FR2172641A5 - Producing wood fibre pulp - by lessivating and washing prior to refining - Google Patents

Producing wood fibre pulp - by lessivating and washing prior to refining

Info

Publication number
FR2172641A5
FR2172641A5 FR7241352A FR7241352A FR2172641A5 FR 2172641 A5 FR2172641 A5 FR 2172641A5 FR 7241352 A FR7241352 A FR 7241352A FR 7241352 A FR7241352 A FR 7241352A FR 2172641 A5 FR2172641 A5 FR 2172641A5
Authority
FR
France
Prior art keywords
chamber
lessivating
lixiviating
pref
pulp
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
FR7241352A
Other languages
English (en)
French (fr)
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.)
Kamyr Inc
Original Assignee
Kamyr 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 Kamyr Inc filed Critical Kamyr Inc
Application granted granted Critical
Publication of FR2172641A5 publication Critical patent/FR2172641A5/fr
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
FR7241352A 1972-02-18 1972-11-21 Producing wood fibre pulp - by lessivating and washing prior to refining Expired FR2172641A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22743872A 1972-02-18 1972-02-18

Publications (1)

Publication Number Publication Date
FR2172641A5 true FR2172641A5 (en) 1973-09-28

Family

ID=22853110

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7241352A Expired FR2172641A5 (en) 1972-02-18 1972-11-21 Producing wood fibre pulp - by lessivating and washing prior to refining

Country Status (6)

Country Link
JP (1) JPS5729596B2 (cs)
BR (1) BR7209021D0 (cs)
CA (1) CA976012A (cs)
FI (1) FI53472C (cs)
FR (1) FR2172641A5 (cs)
SE (1) SE403150B (cs)

Also Published As

Publication number Publication date
FI53472B (cs) 1978-01-31
JPS5729596B2 (cs) 1982-06-23
BR7209021D0 (pt) 1973-09-13
JPS4892606A (cs) 1973-12-01
CA976012A (en) 1975-10-14
SE403150B (sv) 1978-07-31
FI53472C (fi) 1978-05-10

Similar Documents

Publication Publication Date Title
FI63607B (fi) Foerfarande foer framstaellning av cellulosamassor i utbytesomraodet 65-95 %
US4248662A (en) Oxygen pulping with recycled liquor
US4486267A (en) Chemithermomechanical pulping process employing separate alkali and sulfite treatments
JPS6231110B2 (cs)
EP0194981B1 (en) A method of manufacturing bleached chemimechanical and semichemical fibre pulp by means of a one-stage impregnation process
US4324612A (en) Process for the preparation of groundwood pulp
US4207139A (en) Method for producing groundwood pulp
WO2004050983A1 (en) Method and system for treatment of wood chips
IE75202B1 (en) Process for preparing bleached paper pulp
US4689117A (en) Thermomechanical digestion process for enhancing the brightness of cellulose pulp using bleachants
US4002528A (en) Apparatus for processing pulp
FR2172641A5 (en) Producing wood fibre pulp - by lessivating and washing prior to refining
US1936697A (en) Paper manufacture
US3073737A (en) Wood pulp and process for producing same
US3186899A (en) Groundwood pulp
SE8200756L (sv) Sett att framstella kemimekanisk pappersmassa
US3262839A (en) Neutral to weakly alkaline sulfite process for the extraction of cellulose from cellulosic material
US3650887A (en) Wood pulp bleaching process utilizing peroxide-silicate bleaching solution
US1726078A (en) Process for the production of cellulosic material
US3013934A (en) High yield pulp from hardwoods
US1890179A (en) Preparing refined bleached pulp
EP0239583A4 (en) PULP PRE-TREATMENT PROCESS WITH STABILIZING AGENTS AND PEROXIDE BEFORE MECHANICAL REFINING.
US1794174A (en) Method of preparing ground wood pulp
US2932600A (en) Process for the production of pulp from bagasse
US1961405A (en) Paper manufacture