CA3051593A1 - Chloramine and chlorine removal material and methods for making the same - Google Patents

Chloramine and chlorine removal material and methods for making the same Download PDF

Info

Publication number
CA3051593A1
CA3051593A1 CA3051593A CA3051593A CA3051593A1 CA 3051593 A1 CA3051593 A1 CA 3051593A1 CA 3051593 A CA3051593 A CA 3051593A CA 3051593 A CA3051593 A CA 3051593A CA 3051593 A1 CA3051593 A1 CA 3051593A1
Authority
CA
Canada
Prior art keywords
sorbent
nitrogen
feedstock
chloramine
chlorine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CA3051593A
Other languages
English (en)
French (fr)
Inventor
Jason MAZZOCCOLI
Walter G. Tramposch
Ryan Walker
Robert H. Vaughn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Calgon Carbon Corp
Original Assignee
Calgon Carbon Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Calgon Carbon Corp filed Critical Calgon Carbon Corp
Publication of CA3051593A1 publication Critical patent/CA3051593A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/18—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
    • B01J31/0235—Nitrogen containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/12—Halogens or halogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/18—Removal of treatment agents after treatment
    • C02F2303/185—The treatment agent being halogen or a halogenated compound
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Water Treatment By Sorption (AREA)
  • Catalysts (AREA)
CA3051593A 2017-02-13 2018-02-13 Chloramine and chlorine removal material and methods for making the same Pending CA3051593A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762458371P 2017-02-13 2017-02-13
US62/458,371 2017-02-13
PCT/US2018/017973 WO2018148719A1 (en) 2017-02-13 2018-02-13 Chloramine and chlorine removal material and methods for making the same

Publications (1)

Publication Number Publication Date
CA3051593A1 true CA3051593A1 (en) 2018-08-16

Family

ID=63106639

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3051593A Pending CA3051593A1 (en) 2017-02-13 2018-02-13 Chloramine and chlorine removal material and methods for making the same

Country Status (8)

