BR9004623A - Processo de descoramento e alvejamento de polpa compreendendo fibra celulosica secundaria - Google Patents

Processo de descoramento e alvejamento de polpa compreendendo fibra celulosica secundaria

Info

Publication number
BR9004623A
BR9004623A BR9004623A BR9004623A BR9004623A BR 9004623 A BR9004623 A BR 9004623A BR 9004623 A BR9004623 A BR 9004623A BR 9004623 A BR9004623 A BR 9004623A BR 9004623 A BR9004623 A BR 9004623A
Authority
BR
Brazil
Prior art keywords
pulping
secondary cell
bleaching process
cell fiber
fiber
Prior art date
Application number
BR9004623A
Other languages
English (en)
Portuguese (pt)
Inventor
Ronald Charles Naddeo
Augustine Ivanhoe Dalton
Original Assignee
Air Prod & Chem
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 Air Prod & Chem filed Critical Air Prod & Chem
Publication of BR9004623A publication Critical patent/BR9004623A/pt

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/08—Pretreatment of the finely-divided materials before digesting with oxygen-generating compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling
BR9004623A 1989-10-18 1990-09-17 Processo de descoramento e alvejamento de polpa compreendendo fibra celulosica secundaria BR9004623A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42329889A 1989-10-18 1989-10-18

Publications (1)

Publication Number Publication Date
BR9004623A true BR9004623A (pt) 1991-09-10

Family

ID=23678370

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9004623A BR9004623A (pt) 1989-10-18 1990-09-17 Processo de descoramento e alvejamento de polpa compreendendo fibra celulosica secundaria

Country Status (8)

Country Link
JP (1) JPH03137285A (zh)
KR (1) KR930010534B1 (zh)
CN (1) CN1051062A (zh)
BR (1) BR9004623A (zh)
CA (1) CA2023904C (zh)
MX (1) MX174304B (zh)
MY (1) MY107045A (zh)
ZA (1) ZA907009B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2082557C (en) 1992-02-24 1997-03-11 Charles W. Hankins Integrated pulping process of waste paper yielding tissue-grade paper fibers
CN111893800B (zh) * 2020-06-17 2022-07-26 宁波宝新不锈钢有限公司 一种有利于平整延伸率轧出的不锈钢垫纸的制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6225796A (ja) * 1985-07-26 1987-02-03 松下電器産業株式会社 音声認識装置

Also Published As

Publication number Publication date
MX174304B (es) 1994-05-04
MY107045A (en) 1995-09-30
JPH03137285A (ja) 1991-06-11
CA2023904C (en) 1995-11-28
ZA907009B (en) 1992-05-27
KR910008224A (ko) 1991-05-30
CA2023904A1 (en) 1991-04-19
KR930010534B1 (ko) 1993-10-25
CN1051062A (zh) 1991-05-01

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law