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ES8705940A1 - A process for the manufacture of cellulose pulps. - Google Patents

A process for the manufacture of cellulose pulps.

Info

Publication number
ES8705940A1
ES8705940A1 ES554182A ES554182A ES8705940A1 ES 8705940 A1 ES8705940 A1 ES 8705940A1 ES 554182 A ES554182 A ES 554182A ES 554182 A ES554182 A ES 554182A ES 8705940 A1 ES8705940 A1 ES 8705940A1
Authority
ES
Spain
Prior art keywords
impregnated
chemical products
manufacture
remove
cellulose pulps
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
ES554182A
Other languages
Spanish (es)
Other versions
ES554182A0 (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.)
Yhtyneet Paperitehtaat Oy
CAXTON PAPER MILLS Ltd
Original Assignee
Yhtyneet Paperitehtaat Oy
CAXTON PAPER MILLS 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 Yhtyneet Paperitehtaat Oy, CAXTON PAPER MILLS Ltd filed Critical Yhtyneet Paperitehtaat Oy
Publication of ES554182A0 publication Critical patent/ES554182A0/en
Publication of ES8705940A1 publication Critical patent/ES8705940A1/en
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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/266—Multistage processes the same pulping agent being used in all stages

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Materials For Medical Uses (AREA)

Abstract

PROCEDIMIENTO MODIFICADO PARA PREPARAR PASTA DE CELULOSA. COMPRENDE: A) IMPREGNAR AL MATERIAL CON PRODUCTOS QUIMICOS, DE LEJIADO, ENTRE 80 Y 100JC Y DURANTE 5 A 20 MINUTOS Y A UNA SOBREPRESION DE 0 A 800 KPA; B) LEJIAR EL MATERIAL IMPREGNADO; C) AÑADIR PRODUCTOS QUIMICOS DE LEJIADO A LA LEJIADA DE B); D) REFINAR MECANICAMENTE LA MEZCLA FORMADA, PARA REDUCIR EL MATERIAL A FIBRAS; Y E) LEJIAR ADICIONALMENTE LA MEZCLA IMPREGNADA Y REFINADA. EL MATERIAL CONSISTE EN PARTICULAS DE MADERA Y LOS PRODUCTOS QUIMICOS DE LEJIADO SON SOLUCIONES ACUOSAS DE SULFITO SODICO. SE UTILIZA PARA FORMAR PAPEL O CARTON.MODIFIED PROCEDURE TO PREPARE CELLULOSE PULP. IT INCLUDES: A) IMPREGNATING THE MATERIAL WITH CHEMICAL PRODUCTS, BETWEEN 80 AND 100JC AND DURING 5 TO 20 MINUTES AND AT AN OVERPRESSURE OF 0 TO 800 KPA; B) REMOVE THE IMPREGNATED MATERIAL; C) ADD CHEMICAL PRODUCTS FROM REMOVAL TO THE REMOTE OF B); D) MECHANICALLY REFINE THE MIXTURE FORMED, TO REDUCE THE MATERIAL TO FIBERS; AND E) ADDITIONALLY REMOVE THE IMPREGNATED AND REFINED MIXTURE. THE MATERIAL CONSISTS OF WOOD PARTICLES AND THE BLEACHING CHEMICALS ARE AQUEOUS SODIUM SULPHITE SOLUTIONS. IT IS USED TO FORM PAPER OR CARDBOARD.

ES554182A 1985-04-04 1986-04-04 A process for the manufacture of cellulose pulps. Expired ES8705940A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ211684A NZ211684A (en) 1985-04-04 1985-04-04 Manufacture of cellulose pulp: second digestion step follows initial digestion and refining steps

Publications (2)

Publication Number Publication Date
ES554182A0 ES554182A0 (en) 1987-06-01
ES8705940A1 true ES8705940A1 (en) 1987-06-01

Family

ID=19921155

Family Applications (1)

Application Number Title Priority Date Filing Date
ES554182A Expired ES8705940A1 (en) 1985-04-04 1986-04-04 A process for the manufacture of cellulose pulps.

Country Status (15)

Country Link
EP (1) EP0199481B1 (en)
JP (1) JPS61282491A (en)
KR (1) KR930003394B1 (en)
AR (1) AR243623A1 (en)
AU (1) AU585331B2 (en)
BR (1) BR8601558A (en)
CA (1) CA1273454A (en)
DE (1) DE3667515D1 (en)
ES (1) ES8705940A1 (en)
FI (1) FI83238C (en)
MY (1) MY102502A (en)
NO (1) NO167159C (en)
NZ (1) NZ211684A (en)
PT (1) PT82341B (en)
ZA (1) ZA862454B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH1672H (en) * 1988-03-28 1997-08-05 Kimberly-Clark Corporation Tissue products made from low-coarseness fibers
FI126694B (en) * 2005-12-02 2017-04-13 Metsä Board Oyj Chemical-mechanical pulp and process for producing chemical-mechanical pulp
CN102561094B (en) * 2012-01-06 2015-04-15 黑龙江浩源生物科技有限公司 Method for making pulp and paper by using cornstalk xylose residue
CN103410036B (en) * 2013-08-15 2015-11-18 齐鲁工业大学 A kind of production method of high-yield hardwood pulp
CN104928958A (en) * 2015-05-25 2015-09-23 张家港市欣发包装有限责任公司 Method of producing corrugated paper with straw
AT518800B1 (en) * 2016-06-17 2019-09-15 Andritz Ag Maschf METHOD FOR PRODUCING FIBROUS MATERIAL
CN112342814B (en) * 2020-11-19 2023-03-31 横县东糖糖业有限公司纸业分公司 Method for producing high-strength natural-color paper pulp by taking eucalyptus bark as raw material
CN113481741B (en) * 2021-07-27 2023-05-09 中福海峡(平潭)发展股份有限公司 Fungus grass chemical machine pulp and preparation method and application thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1145106A (en) * 1980-07-11 1983-04-26 Alan C. Shaw Procedure for improving properties of mechanical wood pulps
US4502918A (en) * 1981-06-10 1985-03-05 Macmillan Bloedel Limited Two-stage chemical treatment of mechanical wood pulp with sodium sulfite
AU570034B2 (en) * 1983-04-20 1988-03-03 Process Evaluation And Development Corp. Continuous pulp digester

Also Published As

Publication number Publication date
BR8601558A (en) 1986-12-09
FI861453L (en) 1986-10-05
AU5565086A (en) 1986-10-16
EP0199481B1 (en) 1989-12-13
KR930003394B1 (en) 1993-04-26
PT82341A (en) 1986-05-01
NZ211684A (en) 1989-07-27
FI83238B (en) 1991-02-28
NO861307L (en) 1986-10-06
EP0199481A1 (en) 1986-10-29
DE3667515D1 (en) 1990-01-18
KR860008339A (en) 1986-11-14
ZA862454B (en) 1986-11-26
CA1273454A (en) 1990-09-04
MY102502A (en) 1992-06-30
PT82341B (en) 1988-12-15
JPS61282491A (en) 1986-12-12
FI861453A0 (en) 1986-04-04
ES554182A0 (en) 1987-06-01
AU585331B2 (en) 1989-06-15
FI83238C (en) 1991-06-10
AR243623A1 (en) 1993-08-31
NO167159B (en) 1991-07-01
NO167159C (en) 1991-10-09

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