公开(公告)号：US12059668B2

公开(公告)日：2024-08-13

申请号：US17446555

申请日：2021-08-31

Applicant: CALGON CARBON CORPORATION

Inventor： Jason P. Mazzoccoli ,  Ryan W. Walker ,  Walter G. Tramposch

IPC: B01J20/30 ,  B01J20/02 ,  B01J20/20 ,  C02F1/28 ,  C02F101/12 ,  C02F101/16

CPC classification number: B01J20/3085 ,  B01J20/0229 ,  B01J20/0237 ,  B01J20/0259 ,  B01J20/20 ,  B01J20/3078 ,  C02F1/283 ,  B01J2220/4806 ,  B01J2220/4825 ,  B01J2220/4881 ,  C02F2101/12 ,  C02F2101/16 ,  C02F2303/04

Abstract: Carbonaceous material that is activated to form precursor activated carbon is further enhanced by doping with copper, iron, and nitrogen and calcining. The carbonaceous material includes those obtained from coal, wood, or coconut shells. Methods of doping the activated carbon are described. The described treatment processes result in a sorbent material that has excellent performance in removing chloramine and similar compounds from fluids such as water that is intended for drinking.

公开(公告)号：US11911727B2

公开(公告)日：2024-02-27

申请号：US14922031

申请日：2015-10-23

Applicant: Carbonxt, Inc.

Inventor： David W. Mazyck ,  Regina Rodriguez ,  Christine Valcarce

IPC: B01J20/20 ,  B01D53/64 ,  B01J20/28 ,  B01J20/30 ,  B01J20/34 ,  B01D53/86 ,  B01J20/02

CPC classification number: B01D53/64 ,  B01D53/8665 ,  B01J20/0229 ,  B01J20/20 ,  B01J20/28009 ,  B01J20/3021 ,  B01J20/3416 ,  B01J20/3433 ,  B01D2253/102 ,  B01D2255/20738 ,  B01D2257/602 ,  B01D2259/814

Abstract: A magnetic adsorbent, including an admixture of an adsorbent and a magnetic material. A system for removing mercury from a fluid stream, the system including, a magnetic adsorbent injection unit for injecting an admixture of powdered activated carbon and magnetic material into the fluid stream; and a particulate removal unit. Also included are methods for removing mercury from a fluid stream and methods for producing a magnetic sorbent.

公开(公告)号：US11896948B2

公开(公告)日：2024-02-13

申请号：US18159769

申请日：2023-01-26

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Ni-Bin Chang ,  Debra Reinhart ,  A H M Anwar Sadmani

IPC: B01J20/02 ,  B01J20/12 ,  B01J20/10 ,  C02F1/28 ,  C02F101/16 ,  C02F101/36 ,  C02F101/10

CPC classification number: B01J20/0229 ,  B01J20/103 ,  B01J20/12 ,  C02F1/288 ,  C02F1/281 ,  C02F2101/105 ,  C02F2101/16 ,  C02F2101/36 ,  C02F2101/40

Abstract: A synergistic composition can be used to treat water containing nitrogen compounds and phosphorus compounds. The synergistic composition includes iron filings, clay particles, aluminum particles, and sand particles. The iron filings, clay particles, and aluminum particles act synergistically to remove nitrogen compounds and phosphorus compounds from water. Specifically, the clay particles attract the nitrogen compounds and the phosphorus compounds to be absorbed onto a surface of the iron filings and the clay particles. The aluminum particles react with the nitrogen compounds via an oxidation reaction to form ammonia compounds, and react with the phosphorus compounds to produce aluminum phosphate. As such, the synergistic relationship between the iron filings, clay particles, and aluminum particles remove nitrogen and phosphorus compounds from water and recover the compounds in usable forms, namely, ammonia and aluminum phosphate.

公开(公告)号：US11819839B2

公开(公告)日：2023-11-21

申请号：US17685234

申请日：2022-03-02

Applicant: CHEM32, LLC

Inventor： Douglas G. Wene ,  Soren Marklund

IPC: B01J8/02 ,  B01J37/20 ,  B01J23/72 ,  B01J23/745 ,  B01J20/30 ,  C01G1/12 ,  C01G3/12 ,  B01J20/02 ,  B01J23/40 ,  B01J23/48 ,  B01J23/70

