FR2396118A1 - Procede de recyclage pour papeterie - Google Patents

Procede de recyclage pour papeterie

Info

Publication number
FR2396118A1
FR2396118A1 FR7738611A FR7738611A FR2396118A1 FR 2396118 A1 FR2396118 A1 FR 2396118A1 FR 7738611 A FR7738611 A FR 7738611A FR 7738611 A FR7738611 A FR 7738611A FR 2396118 A1 FR2396118 A1 FR 2396118A1
Authority
FR
France
Prior art keywords
cellulose fibre
pollution
recycle
oven
give
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
FR7738611A
Other languages
English (en)
French (fr)
Other versions
FR2396118B1 (pt
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.)
Occidental Chemical Corp
Original Assignee
Hooker Chemicals and Plastics Corp
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 Hooker Chemicals and Plastics Corp filed Critical Hooker Chemicals and Plastics Corp
Publication of FR2396118A1 publication Critical patent/FR2396118A1/fr
Application granted granted Critical
Publication of FR2396118B1 publication Critical patent/FR2396118B1/fr
Granted legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0064Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D21C11/0071Treatment of green or white liquors with gases, e.g. with carbon dioxide for carbonation; Expulsion of gaseous compounds, e.g. hydrogen sulfide, from these liquors by this treatment (stripping); Optional separation of solid compounds formed in the liquors by this treatment
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02Oxides of chlorine
    • C01B11/022Chlorine dioxide (ClO2)
    • C01B11/023Preparation from chlorites or chlorates
    • C01B11/025Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00Carbonates of sodium, potassium or alkali metals in general
    • C01D7/07Preparation from the hydroxides
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/12Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Materials For Medical Uses (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FR7738611A 1976-12-22 1977-12-21 Procede de recyclage pour papeterie Granted FR2396118A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75365676A 1976-12-22 1976-12-22

Publications (2)

Publication Number Publication Date
FR2396118A1 true FR2396118A1 (fr) 1979-01-26
FR2396118B1 FR2396118B1 (pt) 1983-01-14

Family

ID=25031593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738611A Granted FR2396118A1 (fr) 1976-12-22 1977-12-21 Procede de recyclage pour papeterie

Country Status (12)

Country Link
JP (1) JPS5381703A (pt)
AU (1) AU510914B2 (pt)
BR (1) BR7708509A (pt)
DE (1) DE2757474C3 (pt)
FI (1) FI67243C (pt)
FR (1) FR2396118A1 (pt)
MX (1) MX148348A (pt)
NO (1) NO774357L (pt)
NZ (1) NZ185958A (pt)
PT (1) PT67443B (pt)
SE (1) SE435304B (pt)
SU (1) SU934912A3 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8204266L (sv) * 1982-07-12 1984-01-13 Korsnaes Marma Ab Forfarande for teckande av kemikalieforlusterna vid massaframstellning
FI77064C (fi) * 1985-04-29 1989-01-10 Tampella Oy Ab Foerfarande foer kokning och blekning av cellulosa.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1455076A (fr) * 1964-04-02 1966-04-01 A & W Overseas Dev Ltd Procédé de fabrication de pâte blanchie et produit obtenu

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503801A (pt) * 1973-05-21 1975-01-16
JPS5013361A (pt) * 1973-06-07 1975-02-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1455076A (fr) * 1964-04-02 1966-04-01 A & W Overseas Dev Ltd Procédé de fabrication de pâte blanchie et produit obtenu

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/63 *

Also Published As

Publication number Publication date
AU510914B2 (en) 1980-07-17
PT67443B (en) 1979-05-23
NO774357L (no) 1978-06-23
FI773860A (fi) 1978-06-23
MX148348A (es) 1983-04-14
DE2757474B2 (de) 1979-09-13
FR2396118B1 (pt) 1983-01-14
SE7714601L (sv) 1978-06-23
FI67243C (fi) 1985-02-11
DE2757474C3 (de) 1980-06-19
SE435304B (sv) 1984-09-17
SU934912A3 (ru) 1982-06-07
JPS5381703A (en) 1978-07-19
AU3166977A (en) 1979-06-21
NZ185958A (en) 1979-11-01
BR7708509A (pt) 1978-09-05
FI67243B (fi) 1984-10-31
PT67443A (en) 1978-01-01
DE2757474A1 (de) 1978-06-29

Similar Documents

Publication Publication Date Title
BR8100867A (pt) Processo para o branqueamento de celuloses
ATE277222T1 (de) Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien
SE8904313L (sv) Vaeteperoxid-blekningsprocess
ATE130388T1 (de) Verfahren zum bleichen von mechanischem holzstoff.
ATA26190A (de) Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
ES374816A1 (es) Perfeccionamientos en el sistema de tratar y recuperar sus-tancias quimicas procedentes de licor negro que con tienen sulfuro de sodio para la elaboracion de pulpa.
GB1064715A (en) Improvements in and relating to cellulosic pulps
FR2396118A1 (fr) Procede de recyclage pour papeterie
ES392100A1 (es) Metodo para el tratamiento del licor residual que contiene na2 s y na2 co3 procedente de un procedimiento de pulpacion al polisulfuro.
CA1080914A (en) Pulping of hardwood with sodium sulfide and sodium hydroxide while generating hydrogen sulfide in situ in the initial pulping stages
ATE153399T1 (de) Verfahren zum herstellen von natriumhydroxyd aus weisslauge
US2772240A (en) Method of treating residual liquors obtained in the manufacture of pulp by the sulphate cellulose process
ES2097489T5 (es) Un metodo de preparacion de lejia de digestion.
FI57796B (fi) Sulfiditetskontroll
JPH06341082A (ja) 硫酸ナトリウム及び/又は炭酸ナトリウム含有物質の処理方法
GB1112617A (en) Recovery of sodium chloride in the production of bleached pulp
ES393777A1 (es) Procedimiento para tratar el licor residual que contiene na2s y na2co3 procedente de la preparacion de pulpa al poli-sulfuro.
ATE5268T1 (de) Verfahren und mischung zur herstellung von cellulosepulpen.
US3003909A (en) Method of pulping hardwood by a neutral sulfite process
GB1074111A (en) Processes useful in the manufacture of bleached pulp
FR2394639A1 (fr) Procede de reduction a l'aide d'un hydrosulfite et de borohydrure de sodium
CA1103412A (en) Kraft mill recycle process
US4153502A (en) Process for the production of polysulphide pulping liquor from pulp mill recovery smelt
ES2080643A1 (es) "un procedimiento de recuperacion y reutilizacion del azufre en una fabrica de celulosa al sulfato"
ES466435A1 (es) Un procedimiento de blanqueo y produccion de pasta celulosi-ca

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse