[go: up one dir, main page]

NO20012804L - Electrolysis cell, processes for purifying aqueous solutions and synthesis of chemicals - Google Patents

Electrolysis cell, processes for purifying aqueous solutions and synthesis of chemicals

Info

Publication number
NO20012804L
NO20012804L NO20012804A NO20012804A NO20012804L NO 20012804 L NO20012804 L NO 20012804L NO 20012804 A NO20012804 A NO 20012804A NO 20012804 A NO20012804 A NO 20012804A NO 20012804 L NO20012804 L NO 20012804L
Authority
NO
Norway
Prior art keywords
chemicals
synthesis
processes
aqueous solutions
electrolysis cell
Prior art date
Application number
NO20012804A
Other languages
Norwegian (no)
Other versions
NO20012804D0 (en
Inventor
Guillermo Daniel Zappi
Norman L Weinberg
Original Assignee
Zappi Water Purification Syste
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
Priority claimed from US09/206,924 external-priority patent/US6315886B1/en
Application filed by Zappi Water Purification Syste filed Critical Zappi Water Purification Syste
Publication of NO20012804L publication Critical patent/NO20012804L/en
Publication of NO20012804D0 publication Critical patent/NO20012804D0/en

Links

Classifications

    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46128—Bipolar electrodes
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46157—Perforated or foraminous electrodes
    • 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
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/163—Nitrates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4611—Fluid flow
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46155—Heating or cooling
    • 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
    • C02F2303/04—Disinfection
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/02—Specific form of oxidant
    • C02F2305/026—Fenton's reagent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
NO20012804A 1998-12-07 2001-06-07 Electrolysis cell, processes for purifying aqueous solutions and synthesis of chemicals NO20012804D0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/206,924 US6315886B1 (en) 1998-12-07 1998-12-07 Electrolytic apparatus and methods for purification of aqueous solutions
US09/433,686 US6328875B1 (en) 1998-12-07 1999-11-04 Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals
PCT/US1999/028869 WO2000034184A1 (en) 1998-12-07 1999-12-06 Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals

Publications (2)

Publication Number Publication Date
NO20012804L true NO20012804L (en) 2001-06-07
NO20012804D0 NO20012804D0 (en) 2001-06-07

Family

ID=26901806

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20012804A NO20012804D0 (en) 1998-12-07 2001-06-07 Electrolysis cell, processes for purifying aqueous solutions and synthesis of chemicals

Country Status (23)