CPC classification number: B01J8/0242 ,  B01J20/0229 ,  B01J20/0237 ,  B01J20/0285 ,  B01J20/3085 ,  B01J23/72 ,  B01J23/745 ,  B01J37/20 ,  C01G1/12 ,  C01G3/12 ,  B01J23/40 ,  B01J23/48 ,  B01J23/70 ,  B01J2220/4806

Abstract: Methods of sulfurizing metal containing particles in the absence of hydrogen are described. One method includes contacting a bed of metal containing particles with a gaseous stream comprising hydrogen sulfide and inert gas under reaction conditions sufficient to produce sulfided metal containing particles. The gaseous stream is introduced into a vertical reactor at an inlet positioned at the bottom portion of the reactor and any unreacted hydrogen sulfide and inert gas is removed at an outlet positioned above the inlet. The sulfided metal containing particles can be removed from the reactor and stored.

公开(公告)号：US20230219055A1

公开(公告)日：2023-07-13

申请号：US17728958

申请日：2022-04-25

Applicant: Central South University

Inventor： Qian Li ,  Rui Xu ,  Shengming Jin ,  Tao Jiang

IPC: B01J20/02 ,  C02F1/52 ,  C02F1/28 ,  B01J20/06 ,  B01J20/30 ,  B09C1/08

CPC classification number: B01J20/0292 ,  C02F1/5245 ,  C02F1/281 ,  B01J20/0229 ,  B01J20/0222 ,  B01J20/06 ,  B01J20/3085 ,  B01J20/3071 ,  B09C1/08 ,  C02F2101/22

Abstract: Disclosed are a functional material for synchronously stabilizing multiple metals and a preparation method thereof, and a method for rehabilitating soil or wastewater contaminated by heavy metals (metalloids). The preparation method includes: mixing a ferrous salt, a ferric salt, a manganous salt, water, a dispersing material, and a phosphate to obtain a first mixture, and subjecting the first mixture to a first precipitation reaction to obtain a first reaction mixture containing the phosphate; adjusting a pH value of the first reaction mixture containing the phosphate to 10-12 by adding an alkali thereto to obtain a second mixture, subjecting the second mixture to a second precipitation reaction to obtain a second reaction mixture; and subjecting the second reaction mixture to a solid-liquid separation to obtain a solid, washing the solid, and drying to obtain the functional material for synchronously stabilizing multiple metals.

公开(公告)号：US20190184368A1

公开(公告)日：2019-06-20

申请号：US16218741

申请日：2018-12-13

Applicant: Hoganas AB (Publ)

Inventor： Avinash Gore ,  Bo Hu ,  Sydney Luk

IPC: B01J20/02 ,  B01D15/00 ,  B01D15/20 ,  B01J20/28 ,  C02F1/28 ,  C02F1/50 ,  B01D39/20 ,  B01J20/30

CPC classification number: B01J20/0229 ,  B01D15/00 ,  B01D15/20 ,  B01D39/2034 ,  B01D2239/0407 ,  B01J20/02 ,  B01J20/0203 ,  B01J20/0233 ,  B01J20/28004 ,  B01J20/2803 ,  B01J20/28057 ,  B01J20/3078 ,  B01J2220/42 ,  C02F1/281 ,  C02F1/288 ,  C02F1/505 ,  C02F1/705 ,  C02F2101/12 ,  C02F2101/163 ,  C02F2101/166 ,  C02F2101/20 ,  C02F2101/30 ,  C02F2303/04

Abstract: A filtering medium, a method for the production thereof, the use of said filtering medium and a method for reducing the content of multiple contaminants simultaneously in fluids by means of said filtering medium, wherein said filtering medium has or includes at least one of the following: a mixture (A) containing a major part of an iron-based powder and a minor part of a silver powder, an iron-silver powder alloy (B), and an iron-based porous and permeable composite containing silver (C).

公开(公告)号：US20190030455A1

公开(公告)日：2019-01-31

申请号：US15660626

申请日：2017-07-26

Applicant: Agency for Science, Technology and Research

Inventor： Yi Ren ,  Sing Yang Chiam ,  Lai Mun Wong

IPC: B01D15/08 ,  B01J20/32 ,  B01J20/28 ,  B01J20/02 ,  C02F1/28

CPC classification number: B01D15/08 ,  B01J20/0229 ,  B01J20/28054 ,  B01J20/3236 ,  C02F1/281 ,  C02F1/288 ,  C02F2101/308 ,  C02F2305/08

Abstract: An adsorbent material is provided. The adsorbent material comprises a porous, non-particulate substrate comprising pores having a size in the range of about 1 μm to about 1 mm, and a conformal coating film deposited on the porous, non-particulate substrate, wherein the conformal coating film comprises topographical features having a feature size in the range of about 1 nm to about 1 μm. A method of preparing the adsorbent material and an adsorbent device are also provided.

