公开(公告)号：US20200317994A1

公开(公告)日：2020-10-08

申请号：US16311015

申请日：2017-06-14

申请人： BASF SE

发明人： Edward BOHRES ,  Radoslaw KIERAT ,  Stephan SCHUNK ,  Carlos LIZANDARA PUEYO ,  Sven TITLBACH ,  Robert MUELLER ,  Michael Ludwig LEJKOWSKI

IPC分类号： C09K8/68 ,  C09K8/80 ,  C09K8/70 ,  E21B43/26

摘要： Method of fracturing a subterranean formation by injecting an aqueous fracturing fluid comprising an aqueous base fluid, a polysaccharide and/or polysaccharide derivative, a crosslinker, which is a water-soluble, layered silicate and a proppant. Aqueous fracturing fluid comprising an aqueous base fluid, a polysaccharide and/or polysaccharide derivative, a crosslinker, which is a water-soluble, layered silicate and a proppant and to the use of water-soluble, layered silicates as crosslinker for aqueous fracturing fluids comprising polysaccharides and/or polysaccharide derivatives

公开(公告)号：US20170128916A1

公开(公告)日：2017-05-11

申请号：US15348217

申请日：2016-11-10

申请人： BASF SE

发明人： Michael LEJKOWSKI ,  Yong LIU ,  Marco HARTMANN ,  Till Christian BRUEGGEMANN ,  Lukas SCHULZ ,  Johannes LIEBERKNECHT ,  Armin LANGE DE OLIVEIRA ,  Stephan A. SCHUNK ,  Andrei-Nicolae PARVULESCU ,  Martin DIETERLE ,  Nicolai Tonio WOERZ ,  Rolf TOMPERS ,  Robert MUELLER

IPC分类号： B01J27/199 ,  C07C51/353 ,  B01J37/08 ,  B01J35/00 ,  B01J37/02

CPC分类号： B01J27/199 ,  B01J23/007 ,  B01J23/14 ,  B01J23/22 ,  B01J23/30 ,  B01J35/0006 ,  B01J37/0205 ,  B01J37/0236 ,  B01J37/024 ,  B01J37/086 ,  B01J37/088 ,  C07C51/353 ,  C07C57/04

摘要： An oxidic composition comprising vanadium, tungsten, phosphorus, oxygen and optionally tin, where the molar ratio of phosphorus to the sum total of vanadium, tungsten and any tin in the oxidic composition is in the range from 1.4:1 to 2.4:1.

公开(公告)号：US20170333877A1

公开(公告)日：2017-11-23

申请号：US15524893

申请日：2015-11-05

申请人： BASF SE

发明人： Sven TITLBACH ,  Stephan A. SCHUNK ,  Robert MUELLER ,  Andreas SUNDERMANN ,  Michael GOEBEL ,  Andrey KARPOV ,  Michel DEEBA ,  Xiaolai ZHENG ,  Robert GLAUM ,  Andreas SCHMITZ

IPC分类号： B01J23/10 ,  B01D53/94 ,  B01J37/06 ,  B01J37/08 ,  B01J37/02 ,  B01J37/03

CPC分类号： B01J23/10 ,  B01D53/945 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/908 ,  B01D2255/9202 ,  B01D2255/9207 ,  B01J21/04 ,  B01J35/1014 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/035 ,  B01J37/06 ,  B01J37/08 ,  C01F7/02 ,  C01F17/0043 ,  C01G25/02 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/13 ,  Y02T10/22

摘要： The present invention relates to a composite oxide comprising ceria, praseodymia and alumina, wherein the cerium:praseodymium molar ratio of the composite oxide is 84:16 or less, as well as to a method of preparing the composite oxide and to its use, in particular in a method of treating an exhaust gas stream.