显示标签为“2 pyrrolidone”的博文。显示所有博文
显示标签为“2 pyrrolidone”的博文。显示所有博文

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.

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.