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1. (WO2017093944) THERMOPLASTIC MATRIX OF BIODEGRADABLE POLYMERS FOR THE REMOVAL OF HEAVY METALS IN A CONTINUOUS PROCESS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/093944 International Application No.: PCT/IB2016/057279
Publication Date: 08.06.2017 International Filing Date: 01.12.2016
IPC:
C02F 1/28 (2006.01) ,C02F 1/58 (2006.01) ,C02F 1/62 (2006.01) ,B01J 20/22 (2006.01) ,B01J 20/24 (2006.01) ,B01J 20/26 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
28
by sorption
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
58
by removing specified dissolved compounds
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
58
by removing specified dissolved compounds
62
Heavy metal compounds
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
22
comprising organic material
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
22
comprising organic material
24
Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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
22
comprising organic material
26
Synthetic macromolecular compounds
Applicants:
UNIVERSIDAD AUTÓNOMA METROPOLITANA [MX/MX]; Prolongación Canal de Miramontes No. 3855, Col. Exhacienda San Juan de Dios 14387 Ciudad de México, MX
UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO [MX/MX]; Av. Universidad 3000 Circuito Interior, Ciudad Universitaria 04510 Ciudad de México, MX
Inventors:
SHIRAI MATSUMOTO, Concepción Keiko; MX
VELASCO GARDUÑO, Oscar; MX
GIMENO SECO, Miguel; MX
BERISTAÍN CARDOSO, Ricardo; MX
Agent:
CHAGOYA-CORTÉS, Héctor Elías; MX
BECERRIL-ORTA, Fernando; MX
CAAMAÑO-COCA, Enrique; MX
BECERRIL-CORTÉS, Rosa Elena Nuria; MX
AMARO-ALVARADO, Juan Carlos; MX
LÓPEZ-MARTÍNEZ, Ana Patricia; MX
Priority Data:
MX/a/2015/01665403.12.2015MX
Title (EN) THERMOPLASTIC MATRIX OF BIODEGRADABLE POLYMERS FOR THE REMOVAL OF HEAVY METALS IN A CONTINUOUS PROCESS
(ES) MATRIZ TERMOPLÁSTICA DE POLÍMEROS BIODEGRADABLES PARA LA REMOCIÓN DE METALES PESADOS EN PROCESO CONTINUO
(FR) MATRICE THERMOPLASTIQUE DE POLYMÈRES BIODÉGRADABLES POUR L’ÉLIMINATION DE MÉTAUX LOURDS DANS UN PROCESSUS CONTINU
Abstract:
(EN) The contamination of receiving water bodies by heavy metals due to anthropomorphic activities is of great significance to human health. There are metals that have a high capacity to form radicals that alter cellular functions when they exceed certain concentrations, for example, a prolonged exposure to concentrations greater than 20 mg of copper/L promotes the development of cancer. The invention relates to a thermoplastic matrix of chitosan (Ch) and polycaprolactone (PCL) for the removal of heavy metals in waste water, which, used in a ratio of 2:1 p/p respectively, offers a capacity of 62.5 mg Cu2+/g adsorbent (ads) in continuous processes with a HRT of less than 2 hours, and which permits various reuse cycles.
(ES) La contaminación de los cuerpos receptores de aguas por metales pesados debida a actividades antropomórficas es de gran importancia para la salud humana. Existen metales que poseen una alta capacidad de formar radicales alterando las funciones celulares cuando se exceden ciertas concentraciones, por ejemplo, una exposición prolongada a concentraciones por arriba de 20 mg de cobre/L favorece el desarrollo de cáncer. La presente invención se refiere a una matriz termoplástica de quitosano (Ch) y poli-ε-caprolactona (PCL) para la remoción de metales pesados en aguas residuales que utilizados en una relación 2:1 p/p; respectivamente, ofrece una capacidad de 62.5 mg Cu2+/g adsorbente (ads) en procesos continuos con un TRH menor a 2 horas, y que permite varios ciclos de reutilización.
(FR) La pollution des eaux réceptrices par les métaux lourds due à des activités anthropomorphiques est d’une grande importance pour la santé humaine. Il existe des métaux possédant une capacité élevée de former des radicaux modifiant les fonctions cellulaire au-delà de certaines concentrations, par exemple une exposition prolongée à des concentrations de cuivre supérieures à 20 mg/L favorise l’apparition de cancers. La présente invention concerne une matrice thermoplastique pour l’élimination de métaux lourds dans les eaux usées, à base de chitosane (Ch) et de poly-ε-caprolactone (PCL) qui, utilisés selon un rapport de 2:1 p/p respectivement, présentent une capacité de 62,5 mg Cu2+/g d’adsorbant (ads) dans des processus de traitement continus, avec un TRH inférieur à deux heures, et permettant divers cycles de réutilisation.
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, JP, KE, KG, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: Spanish (ES)
Filing Language: Spanish (ES)