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    COPOLIMERO QUE CONTIENE CATIONES MULTIVALENTES, PROCESO PARA LA PRODUCCION Y USO DE ESTE PARA TRATAR DISPERSIONES ACUOSAS.
    1.
    发明专利
    COPOLIMERO QUE CONTIENE CATIONES MULTIVALENTES, PROCESO PARA LA PRODUCCION Y USO DE ESTE PARA TRATAR DISPERSIONES ACUOSAS. 未知

    公开(公告)号：MX393686B

    公开(公告)日：2025-03-24

    申请号：MX2018006097

    申请日：2018-05-16

    Applicant: BASF SE

    Inventor： MISSLITZ HOLGER ,  CATLING MITCHELL LOUIS ,  ADKINS STEPHEN JOHN

    IPC: C08F220/06 ,  C02F1/28 ,  C02F1/56 ,  C08F220/56 ,  C09K8/00

    Abstract: Se describe un copolímero que contiene cationes multivalentes derivado de uno o más ácidos etilénicamente insaturados. El copolímero tiene las siguientes características: (a) una viscosidad intrínseca de al menos alrededor de 3 dl/g cuando se mide en una solución de NaCI 1 M a 25 °C; (b) el copolímero se deriva de una mezcla de monómeros que comprende un ácido etilénicamente insaturado y al menos un comonómero, el ácido etilénicamente insaturado presente en una cantidad en el rango de alrededor de 5 % a alrededor de 65 % en peso; y (c) un contenido de comonómero residual de menos de 1000 ppm cuando el comonómero es una acrilamida. El copolímero, entre otros, es útil como floculante para el tratamiento de una suspensión acuosa que comprende material particulado, preferentemente, relaves de una operación de minería.

    MULTIVALENT CATION-CONTAINING COPOLYMER, PROCESS FOR PRODUCTION THEREOF AND USE THEREOF TO TREATING AQUEOUS DISPERSIONS
    2.
    发明专利
    MULTIVALENT CATION-CONTAINING COPOLYMER, PROCESS FOR PRODUCTION THEREOF AND USE THEREOF TO TREATING AQUEOUS DISPERSIONS 未知

    公开(公告)号：ZA201803825B

    公开(公告)日：2019-09-25

    申请号：ZA201803825

    申请日：2018-06-08

    Applicant: BASF SE

    Inventor： ADKINS STEPHEN JOHN ,  MISSLITZ HOLGER ,  CATLING MITCHELL LOUIS

    Abstract: There is disclosed a process for producing multivalent cation containing copolymer derived from one or more ethylenically unsaturated acids. The copolymer has the following characteristics: (a) an intrinsic viscosity of at least about 3 dl/g when measured in 1 M NaCl solution at 25°C; (b) the copolymer is derived from a monomer mixture comprising an ethylenically unsaturated acid and at least one comonomer, the ethylenically unsaturated acid present in an amount in the range of from about 5% to about 65% by weight; and (c) a residual comonomer content is less than 1000 ppm when the comonomer is an acrylamide. The copolymer, inter alia, is useful as a flocculant for treating an aqueous slurry comprising particulate material, preferably tailings from a mining operation.

    METHOD FOR SEPARATING SOLIDS FROM A TAILINGS SLURRY
    6.
    发明专利
    METHOD FOR SEPARATING SOLIDS FROM A TAILINGS SLURRY 未知

