公开(公告)号：US20170362498A1

公开(公告)日：2017-12-21

申请号：US15536766

申请日：2015-12-16

Applicant: BASF SE

Inventor： Jennifer JACKSON ,  Stefan FRENZEL ,  Oscar LAFUENTE CERDA

IPC: C09K8/74 ,  E21B43/25 ,  E21B41/02 ,  C07C229/16 ,  E21B37/06 ,  E21B37/00 ,  E21B43/26 ,  E21B43/16

CPC classification number: C09K8/74 ,  C07C229/16 ,  C09K8/035 ,  C09K8/52 ,  C09K8/528 ,  C09K8/54 ,  C09K8/58 ,  C09K8/86 ,  C09K2208/32 ,  E21B37/00 ,  E21B37/06 ,  E21B41/02 ,  E21B43/16 ,  E21B43/25 ,  E21B43/26

Abstract: Use of methyl glycine diacetic acid (MGDA) as additive in processes for recovering crude oil and/or gas from subterranean formations, wherein the MGDA is a mixture of L- and D-enantiomers of MGDA or salts thereof, said mixture containing an excess of the respective L-isomer, and the enantiomeric excess (ee) of the L-isomer is in the range of from 10% to 75% Preferably, the process is a processes of acidizing subterranean formations.

公开(公告)号：US20240384040A1

公开(公告)日：2024-11-21

申请号：US18687323

申请日：2022-08-22

Applicant: BASF SE

Inventor： Elena WOLF ,  Oscar LAFUENTE CERDA

IPC: C08G83/00 ,  C08G63/06 ,  C08G63/91 ,  C09K8/524 ,  C10L1/198

Abstract: Hydrophobically modified, hyperbranched polyesters obtainable by a 2-step process of reacting a mixture comprising at least a polyol comprising at least 3 hydroxy groups and a monomer comprising one carboxylic acid group and at least two hydroxy groups, thereby obtaining a hyperbranched polyester comprising terminal hydroxy groups and at least partly esterifying the terminal hydroxy groups with a mixture of carboxylic acids comprising at least linear saturated aliphatic carboxylic acids groups and branched saturated aliphatic carboxylic acids groups. Formulations comprising hydrocarbons and such polyesters and to the use of such hydrophobically modified, hyperbranched polyesters or formulations thereof, as pour-point depressant or wax inhibitor for crude oil.

公开(公告)号：US20240352371A1

公开(公告)日：2024-10-24

申请号：US18685678

申请日：2022-08-17

Applicant: BASF SE

Inventor： Frank PIRRUNG ,  Rainer PACKE-WIRTH ,  Oscar LAFUENTE CERDA ,  Serge IKINK ,  Jan DONATH

IPC: C10L10/16 ,  C10L1/12 ,  C10L1/16 ,  C10L1/182 ,  C10L1/185 ,  C10L1/196 ,  C10L1/197 ,  C10L1/198 ,  C10L1/24 ,  C10L1/26 ,  C10L10/14

CPC classification number: C10L10/16 ,  C10L1/125 ,  C10L1/1616 ,  C10L1/1641 ,  C10L1/1826 ,  C10L1/1852 ,  C10L1/1963 ,  C10L1/1966 ,  C10L1/1973 ,  C10L1/1983 ,  C10L1/2431 ,  C10L1/2437 ,  C10L1/2608 ,  C10L1/2641 ,  C10L10/14 ,  C10L2250/06 ,  C10L2250/082 ,  C10L2300/40

Abstract: Aqueous dispersion of paraffine inhibitors, comprising a continuous aqueous phase comprising water and a water-miscible organic solvent, a dispersed phase comprising at least one paraffin inhibitor component, and at least one anionic surfactant, methods of manufacturing such aqueous dispersions, and the use of such aqueous dispersions as paraffin inhibitor or pour point depressant for crude oil or other hydrocarbon fluids, such as fuel oils or diesel.

公开(公告)号：US20190119161A1

公开(公告)日：2019-04-25

申请号：US16094557

申请日：2017-04-07

Applicant: BASF SE

Inventor： Radoslaw KIERAT ,  Michael Klemens MUELLER ,  Andreas KEMPTER ,  Oscar LAFUENTE CERDA ,  Kai BERGNER

IPC: C04B20/10 ,  C04B28/02 ,  C04B22/06 ,  C04B40/06

Abstract: The invention relates to a process for preparing silica-coated particles of an inorganic expanding agent, the silica-coated particles and their use. The silica-coated particles show a delayed release of the expanding agent particularly in alkaline medium and at elevated temperatures. They are therefore useful in the oil and construction industry.