GB1366252A - Nitric acid pulping process - Google Patents

Nitric acid pulping process

Info

Publication number
GB1366252A
GB1366252A GB1578072A GB1578072A GB1366252A GB 1366252 A GB1366252 A GB 1366252A GB 1578072 A GB1578072 A GB 1578072A GB 1578072 A GB1578072 A GB 1578072A GB 1366252 A GB1366252 A GB 1366252A
Authority
GB
United Kingdom
Prior art keywords
cellulosic
impregnated
nitric acid
reject
pulping
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
GB1578072A
Other languages
English (en)
Inventor
H Valter
C Anderson
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.)
KILBORN ENG Ltd
Original Assignee
KILBORN ENG 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
Application filed by KILBORN ENG Ltd filed Critical KILBORN ENG Ltd
Publication of GB1366252A publication Critical patent/GB1366252A/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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/16—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides nitrogen oxides; nitric acid nitrates, nitrites

Landscapes

  • Paper (AREA)
GB1578072A 1971-04-09 1972-04-05 Nitric acid pulping process Expired GB1366252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13290871A 1971-04-09 1971-04-09

Publications (1)

Publication Number Publication Date
GB1366252A true GB1366252A (en) 1974-09-11

Family

ID=22456120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1578072A Expired GB1366252A (en) 1971-04-09 1972-04-05 Nitric acid pulping process

Country Status (5)

Country Link
JP (1) JPS5822597B1 (OSRAM)
DE (1) DE2215739C2 (OSRAM)
FR (1) FR2136259A5 (OSRAM)
GB (1) GB1366252A (OSRAM)
PH (1) PH13234A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106624A1 (en) * 2003-06-03 2004-12-09 Pacific Pulp Resources Inc. Method for producing pulp and lignin
WO2007065241A1 (en) * 2005-12-07 2007-06-14 Kelly Anthony O'flynn A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681149C (de) * 1936-04-24 1939-09-18 I G Farbenindustrie Akt Ges Verfahren zur Gewinnung von Zellstoff
US3461028A (en) * 1968-02-01 1969-08-12 Alscope Ltd Process for making pulp by impregnating cellulosic materials with ammonium hydroxide and nitric acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106624A1 (en) * 2003-06-03 2004-12-09 Pacific Pulp Resources Inc. Method for producing pulp and lignin
WO2007065241A1 (en) * 2005-12-07 2007-06-14 Kelly Anthony O'flynn A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein

Also Published As

Publication number Publication date
JPS5822597B1 (OSRAM) 1983-05-10
PH13234A (en) 1980-02-14
FR2136259A5 (OSRAM) 1972-12-22
DE2215739C2 (de) 1985-05-15
DE2215739A1 (de) 1972-10-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee