FR2358467A1 - Procede de separation et de recuperation du chrome - Google Patents

Procede de separation et de recuperation du chrome

Info

Publication number
FR2358467A1
FR2358467A1 FR7621269A FR7621269A FR2358467A1 FR 2358467 A1 FR2358467 A1 FR 2358467A1 FR 7621269 A FR7621269 A FR 7621269A FR 7621269 A FR7621269 A FR 7621269A FR 2358467 A1 FR2358467 A1 FR 2358467A1
Authority
FR
France
Prior art keywords
waste water
acetic acid
treatment
barium carbonate
acid
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.)
Granted
Application number
FR7621269A
Other languages
English (en)
Other versions
FR2358467B1 (fr
Inventor
Edward J Feltz
Ross Cunningham
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7621269A priority Critical patent/FR2358467A1/fr
Publication of FR2358467A1 publication Critical patent/FR2358467A1/fr
Application granted granted Critical
Publication of FR2358467B1 publication Critical patent/FR2358467B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Le procédé concerne la séparation et la récupération du chrome contenu dans les effluents aqueux comprenant le traitement de ces effluents avec un composé de baryum en milieu acide pour précipiter des composés de chrome et la séparation par filtration de ces derniers. On traite lesdits effluents avec du carbonate de baryum et un composé acétique en milieu aqueux, on filtre les composés précipites de chrome dans un premier matériau filtrant résistant aux acides, on récupère le chrome ainsi séparé, on élimine le baryum présent dans le filtrat en l'additionnant d'acide sulfurique qui fait précipiter le baryum sous forme de sulfate de baryum insoluble et en faisant passer l'effluent ainsi traité à l'acide sulfurique sur un deuxième matériau filtrant pour séparer le sulfate de baryum insoluble formé, et on recueille l'effluent ayant été filtré pour la réutilisation de son contenu en chrome dans un procédé de chromage. Application à la séparation et à la récupération du chrome des solutions provenant d'installations de chromage.
FR7621269A 1976-07-12 1976-07-12 Procede de separation et de recuperation du chrome Granted FR2358467A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7621269A FR2358467A1 (fr) 1976-07-12 1976-07-12 Procede de separation et de recuperation du chrome

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7621269A FR2358467A1 (fr) 1976-07-12 1976-07-12 Procede de separation et de recuperation du chrome

Publications (2)

Publication Number Publication Date
FR2358467A1 true FR2358467A1 (fr) 1978-02-10
FR2358467B1 FR2358467B1 (fr) 1983-07-08

Family

ID=9175594

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621269A Granted FR2358467A1 (fr) 1976-07-12 1976-07-12 Procede de separation et de recuperation du chrome

Country Status (1)

Country Link
FR (1) FR2358467A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB235548A (en) * 1925-05-26 1926-04-22 Mayer & Sohn J A process for the recovery of chromium as chromate from chromiferous waste materials resulting from the leather industry
US1700657A (en) * 1924-06-16 1929-01-29 Firm J Mayer & Sohn Process for recovering chromium from chromiferous waste materials
US3371034A (en) * 1967-01-31 1968-02-27 Richards Raymond Process for removal of chromium in industrial waste waters
US3728273A (en) * 1971-09-27 1973-04-17 Allied Chem Method of recovering chromium and barium values from waste barium chromate
US3869386A (en) * 1972-10-24 1975-03-04 Schlage Lock Co Removal of heavy metal ions from plating wastes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700657A (en) * 1924-06-16 1929-01-29 Firm J Mayer & Sohn Process for recovering chromium from chromiferous waste materials
GB235548A (en) * 1925-05-26 1926-04-22 Mayer & Sohn J A process for the recovery of chromium as chromate from chromiferous waste materials resulting from the leather industry
US3371034A (en) * 1967-01-31 1968-02-27 Richards Raymond Process for removal of chromium in industrial waste waters
US3728273A (en) * 1971-09-27 1973-04-17 Allied Chem Method of recovering chromium and barium values from waste barium chromate
US3869386A (en) * 1972-10-24 1975-03-04 Schlage Lock Co Removal of heavy metal ions from plating wastes

Also Published As

Publication number Publication date
FR2358467B1 (fr) 1983-07-08

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Legal Events

Date Code Title Description
ST Notification of lapse