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    Absorbent and process for selectively removing hydrogen sulfide
    12.
    发明授权
    Absorbent and process for selectively removing hydrogen sulfide 有权

    公开(公告)号：US11458433B2

    公开(公告)日：2022-10-04

    申请号：US16643665

    申请日：2018-08-30

    Applicant: BASF SE ,  ExxonMobil Research and Engineering Company

    Inventor： Martin Ernst ,  Gerald Vorberg ,  Thomas Ingram ,  Georg Sieder ,  Carla Pereira

    IPC: B01D53/14

    Abstract: An absorbent for the selective removal of hydrogen sulfide over carbon dioxide from a fluid stream, wherein the absorbent contains an aqueous solution, comprising an amine of formula (I) and/or an amine of formula (II) wherein U—V—W is CH—O—CHR5, N—CO—CHR5 or N—CO—NR5; U′—V′—W is C—O—CR5; R1 is independently C1-C5-alkyl; R2 is selected from hydrogen and C1-C5-alkyl; R3 is independently selected from hydrogen and C1-C5-alkyl; R4 is independently selected from hydrogen and C1-C5-alkyl; R5 is selected from hydrogen, C1-C5-alkyl, (C1-C5-alkoxy)-C1-C5-alkyl, and hydroxy-C1-C5-alkyl; and x is an integer from 1 to 10. The absorbent has a reduced tendency for phase separation at temperatures falling within the usual range of regeneration temperatures for the aqueous amine mixtures and a low volatility in aqueous solvents.

    Process for preparation of amino alcohols
    16.
    发明授权
    Process for preparation of amino alcohols 有权

    公开(公告)号：US11512040B2

    公开(公告)日：2022-11-29

    申请号：US17257080

    申请日：2019-07-02

    Applicant: BASF SE ,  BASF CORPORATION ,  THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

    Inventor： Martin Ernst ,  Stephan Zuend ,  Bo Su ,  Ala Bunescu ,  John F. Hartwig

    IPC: C07C213/00

    Abstract: A process for the preparation of amino alcohols includes condensing a compound of Formula (II), a stereoisomer, a tautomer, or a salt thereof with a compound of Formula (IIIa) or Formula (IIIb), a stereoisomer, a tautomer, or a salt thereof to form a condensation product; hydroxylating or acyloxylating the condensation product in the presence of an oxidant to obtain a hydroxylation or acyloxylation product; and subjecting the hydroxylation or acyloxylation product to one or more subsequent reactions comprising a hydrolysis reaction, alcohol deprotection, an amino lysis reaction, or a combination of two or more thereof to obtain an amino alcohol of Formula (I).

    Use Of Poly(Oxyalkylene)Oxy- And/Or Poly(Oxyalkylene)Aminoalkyltrialkoxysilanes As Dispersants
    19.
    发明申请
    Use Of Poly(Oxyalkylene)Oxy- And/Or Poly(Oxyalkylene)Aminoalkyltrialkoxysilanes As Dispersants 审中-公开
    使用聚（氧化烯）氧基和/或聚（氧化烯）氨基烷基三烷氧基硅烷作为分散剂

    公开(公告)号：US20160297928A1

    公开(公告)日：2016-10-13

    申请号：US15026373

    申请日：2014-09-30

    Applicant: BASF SE

    Inventor： Martin Ernst ,  Achim Feßenbecker

    IPC: C08G65/336 ,  C04B28/04 ,  C04B24/42

    CPC classification number: C08G65/336 ,  C04B24/42 ,  C04B28/006 ,  C04B28/02 ,  C04B2103/408 ,  C08G2650/50 ,  Y02P40/165 ,  C04B14/42

    Abstract: Poly(oxyalkylene)oxy- and/or poly(oxyalkylene)aminoalkyltrialkoxysilanes are of the general formula (I) where —X— is —O— or —N(R4)2-a—; —Y— is —CH2—; —Z— is —O—(CH2)d—C(R5)2-c—; a is 1 if —X—═—O—, and is 1 or 2 if —X—═—N(R4)2-a—; b is 0 or 1; c is 0, 1 or 2; d is 0 or 1; m is independently from an integer from 1 to 6; p is a number from 7 to 200; R1 is independently methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, or phenyl; R2 is H or methyl; R3, R4, and R5 are independently H or linear or branched C1-C6-alkyl; R6 is independently H, methyl or ethyl; and R7 is H, linear or branched C1-C6-alkyl, linear or branched C1-C10-alkanoyl, or C6-C10-aryloyl; as dispersants for aqueous suspensions composed of aggregates and hydraulic binders, and to aqueous suspensions. Also provided: a process for preparing the alkyltrialkoxysilanes.

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