ES311273A1 - Un procedimiento para producir pasta blanqueada de material celulosico. - Google Patents

Un procedimiento para producir pasta blanqueada de material celulosico.

Info

Publication number
ES311273A1
ES311273A1 ES0311273A ES311273A ES311273A1 ES 311273 A1 ES311273 A1 ES 311273A1 ES 0311273 A ES0311273 A ES 0311273A ES 311273 A ES311273 A ES 311273A ES 311273 A1 ES311273 A1 ES 311273A1
Authority
ES
Spain
Prior art keywords
sodium
produce
paste
translation
alkaline liquid
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
Application number
ES0311273A
Other languages
English (en)
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.)
A & W (overseas Developments) Ltd
Original Assignee
A & W (overseas Developments) 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 A & W (overseas Developments) Ltd filed Critical A & W (overseas Developments) Ltd
Publication of ES311273A1 publication Critical patent/ES311273A1/es
Expired 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
    • D21C9/00—After-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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C01B11/023—Preparation from chlorites or chlorates
    • C01B11/025—Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions
    • 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
    • D21C11/0035—Introduction of compounds, e.g. sodium sulfate, into the cycle in order to compensate for the losses of pulping agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Tents Or Canopies (AREA)
ES0311273A 1964-04-02 1965-03-31 Un procedimiento para producir pasta blanqueada de material celulosico. Expired ES311273A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB13695/64A GB1074111A (en) 1964-04-02 1964-04-02 Processes useful in the manufacture of bleached pulp
GB2259064 1964-06-01

Publications (1)

Publication Number Publication Date
ES311273A1 true ES311273A1 (es) 1966-02-01

Family

ID=26249936

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0311273A Expired ES311273A1 (es) 1964-04-02 1965-03-31 Un procedimiento para producir pasta blanqueada de material celulosico.

Country Status (9)

Country Link
CS (1) CS153436B2 (es)
DE (1) DE1517152A1 (es)
ES (1) ES311273A1 (es)
FI (1) FI45882C (es)
FR (1) FR1455076A (es)
GB (1) GB1074111A (es)
NL (1) NL143295B (es)
NO (1) NO123326B (es)
SE (1) SE311469B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ185958A (en) * 1976-12-22 1979-11-01 Hooker Chemicals Plastics Corp Pulping liquor recyling;comination with sulphur cycle in bleaching plant
SE8704041L (sv) * 1987-10-16 1989-04-17 Sca Development Ab Saett vid blekning av cellulosamassa

Also Published As

Publication number Publication date
CS153436B2 (es) 1974-02-25
FI45882B (es) 1972-06-30
FR1455076A (fr) 1966-04-01
FI45882C (fi) 1972-10-10
SE311469B (es) 1969-06-09
GB1074111A (en) 1967-06-28
NL143295B (nl) 1974-09-16
NL6504240A (es) 1965-10-04
NO123326B (es) 1971-10-25
DE1517152A1 (de) 1969-04-24

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