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1. (WO2018036752) METHOD FOR PREPARING A NANO MGO ACTIVATED CARBON FOR ADSORBING HEAVY METALS
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Pub. No.: WO/2018/036752 International Application No.: PCT/EP2017/069304
Publication Date: 01.03.2018 International Filing Date: 31.07.2017
Chapter 2 Demand Filed: 01.06.2018
IPC:
B01J 20/04 (2006.01) ,B01J 20/20 (2006.01) ,B01J 20/32 (2006.01) ,B01J 20/30 (2006.01) ,C02F 1/28 (2006.01) ,C02F 101/20 (2006.01)
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
02
comprising inorganic material
04
comprising compounds of alkali metals, alkaline earth metals or magnesium
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
02
comprising inorganic material
20
comprising free carbon; comprising carbon obtained by carbonising processes
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
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
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
101
Nature of the contaminant
10
Inorganic compounds
20
Heavy metals or heavy metal compounds
Applicants:
UNILEVER PLC [GB/GB]; a company registered in England and Wales under company no. 41424 of Unilever House 100 Victoria Embankment London Greater London EC4Y 0DY, GB (JO, KN)
ZHEJIANG QINYUAN WATER TREATMENT S. T. CO., LTD. [CN/CN]; 358 Xingci Yi Road Hangzhou Bay New Zone Ningbo City, Zhejiang Province, CN (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KM, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW)
Inventors:
CHEN, Lei; CN
CHEN, Lianjie; CN
TU, Jinjun; CN
PENG, Kaiqin; CN
HUANG, Miaoquan; CN
ZHANG, Zhongqi; CN
Agent:
REIJNS, Tiemen, Geert, Pieter; NL
Priority Data:
201610734433.925.08.2016CN
Title (EN) METHOD FOR PREPARING A NANO MGO ACTIVATED CARBON FOR ADSORBING HEAVY METALS
(FR) PROCÉDÉ DE PRÉPARATION D'UN CHARBON ACTIF PAR NANO-MGO POUR L'ADSORPTION DE MÉTAUX LOURDS
Abstract:
(EN) The present invention relates to the field of water purification, and discloses a method for preparing a nano MgO activated carbon for adsorbing heavy metals. Specifically, is the method comprises the following steps: a. treating activated carbon with dilute nitric acid, then washing in water and anhydrous solvent, and drying at 60 to 80°C, to obtain treated activated carbon; b. providing an aqueous Mg(NO3)2 solution with deionized water as a solvent; c. adding the treated activated carbon obtained from step a to the aqueous Mg(NO3)2 solution obtained from step b, and stirring to mix evenly; d. preparing an aqueous urea solution, then dripping the aqueous urea solution into the solution processed in step c, and stirring to obtain a liquid mixture; e. drying the activated carbon processed in step d at 60 to 80°C.; and f. calcining the activated carbon processed in step e to obtain nano MgO activated carbon for adsorbing heavy metals. In the present invention, flower-like nano MgO is loaded on the surface or in the voids of activated carbon by a chemical deposition method; this can not only preserve the intrinsic characteristics of a nano material, but also enhance the stability thereof, and the heavy metals lead and cadmium in drinking water can be adsorbed efficiently.
(FR) La présente invention concerne le domaine de la purification de l'eau, et concerne un procédé de préparation d'un charbon actif par nano-MgO pour l'adsorption de métaux lourds. Spécifiquement, le procédé comprend les étapes suivantes : a. un traitement de charbon actif avec de l'acide nitrique dilué, puis le lavage dans de l'eau et un solvant anhydre, et le séchage à 60 à 80 °C, pour obtenir du charbon actif traité; b. la fourniture d'un Mg aqueux (NO3)2 solution avec de l'eau désionisée en tant que solvant; c. l'ajout du charbon actif traité obtenu à l'étape a à la solution aqueuse Mg (NO3)2 solution obtenue à l'étape b, et l'agitation pour mélanger uniformément; d. la préparation d'une solution aqueuse d'urée, puis égouttement de la solution aqueuse d'urée dans la solution traitée à l'étape c, puis agitation pour obtenir un mélange liquide; e. séchage de charbon actif traité à l'étape d à 60 à 80 °C; et f. la calcination du charbon actif traité à l'étape e pour obtenir du charbon actif par nano-MgO pour l'adsorption de métaux lourds. Dans la présente invention, du nano MgO de type fleur est chargé sur la surface ou dans les vides de charbon actif par un procédé de dépôt chimique; ceci peut non seulement préserver les caractéristiques intrinsèques d'un nanomatériau, mais également améliorer sa stabilité, et les métaux lourds le plomb et le cadmium dans de l'eau potable peuvent être adsorbés efficacement.
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)