UY32789A - Método y sistema de producción de pulpa de celulosa con alto grado de alfa-celulosa - Google Patents

Método y sistema de producción de pulpa de celulosa con alto grado de alfa-celulosa

Info

Publication number
UY32789A
UY32789A UY0001032789A UY32789A UY32789A UY 32789 A UY32789 A UY 32789A UY 0001032789 A UY0001032789 A UY 0001032789A UY 32789 A UY32789 A UY 32789A UY 32789 A UY32789 A UY 32789A
Authority
UY
Uruguay
Prior art keywords
cellulose
alfa
production
high degree
white liquor
Prior art date
Application number
UY0001032789A
Other languages
English (en)
Inventor
Moreira Leite Marcelo
Original Assignee
Bahia Specialty Cellulose S A
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 Bahia Specialty Cellulose S A filed Critical Bahia Specialty Cellulose S A
Publication of UY32789A publication Critical patent/UY32789A/es

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • 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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
    • 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
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
    • 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
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • 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
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • 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
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Método para el procesamiento de pulpa, relacionado con un proceso prehidrólisis-Kraft (PHKP) que incluye la adición de astillas de madera o similares en un recipiente de reacción, realizar la prehidrólisis y neutralizar la mezcla con una primera cantidad de licor blanco, seguido de una solución diferente como un filtrado alcalino de extracción cáustica en frío, opcionalmente enriquecido con licor blanco. Los fluidos de neutralización se reemplazan con un fluido de cocción que comprende un licor negro caliente y un filtrado alcalino, opcionalmente enriquecido con licor blanco.
UY0001032789A 2010-05-06 2010-07-14 Método y sistema de producción de pulpa de celulosa con alto grado de alfa-celulosa UY32789A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100042681A KR20110123184A (ko) 2010-05-06 2010-05-06 높은 알파 용해 펄프 제조를 위한 방법 및 시스템

Publications (1)

Publication Number Publication Date
UY32789A true UY32789A (es) 2011-12-30

Family

ID=44901159

Family Applications (2)

Application Number Title Priority Date Filing Date
UY0001032789A UY32789A (es) 2010-05-06 2010-07-14 Método y sistema de producción de pulpa de celulosa con alto grado de alfa-celulosa
UY0001033418A UY33418A (es) 2010-05-06 2011-05-27 Metodo y sistema par el procesamiento de pulpa mediante el uso de extracción cáustica en frío con reutilización del filtrado alcalino

Family Applications After (1)

Application Number Title Priority Date Filing Date
UY0001033418A UY33418A (es) 2010-05-06 2011-05-27 Metodo y sistema par el procesamiento de pulpa mediante el uso de extracción cáustica en frío con reutilización del filtrado alcalino

Country Status (4)

Country Link
US (3) US8535480B2 (es)
KR (1) KR20110123184A (es)
AR (1) AR088708A1 (es)
UY (2) UY32789A (es)

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WO2014179702A1 (en) * 2013-05-03 2014-11-06 Celanese International Corporation Integrated processes for purifying a cellulosic material
WO2014179673A1 (en) * 2013-05-03 2014-11-06 Celanese International Corporation Processes for purifying a cellulosic material
WO2015021130A1 (en) * 2013-08-06 2015-02-12 Celanese International Corporation Processes for purifying a cellulosic material
SE538454C2 (en) * 2014-11-27 2016-07-12 Valmet Oy Method for displacement in batch digesters
US11608385B2 (en) 2015-10-30 2023-03-21 Cellulose Sciences International, Inc Alternative post treatment for stabilizing highly disordered celluloses
CN109196164B (zh) * 2016-05-27 2022-02-15 菲布拉技术私人有限公司 用于生产高分子量木质素的方法和系统
WO2018144309A1 (en) 2017-01-31 2018-08-09 Kimberly-Clark Worldwide, Inc. High bulk tissue comprising cross-linked fibers
WO2018204061A1 (en) * 2017-05-02 2018-11-08 Cellulose Sciences International, Inc. Treatment of brown stock
SE1850733A1 (en) * 2018-06-15 2019-12-16 Valmet Oy Method and assembly for optimizing filtrate circulation in a kraft process
WO2020249992A1 (en) 2019-06-14 2020-12-17 Bracell Bahia Specialty Cellulose SA High alpha and high intrinsic viscosity pulp production apparatuses, methods and systems
US11142589B2 (en) 2019-06-14 2021-10-12 Bracell Bahia Specialty Cellulose SA High alpha and high intrinsic viscosity pulp production apparatuses, methods and systems
FI129811B (en) * 2019-08-23 2022-09-15 Upm Kymmene Corp A process for reducing phosphorus from wastewater originating from the pulping process
KR102322624B1 (ko) * 2019-10-23 2021-11-05 경상국립대학교산학협력단 감나무 부산물을 이용한 표백 크라프트 펄프 제조 방법
CN110878482A (zh) * 2019-12-09 2020-03-13 中冶纸业银河有限公司 一种化机浆高浓滤液处理方法
US11970819B2 (en) 2020-01-30 2024-04-30 Kimberly-Clark Worldwide, Inc. Tissue products comprising crosslinked fibers

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Also Published As

Publication number Publication date
US20150013925A1 (en) 2015-01-15
UY33418A (es) 2011-12-30
KR20110123184A (ko) 2011-11-14
US8535480B2 (en) 2013-09-17
US20110272109A1 (en) 2011-11-10
US20110272110A1 (en) 2011-11-10
AR088708A1 (es) 2014-07-02
US8734612B2 (en) 2014-05-27

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Effective date: 20210420