公开(公告)号：US20150196900A1

公开(公告)日：2015-07-16

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: B01J31/22 ,  C07C253/10

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.

Abstract translation: 提供了一种新颖的镍颗粒形式，其有效地与有机液体中的含磷配体形成零价镍络合物以形成氢氰化催化剂。 镍颗粒形式的颗粒包括镍微晶。 例如，镍颗粒形式可以具有至少约1m 2 / gm的BET比表面积; 平均微晶尺寸小于约20-25nm，镍颗粒形式可以具有至少10％的镍形式的微晶可以具有小于约10nm的直径（C10），和/或存在 平均每克镍至少约1015个表面微晶。 镍颗粒形式的BET SSA与C50的比例可以为至少约0.1×10 9 m / gm，优选为至少约0.4×109m / gm。 还提供了制备和使用方法。

公开(公告)号：US20160068633A1

公开(公告)日：2016-03-10

申请号：US14786677

申请日：2014-04-15

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

Inventor： Thomas A. MICKA ,  Charles R. KELMAN, SR. ,  John P. POINSATTE ,  Robert J. WELCH ,  Gary R. WEST

IPC: C08G69/28 ,  B01J19/24

CPC classification number: C08G69/28 ,  B01J19/2415

Abstract: The present disclosure relates to systems and methods for recovering water from a condensation reaction of at least one carboxylic acid and at least one diamine to make polyamide. The method can include obtaining, from an evaporator, an aqueous mixture comprising a partially polymerized polyamide and at least one of a carboxylic acid and diamine; passing the aqueous mixture through a tubular reactor comprising subjecting the aqueous mixture to a temperature and pressure sufficient to further polymerize the partially polymerized polyamide by condensation of the carboxylic acid and diamine, thereby producing water having a substantially gaseous phase; passing the water having a substantially gaseous phase into a rectification column thereby removing one or more of a diamine, a carboxylic acid and polyamide to provide purified water having a substantially gaseous phase; and condensing the purified water having a substantially gaseous phase into purified water having a substantially liquid phase. The system can include, among other things, a tubular reactor, a rectification column, a condensation assembly, and a conduit network.

Abstract translation: 本公开涉及从至少一种羧酸和至少一种二胺的缩合反应中回收水以制备聚酰胺的系统和方法。 该方法可以包括从蒸发器获得包含部分聚合的聚酰胺和至少一种羧酸和二胺的含水混合物; 使含水混合物通过管式反应器，包括使含水混合物经受足以通过羧酸和二胺的缩合进一步聚合部分聚合的聚酰胺的温度和压力，从而产生具有基本气相的水; 将具有基本气相的水通入精馏塔中，从而除去二胺，羧酸和聚酰胺中的一种或多种以提供具有基本上气相的净化水; 并将具有基本气相的净化水冷凝成具有基本上液相的纯净水。 该系统可以包括管式反应器，精馏塔，冷凝组件和导管网络。