Country Link
EP (1) EP1150921A4 (en)
JP (1) JP2002531704A (en)
CN (1) CN1329576A (en)
AP (1) AP2001002197A0 (en)
AU (1) AU767548B2 (en)
BG (1) BG105679A (en)
BR (1) BR9915992A (en)
CA (1) CA2355346C (en)
CZ (1) CZ20012002A3 (en)
EE (1) EE200100303A (en)
HU (1) HUP0104664A2 (en)
ID (1) ID30239A (en)
IL (1) IL143529A0 (en)
IS (1) IS5954A (en)
MX (1) MXPA01005705A (en)
NO (1) NO20012804D0 (en)
NZ (1) NZ512645A (en)
OA (1) OA11806A (en)
PL (1) PL348151A1 (en)
SK (1) SK7672001A3 (en)
TR (1) TR200101659T2 (en)
TW (1) TW490444B (en)
WO (1) WO2000034184A1 (en)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002531704A (en) * 1998-12-07 2002-09-24 ザッピ・ウォーター・ピューリフィケーション・システムズ・インコーポレーテッド Electrolytic apparatus, method for purifying aqueous solution, and method for synthesizing chemical substance
GB9920532D0 (en) 1999-09-01 1999-11-03 Univ Abertay Method
US7048842B2 (en) 2001-06-22 2006-05-23 The Procter & Gamble Company Electrolysis cell for generating chlorine dioxide
US20030042134A1 (en) 2001-06-22 2003-03-06 The Procter & Gamble Company High efficiency electrolysis cell for generating oxidants in solutions
KR100567182B1 (en) * 2001-02-15 2006-04-03 더 프록터 앤드 갬블 캄파니 High efficiency electroless cell for producing oxidant in solution
US6921743B2 (en) 2001-04-02 2005-07-26 The Procter & Gamble Company Automatic dishwashing compositions containing a halogen dioxide salt and methods for use with electrochemical cells and/or electrolytic devices
EP1254972A1 (en) * 2001-05-01 2002-11-06 CSEM Centre Suisse d'Electronique et de Microtechnique SA Modular electrochemical cell
US7413637B2 (en) 2002-05-17 2008-08-19 The Procter And Gamble Company Self-contained, self-powered electrolytic devices for improved performance in automatic dishwashing
US9187347B2 (en) 2002-11-19 2015-11-17 Xogen Technologies Inc. Treatment of a waste stream through production and utilization of oxyhydrogen gas
DE60331110D1 (en) * 2002-11-19 2010-03-11 Xogen Technologies Inc Waste water treatment by generation and consumption of H2 and O2 gas
US9296629B2 (en) 2002-11-19 2016-03-29 Xogen Technologies Inc. Treatment of a waste stream through production and utilization of oxyhydrogen gas
US7837882B2 (en) * 2002-11-19 2010-11-23 Xogen Technologies Inc. Treatment of a waste stream through production and utilization of oxyhydrogen gas
DE102004015680A1 (en) * 2004-03-26 2005-11-03 Condias Gmbh Electrode arrangement for electrochemical treatment of low conductivity liquids
DE102004023161A1 (en) * 2004-05-07 2005-11-24 Eilenburger Elektrolyse- Und Umwelttechnik Gmbh Electrolysis cell with multilayer expanded metal cathodes
US20060086622A1 (en) 2004-10-21 2006-04-27 Trust Sterile Services Ltd. Apparatus and method for electrolytic cleaning
CN101475244B (en) * 2009-01-13 2011-09-28 长沙创享环保科技有限公司 Electrochemical device for processing heavy metal wastewater
JP4750873B2 (en) * 2009-04-22 2011-08-17 有限会社コメット Method for treating waste liquid containing phenols
CA2762209A1 (en) * 2009-05-20 2010-11-25 Lakehead University Method and system for combined photocatalytic and electrochemical wastewater remediation
JP5113892B2 (en) 2010-04-30 2013-01-09 アクアエコス株式会社 Membrane-electrode assembly, electrolytic cell using the same, ozone water production apparatus, ozone water production method, sterilization method, and waste water / waste liquid treatment method
TW201207155A (en) * 2010-08-11 2012-02-16 Prometheus Energy Technology Co Electrolysis device for producing oxyhydrogen gas
US20130168262A1 (en) * 2010-09-21 2013-07-04 Transfert Plus, S.E.C. Method and system for electrochemical removal of nitrate and ammonia
KR20130135885A (en) 2010-12-10 2013-12-11 유니버시티 오브 울롱공 Multi-layer water-splitting devices
WO2012142435A2 (en) * 2011-04-15 2012-10-18 Advanced Diamond Technologies, Inc. Electrochemical system and method for on-site generation of oxidants at high current density
KR101679325B1 (en) * 2011-05-18 2016-11-24 현대중공업 주식회사 Electrolyzer Structure of Electrolysis Apparatus
RU2603772C2 (en) 2012-06-12 2016-11-27 Монаш Юниверсити Breathable electrode and method for use in water splitting
EP3118350A1 (en) * 2012-06-12 2017-01-18 Monash University Gas permeable electrode and method of manufacture
BR112016002269A2 (en) 2013-07-31 2017-08-01 Aquahydrex Pty Ltd method and electrochemical cell to manage electrochemical reactions
US10323328B2 (en) 2015-06-19 2019-06-18 Bio-H2-Gen Inc. Method for producing hydrogen gas from aqueous hydrogen sulphide
WO2017132229A1 (en) * 2016-01-29 2017-08-03 Lopez Noe Joshua Electrolytic treater and method for treating water
CN109891002B (en) * 2016-11-22 2021-03-12 旭化成株式会社 Electrode for electrolysis
TWI633064B (en) * 2017-06-05 2018-08-21 財團法人工業技術研究院 Electrolytic reduction module unit and water purification device
CN110869323A (en) * 2017-07-12 2020-03-06 安克信水技术公司 Method of operating a wastewater treatment system
TWI648431B (en) * 2018-01-03 2019-01-21 莊政霖 Electrolysis device
CA3107792A1 (en) * 2018-08-23 2020-02-27 Evoqua Water Technologies Llc System and method for electrochemical oxidation of polyfluoroalkyl substances in water
EP3887577B1 (en) * 2018-11-30 2022-12-07 Sedo Engineering SA By-products (impurity) removal
IT201800021490A1 (en) * 2018-12-31 2020-07-01 Leto Barone Giovanni Electrolytic cell for the production of oxyhydrogen gas.
JP2022519575A (en) 2019-02-01 2022-03-24 アクアハイドレックス， インコーポレイテッド Electrochemical system with confined electrolyte
US11939687B2 (en) * 2019-02-22 2024-03-26 Kogakuin University Water electrolysis apparatus, and sterilization/cleaning method and method for decomposing/removing harmful substance, each using water electrolysis apparatus
BR102019017102A2 (en) 2019-08-16 2021-03-02 Charles Adriano Duvoisin system and electropurifying method of effluents, through the directed electron trap and corresponding equipment
WO2021252965A1 (en) * 2020-06-12 2021-12-16 Pani Clean, Inc. Hybrid electrodialysis and electrolysis systems and processes
CN112408554B (en) * 2020-11-11 2022-11-15 北京工业大学 A floating double oxygen source gas diffusion electrode device and its application
BR112023025921A2 (en) * 2021-06-21 2024-02-27 Adriano Duvoisin Charles SYSTEM AND METHOD FOR ELECTRO-POWERING WATER AND AQUEOUS SOLUTIONS FOR AGRICULTURE, ELECTRO-POWERED FLUID AND CORRESPONDING USE
JP7362694B2 (en) * 2021-06-30 2023-10-17 日華化学株式会社 Kraft lignin, color developer for heat-sensitive recording and heat-sensitive recording material
CN115337965B (en) * 2022-07-07 2024-12-17 山东东岳高分子材料有限公司 Experimental perfluorinated ion exchange membrane hydrolysis transformation reaction device
KR20240027535A (en) * 2022-08-23 2024-03-04 인디언 오일 코퍼레이션 리미티드 Reusable metal substrates for bi-facial photoactive semiconductor materials for solar water splitting
DE102023123611A1 (en) * 2023-09-01 2025-03-06 Schneider Gmbh & Co. Kg Electrode arrangement for electro-chemical treatment of liquids
WO2025151163A1 (en) * 2024-01-11 2025-07-17 Air Products And Chemicals, Inc. Apparatus and process for electrolyte solution purification for hydrogen production via electrolysis

