CA944905A - Obtaining sulfate pulp having a predetermined kappa number - Google Patents

Obtaining sulfate pulp having a predetermined kappa number

Info

Publication number: CA944905A
Authority: CA; Canada
Prior art keywords: kappa number; sulfate pulp; obtaining sulfate; predetermined; predetermined kappa
Prior art date: 1970-05-15
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

CA112,925A

Other languages

English (en)

Other versions

CA112925S (en

Inventor

Sture E. O. Noreus

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.)

Mo och Domsjo AB

Original Assignee

Mo och Domsjo 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.)

1970-05-15

Filing date

1971-05-13

Publication date

1974-04-09

1970-05-15 Priority claimed from SE06795/70A external-priority patent/SE367451B/xx

1971-05-13 Application filed by Mo och Domsjo AB filed Critical Mo och Domsjo AB

1974-04-09 Application granted granted Critical

1974-04-09 Publication of CA944905A publication Critical patent/CA944905A/en

Status Expired legal-status Critical Current

Links

QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1

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

CA112,925A 1970-05-15 1971-05-13 Obtaining sulfate pulp having a predetermined kappa number Expired CA944905A (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
SE06795/70A SE367451B (2)	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
CA944905A true CA944905A (en)	1974-04-09

Family

ID=27354422

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA112,925A Expired CA944905A (en)	1970-05-15	1971-05-13	Obtaining sulfate pulp having a predetermined kappa number

Country Status (5)

Country	Link
US (1)	US3886034A (2)
AT (1)	AT319735B (2)
CA (1)	CA944905A (2)
DE (1)	DE2123497C3 (2)
FR (1)	FR2091637A5 (2)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
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

Families Citing this family (10)

* 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 (fi) *	1986-09-08	1990-06-11	Savcor Consulting Oy	Foerfarande foer styrning av cellulosakok.
DE9017325U1 (de) *	1990-12-21	1992-01-02	Siemens AG, 8000 München	Prozeßleitsystem zur Steuerung der Herstellung von Zellstoff
EP0854953B1 (de) *	1995-10-09	2000-02-09	Siemens Aktiengesellschaft	Verfahren zur bestimmung des endpunktes der zellstoffkochung und anordnung zum steuern der kochzeit bei der zellstoffkochung in einem reaktor
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
RU2011149467A (ru) *	2009-05-06	2013-06-20	ЭфПиИННОВЕЙШНЗ	Кристаллическая сульфатированная целлюлоза ii и ее получение сернокислотным гидролизом целлюлозы

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

1971
- 1971-05-12 DE DE2123497A patent/DE2123497C3/de not_active Expired
- 1971-05-13 CA CA112,925A patent/CA944905A/en not_active Expired
- 1971-05-14 FR FR7117562A patent/FR2091637A5/fr not_active Expired
- 1971-05-14 AT AT423771A patent/AT319735B/de not_active IP Right Cessation
1973
- 1973-10-02 US US402697A patent/US3886034A/en not_active Expired - Lifetime

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
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
US5364502A (en) *	1992-07-08	1994-11-15	Pulp & Paper Research Institute Of Canada	Control of recovery boiler operation by IR spectroscopy
US5378320A (en) *	1992-07-08	1995-01-03	Pulp & Paper Research Institute Of Canada	Control of recausticizing system operation by IR spectroscopys

Also Published As

Publication number	Publication date
US3886034A (en)	1975-05-27
AT319735B (de)	1975-01-10
DE2123497B2 (de)	1977-11-24
DE2123497A1 (de)	1971-11-25
FR2091637A5 (2)	1972-01-14
DE2123497C3 (de)	1978-08-03

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