Country Link
US (2) US10702853B2 (enExample)
EP (1) EP3579949A4 (enExample)
JP (1) JP7269695B2 (enExample)
KR (1) KR102511171B1 (enExample)
CN (1) CN110312564B (enExample)
CA (1) CA3051593A1 (enExample)
MX (1) MX2019009611A (enExample)
WO (1) WO2018148719A1 (enExample)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3052063A1 (en) 2017-01-31 2018-08-09 Calgon Carbon Corporation Sorbent devices
US10702853B2 (en) * 2017-02-13 2020-07-07 Calgon Carbon Corporation Chloramine and chlorine removal material and methods for making the same
US10953386B2 (en) * 2017-12-29 2021-03-23 Mannon Water (Singapore) PTE. LTD. Filtration media for removing chloramine, chlorine, and ammonia, and method of making the same
JP7679158B2 (ja) 2018-02-13 2025-05-19 カルゴン カーボン コーポレーション 化学的吸着剤の酸化方法およびそれにより製造された吸着剤
US11697580B2 (en) 2018-08-01 2023-07-11 Calgon Carbon Corporation Apparatus for hydrocarbon vapor recovery
WO2020028845A1 (en) 2018-08-02 2020-02-06 Calgon Carbon Corporation Sorbent devices
US11697090B2 (en) 2018-08-02 2023-07-11 Calgon Carbon Corporation Sorbent devices
CN109107533A (zh) * 2018-10-11 2019-01-01 中喜（宁夏）新材料有限公司 玉米秸秆石墨烯活性炭制备工艺
US10882744B2 (en) * 2018-11-15 2021-01-05 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Purification of hydrogen
CN113727774A (zh) 2019-04-03 2021-11-30 卡尔冈碳素公司 全氟烷基和多氟烷基吸着剂材料和使用方法
CN110368917B (zh) * 2019-07-16 2022-04-26 常州大学 一种以石蜡油脱色废土制备高效吸附材料的方法及其应用
WO2021016362A1 (en) 2019-07-22 2021-01-28 Calgon Carbon Corporation Textured sorbent sheets, assemblies containing them, and molds for making same
CN114364870B (zh) 2019-08-08 2024-08-20 卡尔冈碳素公司 用于进气口的吸着剂装置
CN111821945A (zh) * 2020-07-07 2020-10-27 美埃(中国)环境科技股份有限公司 一种去除空气中二氧化硫和硫化氢气体的活性炭改性方法
KR20230038260A (ko) 2020-07-14 2023-03-17 칼곤 카본 코포레이션 유체로부터 pfas를 제거하기 위한 고 용적 요오드가 및 당밀가를 갖는 수착제 및 그 제조 및 사용 방법
WO2022047504A1 (en) * 2020-08-31 2022-03-03 Calgon Carbon Corporation Copper, iron, and nitrogen treated sorbent and method for making same
EP4204123A4 (en) * 2020-08-31 2025-05-21 Calgon Carbon Corporation Copper and nitrogen treated sorbent and process for its production
CA3189609A1 (en) * 2020-08-31 2022-03-03 Calgon Carbon Corporation Iron and nitrogen treated sorbent and method for making same
US12281028B2 (en) 2020-12-18 2025-04-22 Green Things, Llc Water filter medium container
CN113477228B (zh) * 2021-07-30 2022-02-25 中国环境科学研究院 一种接枝负载改性生物炭的制备方法及应用
CN114105293A (zh) * 2021-09-28 2022-03-01 广东酌希生态环境科技有限公司 一种农村污水处理方法
CN113880073B (zh) * 2021-10-26 2022-12-16 华南理工大学 一种木质素基碳纳米管及其制备方法
CN116078351B (zh) * 2023-01-13 2024-07-19 深圳玉衡环境科技有限公司 一种室内空气处理药剂的制备方法及室内空气处理药剂
CN116351398B (zh) * 2023-03-31 2024-08-16 中国科学院生态环境研究中心 用于去除2-mib的氮改性活性炭及其制备方法和应用
WO2024254150A1 (en) * 2023-06-07 2024-12-12 Baxter International Inc. Method and use of a graphene oxide membrane for removing at least a portion of one or more disinfectants from a liquid feed
WO2025132084A1 (en) 2023-12-21 2025-06-26 Act&Sorb B.V. Mesoporous activated carbon
EP4624042A1 (en) 2024-03-28 2025-10-01 Act&Sorb B.V. Mesoporous activated carbon
CN117942934A (zh) * 2023-12-22 2024-04-30 湖北华强科技股份有限公司 一种综合防护有机无机及酸碱性气体浸渍炭吸附剂的制备方法

