echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Chemicals Industry > China Chemical > my country's H12MDA green preparation technology ranks at the international advanced level

    my country's H12MDA green preparation technology ranks at the international advanced level

    • Last Update: 2022-09-07
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com

    On September 3, Shaanxi Coal Industry Chemical Technology Development Center Co.


    4,4'-Methylenebiscyclohexylamine (H12MDA) is a kind of special amine.


    MDA catalytic hydrogenation green preparation H12MDA technology uses 4,4'-methylene diphenylamine (MDA) as raw material, adopts self-developed new high-efficiency special catalyst, does not add high-polluting liquid caustic soda, and converts it into H12MDA, a new low-cost green process route


    According to Wang Liguo, a researcher at the Institute of Process Engineering, Chinese Academy of Sciences, in view of the harsh reaction conditions, complex reaction system, low product selectivity in traditional processes, and the need to add lye to tetrahydrofuran solvent to suppress the side reactions of deamination and condensation, their research team innovatively proposed The preparation technology of low-load Ru-based catalyst on nitrogen-containing support forms a metal-N coordination center, provides abundant basic sites on the surface of the catalyst, realizes effective metal immobilization, and prevents particle agglomeration


    Relying on the laboratory's small-scale technology, Shaanxi Coal Technology Center built a 100-ton MDA catalytic hydrogenation green preparation H12MDA pilot plant in Weinan, Shaanxi, which opened up the process flow and realized long-term safe and stable operation


    Experts believe that the technology does not use lye, the "three wastes" emissions are reduced, the reaction conditions are mild, and it has the characteristics of green environmental protection and higher safety, and it is recommended to speed up its industrial application


    Song Shuangtian, chairman of Shaanxi Coal Technology Center Co.


    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.