FR2426767B1 - - Google Patents

Info

Publication number
FR2426767B1
FR2426767B1 FR7912874A FR7912874A FR2426767B1 FR 2426767 B1 FR2426767 B1 FR 2426767B1 FR 7912874 A FR7912874 A FR 7912874A FR 7912874 A FR7912874 A FR 7912874A FR 2426767 B1 FR2426767 B1 FR 2426767B1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7912874A
Other languages
French (fr)
Other versions
FR2426767A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Agriculture BVBA
Original Assignee
Monsanto Europe NV 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 NV SA filed Critical Monsanto Europe NV SA
Publication of FR2426767A1 publication Critical patent/FR2426767A1/en
Application granted granted Critical
Publication of FR2426767B1 publication Critical patent/FR2426767B1/fr
Granted legal-status Critical Current

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)
FR7912874A 1978-05-26 1979-05-21 Amino-methylene-phosphonate additive for oxygen bleaching paper pulp - used to prevent degradation of cellulose (SW 14.1.80) Granted FR2426767A1 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2426767A1 FR2426767A1 (en) 1979-12-21
FR2426767B1 true FR2426767B1 (en) 1985-03-22

Family

ID=10186899

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912874A Granted FR2426767A1 (en) 1978-05-26 1979-05-21 Amino-methylene-phosphonate additive for oxygen bleaching paper pulp - used to prevent degradation of cellulose (SW 14.1.80)

Country Status (7)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE434284B (en) * 1980-05-07 1984-07-16 Mo Och Domsjoe Ab PROCEDURES FOR OXYGEN DELIGNIFICATION OF CHEMICAL CONSUMPED CELLULOSAMASSA TO WHICH AROMATIC DIAMINES ARE PROVIDED
SE441192B (en) * 1980-05-27 1985-09-16 Mo Och Domsjoe Ab PROCEDURE FOR DELIGNIFICATION OF CHEMICAL CELLULOSAMASSA WITH OXYGEN IN THE PRESENCE OF ONE OR MULTIPLE NEUTRALIZING AGENTS
CN102229619A (en) * 2011-04-26 2011-11-02 河南清水源科技股份有限公司 Tetraethylenepentamine heptamethylene phosphonic acid and preparation technology thereof
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 (en) * 1971-07-07 1973-01-08 Monsanto Co CONDENSED DERIVATIVES OF POLYALKYLENEPOLYAMINES

Also Published As

Publication number Publication date
FI71177B (en) 1986-08-14
AU4723379A (en) 1979-11-29
NO791728L (en) 1979-11-27
FR2426767A1 (en) 1979-12-21
CA1120210A (en) 1982-03-23
FI71177C (en) 1986-11-24
NO153309B (en) 1985-11-11
FI791681A (en) 1979-11-27
NO153309C (en) 1986-02-19
AU528265B2 (en) 1983-04-21
SE7904430L (en) 1979-11-27
ZA792563B (en) 1980-10-29

Similar Documents

Publication Publication Date Title
FR2426767B1 (en)
AU3898778A (en)
AU3803078A (en)
AU3892778A (en)
IN147425B (en)
BG25917A1 (en)
BG25818A1 (en)
BG25974A1 (en)
BG26009A1 (en)
BG25973A1 (en)
BG25956A1 (en)
BG25954A1 (en)
BG25972A1 (en)
BG26006A1 (en)
BG25971A1 (en)
BG25952A1 (en)
BG25940A1 (en)
BG25957A1 (en)
BG25922A1 (en)
BG26007A1 (en)
BG25806A1 (en)
BG25918A1 (en)
BG25897A1 (en)
BG26017A1 (en)
BG26015A1 (en)

Legal Events

Date Code Title Description
ST Notification of lapse