公开(公告)号：US20180221692A1

公开(公告)日：2018-08-09

申请号：US15749820

申请日：2016-08-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew A. Rankin ,  Jeffrey R. Dahn ,  Xiaowei Ma

IPC: A62B23/02 ,  B01J20/02 ,  B01J20/06 ,  B01J20/28 ,  B01J20/30

CPC classification number: A62B23/02 ,  A62B19/00 ,  B01D53/02 ,  B01D53/0415 ,  B01D2253/1124 ,  B01D2253/25 ,  B01D2253/306 ,  B01D2253/308 ,  B01D2257/302 ,  B01D2257/406 ,  B01D2257/704 ,  B01D2257/708 ,  B01D2258/06 ,  B01D2259/4541 ,  B01J20/0229 ,  B01J20/06 ,  B01J20/28057 ,  B01J20/28061 ,  B01J20/28078 ,  B01J20/2808 ,  B01J20/28083 ,  B01J20/3007 ,  B01J20/3021 ,  B01J20/3028 ,  B01J20/3035 ,  B01J20/3085 ,  B01J2220/42 ,  C01G45/02 ,  C01P2002/54 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

Abstract: A respiratory protection filter includes filtration media. The filtration media includes an iron-doped manganese oxide material having an average pore size (BJH method) in a range from 1 to 4 nm and a surface area (BET) of at least 300 m2/g, or at least 350 m2/g, or at least 400 m2/g.

公开(公告)号：US10014088B2

公开(公告)日：2018-07-03

申请号：US15540393

申请日：2015-11-12

Applicant: EKSORB LTD

Inventor： Victor Pavlovich Remez

IPC: G21F9/20 ,  G21F9/06 ,  B01D39/14 ,  B01D46/00 ,  B01D15/00

CPC classification number: G21F9/06 ,  B01D15/00 ,  B01D39/14 ,  B01D46/00 ,  B01J20/0225 ,  B01J20/0229 ,  B01J20/0237 ,  B01J20/0281 ,  B01J20/0285 ,  B01J20/048 ,  B01J20/06 ,  B01J20/103 ,  B01J20/3028 ,  B01J2220/42 ,  B01J2220/603 ,  C02F1/281 ,  C02F1/5236 ,  C02F1/78 ,  C02F9/00 ,  C02F2101/006 ,  C02F2301/08 ,  G21C19/46 ,  G21F3/04 ,  G21F9/12 ,  G21F9/165 ,  G21F9/20 ,  Y02W30/883

Abstract: The invention relates to a technique for handling liquid radioactive waste from a nuclear fuel-energy cycle, and may be used in a process for processing liquid radioactive waste for maximally reducing the volume thereof and removing radionuclides by concentrating same in a solid phase. The aim is achieved by means of a method for processing liquid radioactive waste and for the recovery thereof, including waste oxidation, separating sludge, colloids and suspended particles from a liquid phase, and removing, from the liquid phase, radionuclides to be subsequently recovered using selective sorbents and filters; the method is characterized in that, prior to the stage for separating sludge, colloids and suspended particles from the liquid phase of the radioactive waste, selective sorbents in the form of powders are added and mixed into the liquid waste.

公开(公告)号：US20180071710A1

公开(公告)日：2018-03-15

申请号：US15805141

申请日：2017-11-07

Applicant: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

Inventor： Ruiping LIU ,  Zenglu QI ,  Huachun LAN ,  Lijun ZHU ,  Huijuan LIU ,  Jiuhui QU

IPC: B01J20/02 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  C02F1/28

CPC classification number: B01J20/0229 ,  B01J20/06 ,  B01J20/28009 ,  B01J20/28047 ,  B01J20/3085 ,  B01J20/3204 ,  B01J20/3236 ,  B01J2220/42 ,  C02F1/281 ,  C02F1/481 ,  C02F2101/105 ,  C02F2101/20

Abstract: A magnetic adsorbent, preparation method therefor and application thereof. The magnetic adsorbent is made by loading a weakly material with high adsorption capacity, an iron-based gel, onto a strongly magnetic ferrite material with low adsorption capacity by means of in-situ reaction. The magnetic adsorbent is used for removing heavy metal pollutants and phosphate pollutants from water.