    公开(公告)号：CA3151822A1

    公开(公告)日：2022-09-16

    申请号：CA3151822

    申请日：2022-03-14

    Applicant: BASF SE

    Inventor： POWELL MARTIN DAVID ,  HOFINGER JULIA ,  CATLING MITCHELL LOUIS ,  TORRES LOPEZ CORALYS

    IPC: B03D1/08

    Abstract: The invention relates to a method for separating solids from a tailings slurry that has a solids content of from 25 to 70% by weight and comprises sand particles and fines particles with a sand to fines ratio (SFR) of from 0.5:1 to 5:1, in which the fines particles comprise clay. The method involves adding to the tailings slurry a clay decoagulant reagent (DGR) and a flocculent. The method comprises at least one first mass flow (MS1) of the tailings slurry (TS) which flows to at least one first mixing region (MRI) containing at least one agitation means (AGI), optionally at least one second mass flow (MS2) flowing the tailings slurry (TS) from the at least one first mixing region (MRI) to at least one second mixing region (MR2) containing at least one agitation means (AG2). The tailings slurry (TS) is flowed from the at least one first mixing region (MRI) and/or optionally at least one second mixing region (MR2) as at least one conditioned tailings stream (CTR) which is separated into a solids rich phase and a solids depleted liquor. The method is controlled by of at least one item of information (11) associated with at least one first mass flow (MS1) and is directly or indirectly selected from the group consisting of the sand to fines ratio (SFR); the solids content; the specific gravity; the clay content and the flow rate of the tailings slurry (TS) in the at least one first mass flow (MS1), optionally at least one item of information (13) associated with fluidity measurements (FM1) showing any change in fluidity of the tailings slurry (TS) in the at least one first mixing region (MRI), optionally at least one item of information (14) associated with fluidity measurements (FM2) showing any change in fluidity of the tailings slurry (TS) in the at least one second mixing region (MR2), at least one item of information (15) associated with (15a) the at least one conditioned tailings stream (CTR); and/or (I5b) components of the at least one conditioned tailings stream (CTR) separated therefrom, wherein (15a) is associated with changes to the structure of the conditioned tailings stream (CTR) and (I5b) is associated with changes in at least one of the group selected from solids/liquid separation rate; volume of released liquid; turbidity of released liquid; and moisture content of separated solids.

    СПІВПОЛІМЕР, ЩО МІСТИТЬ БАГАТОВАЛЕНТНИЙ КАТІОН, СПОСІБ ЙОГО ОДЕРЖАННЯ ТА ЙОГО ЗАСТОСУВАННЯ В ОБРОБЦІ ВОДНИХ ДИСПЕРСІЙ
    7.
    发明专利
    СПІВПОЛІМЕР, ЩО МІСТИТЬ БАГАТОВАЛЕНТНИЙ КАТІОН, СПОСІБ ЙОГО ОДЕРЖАННЯ ТА ЙОГО ЗАСТОСУВАННЯ В ОБРОБЦІ ВОДНИХ ДИСПЕРСІЙ 未知

    公开(公告)号：UA122351C2

    公开(公告)日：2020-10-26

    申请号：UAA201806508

    申请日：2016-11-14

    Applicant: BASF SE

    Inventor： ADKINS STEPHEN JOHN ,  MISSLITZ HOLGER ,  CATLING MITCHELL LOUIS

    Abstract: Розкритимє співполімер, міститьбагатовалентнийкатіон, отриманийз однієїабодекількохетиленненасиченихкислот. Співполімермаєнаступніхарактеристики: (а) внутрішнюв'язкістьщонайменшеприблизно 3 дл/гпривимірюваннів 1Мрозчині NaCl при 25 °C; (b) співполімерє отриманимз мономерноїсуміші, якавключаєетиленненасиченукислотутащонайменшеодинспівмономер, причомуетиленненасиченакислотаприсутняв кількостів діапазонівідприблизно 5 % доприблизно 65 % замасою; та (с) вмістзалишковогоспівмономерастановитьменшеніж 1000 м.ч., колиспівмономерявляєсобоюакриламід. Співполімер, середіншого, єприйнятнимякфлокулянтдляобробкиводноїсуспензії, якавключаєдисперснийматеріал, переважновідходизбагаченнявідвидобуткукориснихкопалин.

