Method of production of vitamin-D
    7.
    发明授权
    Method of production of vitamin-D 失效
    维生素D的生产方法

    公开(公告)号:US4388242A

    公开(公告)日:1983-06-14

    申请号:US358201

    申请日:1982-03-15

    IPC分类号: C07C401/00 C07J17/00 C07J9/00

    摘要: A method of upgrading a product containing a minor proportion of pre-vitamin d.sub.2 or pre-vitamin d.sub.3 and a major proportion of tachysterol comprising irradiating the product with laser light in the wavelength range 330-360 nanometers to obtain a product containing approximately 95% pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3, and heating this product to convert the pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3 to vitamin -D.sub.2 or vitamin -D.sub.3.

    摘要翻译: 一种升级包含少量前维生素D 2或维生素D 3和主要比例的速溶甾类产物的产品的方法,包括用波长范围330-360纳米的激光照射产物,以获得含有约95%预 - 维生素-D2或维生素-D3,并加热该产品以将维生素-D2或维生素-D3转化为维生素-D2或维生素-D3。

    Production of carbonyl fluoride
    9.
    发明授权
    Production of carbonyl fluoride 失效
    生产碳酰氟

    公开(公告)号:US4447304A

    公开(公告)日:1984-05-08

    申请号:US350742

    申请日:1982-02-22

    CPC分类号: C01B31/00 B01J19/121

    摘要: A method of producing carbonyl fluoride by multiphoton decomposition of carbon dioxide-sulphur hexafluoride mixtures comprising irradiating gaseous carbon dioxide-sulphur hexafluoride mixtures in a reaction chamber at a pressure in the 10-50 Torr range with a laser beam at a frequency of about 944 wavenumbers and passing the material from the reaction chamber after irradiation through a chemical processing stage to obtain a carbonyl fluoride product.

    摘要翻译: 一种通过二氧化碳 - 六氟化硫混合物的多光子分解生产碳酰氟的方法,包括在10-50乇范围内的压力下用激光束以约944个波数的频率照射反应室中的气态二氧化碳 - 六氟化硫混合物 并通过化学处理阶段将辐射后的材料从反应室送出,得到碳酰氟产物。