CA936310A - Two stage process for the production of chemical pulps - Google Patents

Two stage process for the production of chemical pulps

Info

Publication number
CA936310A
CA936310A CA110383A CA110383A CA936310A CA 936310 A CA936310 A CA 936310A CA 110383 A CA110383 A CA 110383A CA 110383 A CA110383 A CA 110383A CA 936310 A CA936310 A CA 936310A
Authority
CA
Canada
Prior art keywords
production
stage process
chemical pulps
pulps
chemical
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
CA110383A
Other versions
CA110383S (en
Inventor
E. Worster Hans
F. Pudek Marian
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.)
MacMillan Bloedel Ltd
Original Assignee
MacMillan Bloedel 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 to US00133395A priority Critical patent/US3773611A/en
Application filed by MacMillan Bloedel Ltd filed Critical MacMillan Bloedel Ltd
Priority to CA110383A priority patent/CA936310A/en
Application granted granted Critical
Publication of CA936310A publication Critical patent/CA936310A/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
    • 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
CA110383A 1971-04-12 1971-04-15 Two stage process for the production of chemical pulps Expired CA936310A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US00133395A US3773611A (en) 1971-04-12 1971-04-12 Two-stage sodium sulfite-oxygen pulping
CA110383A CA936310A (en) 1971-04-12 1971-04-15 Two stage process for the production of chemical pulps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13339571A 1971-04-12 1971-04-12
CA110383A CA936310A (en) 1971-04-12 1971-04-15 Two stage process for the production of chemical pulps

Publications (1)

Publication Number Publication Date
CA936310A true CA936310A (en) 1973-11-06

Family

ID=25666772

Family Applications (1)

Application Number Title Priority Date Filing Date
CA110383A Expired CA936310A (en) 1971-04-12 1971-04-15 Two stage process for the production of chemical pulps

Country Status (2)

Country Link
US (1) US3773611A (en)
CA (1) CA936310A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552616A (en) * 1982-10-20 1985-11-12 New Fibers International Inc. Pulping process pretreatment using a lower alkanolamine in the presence of ammonium hydroxide
US5464563A (en) * 1993-08-25 1995-11-07 Burlington Chemical Co., Inc. Bleaching composition
CN101736427B (en) * 2009-12-22 2011-08-03 唐山三友集团东光浆粕有限责任公司 Bamboo alpha-pulp for viscose and production method thereof
BR112012031400B1 (en) 2010-06-10 2020-11-17 Packaging Corporation Of America pulp manufacturing method for corrugated medium
CN104407098B (en) * 2014-09-23 2016-04-20 黄伟洪 A kind of method of Fast Evaluation birch soda anthraquinone process technique

Also Published As

Publication number Publication date
US3773611A (en) 1973-11-20

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