Process for preparing alumina being suitable for layer chromatography
    1.
    发明授权
    Process for preparing alumina being suitable for layer chromatography 失效
    制备氧化铝适用于层析的方法

    公开(公告)号:US4225639A

    公开(公告)日:1980-09-30

    申请号:US49653

    申请日:1979-06-19

    摘要: The invention relates to a process for preparing alumina being suitable for layer chromatography.The alumina suitable for layer chromatography is prepared in accordance with the invention in such a manner that an aluminium trinydroxyde containing 34 to 37% by weight of bayerite, 3 to 5% by weight of pseudoboehmite and 60 to 62% by weight of amorphous aluminium trihydroxide is heated at 300.degree. C. to 400.degree. C. for 2 to 4 hours.The activated alumina thus produced is snow-white, has a large specific surface and its average grain size is within the range between 8 and 20 .mu.m.The product complies with the requirements of layer chromatographical technique.

    摘要翻译: 本发明涉及一种适用于层析层析的制备氧化铝的方法。 根据本发明制备适用于层析层析的氧化铝,使得含有34至37重量%的三羟铝石,3至5重量%的假勃姆石和60至62重量%的无定形三氢氧化铝的三羟甲基纤维素 在300〜400℃下加热2〜4小时。 这样生成的活性氧化铝为白雪白,比表面积大,平均粒径在8〜20μm的范围内。 该产品符合层析技术的要求。