公开(公告)号：US09687836B2

公开(公告)日：2017-06-27

申请号：US14669121

申请日：2015-03-26

Applicant: INVISTA North America S.a r.l.

Inventor： Joan Fraga-Dubreuil ,  Vinay Medhekar ,  Thomas A. Micka ,  Keith Whiston

IPC: C07C253/10 ,  B01J31/22 ,  B01J31/18 ,  C22B23/02 ,  B01J31/24 ,  B01J35/00 ,  B01J23/755 ,  B01J35/10

CPC classification number: 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

Abstract: 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.

公开(公告)号：US20150175433A1

公开(公告)日：2015-06-25

申请号：US14415167

申请日：2013-06-24

Applicant: INVISTA NORTH AMERICA S.A R.L.

Inventor： Thomas A. Micka ,  Martin J. Renner

IPC: C01C1/12 ,  B01D53/18

CPC classification number: C01C1/12 ,  B01D53/14 ,  B01D53/1425 ,  B01D53/18 ,  B01D53/58 ,  B01D53/96 ,  B01D2251/60 ,  B01D2251/608 ,  B01D2251/61 ,  B01D2257/406 ,  C01C3/0212 ,  C01C3/022

Abstract: The present invention relates to reduction of corrosion. The present invention includes a method of decreasing corrosion during ammonia extraction. The method includes performing a process to extract ammonia using ammonia extraction equipment. The ammonia extraction equipment includes an ammonia absorber, an ammonia desorber, and an aqueous solution. The aqueous solution includes an acid or an ammonium salt thereof. The method also includes sparging an oxygen-containing gas into the solution in the ammonia absorber, the ammonia desorber, or therebetween. The invention also provides a system that can perform the method.

Abstract translation: 本发明涉及减少腐蚀。 本发明包括在氨提取期间减少腐蚀的方法。 该方法包括执行使用氨提取设备提取氨的方法。 氨提取设备包括氨吸收器，氨解吸器和水溶液。 水溶液包含酸或其铵盐。 该方法还包括将含氧气体喷射到氨吸收器，氨解吸器中或其间的溶液中。 本发明还提供一种可以执行该方法的系统。

公开(公告)号：US20150183649A1

公开(公告)日：2015-07-02

申请号：US14415170

申请日：2013-06-24

Applicant: INVISTA NORTH AMERICA S.A R.L.

Inventor： Thomas A. Micka ,  Martin J. Renner

IPC: C01C1/02 ,  B01D53/14 ,  C01C1/12

CPC classification number: C01C1/02 ,  B01D53/14 ,  B01D53/1425 ,  B01D53/58 ,  B01D53/96 ,  B01D2251/61 ,  B01D2257/406 ,  C01C1/12 ,  C01C3/0212 ,  C01C3/022

Abstract: The present invention relates to reduction of corrosion. The present invention includes a method of decreasing corrosion during ammonia extraction. The method includes performing a process to extract ammonia using ammonia extraction equipment. The ammonia extraction equipment includes an ammonia absorber, an ammonia desorber, and an aqueous solution. The aqueous solution includes an acid or an ammonium salt thereof. The method also includes purging at least part of the aqueous solution. The purged part of the aqueous solution includes at least one corrosion-promoting ion. The method also includes adding a replacement aqueous solution to the aqueous solution. The replacement aqueous solution has a reduced concentration of the at least one corrosion-promoting ion as compared to the purged part of the aqueous solution. The invention also provides a system that can perform the method.

Abstract translation: 本发明涉及减少腐蚀。 本发明包括在氨提取期间减少腐蚀的方法。 该方法包括执行使用氨提取设备提取氨的方法。 氨提取设备包括氨吸收器，氨解吸器和水溶液。 水溶液包含酸或其铵盐。 该方法还包括清洗至少部分水溶液。 水溶液的吹扫部分包括至少一种腐蚀促进离子。 该方法还包括向水溶液中加入替代水溶液。 与水溶液的清洗部分相比，替代水溶液的至少一种腐蚀促进离子的浓度降低。 本发明还提供一种可以执行该方法的系统。