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    PROCESS FOR PURIFYING ALKANESULFONIC ACIDS
    3.
    发明专利
    PROCESS FOR PURIFYING ALKANESULFONIC ACIDS 未知

    公开(公告)号：CA3004795A1

    公开(公告)日：2017-05-18

    申请号：CA3004795

    申请日：2016-11-08

    Applicant: BASF SE

    Inventor： SPIELMANN JAN ,  KOCH MICHAEL ,  WORTMANN JURGEN ,  RUETHER FEELLY ,  WEIGUNY SABINE ,  BORGMEIER FRIEDER

    IPC: C07C303/44 ,  C07C309/04

    Abstract: The invention relates to a method for purifying alkanesulfonic acids, having the following steps: (a) distilling a melt which contains raw alkanesulfonic acid (1) in order to completely or partly separate low-boiling constituents, wherein the low-boiling constituents are drawn at the head of a distillation column (3) or of a single-stage evaporation device, and a material flow (7) containing alkanesulfonic acid, high-boiling constituents, and residual low-boiling constituents is removed at the bottom of the distillation column (3) or of the single-stage evaporation device, (b) supplying the flow (7) containing alkanesulfonic acid, high-boiling constituents, and residual low-boiling constituents as a discharge melt to a melt crystallization process (9), in which crystals of the alkanesulfonic acid, of hydrates of the alkanesulfonic acid, or of a mixture of both are formed in the mother liquor in a suspended manner, (c) carrying out a solid/liquid separation in order to separate the crystals from the mother liquor, and (d) optionally washing the crystals in order to remove mother liquor adhering to the crystals.

    METHOD OF REPROCESSING ALKANESULFONIC ACID
    5.
    发明专利
    METHOD OF REPROCESSING ALKANESULFONIC ACID 未知

    公开(公告)号：CA3004802A1

    公开(公告)日：2017-05-18

    申请号：CA3004802

    申请日：2016-11-08

    Applicant: BASF SE

    Inventor： SPIELMANN JAN ,  KOCH MICHAEL ,  WORTMANN JUERGEN ,  WEIGUNY SABINE ,  RUETHER FEELLY ,  SENGPIEL ROBERT

    IPC: C07C303/44 ,  C07C309/04

    Abstract: The invention relates to a process for reprocessing alkane sulfonic acid, which is used in a chemical process as an agent, catalyst, or solvent, which comprises the following steps: (a) separating a stream containing alkane sulfonic acid from a reaction mixture which accumulates in the chemical process, (b) feeding the stream containing alkane sulfonic acid as output melt to melt crystallisation, wherein crystals of the alkane sulfonic acid, of hydrates of the alkane sulfonic acid or a mixture of the two are formed, suspended in mother liquor, (c), carrying out a solid-liquid separation in order to separate crystals out of the mother liquor, (d) if necessary, washing the crystals in order to remove mother liquor adhering to the crystals, (e) feeding back the crystals separated from the mother liquor and possibly washed into the chemical process.

    PROCESS FOR PURIFYING ALKANESULFONIC ANHYDRIDE AND PROCESS FOR PRODUCING ALKANESULFONIC ACID USING THE PURIFIED ALKANESULFONIC ANHYDRIDE
    6.
    发明专利
    PROCESS FOR PURIFYING ALKANESULFONIC ANHYDRIDE AND PROCESS FOR PRODUCING ALKANESULFONIC ACID USING THE PURIFIED ALKANESULFONIC ANHYDRIDE 未知

    公开(公告)号：SG11201909640WA

    公开(公告)日：2019-11-28

    申请号：SG11201909640W

    申请日：2018-04-18

    Applicant: BASF SE

    Inventor： WORTMANN JUERGEN ,  SPIELMANN JAN ,  FEDERSEL KATHARINA ,  RUETHER FEELLY

    IPC: C07C303/44 ,  C07C309/00

    Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 25 October 2018 (25.10.2018) WIPO I PCT onion °nolo moiciolomim voimiflo (10) International Publication Number WO 2018/192954 Al (51) International Patent Classification: C07C 303/44 (2006.01) C07C 309/00 (2006.01) (21) International Application Number: PCT/EP2018/059864 (22) International Filing Date: 18 April 2018 (18.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 17166872.6 18 Apri12017 (18.04.2017) EP (71) Applicant: BASF SE [DE/DE]; Carl-Bosch-Str. 38, 67056 Ludwigshafen am Rhein (DE). (72) Inventors: WORTMANN, Juergen; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). SPIELMANN, Jan; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). FED- ERSEL, Katharina; Carl-Bosch-Strasse 38, 67056 Lud- wigshafen (DE). RUETHER, Feelly; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). (74) Agent: KUDLA, Karsten; Isenbruck Bosl Horschler LLP Patentanwalte, EASTSITE ONE, Seckenheimer LandstraBe 4, 68163 Mannheim (DE). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, = (54) Title: PROCESS FOR PURIFYING ALKANESULFONIC ANHYDRIDE AND PROCESS FOR PRODUCING ALKANESUL- FONIC ACID USING THE PURIFIED ALKANESULFONIC ANHYDRIDE Fig. 1 00 O C (57) : The invention relates to a process for purifying alkanesulfonic anhydride which comprises the following steps of: (a) feeding a stream comprising alkanesulfonic anhydride, sulfuric acid, high boilers and residual low boilers into a melt crystallization (25) to form crystals of the alkanesulfonic anhydride suspended in mother liquor, (b) performing a solid-liquid separation to remove the crystals from the mother liquor, (c) optionally washing the crystals to remove mother liquor adhering to the crystals. The invention further relates to processes for producing alkanesulfonic acid using the purified alkanesulfonic anhydride. [Continued on next page] WO 2018/192954 Al O III GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))

