FR2256283B1 - - Google Patents

Info

Publication number
FR2256283B1
FR2256283B1 FR7416502A FR7416502A FR2256283B1 FR 2256283 B1 FR2256283 B1 FR 2256283B1 FR 7416502 A FR7416502 A FR 7416502A FR 7416502 A FR7416502 A FR 7416502A FR 2256283 B1 FR2256283 B1 FR 2256283B1
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
FR7416502A
Other languages
French (fr)
Other versions
FR2256283A1 (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.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian Industries Ltd
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
Priority claimed from GB6030373A external-priority patent/GB1449828A/en
Application filed by Canadian Industries Ltd filed Critical Canadian Industries Ltd
Publication of FR2256283A1 publication Critical patent/FR2256283A1/fr
Application granted granted Critical
Publication of FR2256283B1 publication Critical patent/FR2256283B1/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/263—Multistage processes at least one stage being in presence of oxygen
FR7416502A 1973-12-31 1974-05-13 Delignification of lignocellulosic material for paper - with alkali metal hydroxide, oxygen and opt. alkali metal sulphide Granted FR2256283A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6030373A GB1449828A (en) 1973-04-26 1973-12-31 Oxygen pulping process

Publications (2)

Publication Number Publication Date
FR2256283A1 FR2256283A1 (en) 1975-07-25
FR2256283B1 true FR2256283B1 (de) 1977-10-28

Family

ID=10485394

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416502A Granted FR2256283A1 (en) 1973-12-31 1974-05-13 Delignification of lignocellulosic material for paper - with alkali metal hydroxide, oxygen and opt. alkali metal sulphide

Country Status (3)

Country Link
AR (1) AR201322A1 (de)
AT (1) AT334195B (de)
FR (1) FR2256283A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148201A (en) * 1976-06-01 1977-12-09 Toyo Pulp Co Ltd Process for making alkali pulp and lignin separation
FR2430475A2 (fr) * 1978-07-05 1980-02-01 Centre Tech Ind Papier Procede de fabrication de pates papetieres chimiques
CN113735120A (zh) * 2021-08-17 2021-12-03 上海赛普瑞特生物科技有限公司 一种电容炭和高纯纤维素联合生产的方法

Also Published As

Publication number Publication date
FR2256283A1 (en) 1975-07-25
AT334195B (de) 1976-01-10
AR201322A1 (es) 1975-02-28
ATA383474A (de) 1976-04-15

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Legal Events

Date Code Title Description
ST Notification of lapse