection; it is currently in the commissioning phase. It is expected that the first phase of the Tianjiang project will be fully completed by September 2009.
**Does Fuyi also have a polyoxymethylene production process? Tianjin uses its own techniques
**Did Fuyi develop from other technologies through adaptation? Does anyone know?
What is the current gross margin for polyoxymethylene? What is Yuntianhua’s operating rate?
There are many grades of polyoxymethylene, especially copolymerized polyoxymethylene, each with different applications. Is there anyone who knows more about this? I have just started to look into the polyoxymethylene market, and I’ve found that the customers are scattered and the consumption volume is very low; therefore, the sales strategy needs to be carefully considered.
I heard some time ago that the chemical engineering company under CNOOC and **International Fuyi Company used the pilot-scale testing facility at the Lanzhou Institute of Physics, Chinese Academy of Sciences, to conduct experiments on new catalysts for polyoxymethylene production. Do any of you know about this? After introducing Polish technology, Yuntianhua in China encountered significant problems with its trough crystallizers during operation, which caused disruptions in production; production only returned to normal after replacing those crystallizers with others. Currently, Yuntianhua’s main facility has a production capacity of 30,000 tons per year, while it also has production equipment with a capacity of 90,000 tons per year at the Chongqing Changshou Chemical Industry Park