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FR2742429B1 - Procede de desulfatation d'eaux saturees en sultate de calcium - Google Patents

Procede de desulfatation d'eaux saturees en sultate de calcium

Info

Publication number
FR2742429B1
FR2742429B1 FR9514775A FR9514775A FR2742429B1 FR 2742429 B1 FR2742429 B1 FR 2742429B1 FR 9514775 A FR9514775 A FR 9514775A FR 9514775 A FR9514775 A FR 9514775A FR 2742429 B1 FR2742429 B1 FR 2742429B1
Authority
FR
France
Prior art keywords
sultate
desulphation
calcium
saturated water
saturated
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 - Fee Related
Application number
FR9514775A
Other languages
English (en)
Other versions
FR2742429A1 (fr
Inventor
Henri Jogand
Pierre Alain Peron
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.)
Suez International SAS
Original Assignee
Degremont SA
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 Degremont SA filed Critical Degremont SA
Priority to FR9514775A priority Critical patent/FR2742429B1/fr
Priority to FR9604195A priority patent/FR2742430B1/fr
Priority to EP96941068A priority patent/EP0904253B1/fr
Priority to DE69612674T priority patent/DE69612674T2/de
Priority to DE0904253T priority patent/DE904253T1/de
Priority to PCT/FR1996/001878 priority patent/WO1997021632A1/fr
Priority to US09/043,828 priority patent/US6036867A/en
Priority to PT96941068T priority patent/PT904253E/pt
Priority to CA002235712A priority patent/CA2235712C/fr
Priority to ES96941068T priority patent/ES2128282T3/es
Publication of FR2742429A1 publication Critical patent/FR2742429A1/fr
Application granted granted Critical
Publication of FR2742429B1 publication Critical patent/FR2742429B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
FR9514775A 1995-12-13 1995-12-13 Procede de desulfatation d'eaux saturees en sultate de calcium Expired - Fee Related FR2742429B1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR9514775A FR2742429B1 (fr) 1995-12-13 1995-12-13 Procede de desulfatation d'eaux saturees en sultate de calcium
FR9604195A FR2742430B1 (fr) 1995-12-13 1996-04-03 Procede de dessalement, de demineralisation de solutions contenant des acides et/ou des sels metalliques
DE69612674T DE69612674T2 (de) 1995-12-13 1996-11-27 Verfahren zur entsalzung, und demineralisierung von säure und/oder metallsalzen enthaltenden lösungen
DE0904253T DE904253T1 (de) 1995-12-13 1996-11-27 Verfahren zur entsalzung, und demineralisierung von säure und/oder metallsalzen enthaltenden lösungen
PCT/FR1996/001878 WO1997021632A1 (fr) 1995-12-13 1996-11-27 Procede de dessalement, de demineralisation de solutions contenant des acides et/ou des sels metalliques
US09/043,828 US6036867A (en) 1995-12-13 1996-11-27 Method for desalinating and demineralizing solutions containing acids and/or metal salts
EP96941068A EP0904253B1 (fr) 1995-12-13 1996-11-27 Procede de dessalement, de demineralisation de solutions contenant des acides et/ou des sels metalliques
PT96941068T PT904253E (pt) 1995-12-13 1996-11-27 Processo de dessalinizacao de desmineralizacao de solucoes contendo acidos e/ou sais metalicos
CA002235712A CA2235712C (fr) 1995-12-13 1996-11-27 Procede de dessalement, de demineralisation de solutions contenant des acides et/ou des sels metalliques
ES96941068T ES2128282T3 (es) 1995-12-13 1996-11-27 Procedimiento de desalamiento, de desmineralizacion de soluciones que contienen acidos y/o sales metalicas.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9514775A FR2742429B1 (fr) 1995-12-13 1995-12-13 Procede de desulfatation d'eaux saturees en sultate de calcium

Publications (2)

Publication Number Publication Date
FR2742429A1 FR2742429A1 (fr) 1997-06-20
FR2742429B1 true FR2742429B1 (fr) 1998-02-20

Family

ID=9485461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9514775A Expired - Fee Related FR2742429B1 (fr) 1995-12-13 1995-12-13 Procede de desulfatation d'eaux saturees en sultate de calcium

Country Status (1)

Country Link
FR (1) FR2742429B1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339575A1 (fr) * 1976-01-30 1977-08-26 Degremont Procede et installation de traitement des eaux par precipitation cristalline et decantation
ZA927932B (en) * 1991-10-15 1993-04-26 Calgon Corp Method for controlling calcium sulfate scaling in metal mining circuits.

Also Published As

Publication number Publication date
FR2742429A1 (fr) 1997-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse