ZA792563B - Bleaching of pulp - Google Patents

Bleaching of pulp

Info

Publication number
ZA792563B
ZA792563B ZA792563A ZA792563A ZA792563B ZA 792563 B ZA792563 B ZA 792563B ZA 792563 A ZA792563 A ZA 792563A ZA 792563 A ZA792563 A ZA 792563A ZA 792563 B ZA792563 B ZA 792563B
Authority
ZA
South Africa
Prior art keywords
bleaching
pulp
Prior art date
Application number
ZA792563A
Other languages
English (en)
Inventor
B May
Original Assignee
Monsanto Europe Sa
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 Monsanto Europe Sa filed Critical Monsanto Europe Sa
Publication of ZA792563B publication Critical patent/ZA792563B/xx

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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Cereal-Derived Products (AREA)
ZA792563A 1978-05-26 1979-05-25 Bleaching of pulp ZA792563B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2290178 1978-05-26

Publications (1)

Publication Number Publication Date
ZA792563B true ZA792563B (en) 1980-10-29

Family

ID=10186899

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA792563A ZA792563B (en) 1978-05-26 1979-05-25 Bleaching of pulp

Country Status (7)

Country Link
AU (1) AU528265B2 (no)
CA (1) CA1120210A (no)
FI (1) FI71177C (no)
FR (1) FR2426767A1 (no)
NO (1) NO153309C (no)
SE (1) SE7904430L (no)
ZA (1) ZA792563B (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE434284B (sv) * 1980-05-07 1984-07-16 Mo Och Domsjoe Ab Forfarande vid syrgasdelignifiering av kemiskt uppsluten cellulosamassa varvid aromatiska diaminer tillfores
SE441192B (sv) * 1980-05-27 1985-09-16 Mo Och Domsjoe Ab Forfarande for delignifiering av kemisk cellulosamassa med syrgas i nervaro av ett eller flera neutralisationsmedel
CN102229619A (zh) * 2011-04-26 2011-11-02 河南清水源科技股份有限公司 四乙烯五胺七亚甲基膦酸及其生产工艺
CA3075029A1 (en) 2017-09-11 2019-03-14 Solenis Technologies, L.P. Method for enhanced oxygen delignification of chemical wood pulps

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE785964A (fr) * 1971-07-07 1973-01-08 Monsanto Co Derives condenses de polyalkylenepolyamines

Also Published As

Publication number Publication date
CA1120210A (en) 1982-03-23
FI791681A (fi) 1979-11-27
FR2426767A1 (fr) 1979-12-21
NO153309C (no) 1986-02-19
AU4723379A (en) 1979-11-29
AU528265B2 (en) 1983-04-21
FI71177B (fi) 1986-08-14
NO153309B (no) 1985-11-11
FR2426767B1 (no) 1985-03-22
SE7904430L (sv) 1979-11-27
FI71177C (fi) 1986-11-24
NO791728L (no) 1979-11-27

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