Title:
WASTEWATER ADSORBENT, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/071355
Kind Code:
A1
Abstract:
Disclosed in the present invention are a wastewater adsorbent, and a preparation method therefor and the use thereof. The method comprises: mixing a carbon black powder and an ammonium salt solution, heating same for a hydrothermal reaction, followed by filtering, and washing the obtained filter residues with acid to obtain an ammonium-salt-modified carbon black; mixing and grinding a nickel-cobalt-manganese mixed salt and a sodium salt to obtain a mixture, mixing the mixture with an organic acid solution, evaporating same to remove water, subjecting same to a heating reaction in an inert atmosphere, and subjecting the reacted material to acid pickling to obtain a nickel-cobalt-manganese-sodium mixed salt; and mixing the nickel-cobalt-manganese-sodium mixed salt, the ammonium-salt-modified carbon black and a binding agent, and compacting, drying and heating same to obtain a multimetal-carbon-based adsorbent. The prepared multimetal-carbon-based adsorbent in the present invention has specific adsorption capacities for sodium, ammonium radicals and sulfate radicals; the carbon black powder serving as a substrate carbon material can adsorb multiple ions such as calcium, iron, manganese and cobalt all at the same time, such that diversified adsorption is achieved; in addition, the adsorbent can be reused after a desorption treatment and has a repeat adsorption capacity.
Inventors:
YU HAIJUN (CN)
LI AIXIA (CN)
XIE YINGHAO (CN)
ZHANG XUEMEI (CN)
ZHONG YINGSHENG (CN)
LI CHANGDONG (CN)
LI AIXIA (CN)
XIE YINGHAO (CN)
ZHANG XUEMEI (CN)
ZHONG YINGSHENG (CN)
LI CHANGDONG (CN)
Application Number:
PCT/CN2022/109232
Publication Date:
May 04, 2023
Filing Date:
July 29, 2022
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
International Classes:
B01J20/20; B01J20/30
Foreign References:
| CN104801272A | 2015-07-29 | |||
| CN111266084A | 2020-06-12 | |||
| CN106311134A | 2017-01-11 | |||
| CN114210303A | 2022-03-22 | |||
| CN104959110A | 2015-10-07 | |||
| CN102847432A | 2013-01-02 | |||
| JPH0269311A | 1990-03-08 | |||
| JP2015024405A | 2015-02-05 |
Other References:
ZHOU YAN, JIA ZIXIN, SHEN YITING, WEI LIYUAN, ZHAO SIYUAN, HAN YINGYING, CHEN PENG, XU CHANG, CUI XIANGMEI, SUN JINGWEN, OUYANG XI: "Ingenious construction of hierarchical spherical nanostructures by in-situ confining Ni–Co–Mn hydroxide nanosheets inside/outside hollow carbon nanospheres for high-performance hybrid supercapacitors", JOURNAL OF ENERGY STORAGE, ELSEVIER BV, NL, vol. 36, 1 April 2021 (2021-04-01), NL , pages 102380, XP093062472, ISSN: 2352-152X, DOI: 10.1016/j.est.2021.102380
JIANG, BINGCHUN ET AL.: "MOF-derived Co, Ni, Mn co-doped N-enriched hollow carbon for efficient", JOURNAL OF SOLID STATE CHEMISTRY, vol. 295, 23 December 2020 (2020-12-23), XP086484215, ISSN: 0022-4596, DOI: 10.1016/j.jssc.2020.121912
LI, ZIQING ET AL.: "Synthesis of Ni-doped Activated Carbon From Biomass for CrIV Catalytic Reduction", JOURNAL OF ENGINEERING THERMOPHYSICS, vol. 40, no. 10, 15 October 2019 (2019-10-15), pages 2432 - 2439, XP009545321, ISSN: 0253-231X
JIANG, BINGCHUN ET AL.: "MOF-derived Co, Ni, Mn co-doped N-enriched hollow carbon for efficient", JOURNAL OF SOLID STATE CHEMISTRY, vol. 295, 23 December 2020 (2020-12-23), XP086484215, ISSN: 0022-4596, DOI: 10.1016/j.jssc.2020.121912
LI, ZIQING ET AL.: "Synthesis of Ni-doped Activated Carbon From Biomass for CrIV Catalytic Reduction", JOURNAL OF ENGINEERING THERMOPHYSICS, vol. 40, no. 10, 15 October 2019 (2019-10-15), pages 2432 - 2439, XP009545321, ISSN: 0253-231X
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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