CA2172701A1 - Procede d'extraction d'effluents contenant un sequestrant utilise dans les usines de blanchiment de pates a papier - Google Patents

Procede d'extraction d'effluents contenant un sequestrant utilise dans les usines de blanchiment de pates a papier

Info

Publication number
CA2172701A1
CA2172701A1 CA002172701A CA2172701A CA2172701A1 CA 2172701 A1 CA2172701 A1 CA 2172701A1 CA 002172701 A CA002172701 A CA 002172701A CA 2172701 A CA2172701 A CA 2172701A CA 2172701 A1 CA2172701 A1 CA 2172701A1
Authority
CA
Canada
Prior art keywords
solution
pulp
alkaline
chelant
retaining
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
CA002172701A
Other languages
English (en)
Other versions
CA2172701C (fr
Inventor
Ruijin Guo
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.)
Aker Solutions Canada Inc
Original Assignee
Chemetics International Co Ltd
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 Chemetics International Co Ltd filed Critical Chemetics International Co Ltd
Priority to CA002172701A priority Critical patent/CA2172701C/fr
Publication of CA2172701A1 publication Critical patent/CA2172701A1/fr
Application granted granted Critical
Publication of CA2172701C publication Critical patent/CA2172701C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters

Landscapes

  • Paper (AREA)
  • Detergent Compositions (AREA)
CA002172701A 1996-03-26 1996-03-26 Procede d'extraction d'effluents contenant un sequestrant utilise dans les usines de blanchiment de pates a papier Expired - Fee Related CA2172701C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002172701A CA2172701C (fr) 1996-03-26 1996-03-26 Procede d'extraction d'effluents contenant un sequestrant utilise dans les usines de blanchiment de pates a papier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002172701A CA2172701C (fr) 1996-03-26 1996-03-26 Procede d'extraction d'effluents contenant un sequestrant utilise dans les usines de blanchiment de pates a papier

Publications (2)

Publication Number Publication Date
CA2172701A1 true CA2172701A1 (fr) 1997-09-27
CA2172701C CA2172701C (fr) 2001-08-21

Family

ID=4157825

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002172701A Expired - Fee Related CA2172701C (fr) 1996-03-26 1996-03-26 Procede d'extraction d'effluents contenant un sequestrant utilise dans les usines de blanchiment de pates a papier

Country Status (1)

Country Link
CA (1) CA2172701C (fr)

Also Published As

Publication number Publication date
CA2172701C (fr) 2001-08-21

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