2019年10月16日星期三
n methylpyrrolidone application is widely
N-methylpyrrolidone (NMP) is an N-methyl derivative of 2-pyrrolidone, which is a nitrogen heterocyclic compound and has a molecular formula of C5H9O. It is a high-boiling solvent for colorless to pale yellow transparent liquid. It has the characteristics of strong polarity, inertness, low viscosity, strong solubility, good stability, no corrosion, low volatility, etc. It has been applied in many fields such as medicine, food, daily chemical, textile, and detergent. Solvents mainly used in polymerization (such as polyamide, polyimide, polyurea, etc.), spinning solvents for synthetic fibers, solvents for processing functional resins into films
2019年4月15日星期一
Lithium battery industry has broad prospects
In recent years, driven by the electric vehicle market, the lithium battery industry has developed steadily. The demand for N-methylpyrrolidone (NMP), which is mainly used in the field of lithium batteries, has increased significantly, and prices have risen rapidly. Due to the promising future of the lithium battery industry, the N-methyl-2-pyrrolidone market is improving in the next few years.
At present, the domestic production capacity is about 300,000 tons/year. Under the stimulation of demand, many large projects have been put into construction in recent years, reaching a new height in scale. If the capacity under construction is all successfully put into operation, by the end of 2018, China's NMP production capacity will increase by 130%.
China's NMP still has room for development in the high-end field. It can be seen from the import and export data in recent years that the number of imports is still large and increasing year by year. In 2017, China imported 0.88 million tons of NMP, an increase of 41.93%. The shortage of high-end products is still a short-term development of China's NMP industry.
At present, the domestic production capacity is about 300,000 tons/year. Under the stimulation of demand, many large projects have been put into construction in recent years, reaching a new height in scale. If the capacity under construction is all successfully put into operation, by the end of 2018, China's NMP production capacity will increase by 130%.
China's NMP still has room for development in the high-end field. It can be seen from the import and export data in recent years that the number of imports is still large and increasing year by year. In 2017, China imported 0.88 million tons of NMP, an increase of 41.93%. The shortage of high-end products is still a short-term development of China's NMP industry.
2019年2月17日星期日
N-methylpyrrolidone market research and investment prospect report
China N-methylpyrrolidone market research and investment prospect report (2018 version) shows: NMP products are widely used in lithium, medicine, pigments, detergents, insulation materials and other industries. At present, the main application market is focused on manufacturing new lithium-ion batteries. Energy and new materials such as aramid, polyphenylene sulfide and polyimide.
Lithium batteries require very high purity of organic solvents, especially water, and their water content needs to be less than 0.02% or even lower. At present, the content of water in domestic NMP is generally greater than 0.03%. After the imported NMP is purified, its index requirements are: the chroma requirement is less than 10, the purity requirement is greater than 99.9%, and the moisture content requirement is not more than 0.02%. At present, there is less literature on the relevant purification aspects in China, and the purification research of NMP needs to be further strengthened.
International N-methylpyrrolidone production ,with production capacity growing at an average annual rate of 8%-10%. Domestic NMP manufacturers have more and more scattered manufacturers, and the production capacity is relatively small. With the continuous improvement of R&D strength and the improvement of process equipment, the domestic NMP market still has a lot of room for development and shows a good growth momentum.
Hefei Teng Chao Chemical Material Co.,Ltd produce variety of kinds of N-methyl pyrrolidone,includes techinical grade,industrial grade,electronic grade and pharma grade.We also sell the pharma raw material GBL and BDO,
we have the 2 pyrrolidone production line,the capacity is 9000MT/year,according the market volume.Alpha pyrrolidone is as stong solvent and intermediate in pharma,indsutrial and electronic,it's a high quality Synthesis in NVP(n vinylpyrrolidone)etc.
Lithium batteries require very high purity of organic solvents, especially water, and their water content needs to be less than 0.02% or even lower. At present, the content of water in domestic NMP is generally greater than 0.03%. After the imported NMP is purified, its index requirements are: the chroma requirement is less than 10, the purity requirement is greater than 99.9%, and the moisture content requirement is not more than 0.02%. At present, there is less literature on the relevant purification aspects in China, and the purification research of NMP needs to be further strengthened.
