BR9804050A - Processo para ajuste da alcalinidade de um suspensão de polpa em um poldador de rejeito. - Google Patents

Processo para ajuste da alcalinidade de um suspensão de polpa em um poldador de rejeito.

Info

Publication number
BR9804050A
BR9804050A BR9804050A BR9804050A BR9804050A BR 9804050 A BR9804050 A BR 9804050A BR 9804050 A BR9804050 A BR 9804050A BR 9804050 A BR9804050 A BR 9804050A BR 9804050 A BR9804050 A BR 9804050A
Authority
BR
Brazil
Prior art keywords
adjusting
alkalinity
pulp suspension
slurry
tailings filler
Prior art date
Application number
BR9804050A
Other languages
English (en)
Inventor
David John Plaskon
Richard Joseph Piazza
Original Assignee
Praxair Technology Inc
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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BR9804050A publication Critical patent/BR9804050A/pt

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

''PROCESSO PARA AJUSTE DA ALCALINIDADE DE UMA SUSPENSãO DE POLPA EM UM POLPADOR DE REJEITO''. A presente invenção refere-se a um processo aperfeiçoado para ajustar a alcanilidade de uma suspensão de polpa em um polpador de rejeito, e mais particularmente, a um processo para ajustar o pH da suspensão de polpa usando dióxido de carbono.
BR9804050A 1997-10-24 1998-10-22 Processo para ajuste da alcalinidade de um suspensão de polpa em um poldador de rejeito. BR9804050A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/957,035 US6086714A (en) 1997-10-24 1997-10-24 Process for adjusting the alkalinity of pulp slurry in a broke pulper using carbon dioxide

Publications (1)

Publication Number Publication Date
BR9804050A true BR9804050A (pt) 1999-11-09

Family

ID=25498989

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9804050A BR9804050A (pt) 1997-10-24 1998-10-22 Processo para ajuste da alcalinidade de um suspensão de polpa em um poldador de rejeito.

Country Status (7)

Country Link
US (1) US6086714A (pt)
EP (1) EP0911443A1 (pt)
KR (1) KR19990037279A (pt)
CN (1) CN1215773A (pt)
BR (1) BR9804050A (pt)
CA (1) CA2251272A1 (pt)
ID (1) ID22372A (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI102911B1 (fi) * 1997-06-13 1999-03-15 Aga Ab Menetelmä massasuspension pH:n stabiloimiseksi ja paperin tuottamiseksi stabiloidusta massasta
FR2795753B1 (fr) * 1999-07-01 2001-09-14 Carboxyque Francaise Perfectionnement aux procedes de fabrication de produits papetiers en vue de l'incorporation dans lesdits produits de dechets papetiers necessitant un traitement basique
SE514687C2 (sv) * 1999-07-09 2001-04-02 Sca Graphic Res Ab Metod för eliminering av skadliga substanser i en processvätska
EP1386998B1 (en) * 2002-07-31 2005-04-27 Milltech S.r.l. Pulper and method for the recovery of paper production waste
SE528716C8 (sv) * 2005-06-03 2007-04-24 Metso Paper Inc Anordning för behandling av cellulosamassa i en tvättanordning
CN110130134B (zh) * 2018-02-02 2022-10-14 金红叶纸业集团有限公司 一种造纸系统及造纸方法
US11401660B2 (en) * 2018-08-23 2022-08-02 Eastman Chemical Company Broke composition of matter
CN112593432B (zh) * 2020-12-09 2021-12-21 北新集团建材股份有限公司 一种边料回收制浆装置系统及其浓度控制方法
CA3230460A1 (en) * 2021-08-31 2023-03-09 Aisan KHODAEI Process and system for controlling temperature of a circulating foamed fluid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9102248A (pt) * 1991-05-31 1993-01-12 Liquid Carbonic Ind Sa Sistema c02 para neutralizacao direta e neutralizacao indireta de polpas celulosicas alcalinas obtidas em digestores,ou por reciclagem de papeis usados
CA2105412C (en) * 1992-09-03 1997-07-22 Herbert H. Espy Repulping paper and paperboard
CA2115881C (en) * 1993-02-25 2000-05-23 Michael G. Paice Non-chlorine bleaching of kraft pulp

Also Published As

Publication number Publication date
EP0911443A1 (en) 1999-04-28
US6086714A (en) 2000-07-11
CA2251272A1 (en) 1999-04-24
ID22372A (id) 1999-10-07
CN1215773A (zh) 1999-05-05
KR19990037279A (ko) 1999-05-25

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law