Recovery of vanadium values
    1.
    发明授权
    Recovery of vanadium values 失效
    回收钒值

    公开(公告)号:US4913885A

    公开(公告)日:1990-04-03

    申请号:US186947

    申请日:1988-04-27

    摘要: Vanadium values useful for catalyst regeneration are recovered from compositions/materials comprised thereof, typically spent V.sub.2 O.sub.5 catalysts, by intimately contacting an aqueous suspension of such a material with a gaseous admixture of sulfur dioxide and oxygen, whereby a phase separation thus results, and recovering an aqueous phase constituting a solution of vanadium values.

    摘要翻译: 通过将这种材料的水性悬浮液与二氧化硫和氧气的气体混合物紧密接触,从其组成的组合物/材料(通常为V 2 O 5催化剂)中回收用于催化剂再生的钒值,由此产生相分离,并回收 水相构成钒值溶液。

    Photocatalytic rutile titanium dioxide
    4.
    发明授权
    Photocatalytic rutile titanium dioxide 有权
    光催化金红石二氧化钛

    公开(公告)号:US07521039B2

    公开(公告)日:2009-04-21

    申请号:US10291104

    申请日:2002-11-08

    IPC分类号: C01G23/047

    摘要: The present invention is directed to photocatalytically active rutile titanium dioxide. The photocatalytically active rutile titanium dioxide of the present invention demonstrates enhanced activity in the visible light spectrum. It may be produced by neutralizing rutile seed to a higher pH than that at which it has traditionally been neutralized prior to washing and thermally treating the seed.

    摘要翻译: 本发明涉及光催化活性金红石二氧化钛。 本发明的光催化活性金红石二氧化钛在可见光谱中表现出增强的活性。 它可以通过将金红石种子中和到比在传统上在洗涤和热处理种子之前中和的pH更高的pH下产生。