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BR9203858A - PROCESS TO IMPROVE THE SELECTIVITY OF THE DESIGNIFICATION OF A CHEMICAL PAPER PULP - Google Patents

PROCESS TO IMPROVE THE SELECTIVITY OF THE DESIGNIFICATION OF A CHEMICAL PAPER PULP

Info

Publication number
BR9203858A
BR9203858A BR929203858A BR9203858A BR9203858A BR 9203858 A BR9203858 A BR 9203858A BR 929203858 A BR929203858 A BR 929203858A BR 9203858 A BR9203858 A BR 9203858A BR 9203858 A BR9203858 A BR 9203858A
Authority
BR
Brazil
Prior art keywords
designification
selectivity
improve
paper pulp
chemical paper
Prior art date
Application number
BR929203858A
Other languages
Portuguese (pt)
Inventor
Roy T Hill
Original Assignee
Interox America
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 Interox America filed Critical Interox America
Publication of BR9203858A publication Critical patent/BR9203858A/en

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
    • 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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR929203858A 1991-10-04 1992-10-02 PROCESS TO IMPROVE THE SELECTIVITY OF THE DESIGNIFICATION OF A CHEMICAL PAPER PULP BR9203858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77085991A 1991-10-04 1991-10-04

Publications (1)

Publication Number Publication Date
BR9203858A true BR9203858A (en) 1993-04-27

Family

ID=25089920

Family Applications (1)

Application Number Title Priority Date Filing Date
BR929203858A BR9203858A (en) 1991-10-04 1992-10-02 PROCESS TO IMPROVE THE SELECTIVITY OF THE DESIGNIFICATION OF A CHEMICAL PAPER PULP

Country Status (5)

Country Link
KR (1) KR930008239A (en)
BR (1) BR9203858A (en)
CA (1) CA2079730A1 (en)
CZ (1) CZ283763B6 (en)
ZA (1) ZA927428B (en)

Also Published As

Publication number Publication date
CZ297592A3 (en) 1993-07-14
CZ283763B6 (en) 1998-06-17
KR930008239A (en) 1993-05-21
CA2079730A1 (en) 1993-04-05
ZA927428B (en) 1993-07-23

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Legal Events

Date Code Title Description
EE Request for examination
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law