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1172731A (en) 1979-09-27 1984-08-14 John W. Hoard Method for improving fuel control in an internal combustion engine
US4624937A (en) 1984-05-10 1986-11-25 Monsanto Company Process for removing surface oxides from activated carbon catalyst
DE3620425C1 (de) 1986-06-18 1987-06-19 Bergwerksverband Gmbh Verfahren zur Herstellung eines Aktivkohlekatalysators
JPS6458331A (en) 1987-08-31 1989-03-06 Mitsui Mining Co Ltd Denitration method for exhaust gas
US5338458A (en) 1993-01-21 1994-08-16 Calgon Carbon Corporation Method for removing chloramine with catalytic carbon
US5356849A (en) 1993-01-21 1994-10-18 Calgon Carbon Corporation Catalytic carbon
US5444031A (en) * 1993-01-21 1995-08-22 Calgon Carbon Corporation Process for making catalytic carbon
JPH10296043A (ja) * 1997-04-28 1998-11-10 Toshiba Corp 空気調和装置用ガス吸着フィルタ
US6342129B1 (en) 1998-05-14 2002-01-29 Calgon Carbon Corporation Process for production of carbonaceous chars having catalytic activity
US6706194B2 (en) * 2002-05-08 2004-03-16 Meadwestvaco Corporation Method for removal of chloramines from drinking water
US20040124152A1 (en) 2002-05-08 2004-07-01 Meadwestvaco Corporation Catalytic activated carbon for removal of chloramines from water
KR101399674B1 (ko) * 2005-09-27 2014-05-26 리써치 트라이앵글 인스티튜트 탄화수소로부터 황을 제거하기 위한 재생가능한 흡착제 및이의 제조방법 및 그 용도
US7628923B2 (en) * 2006-09-25 2009-12-08 Calgon Carbon Corporation Carbon pre-treatment for the stabilization of pH in water treatment
US7629285B2 (en) 2006-10-31 2009-12-08 University Of South Carolina Carbon-based composite electrocatalysts for low temperature fuel cells
CN101108304A (zh) * 2007-07-17 2008-01-23 华东理工大学 一种吸波催化剂的制备及其在净化烟气中的应用
JP2009056449A (ja) * 2007-08-08 2009-03-19 Eiko:Kk 低級アルデヒド類の吸着剤
JP2011521775A (ja) * 2008-05-14 2011-07-28 スリーエム イノベイティブ プロパティズ カンパニー ろ過材、及びそれを含む水ろ過システム
EP2138043B1 (en) 2008-06-19 2015-04-29 Unilever N.V. Composition and process for the purification of contaminated water
EP2482970B1 (en) * 2009-09-28 2018-08-08 Calgon Carbon Corporation Sorbent formulation for removal of mercury from flue gas
CN101757902A (zh) * 2010-01-12 2010-06-30 海盐华强树脂有限公司 一种含活性炭涂层复合型光催化剂的制备方法
US9359390B2 (en) 2010-03-31 2016-06-07 Kuraray Chemical Co., Ltd. Activated carbon and use therefor
CN102553641B (zh) 2010-12-08 2014-02-12 中国中化股份有限公司 一种含氮活性炭催化剂的制备方法
EP2478957A1 (en) 2011-01-25 2012-07-25 Norit Nederland B.V. Production of catalytically active activated carbon
WO2013096281A1 (en) 2011-12-22 2013-06-27 3M Innovative Properties Company Filtration medium comprising a thermolysis product of a carbon oxychalcogenide and a metal salt, method of removing chloramine with this filtration medium and method of making this filtration medium
US9095840B2 (en) 2012-01-03 2015-08-04 The Penn State Research Foundation Nitrogen-containing activated carbon material
US20130330257A1 (en) * 2012-06-11 2013-12-12 Calgon Carbon Corporation Sorbents for removal of mercury
US9073039B2 (en) 2012-07-13 2015-07-07 Adavanced Fuel Research, Inc. Carbon sorbent for reversible ammonia sorption
PL224207B1 (pl) 2012-08-16 2016-11-30 Univ Marii Curie Skłodowskiej Sposób wytwarzania porowatych sorbentów węglowych
US20140186625A1 (en) 2012-12-28 2014-07-03 Ada Carbon Solutions, Llc Composition for acid gas tolerant removal of mercury from a flue gas
US9308518B2 (en) * 2013-02-14 2016-04-12 Calgon Carbon Corporation Enhanced sorbent formulation for removal of mercury from flue gas
US10130930B2 (en) 2013-03-06 2018-11-20 Midwest Energy Emissions Corp Sorbent comprising carbon and nitrogen and methods of using the same
US20160016820A1 (en) 2013-03-12 2016-01-21 3M Innovative Properties Company Removal of organic compounds and chloramine from aqueous solutions
EP2969963A1 (en) 2013-03-12 2016-01-20 3M Innovative Properties Company Removal of chlorine and/or chloramine from aqueous solutions
US9120079B1 (en) 2013-03-15 2015-09-01 Tda Research, Inc. High capacity carbon dioxide sorbent
CN103566882B (zh) * 2013-09-29 2016-03-30 安徽金叶炭素科技有限公司 一种高吸附性改性活性炭及其制备方法
CN103626150A (zh) 2013-11-20 2014-03-12 南京工程学院 一种含氮多孔炭的制备方法
CN103751943B (zh) * 2014-01-13 2020-10-13 湖北及安盾消防科技有限公司 一种含有含氮类有机化合物的灭火组合物
CN104368309B (zh) 2014-11-25 2016-08-17 湖南大学 负载表面活性剂茶籽壳活性炭及其制备方法和应用
WO2016112380A1 (en) * 2015-01-09 2016-07-14 Calgon Carbon Corporation Carbon sorbents for the removal of nitrogen oxides and methods for making the same
JP7106275B2 (ja) 2015-06-01 2022-07-26 カルゴン カーボン コーポレーション 粗バイオガスを精製する方法及びバイオガス精製システム
KR101896319B1 (ko) 2016-02-25 2018-10-04 현대자동차 주식회사 활성탄소 및 이의 제조방법
US10702853B2 (en) * 2017-02-13 2020-07-07 Calgon Carbon Corporation Chloramine and chlorine removal material and methods for making the same
JP7679158B2 (ja) 2018-02-13 2025-05-19 カルゴン カーボン コーポレーション 化学的吸着剤の酸化方法およびそれにより製造された吸着剤