    СОПОЛИМЕР, СОДЕРЖАЩИЙ МНОГОВАЛЕНТНЫЙ КАТИОН
    9.
    发明专利
    СОПОЛИМЕР, СОДЕРЖАЩИЙ МНОГОВАЛЕНТНЫЙ КАТИОН 未知

    公开(公告)号：EA039927B1

    公开(公告)日：2022-03-29

    申请号：EA201891155

    申请日：2016-11-14

    Applicant: BASF SE

    Inventor： ADKINS STEPHEN JOHN ,  MISSLITZ HOLGER ,  CATLING MITCHELL LOUIS

    Abstract: Описансополимер, содержащиймноговалентныйкатион, причемсополимерявляетсяводорастворимыми находитсяв видечастици сополимерполученизоднойилиболееэтилен-ненасыщенныхкислот, приэтомуказанныйсополимеримеетследующиехарактеристики: (a) характеристическаявязкостьсоставляетпоменьшеймере 3 дл/гприизмерениив 1 Мрастворе NaCl при 25°C; (b) сополимерполученизмономернойсмеси, содержащейэтилен-ненасыщеннуюкислотуи поменьшеймереодинсомономер, приэтомколичествоприсутствующейв мономернойсмесиэтилен-ненасыщеннойкислотысоставляетот 5 до 65 мас.%; и (c) содержаниеостаточногосомономера, представляющегособойакриламид, составляетменее 1000 ч./млн, причемсополимерв видеисходногораствораимеетсодержаниегеляприизмерениименее 50%, причемсодержаниегеляопределенопутемфильтрованияисходногораствора, полученногоиз 1,0 гполимераи 199 млдеионизированнойводыперемешиваниемсмесив течение 4 чпритемпературе 25°C, черезситос размеромячейки 190 мкм, промывкиостатка, задержанногофильтром, извлечения, высушиванияпри 110°C ивзвешиванияс последующимрасчетомпроцентногоотношениянерастворившегосяполимера (массасухогоостатка, задержанногофильтром [г]/массасухогополимерадофильтрации [г]), причемуказанныйпоменьшеймереодинсомономервыбранизакриламидаи указаннаяэтилен-ненасыщеннаякислотавыбранаизакриловойкислоты.

    ENHANCED DEWATERING OF MINING TAILINGS EMPLOYING ALUMINOSILICATE PRE-TREATMENT
    10.
    发明专利
    ENHANCED DEWATERING OF MINING TAILINGS EMPLOYING ALUMINOSILICATE PRE-TREATMENT 未知

    公开(公告)号：CA3077551A1

    公开(公告)日：2021-10-06

    申请号：CA3077551

    申请日：2020-04-06

    Applicant: BASF SE

    Inventor： CATLING MITCHELL LOUIS ,  SORTWELL EDWIN T ,  BOXILL LOIS ,  BELLWOOD JOHN

    IPC: B01D21/01 ,  B03B9/02

    Abstract: The invention relates to a process for separating solids from an aqueous slurry con-taining particulate material, which particulate material comprises sand particles and fines particles and contains clay particles, which aqueous suspension has a solids content of from 30 to 70% by weight and a sand to fines ratio of from greater than 1:1 to 3:1, which process comprises applying a treatment system to the aqueous slurry to cause flocculation of the particulate material, and subsequently separating the so formed flocculated particulate material as solids from the slurry, in which the treatment system comprises (a) at least one aluminosilicate nanoparticulate material, in which the molar ratio of aluminium to silicon is from 0.7:1 to 3:1; (b) at least one polymeric flocculant, which has an intrinsic viscosity of at least 5 dl/g (measured at 25 C in 1 M NaCI), and (c) optionally, at least one cationic coagulant. In addition, the present invention also encompasses a composition formed from an aqueous slurry containing particulate material, which particulate material comprises sand particles and fines particles and contains clay particles, which aqueous suspen-sion has a solids content of from 30 to 70% by weight and a sand to fines ratio of from greater than 1:1 to 3:1, which composition comprises flocculated particulate sol-ids and a treatment system in which the treatment system comprises: (a) at least one aluminosilicate nanoparticulate material, in which the molar ratio of aluminium to sili-con is from 0.7:1 to 3:1; (b) at least one polymeric flocculant, which has an intrinsic viscosity of at least 5 dl/g (measured at 25 C in 1 M NaCI), and (c) optionally, at least one cationic coagulant. Further, the invention relates to the aforementioned treatment system and its use. The invention provides effective dewatering of aqueous slurries containing particulate material having sand and fines components and containing clay particles employing a new treatment system to yield a dewatered particulate material.

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