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399289A (en) * 1940-06-15 1946-04-30 Aqua Electric Corp Ltd Apparatus for purifying liquids
US3859195A (en) * 1972-09-20 1975-01-07 Du Pont Apparatus for electrochemical processing
DE2502167C2 (en) * 1975-01-21 1982-09-23 Basf Ag, 6700 Ludwigshafen Electrochemical cell with bipolar electrodes
US4125439A (en) * 1977-05-31 1978-11-14 National Research Development Corporation Electrochemical cells and methods of electrolysis
US4236990A (en) * 1979-05-29 1980-12-02 King Arthur S Treater with self-cleaning electrodes
CH671408A5 (en) * 1987-02-20 1989-08-31 Bbc Brown Boveri & Cie
FR2628757B1 (en) * 1988-03-17 1992-01-17 Atochem METHOD FOR REGULATING AN ELECTROLYSIS CELL, ITS APPLICATION TO THE PRODUCTION OF CHLORINE AND SODA BY ELECTROLYSIS OF SODIUM CHLORIDE IN SOLUTION
GB8805991D0 (en) * 1988-03-14 1988-04-13 Ici Plc Electrochemical cell
DE69008640T2 (en) * 1989-07-24 1994-08-18 Nagakazu Furuya Decomposition of pollutants.
ATE170251T1 (en) * 1991-10-01 1998-09-15 Michael A Silveri ELECTROLYTIC SWIMMING POOL CLEANER
US5376240A (en) * 1991-11-04 1994-12-27 Olin Corporation Process for the removal of oxynitrogen species for aqueous solutions
NO931689L (en) * 1993-05-10 1994-11-11 Sigurd Fongen Apparatus for electrochemical synthesis for "in-line" and "off-line" bleaching, oxidation and disinfection of organic substances in liquids.
ES2080686B1 (en) 1994-02-16 1996-10-16 S E De Carburos Metalicos S A ELECTROLYTIC DEPURATION PROCESS AND EQUIPMENT IN CONTAMINATED WASTEWATER USING OXYGEN CATODES.
DE19512955C2 (en) * 1995-04-10 1998-09-10 Ernst A Prof Dr Stadlbauer Water treatment process for the reductive conversion of nitrate and nitrite into elemental nitrogen
JP2002531704A (en) * 1998-12-07 2002-09-24 ザッピ・ウォーター・ピューリフィケーション・システムズ・インコーポレーテッド Electrolytic apparatus, method for purifying aqueous solution, and method for synthesizing chemical substance

