FR860112A - Process for bleaching straw and similar raw materials - Google Patents

Process for bleaching straw and similar raw materials

Info

Publication number
FR860112A
FR860112A FR860112DA FR860112A FR 860112 A FR860112 A FR 860112A FR 860112D A FR860112D A FR 860112DA FR 860112 A FR860112 A FR 860112A
Authority
FR
France
Prior art keywords
raw materials
similar raw
bleaching straw
bleaching
straw
Prior art date
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
Other languages
French (fr)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of FR860112A publication Critical patent/FR860112A/en
Expired 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
FR860112D 1938-09-14 1939-09-12 Process for bleaching straw and similar raw materials Expired FR860112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US214148XA 1938-09-14 1938-09-14

Publications (1)

Publication Number Publication Date
FR860112A true FR860112A (en) 1941-01-07

Family

ID=21804083

Family Applications (1)

Application Number Title Priority Date Filing Date
FR860112D Expired FR860112A (en) 1938-09-14 1939-09-12 Process for bleaching straw and similar raw materials

Country Status (3)

Country Link
CH (1) CH214148A (en)
FR (1) FR860112A (en)
NL (1) NL50696C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969093C (en) * 1948-11-11 1958-04-30 Aschaffenburger Zellstoffwerke Process for the production of bleached cellulose from wood or other vegetable material
DE4114134A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignifying of alkali cellulose - by bleaching with aq. peracid, extracting with alkaline soln.,bleaching with aq. peracid and bleaching twice with cyanamide-activated hydrogen peroxide soln.
DE4114135A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignification of alkali cellulose - by first treating with aq. organic peracid soln. and then with cyanamide (salt) activated hydrogen peroxide soln.
EP0801170A1 (en) * 1996-04-12 1997-10-15 Chemoxal Sa Process for the delignification and/or bleaching of a paper pulp
FR2747408A1 (en) * 1996-04-12 1997-10-17 Air Liquide Delignification and/or bleaching paper paste
FR2754550A1 (en) * 1996-10-15 1998-04-17 Chemoxal Sa Delignification and/or bleaching paper paste

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527546A (en) * 1948-02-12 1950-10-31 Buffalo Electro Chem Co Production of fused collars

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969093C (en) * 1948-11-11 1958-04-30 Aschaffenburger Zellstoffwerke Process for the production of bleached cellulose from wood or other vegetable material
DE4114134A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignifying of alkali cellulose - by bleaching with aq. peracid, extracting with alkaline soln.,bleaching with aq. peracid and bleaching twice with cyanamide-activated hydrogen peroxide soln.
DE4114135A1 (en) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Chlorine-free bleaching and delignification of alkali cellulose - by first treating with aq. organic peracid soln. and then with cyanamide (salt) activated hydrogen peroxide soln.
EP0801170A1 (en) * 1996-04-12 1997-10-15 Chemoxal Sa Process for the delignification and/or bleaching of a paper pulp
FR2747408A1 (en) * 1996-04-12 1997-10-17 Air Liquide Delignification and/or bleaching paper paste
FR2754550A1 (en) * 1996-10-15 1998-04-17 Chemoxal Sa Delignification and/or bleaching paper paste

Also Published As

Publication number Publication date
NL50696C (en)
CH214148A (en) 1941-04-15

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