MX174399B - HIGH PERFORMANCE PULPATION AND WHITENING PROCESS - Google Patents

HIGH PERFORMANCE PULPATION AND WHITENING PROCESS

Info

Publication number
MX174399B
MX174399B MX377486A MX377486A MX174399B MX 174399 B MX174399 B MX 174399B MX 377486 A MX377486 A MX 377486A MX 377486 A MX377486 A MX 377486A MX 174399 B MX174399 B MX 174399B
Authority
MX
Mexico
Prior art keywords
impregnating solution
impregnating
shavings
peroxide
chips
Prior art date
Application number
MX377486A
Other languages
Spanish (es)
Inventor
Victor M Gentile Jr
Harry D Wilder
Original Assignee
Scott Paper Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25113415&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX174399(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Scott Paper Co filed Critical Scott Paper Co
Publication of MX174399B publication Critical patent/MX174399B/en

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
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

La presente invención se refiere a un proceso de pulpación de alto rendimiento para material lignocelulósico en forma de virutas cuyo proceso comprende: (a)la impregnación de las virutas con una primera solución impregnadora conteniendo reactivos químicos estabilizadores para el peróxido bajo condiciones de pH temperatura y concentración para los reactivos químicos estabilizadores tales que sean solubles en la primera solución impregnadora (b) la impregnación de las virutas con una segunda solución impregnadora conteniendo reactivos químicos para el peróxido bajo condiciones de pH temperatura y concentración preseleccionadas para proveer: (i) condiciones bajo las cuales los raactivos químicos en la segunda solución impregnadora sean solubles en la segunda solución impregnadora; (ii) cuando dicha segunda solución impregnadora se mezcla con la primera solución impregnadora dentro de la virutas la mezcla produce condiciones bajo las cuales uno o más de los reactivos químicos en la combinación de la primera y segunda soluciones impregnadoras se precipita o precipitan o forman un flóculo para estabilizar al peróxido dentro de las virutas; (c) la impregnación de las virutas con una tercera solución impregnadora conteniendo peróxido alcalino; (d) la refinación mecánica de las virutas impregnadas con el peróxido alcalino.The present invention relates to a high-performance pulping process for lignocellulosic material in the form of shavings, the process comprising: (a) impregnating the shavings with a first impregnating solution containing chemical stabilizing reagents for peroxide under conditions of pH temperature and concentration for stabilizing chemical reagents such that they are soluble in the first impregnating solution (b) impregnation of the chips with a second impregnating solution containing chemical reagents for peroxide under conditions of pH temperature and preselected concentration to provide: (i) conditions under which the chemical ractants in the second impregnating solution are soluble in the second impregnating solution; (ii) when said second impregnating solution is mixed with the first impregnating solution within the chips the mixture produces conditions under which one or more of the chemical reagents in the combination of the first and second impregnating solutions precipitates or precipitates or forms a floc to stabilize the peroxide inside the shavings; (c) impregnating the shavings with a third impregnating solution containing alkaline peroxide; (d) mechanical refining of chips impregnated with alkaline peroxide.

MX377486A 1985-09-20 1986-09-19 HIGH PERFORMANCE PULPATION AND WHITENING PROCESS MX174399B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77845785A 1985-09-20 1985-09-20

Publications (1)

Publication Number Publication Date
MX174399B true MX174399B (en) 1994-05-13

Family

ID=25113415

Family Applications (1)

Application Number Title Priority Date Filing Date
MX377486A MX174399B (en) 1985-09-20 1986-09-19 HIGH PERFORMANCE PULPATION AND WHITENING PROCESS

Country Status (10)

Country Link
EP (1) EP0239583B2 (en)
AR (1) AR243622A1 (en)
AU (3) AU605745B2 (en)
BR (1) BR8606875A (en)
CA (1) CA1274657A (en)
DE (1) DE3676490D1 (en)
ES (1) ES2002755A6 (en)
MX (1) MX174399B (en)
PT (1) PT83406B (en)
WO (1) WO1987001746A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE458690B (en) * 1986-11-06 1989-04-24 Sunds Defibrator MAKE MANUFACTURING MECHANICAL MASS FROM LIGNOCELLULOSALLY MATERIAL IN PIECE FORM WITH A LENGTH IN THE FIBER DIRECTION OF AT LEAST 200 MM
CA2057231A1 (en) * 1991-01-07 1992-07-08 Ulrike Tschirner Method of pretreating lignocellulosic materials prior to alkaline peroxide high yield pulping
FR2672315B1 (en) * 1991-01-31 1996-06-07 Hoechst France NEW PROCESS FOR REFINING PAPER PULP.
CA2631545C (en) * 2005-12-02 2014-08-19 Akzo Nobel N.V. Process of producing high-yield pulp
US8268122B2 (en) 2005-12-02 2012-09-18 Akzo Nobel N.V. Process of producing high-yield pulp
US9273270B2 (en) 2014-02-20 2016-03-01 Church & Dwight Co., Inc. Unit dose cleaning products for delivering a peroxide-containing bleaching agent

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE496197C (en) * 1928-05-15 1930-04-17 Carl G Schwalbe Dr Process for the production of pulp from lignified fibers
CA895757A (en) * 1970-04-03 1972-03-21 E. Worster Hans Single-stage soda-oxygen pulping
US4187141A (en) * 1975-02-24 1980-02-05 Alf Societe Anonyme Method of producing bleached mechanical pulp
SE436368B (en) * 1979-01-12 1984-12-03 Sunds Defibrator METHODS OF MANUFACTURING BLEACHED, MECHANICAL, CHEMICAL MECHANICAL AND SEMI-CHEMICAL MASSES OF LIGNOCELLULOSE FIBER MATERIALS
JPS63402A (en) * 1986-06-18 1988-01-05 Toyota Motor Corp Powdery raw material for sintered forming and sintered forming method for using same

Also Published As

Publication number Publication date
AU6658290A (en) 1991-01-31
EP0239583A1 (en) 1987-10-07
PT83406A (en) 1986-10-01
AU6225386A (en) 1987-04-07
EP0239583A4 (en) 1988-03-22
EP0239583B1 (en) 1991-01-02
ES2002755A6 (en) 1988-10-01
AR243622A1 (en) 1993-08-31
PT83406B (en) 1989-05-12
AU663781B2 (en) 1995-10-19
BR8606875A (en) 1987-11-03
WO1987001746A1 (en) 1987-03-26
AU605745B2 (en) 1991-01-24
CA1274657A (en) 1990-10-02
EP0239583B2 (en) 1994-01-12
DE3676490D1 (en) 1991-02-07
AU3984493A (en) 1993-08-19

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