FI881282L - Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä - Google Patents

Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä Download PDF

Info

Publication number: FI881282L
Authority: FI; Finland
Prior art keywords: digesters; cellulosic materials; delignified cellulosic; delignified; materials
Prior art date: 1987-03-18

Application number

FI881282A

Other languages

English (en)

Swedish (sv)

Other versions

FI881282A0 (fi

FI96781B (fi

FI96781C (fi

Inventor

J Martin Macleod

Martin E Cyr

Original Assignee

Pulp Paper Res Inst

Irving Pulp & Paper 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.)

1987-03-18

Filing date

1988-03-17

Publication date

1988-09-19

1988-03-17 Application filed by Pulp Paper Res Inst, Irving Pulp & Paper Ltd filed Critical Pulp Paper Res Inst

1988-03-17 Publication of FI881282A0 publication Critical patent/FI881282A0/fi

1988-09-19 Publication of FI881282L publication Critical patent/FI881282L/fi

1996-05-15 Publication of FI96781B publication Critical patent/FI96781B/fi

1996-08-26 Application granted granted Critical

1996-08-26 Publication of FI96781C publication Critical patent/FI96781C/fi

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
- D21C7/00—Digesters
- D21C7/08—Discharge devices

FI881282A 1987-03-18 1988-03-17 Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä FI96781C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US2902887		1987-03-18
US07/029,028 US4814042A (en)	1987-03-18	1987-03-18	Method for discharging delignified cellulosic materials from digesters

Publications (4)

Publication Number	Publication Date
FI881282A0 FI881282A0 (fi)	1988-03-17
FI881282L true FI881282L (fi)	1988-09-19
FI96781B FI96781B (fi)	1996-05-15
FI96781C FI96781C (fi)	1996-08-26

Family

ID=21846840

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI881282A FI96781C (fi)	1987-03-18	1988-03-17	Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä

Country Status (5)

Country	Link
US (1)	US4814042A (fi)
JP (1)	JPS63256785A (fi)
CA (1)	CA1301516C (fi)
FI (1)	FI96781C (fi)
SE (2)	SE467360B (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5788812A (en) *	1985-11-05	1998-08-04	Agar; Richard C.	Method of recovering furfural from organic pulping liquor
SE8903417L (sv) *	1989-10-17	1991-04-18	Sunds Defibrator Ind Ab	Saett foer toemning av kokare
CA2158522C (en) *	1994-09-19	2001-04-10	Daniel R. Roll	Mixer for mixing multi-phase fluids
FI105700B (fi) *	1995-11-01	2000-09-29	Ahlstrom Machinery Oy	Menetelmä ja laitteisto eräkeittoprosessin parantamiseksi
FI113187B (fi) *	1999-05-28	2007-09-25	Metso Paper Pori Oy	Menetelmä massan käsittelemiseksi
FI110327B (fi)	1999-10-04	2002-12-31	Metso Chemical Pulping Oy	Menetelmä sellumassan valmistamiseksi
FI121384B (fi) *	1999-12-29	2010-10-29	Metso Paper Inc	Parannettu menetelmä sellumassan valmistamiseksi tärpätin talteenotolla
US20060157209A1 (en) *	2005-01-19	2006-07-20	Bianchini Craig A	Method and apparatus to distribute the inflow of liquors in a Batch Digester

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1560881A (en) *	1924-04-14	1925-11-10	Phillip C Ulmen	Quick-cook sulphite process
US1818913A (en) *	1928-04-12	1931-08-11	Chemipulp Process Inc	Method and apparatus for the chemical treatment of pulp
JPS57167475A (en) *	1981-04-02	1982-10-15	Mitsubishi Paper Mills Ltd	Production of bleached pulp from unbleached used paper

1987
- 1987-03-18 US US07/029,028 patent/US4814042A/en not_active Expired - Lifetime
1988
- 1988-03-08 CA CA000560849A patent/CA1301516C/en not_active Expired
- 1988-03-16 SE SE8800951A patent/SE467360B/sv not_active IP Right Cessation
- 1988-03-16 SE SE8800951D patent/SE8800951L/xx not_active Application Discontinuation
- 1988-03-17 JP JP63064643A patent/JPS63256785A/ja active Pending
- 1988-03-17 FI FI881282A patent/FI96781C/fi not_active IP Right Cessation

Also Published As

Publication number	Publication date
FI881282A0 (fi)	1988-03-17
SE467360B (sv)	1992-07-06
FI96781B (fi)	1996-05-15
SE8800951D0 (sv)	1988-03-16
JPS63256785A (ja)	1988-10-24
US4814042A (en)	1989-03-21
FI96781C (fi)	1996-08-26
CA1301516C (en)	1992-05-26
SE8800951L (sv)	1988-09-19

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Legal Events

Date	Code	Title	Description
1996-04-17	BB	Publication of examined application
2004-08-31	FG	Patent granted	Owner name: PULP AND PAPER RESEARCH INSTITUTE OF CANADA Owner name: IRVING PULP & PAPER, LIMITED
2006-09-30	MA	Patent expired

Date

Code

Title

Description

1996-04-17

Publication of examined application

2004-08-31

Patent granted

Owner name: PULP AND PAPER RESEARCH INSTITUTE OF CANADA

Owner name: IRVING PULP & PAPER, LIMITED

2006-09-30

Patent expired