AT319735B - Process for the production of sulphate pulp with a predetermined degree of delignification - Google Patents

Process for the production of sulphate pulp with a predetermined degree of delignification

Info

Publication number
AT319735B
AT319735B AT423771A AT423771A AT319735B AT 319735 B AT319735 B AT 319735B AT 423771 A AT423771 A AT 423771A AT 423771 A AT423771 A AT 423771A AT 319735 B AT319735 B AT 319735B
Authority
AT
Austria
Prior art keywords
delignification
production
predetermined degree
sulphate pulp
sulphate
Prior art date
Application number
AT423771A
Other languages
German (de)
Original Assignee
Mo Och Domsjoe Ab
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 SE06795/70A external-priority patent/SE367451B/xx
Application filed by Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Application granted granted Critical
Publication of AT319735B publication Critical patent/AT319735B/en

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
    • D21C3/228—Automation of the pulping processes
AT423771A 1970-05-15 1971-05-14 Process for the production of sulphate pulp with a predetermined degree of delignification AT319735B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE06795/70A SE367451B (en) 1970-05-15 1970-05-15
US14222671A 1971-05-11 1971-05-11
US402697A US3886034A (en) 1970-05-15 1973-10-02 Process for determining the conditions needed in controllably obtaining sulfate pulp having a predetermined kappa number

Publications (1)

Publication Number Publication Date
AT319735B true AT319735B (en) 1975-01-10

Family

ID=27354422

Family Applications (1)

Application Number Title Priority Date Filing Date
AT423771A AT319735B (en) 1970-05-15 1971-05-14 Process for the production of sulphate pulp with a predetermined degree of delignification

Country Status (5)

Country Link
US (1) US3886034A (en)
AT (1) AT319735B (en)
CA (1) CA944905A (en)
DE (1) DE2123497C3 (en)
FR (1) FR2091637A5 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941649A (en) * 1972-07-14 1976-03-02 Mo Och Domsjo Aktiebolag Process for obtaining a predetermined Kappa number in sulfate pulping
FI80526C (en) * 1986-09-08 1990-06-11 Savcor Consulting Oy Method for controlling cellulose boiling
DE9017325U1 (en) * 1990-12-21 1992-01-02 Siemens AG, 8000 München Process control system for controlling pulp production
US5282931A (en) * 1992-07-08 1994-02-01 Pulp And Paper Research Institute Of Canada Determination and control of effective alkali in kraft liquors by IR spectroscopy
EP0854953B1 (en) * 1995-10-09 2000-02-09 Siemens Aktiengesellschaft Process for determining the final point of pulp cooking and an arrangement for controlling the pulp cooking time in a reactor
USD378439S (en) * 1995-11-21 1997-03-11 Industrial Molding Corporation Light support stake
USD377844S (en) * 1996-01-16 1997-02-04 Industrial Molding Corporation Light support stake
US6174409B1 (en) * 1997-09-19 2001-01-16 American Air Liquide Inc. Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process
US6339222B1 (en) 1998-11-12 2002-01-15 Kvaerner Canada Inc. Determination of ionic species concentration by near infrared spectroscopy
US6635147B1 (en) * 2000-05-14 2003-10-21 U.S. Borax Inc. Method for analyzing boron-containing alkaline pulping liquors
AU2010244941A1 (en) * 2009-05-06 2011-12-01 Fpinnovations Crystalline sulphated cellulose II and its production from sulphuric acid hydrolysis of cellulose

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB855708A (en) * 1956-02-27 1960-12-07 Ici Ltd Improvements in and relating to the determination and control of compositions in chemical processes by titration
US3553075A (en) * 1968-04-01 1971-01-05 Calgon Corp Method for controlling the hydroxide ion concentration in pulp digestion liquor

Also Published As

Publication number Publication date
DE2123497B2 (en) 1977-11-24
US3886034A (en) 1975-05-27
FR2091637A5 (en) 1972-01-14
CA944905A (en) 1974-04-09
DE2123497A1 (en) 1971-11-25
DE2123497C3 (en) 1978-08-03

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee