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公开(公告)号:US4288637A
公开(公告)日:1981-09-08
申请号:US143474
申请日:1980-04-24
IPC分类号: C07B61/00 , B01J27/00 , B01J31/00 , C07C39/02 , C07C67/00 , C07C407/00 , C07C409/08 , C07C409/10 , C07C409/12 , C07C179/035
CPC分类号: C07C39/02 , C07C407/00 , C07C409/08 , C07C409/10 , C07C409/12
摘要: Disclosed is a process for the preparation of aromatic hydroperoxides comprising contacting two liquid phases comprising an oily phase containing an aromatic compound having a secondary alkyl group and a basic aqueous phase under agitation with a molecular oxygen-containing gas in the presence of a copper compound catalyst such as an inorganic salt or organic acid salt of copper, thereby to oxidize the aromatic compound to a corresponding aromatic hydroperoxide, wherein the liquid phase catalytic oxidation is carried out while maintaining the catalyst concentration in the liquid phases at 0.005 to 10 ppm as the copper atom and the pH value of the basic aqueous phase at 7.6 to 10. According to this process, by adoption of the above-mentioned specific catalyst concentration and pH value in combination, the rate of oxidation of the aromatic compound is increased and the selectivity to the hydroperoxide is improved.
摘要翻译: 公开了一种制备芳族氢过氧化物的方法,包括在铜化合物催化剂存在下,将含有含有仲烷基的芳族化合物的油相和搅拌下的碱性水相的两相液相与含分子氧的气体接触 例如铜的无机盐或有机酸盐,从而将芳族化合物氧化成相应的芳香族氢过氧化物,其中进行液相催化氧化,同时将液相中的催化剂浓度保持在0.005〜10ppm,作为铜 原子,碱性水相的pH值为7.6〜10。根据该方法,通过组合使用上述特定催化剂浓度和pH值,芳香族化合物的氧化速率提高,选择性 氢过氧化物得到改善。
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公开(公告)号:US06707081B2
公开(公告)日:2004-03-16
申请号:US09921777
申请日:2001-08-06
IPC分类号: H01L31062
CPC分类号: H01L27/1443
摘要: A photodetector with a built-in circuit includes a semiconductor substrate, an integrated circuit provided on the semiconductor substrate, and a photodiode provided on the semiconductor substrate. The integrated circuit includes a SiGe layer provided on at least a portion of the integrated circuit.
摘要翻译: 具有内置电路的光检测器包括半导体衬底,设置在半导体衬底上的集成电路和设置在半导体衬底上的光电二极管。 集成电路包括设置在集成电路的至少一部分上的SiGe层。
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