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Morpholine II

2019-05-21
As a metal corrosion inhibitor, morpholine is mainly used for anticorrosion of metals such as iron, copper, zinc and lead. China is just in its infancy. In terms of solvents, surfactants, fluorescent whitening agents, textile auxiliaries and catalysts, China has also started late.
Morpholine is mainly used in synthetic rubber vulcanization accelerators (NOBS, OTOS, 26) and the like. Among them, it is mainly used for the synthesis of NOBS. Before the 1990s, the consumption of rubber vulcanization accelerators in developed regions such as Europe, the United States and Japan accounted for more than 50% of the total demand for morpholine. Currently, more than 30% of China's consumption is spent on NOBS. In recent years, the toxicity of promoters harmful to nitrosamines in rubber processing has been noted internationally. Many restrictive regulations have been introduced in the world. For example, Germany issued regulations to control nitrosamine levels as early as 1982. Japan, France and the United Kingdom are actively developing new vulcanization accelerators that do not produce nitrosamines, and have successively stopped using vulcanization accelerators that produce nitrosamines. Therefore, the consumption of exogenous morpholine decreases with the inhibition of the promoter NOBS. Although China does not have a corresponding ban on NOBS, China has joined the WTO. Due to the large amount of foreign tires entering and the localization of the required additives, China's rubber vulcanization accelerators also need to be environmentally friendly. NOBS was replaced with a non-toxic accelerator. The trend of the times. In recent years, China's demand for NOBS has decreased significantly. According to the National Tenth Five-Year Plan for Rubber Additives, by 2005, China will basically not use secondary amine accelerators that decompose nitrosamines. If NOBS is banned in China and production ceases, it will have a serious impact on the production and market of morpholine.
According to the current development trend, the consumption of morpholine in non-rubber additives in 2005 will not exceed 4,000 tons. Therefore, the situation of excess supply and demand of morpholine will appear. Due to the long-term ban on the use of toxic promoters in many countries, morpholine will also have different levels of excess and will not be imported from China. The development prospects of morpholine are worrying.
At present, the production of domestic morpholine can meet the market demand, it is not suitable to build new equipment, the existing equipment should be improved in technology, focus on improving product quality, reducing costs, and promoting the development and application of other high-quality, low-cost downstream products. Many of the products produced by morpholine in China are not high in purity and also cause the quality of the accelerator to drop. Therefore, it is necessary to develop high-purity medicines in the future.

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