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1. (WO2018130394) REMOVING METAL IONS FROM AQUEOUS SYSTEMS WITH AN ACTIVE LAYER MEMBRANE
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Pub. No.: WO/2018/130394 International Application No.: PCT/EP2017/083871
Publication Date: 19.07.2018 International Filing Date: 20.12.2017
IPC:
B01D 69/08 (2006.01) ,B01J 20/32 (2006.01) ,B01D 69/12 (2006.01) ,B01D 71/56 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
08
Hollow fibre membranes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30
Processes for preparing, regenerating or reactivating
32
Impregnating or coating
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
12
Composite membranes; Ultra-thin membranes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
56
Polyamides, e.g. polyester-amides
Applicants:
BASF SE [DE/DE]; Carl-Bosch-Strasse 38 67056 Ludwigshafen am Rhein, DE
Inventors:
STAUDT, Claudia; CN
BERG, Peter; DE
HEIJNEN, Martin; DE
WIDJOJO, Natalia; SG
LOW, Jia Le; SG
JUNG, Marc Rudolf; DE
Agent:
BASF IP ASSOCIATION; BASF SE G-FLP - C006 67056 Ludwigshafen, DE
Priority Data:
17151236.112.01.2017EP
17189609.506.09.2017EP
Title (EN) REMOVING METAL IONS FROM AQUEOUS SYSTEMS WITH AN ACTIVE LAYER MEMBRANE
(FR) ÉLIMINATION D'IONS MÉTALLIQUES DE SYSTÈMES AQUEUX AVEC UNE MEMBRANE À COUCHE ACTIVE
Abstract:
(EN) A process for removing metal ions from aqueous systems is disclosed comprising the treatment of the aqueous system with a membrane M, wherein the membrane M has a molecular weight cut-off above 3,000 Da and comprises A.) a carrier membrane CM, wherein said carrier membrane CM has a porous structure wherein the average pore diameter on one surface is smaller than in the rest of the membrane, thus forming rejection layers R on one side of carrier membrane CM, and B.) an active layer A comprising at least one polymer P comprising a plurality of functional groups G capable of forming stable complexes with metal ions selected from Ca, Mg, Al, Cu, Ni, Pb, Zn, Sb, Co, Cr, Cd, Hg and/or Ag, wherein said active layer A is located on the surfaces of the rejection layers R of carrier membrane CM and throughout the porous structure of carrier membrane CM.
(FR) L'invention concerne un processus d'élimination d'ions métalliques de systèmes aqueux comprenant le traitement du système aqueux avec une membrane M, la membrane M ayant un poids moléculaire coupé au-dessus de 3 000 Da et comprenant A.) une membrane porteuse CM, ladite membrane porteuse CM ayant une structure poreuse dans laquelle le diamètre moyen de pore sur une surface est plus petit que dans le reste de la membrane, formant ainsi des couches de rejet R sur un côté de la membrane porteuse CM, et B.) une couche active A comprenant au moins un polymère P comprenant une pluralité de groupes fonctionnels G aptes à former des complexes stables avec des ions métalliques choisis parmi Ca, Mg, Al, Cu, Ni, Pb, Zn, Sb, Co, Cr, Cd, Hg et/ou Ag, ladite couche active a étant située sur les surfaces des couches de rejet R de la membrane porteuse CM et dans toute la structure poreuse de la membrane porteuse CM.
Designated States: 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)