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公开(公告)号：US10143999B2
公开(公告)日：2018-12-04
申请号：US15525627
申请日：2015-11-11
IPC分类号： B01J27/043 , B01J23/755 , B01J31/18 , B01J35/00 , B01J35/10 , C07F9/145 , C07F15/04
摘要： Disclosed are nickel-containing complexation precursors having high complexation activity for bidentate phosphite ligands. Also disclosed are methods of making the complexation precursors. The disclosed method of generating the nickel-containing complexation precursor includes including contacting a nickel starting material with a reductant under conditions sufficient to generate a nickel-containing complexation precursor having at least about 1,500 ppmw sulfur in the form of sulfide.
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公开(公告)号：US09687836B2
公开(公告)日：2017-06-27
申请号：US14669121
申请日：2015-03-26
IPC分类号： C07C253/10 , B01J31/22 , B01J31/18 , C22B23/02 , B01J31/24 , B01J35/00 , B01J23/755 , B01J35/10
CPC分类号： B01J31/22 , B01J23/755 , B01J31/1845 , B01J31/185 , B01J31/2409 , B01J35/002 , B01J35/006 , B01J35/1009 , B01J2231/322 , B01J2531/007 , B01J2531/847 , C07C253/10 , C22B23/021 , Y10T428/2982 , C07C255/04
摘要： A novel nickel particulate form is provided that efficiently forms a zero-valent nickel complex with a phosphorus-containing ligands in an organic liquid to form a hydrocyanation catalyst. Particles in the nickel particulate form comprise nickel crystallites. For example, the nickel particulate form can have a BET Specific Surface Area of at least about 1 m2/gm; an average crystallite size less than about 20-25 nm, the nickel particulate form can have at least 10% of the crystallites in the nickel form can have can have a diameter (C10) of less than about 10 nm, and/or there are on average at least about 1015 surface crystallites per gram nickel. A ratio of BET SSA to C50 for the nickel particulate form can be at least about 0.1×109 m/gm and preferably at least about 0.4×109 m/gm. Methods of preparation and use are also provided.
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