DE3790278T1 - - Google Patents

Info

Publication number: DE3790278T1
Authority: DE; Germany
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

DE19873790278

Other languages

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.)

1986-05-28

Filing date

1987-05-27

Publication date

1988-06-01

1987-05-27 Application filed filed Critical

1988-06-01 Publication of DE3790278T1 publication Critical patent/DE3790278T1/de

Status Withdrawn legal-status Critical Current

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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

DE19873790278 1986-05-28 1987-05-27 Withdrawn DE3790278T1 (ja)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FI862262A FI75196C (fi)	1986-05-28	1986-05-28	Foerfarande foer foerblekning av kemiska cellulosamassor.

Publications (1)

Publication Number	Publication Date
DE3790278T1 true DE3790278T1 (ja)	1988-06-01

Family

ID=8522706

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE19873790278 Withdrawn DE3790278T1 (ja)	1986-05-28	1987-05-27

Country Status (6)

Country	Link
AT (1)	AT395027B (ja)
DE (1)	DE3790278T1 (ja)
FI (1)	FI75196C (ja)
FR (1)	FR2599398B1 (ja)
SE (1)	SE8800152L (ja)
WO (1)	WO1987007314A1 (ja)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE412235C (de) *	1924-02-27	1925-04-17	Armin Hillmer	Verfahren zum Herausloesen des Lignins aus ligninhaltigen Zellulosefasern, Holz usw.mit Phenolen
US1705424A (en) *	1924-09-30	1929-03-12	Strecker Otto Carl	Process for the production of cellulose by decomposition of vegetable fibers
DE2229673A1 (de) *	1972-06-19	1974-01-17	Schweers	Verfahren zur herstellung von phenolzellstoff
EP0043342B1 (en) *	1980-06-20	1983-12-07	Battelle Memorial Institute	A method for the delignification of wood and other ligno-cellulosic products
US4295928A (en) *	1980-08-07	1981-10-20	Nalco Chemical Company	Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching

1986
- 1986-05-28 FI FI862262A patent/FI75196C/fi not_active IP Right Cessation
1987
- 1987-05-26 FR FR8707401A patent/FR2599398B1/fr not_active Expired
- 1987-05-27 DE DE19873790278 patent/DE3790278T1/de not_active Withdrawn
- 1987-05-27 AT AT0901387A patent/AT395027B/de not_active IP Right Cessation
- 1987-05-27 WO PCT/FI1987/000071 patent/WO1987007314A1/en active Application Filing
1988
- 1988-01-19 SE SE8800152A patent/SE8800152L/xx not_active Application Discontinuation

Also Published As

Publication number	Publication date
FI75196C (fi)	1988-05-09
FI862262L (fi)	1987-11-29
FR2599398A1 (fr)	1987-12-04
SE8800152D0 (sv)	1988-01-19
FR2599398B1 (fr)	1989-01-13
SE8800152L (sv)	1988-01-19
WO1987007314A1 (en)	1987-12-03
FI75196B (fi)	1988-01-29
AT395027B (de)	1992-08-25
FI862262A0 (fi)	1986-05-28
ATA901387A (de)	1992-01-15

Publication	Publication Date	Title
IN171417B (ja)	1992-10-03
IN169727B (ja)	1991-12-14
AU7131891A (ja)	1991-05-23
AU6562586A (ja)	1986-11-24
AU7131791A (ja)	1992-02-20
AU5480786A (ja)	1986-11-20
AU5703286A (ja)	1986-06-12
AU5329886A (ja)	1986-06-10
AU5344086A (ja)	1986-10-14
AU5348186A (ja)	1986-03-13
AU5442686A (ja)	1986-11-20
AU5444986A (ja)	1986-10-14
AU5227086A (ja)	1986-11-13
AU5537386A (ja)	1986-08-26
AU5558386A (ja)	1986-11-13
AU5597686A (ja)	1986-11-06
AU5614386A (ja)	1986-11-27
AU5614486A (ja)	1986-11-27
AU5173485A (ja)	1986-09-25
AU5684886A (ja)	1986-11-13
AU5982886A (ja)	1986-12-16
AU5745586A (ja)	1986-11-20
AU5753186A (ja)	1986-12-16
AU5767086A (ja)	1986-10-21
AU5783386A (ja)	1986-11-06

Legal Events

Date	Code	Title	Description
1991-07-11	8128	New person/name/address of the agent	Representative=s name: TIEDTKE, H., DIPL.-ING. BUEHLING, G., DIPL.-CHEM.
1993-05-06	8139	Disposal/non-payment of the annual fee