    METHOD FOR PURIFYING ALKANESULFONIC ACIDS
    8.
    发明专利
    METHOD FOR PURIFYING ALKANESULFONIC ACIDS 未知

    公开(公告)号：SG11201803926QA

    公开(公告)日：2018-06-28

    申请号：SG11201803926Q

    申请日：2016-11-08

    Applicant: BASF SE

    Inventor： SPIELMANN JAN ,  KOCH MICHAEL ,  WORTMANN JÜRGEN ,  RUETHER FEELLY ,  WEIGUNY SABINE ,  BORGMEIER FRIEDER

    IPC: C07C303/44 ,  C07C309/04

    Abstract: A process comprising: (a) distilling a melt comprising crude alkanesulfonic acid to completely or partly remove low boilers, wherein the low boilers are drawn off at the top of a distillation column or of a one-stage evaporation apparatus and a material stream comprising alkanesulfonic acid, high boilers and residual low boilers is withdrawn at the bottom of the distillation column or of the one-stage evaporation apparatus, (b) sending the stream comprising alkanesulfonic acid, high boilers and residual low boilers into a melt crystallization as the starting melt to obtain crystals formed from the alkanesulfonic acid, hydrates of the alkanesulfonic acid or a mixture of both suspended in mother liquor, (c) performing a solid-liquid separation to remove the crystals from the mother liquor, and (d) optionally washing the crystals to remove mother liquor adhering to the crystals.

    PROCESO PARA REPROCESAR ACIDO ALCANSULFONICO.
    9.
    发明专利
    PROCESO PARA REPROCESAR ACIDO ALCANSULFONICO. 未知

    公开(公告)号：MX375979B

    公开(公告)日：2025-03-06

    申请号：MX2018005879

    申请日：2018-05-10

    Applicant: BASF SE

    Inventor： RUETHER FEELLY ,  SPIELMANN JAN ,  WORTMANN JUERGEN ,  KOCH MICHAEL ,  SENGPIEL ROBERT ,  WEIGUNY SABINE

    IPC: C07C303/44 ,  C07C309/04

    Abstract: La invención se refiere a un proceso para reprocesar ácido alcansulfónico, que se utiliza en un proceso químico como un agente, catalizador o solvente, que comprende las etapas siguientes: (a) separar un flujo que comprende ácido alcansulfónico de una mezcla de reacción que se acumula en el proceso químico, (b) suministrar el flujo que contiene ácido alcansulfónico como un fundido de salida a una cristalización por fusión, en donde se forman cristales del ácido alcansulfónico, de hidratos del ácido alcansulfónico o una mezcla de ambos, suspendidos en el licor madre, (c) realizar una separación sólido-líquido para retirar los cristales del licor madre, (d) de ser necesario, lavar los cristales para retirar el licor madre que se adhieren a los cristales, (e) suministrar de nuevo los cristales separados del licor madre, y posiblemente lavados, al proceso químico.

    PROCESS FOR THE MANUFACTURING OF ALKANESULFONIC ACIDS
    10.
    发明专利
    PROCESS FOR THE MANUFACTURING OF ALKANESULFONIC ACIDS 未知

    公开(公告)号：SG11202007292TA

    公开(公告)日：2020-08-28

    申请号：SG11202007292T

    申请日：2019-01-30

    Applicant: BASF SE

    Inventor： BORGMEIER FRIEDER ,  SPIELMANN JAN ,  ZEILINGER MICHAEL ,  WORTMANN JUERGEN

    IPC: C07C303/06

    Abstract: A process for manufacturing of an alkanesulfonic acid, and an alkanesulfonic acid manufactured by the process. Aspects of the process may involve manufacturing an alkanesulfonic acid by reaction of an initiator composition with an alkane and sulfur trioxide by preparing an initiator composition by reacting aqueous hydrogen peroxide with alkanesulfonic acid and/or H2SO4; and reacting the initiator composition with sulfur trioxide and alkane to form an alkanesulfonic acid, wherein an alkane with a purity of at least 98.0 mol-% is used.

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