FR2071917A5 - Cyanide detoxication by oxidn ion exchange - system - Google Patents

Cyanide detoxication by oxidn ion exchange - system

Info

Publication number
FR2071917A5
FR2071917A5 FR7040172A FR7040172A FR2071917A5 FR 2071917 A5 FR2071917 A5 FR 2071917A5 FR 7040172 A FR7040172 A FR 7040172A FR 7040172 A FR7040172 A FR 7040172A FR 2071917 A5 FR2071917 A5 FR 2071917A5
Authority
FR
France
Prior art keywords
exchanger
cyanide
heavy metal
weakly basic
ion exchange
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.)
Expired
Application number
FR7040172A
Other languages
English (en)
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.)
Zellweger Uster AG
Original Assignee
Zellweger Uster AG
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 Zellweger Uster AG filed Critical Zellweger Uster AG
Application granted granted Critical
Publication of FR2071917A5 publication Critical patent/FR2071917A5/fr
Expired legal-status Critical Current

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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • 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
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/05—Processes using organic exchangers in the strongly acidic form
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides
    • 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
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Removal Of Specific Substances (AREA)
FR7040172A 1969-12-16 1970-11-09 Cyanide detoxication by oxidn ion exchange - system Expired FR2071917A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1864369A CH521930A (de) 1969-12-16 1969-12-16 Verfahren zum Entgiften cyanidhaltiger Lösungen

Publications (1)

Publication Number Publication Date
FR2071917A5 true FR2071917A5 (en) 1971-09-17

Family

ID=4434375

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7040172A Expired FR2071917A5 (en) 1969-12-16 1970-11-09 Cyanide detoxication by oxidn ion exchange - system

Country Status (3)

Country Link
CH (1) CH521930A (fr)
DE (1) DE2046006A1 (fr)
FR (1) FR2071917A5 (fr)

Also Published As

Publication number Publication date
DE2046006A1 (de) 1971-06-24
CH521930A (de) 1972-04-30

Similar Documents

Publication Publication Date Title
HATTORI Light-induced reduction of nitrate, nitrite and hydroxylamine in a blue-green alga, Anabaena cylindrica
GB1280914A (en) Method of removing nitric acid, nitrate ions, and nitrite ions out of aqueous waste solutions
GB1297078A (fr)
FR2029540A1 (en) Epsilon caprolactam by one step synthesis
ES412425A1 (es) Un procedimiento para el tratamiento de aguas residuales deplantas de fabricacion de fertilizantes.
Cohen et al. Mechanism of reduction of cobalt (III) and ruthenium (III) hexaammine complexes by several aliphatic radicals
Raymond et al. The Isolation of Pentacyanonickelate (II) Salts
FR2071917A5 (en) Cyanide detoxication by oxidn ion exchange - system
GB1375259A (fr)
GB1313439A (en) Cation exchange conversion of hydroxylamine sulphate to hydroxylamine nitrate
FR2219121A1 (en) Cyanide effluent purication - by successive absorption in cationic, weak anionic and strong anionic resin beds
GB1536646A (en) Method and apparatus for the recovery of heavy metal ions from dilute aqueous solutions
Gunderloy et al. Dilute Solution Reactions of the Nitrate Ion as Applied to Water Reclamation
UA19836A1 (uk) Спосіб одержаhhя коhцеhтроваhого розчиhу hітрату амоhію
Gunderloy et al. Development of a chemical denitrification process
GB1272185A (en) A process for the catalytic detoxication of aqueous cyanide solution
Bernardin Detoxification of cyanide by adsorption and catalytic oxidation on granular activated carbon
Abend A process for the detoxification of trade waste waters containing cyanide and nitrite
GB1270900A (en) Method of recovering palladium
GB1471162A (en) Operation of a two-phase reactor
Kuhn et al. The Catalytic Oxidation of Cyanides(Die katalytische Luftoxidation von Zyaniden)
GB1110682A (en) Process for producing saturated aliphatic nitriles
SU556111A1 (ru) Способ очистки водных растворов солей металлов
FR2009952A1 (fr) Procede de neutralisation de liqueurs de regeneration d'echangeurs d'ions
GB1208217A (en) Regeneration of ion-exchange resins

Legal Events

Date Code Title Description
ST Notification of lapse