2019年1月24日星期四
The future of n-methylpyrrolidone is broad
N-methylpyrrolidone (nmp) is a polar aprotic solvent with high boiling point, strong polarity, low viscosity, strong solubility, no corrosion, low toxicity, good chemical and thermal stability, etc. In the field of aromatics extraction, purification and separation of acetylene, olefins, diolefins, polymer solvents and polymerization solvents. With the rapid development of domestic high-strength engineering plastics such as polyamide, polyimide, and polyphenylene sulfide, and the high-strength fiber, higher requirements are placed on the quality and demand of N-methylpyrrolidone.
At present, there are three main industrial processes for N-methylpyrrolidone: a) γ-butyrolactone (GBL) and monomethylamine (MMA) to synthesize N-methylpyrrolidone; b) γ-butyrolactone and mixed amine Reaction synthesis of N-methylpyrrolidone; c) Dehydrogenation-amination of 1,4-butanediol to prepare N-methylpyrrolidone. The production capacity of N-methylpyrrolidone abroad is mainly concentrated in the hands of a few large companies. More than 10 companies in China are engaged in the production of N-methylpyrrolidone, but the scale of the device is relatively small, the sources of raw materials are many, and the quality of products is poor. Production technology needs to be improved. At present, the annual production of apparent N-methylpyrrolidone in China is 53 kt / a, and it is increasing at a rate of 6% to 8% per year. The prospect of NMP is relatively broad.
2 pyrrolidone is used to prepare a white ink. White ink provides good visibility when printed on transparent and colored substrates. There are particular problems when using white ink in inkjet printing. For example, titanium dioxide is a common white ink pigment and is typically three to four times heavier than pigments used in other color inks. Thus, pigments such as titanium dioxide tend to be more strongly agglomerated and precipitated, and thus clog the nozzles of the inkjet system. Therefore, the development of white inks containing titanium dioxide is particularly challenging. The white ink of the present invention is particularly advantageous for printing colored, transparent and translucent substrates.
polyvinylpyrrolidone K,PVP K has been developed into homopolymer, copolymer and cross-linked polymer. It has three specifications and hundreds of varieties: industrial grade, pharmaceutical grade and food grade. In the application field, the first artificial plasma solvents have been developed into medicine, cosmetics, food, coatings, adhesives, printing and dyeing auxiliaries, separation membranes, photosensitive materials and other fields.
At present, there are three main industrial processes for N-methylpyrrolidone: a) γ-butyrolactone (GBL) and monomethylamine (MMA) to synthesize N-methylpyrrolidone; b) γ-butyrolactone and mixed amine Reaction synthesis of N-methylpyrrolidone; c) Dehydrogenation-amination of 1,4-butanediol to prepare N-methylpyrrolidone. The production capacity of N-methylpyrrolidone abroad is mainly concentrated in the hands of a few large companies. More than 10 companies in China are engaged in the production of N-methylpyrrolidone, but the scale of the device is relatively small, the sources of raw materials are many, and the quality of products is poor. Production technology needs to be improved. At present, the annual production of apparent N-methylpyrrolidone in China is 53 kt / a, and it is increasing at a rate of 6% to 8% per year. The prospect of NMP is relatively broad.
2 pyrrolidone is used to prepare a white ink. White ink provides good visibility when printed on transparent and colored substrates. There are particular problems when using white ink in inkjet printing. For example, titanium dioxide is a common white ink pigment and is typically three to four times heavier than pigments used in other color inks. Thus, pigments such as titanium dioxide tend to be more strongly agglomerated and precipitated, and thus clog the nozzles of the inkjet system. Therefore, the development of white inks containing titanium dioxide is particularly challenging. The white ink of the present invention is particularly advantageous for printing colored, transparent and translucent substrates.
polyvinylpyrrolidone K,PVP K has been developed into homopolymer, copolymer and cross-linked polymer. It has three specifications and hundreds of varieties: industrial grade, pharmaceutical grade and food grade. In the application field, the first artificial plasma solvents have been developed into medicine, cosmetics, food, coatings, adhesives, printing and dyeing auxiliaries, separation membranes, photosensitive materials and other fields.
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