Also Published As

Publication number Publication date
KR102511171B1 (ko) 2023-03-20
US20180229217A1 (en) 2018-08-16
WO2018148719A1 (en) 2018-08-16
EP3579949A4 (en) 2020-12-23
EP3579949A1 (en) 2019-12-18
CN110312564A (zh) 2019-10-08
US10702853B2 (en) 2020-07-07
US20200398254A1 (en) 2020-12-24
MX2019009611A (es) 2019-10-14
JP7269695B2 (ja) 2023-05-09
JP2020508852A (ja) 2020-03-26
US12558672B2 (en) 2026-02-24
CN110312564B (zh) 2021-11-16
KR20190119614A (ko) 2019-10-22

Similar Documents

Publication Publication Date Title
US12558672B2 (en) Chloramine and chlorine removal material and methods for making the same
US12083502B2 (en) Chemical sorbent oxidation method and sorbents made therefrom
Allen et al. The production and characterisation of activated carbons: a review
JP2023538505A (ja) 銅および窒素処理された吸着剤およびその製造方法
US12059668B2 (en) Copper, iron, and nitrogen treated sorbent and method for making same
US10155673B2 (en) Removal of chloramine and mercury from aqueous solutions
JP2023538889A (ja) 鉄および窒素処理された吸着剤およびその製造方法
HK40014286B (en) Chloramine and chlorine removal material and methods for making the same
HK40014286A (en) Chloramine and chlorine removal material and methods for making the same
HK40093403A (zh) 铜、铁和氮处理的吸附剂及其制备方法
HK40093398A (zh) 铜和氮处理的吸附剂及其制备方法
HK40094698A (zh) 铁和氮处理的吸附剂及其制备方法
Ekpete ACTIVATED CARBON, TYPES, PREPARATION AND APPLICATIONS.

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20220928

EEER Examination request

Effective date: 20220928

EEER Examination request

Effective date: 20220928

EEER Examination request

Effective date: 20220928

EEER Examination request

Effective date: 20220928

MFA Maintenance fee for application paid

Free format text: FEE DESCRIPTION TEXT: MF (APPLICATION, 7TH ANNIV.) - STANDARD

Year of fee payment: 7

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-2-2-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20250127

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-2-2-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT DETERMINED COMPLIANT

Effective date: 20250127

Free format text: ST27 STATUS EVENT CODE: A-2-2-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL

Effective date: 20250127

D15 Examination report completed

Free format text: ST27 STATUS EVENT CODE: A-2-2-D10-D15-D126 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: EXAMINER'S REPORT

Effective date: 20250214

P11 Amendment of application requested

Free format text: ST27 STATUS EVENT CODE: A-2-2-P10-P11-P100 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: AMENDMENT RECEIVED - RESPONSE TO EXAMINER'S REQUISITION

Effective date: 20250605

W00 Other event occurred

Free format text: ST27 STATUS EVENT CODE: A-2-2-W10-W00-W111 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: CORRESPONDENT DETERMINED COMPLIANT

Effective date: 20250606

P11 Amendment of application requested

Free format text: ST27 STATUS EVENT CODE: A-2-2-P10-P11-P102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: AMENDMENT DETERMINED COMPLIANT

Effective date: 20250723

P13 Application amended

Free format text: ST27 STATUS EVENT CODE: A-2-2-P10-P13-X000 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: APPLICATION AMENDED

Effective date: 20250723