Also Published As

Publication number Publication date
IS5954A (en) 2001-05-29
PL348151A1 (en) 2002-05-06
WO2000034184A1 (en) 2000-06-15
IL143529A0 (en) 2002-04-21
EE200100303A (en) 2002-08-15
TR200101659T2 (en) 2001-10-22
ID30239A (en) 2001-11-15
JP2002531704A (en) 2002-09-24
NZ512645A (en) 2002-10-25
SK7672001A3 (en) 2001-12-03
CZ20012002A3 (en) 2002-05-15
BG105679A (en) 2002-06-28
AU767548B2 (en) 2003-11-13
TW490444B (en) 2002-06-11
NO20012804D0 (en) 2001-06-07
EP1150921A1 (en) 2001-11-07
AP2001002197A0 (en) 2001-09-30
CA2355346C (en) 2004-07-20
AU3112000A (en) 2000-06-26
EP1150921A4 (en) 2003-06-18
HUP0104664A2 (en) 2002-03-28
CA2355346A1 (en) 2000-06-15
CN1329576A (en) 2002-01-02
OA11806A (en) 2005-08-10
MXPA01005705A (en) 2003-07-14
BR9915992A (en) 2001-09-04

Similar Documents

Publication Publication Date Title
NO20012804L (en) Electrolysis cell, processes for purifying aqueous solutions and synthesis of chemicals
NO20010231D0 (en) Chemical Purification and Solvent Process
FI974575L (en) Method for bleaching chemical pulp and use of bleaching solution
DE69828821D1 (en) WATER TREATMENT PROCESS
DE69931411D1 (en) Floating autonomous water purifier and water purification method
ID20211A (en) HYDROGEN PRODUCTION METHOD USING SOLID ELECTROLITE MEMBRANE
IS5936A (en) A new granule, its method of production and a polyunit composition containing it
DK0984826T4 (en) Autothermal reactor comprising an oxygen ion conducting dense ceramic membrane and process utilizing the autothermal reactor to produce synthesis gas
NO994196L (en) Ceramic membrane for endothermic reactions
NO20011826L (en) High pressure electrolysis modules
NO20014892L (en) Multistage electromagnetic separator for the purification of cells, chemicals and protein structures
FR2796084B1 (en) CHEMICAL PLATING PROCESS AND SOLUTION
DE59902179D1 (en) ELECTROCHEMICAL SYNTHESIS OF PERFLUORALKYLFLUOROPHOSPHORANES
NO20025241D0 (en) Catalyst bears and supported metal catalyst, process of manufacture, and use
ITTO20010848A0 (en) PROVISION AND METHOD OF PURIFICATION OR ELECTROCHEMICAL TREATMENT.
NO20040368L (en) Process for the preparation and purification of sodium hydride
NO20011850D0 (en) Process for purification of ammonium sulphate
NO20053244D0 (en) Catalytic reactor and process.
IS4608A (en) Electrolysis and catalytic exchange process where pre-enrichment takes place by electrolysis
FI20025023A7 (en) Method for controlling the chemical state of the pulp and circulating water system in a paper or pulp process
EA200000337A1 (en) METHOD FOR CARRYING OUT ELECTROLYSIS OF AQUEOUS SALT SOLUTION
DK1080219T3 (en) Amphotropic retrovirus packaging cell line, method of production and use thereof
FI990954L (en) Method and apparatus for removing oxygen from water or aqueous solution
DE69907115D1 (en) Catalytic conversion of ammonia
UA31413A (en) A method of water purification

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application