FI840942A - Foerfarande foer taeckande av kemikaliefoerlusterna vid massaframstaellning. - Google Patents

Foerfarande foer taeckande av kemikaliefoerlusterna vid massaframstaellning. Download PDF

Info

Publication number: FI840942A
Authority: FI; Finland
Prior art keywords: taeckande; massaframstaellning; kemikaliefoerlusterna; vid; foerfarande foer
Prior art date: 1982-07-12

Application number

FI840942A

Other languages

English (en)

Other versions

FI70942C (fi

FI840942A0 (fi

FI70942B (fi

Inventor

Karl Bertil Pettersson

Original Assignee

Ahlstroem Oy

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.)

1982-07-12

Filing date

1984-03-08

Publication date

1984-03-08

1984-03-08 Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy

1984-03-08 Publication of FI840942A0 publication Critical patent/FI840942A0/fi

1984-03-08 Publication of FI840942A publication Critical patent/FI840942A/fi

1986-07-18 Application granted granted Critical

1986-07-18 Publication of FI70942B publication Critical patent/FI70942B/fi

1986-10-27 Publication of FI70942C publication Critical patent/FI70942C/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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/10—Concentrating spent liquor by evaporation
- D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0035—Introduction of compounds, e.g. sodium sulfate, into the cycle in order to compensate for the losses of pulping agents

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Paper (AREA)
Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Physical Or Chemical Processes And Apparatus (AREA)

FI840942A 1982-07-12 1984-03-08 Foerfarande foer taeckande av kemikaliefoerlusterna vid massaframstaellning FI70942C (fi)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
SE8204266		1982-07-12
SE8204266A SE8204266L (sv)	1982-07-12	1982-07-12	Forfarande for teckande av kemikalieforlusterna vid massaframstellning
SE8300280		1983-01-20
PCT/SE1983/000280 WO1984000390A1 (en)	1982-07-12	1983-07-11	Method of covering the chemical losses in pulp production

Publications (4)

Publication Number	Publication Date
FI840942A0 FI840942A0 (fi)	1984-03-08
FI840942A true FI840942A (fi)	1984-03-08
FI70942B FI70942B (fi)	1986-07-18
FI70942C FI70942C (fi)	1986-10-27

Family

ID=20347353

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI840942A FI70942C (fi)	1982-07-12	1984-03-08	Foerfarande foer taeckande av kemikaliefoerlusterna vid massaframstaellning

Country Status (9)

Country	Link
US (1)	US4533433A (fi)
EP (1)	EP0113754B1 (fi)
JP (1)	JPS59501218A (fi)
CA (1)	CA1214003A (fi)
ES (1)	ES524018A0 (fi)
FI (1)	FI70942C (fi)
PT (1)	PT77003B (fi)
SE (2)	SE8204266L (fi)
WO (1)	WO1984000390A1 (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE452995B (sv) *	1985-03-08	1988-01-04	Asea Ab	Reglering av lutatervinningsaggregat
FI75615C (fi) *	1985-11-29	1991-08-26	Ahlstroem Oy	Foerfarande foer saenkning av svartlutens viskositet.
DE3834716A1 (de) *	1988-10-12	1990-04-19	Metallgesellschaft Ag	Verfahren und vorrichtung zum aufkonzentrieren von loesungen
FI92226B (fi) *	1991-04-15	1994-06-30	Ahlstroem Oy	Menetelmä jäteliemen väkevöimiseksi ja keittokemikaalien talteenottamiseksi massanvalmistuksessa alkoholipohjaisilla keittoliuoksilla
SE505603C2 (sv) *	1994-10-20	1997-09-22	Kvaerner Pulping Tech	Metod att slutindunsta svartlut i flera steg där luten förs i serie genom stegen och primärånga tillförs varje steg
JP2007063696A (ja) *	2005-08-30	2007-03-15	Hakuto Co Ltd	黒液濃縮エバポレータのスケール洗浄方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE183628C1 (fi) *		1963-01-01
US3286763A (en) *	1964-10-19	1966-11-22	Jacoby Process Equipment Co In	Recovering heat from a blow evaporator for use in a surface evaporator
US3299942A (en) *	1964-06-29	1967-01-24	Jacoby Process Equipment Co In	Method and apparatus for the concentration of liquids
US3289736A (en) *	1964-06-30	1966-12-06	Rosenblad Corp	Temperature control for evaporation system
SE319962B (fi) *	1968-05-10	1970-01-26	Mo Och Domsjoe Ab
FI51605C (fi) *	1975-01-20	1977-02-10	Ahlstroem Oy	Tapa ja laite nesteiden haihduttamiseksi.
JPS5831961B2 (ja) *	1976-04-20	1983-07-09	株式会社荏原製作所	濃縮装置のスイツチング運転方法
NZ185958A (en) *	1976-12-22	1979-11-01	Hooker Chemicals Plastics Corp	Pulping liquor recyling;comination with sulphur cycle in bleaching plant
DE3225337C2 (de) *	1982-07-07	1986-10-16	Hermann Dr. 4400 Münster Stage	Verfahren zum Entsalzen von Rohtallöl

1982
- 1982-07-12 SE SE8204266A patent/SE8204266L/ not_active Application Discontinuation
1983
- 1983-07-08 PT PT77003A patent/PT77003B/pt unknown
- 1983-07-11 US US06/598,307 patent/US4533433A/en not_active Expired - Fee Related
- 1983-07-11 ES ES524018A patent/ES524018A0/es active Granted
- 1983-07-11 JP JP58502453A patent/JPS59501218A/ja active Granted
- 1983-07-11 EP EP83902318A patent/EP0113754B1/en not_active Expired
- 1983-07-11 WO PCT/SE1983/000280 patent/WO1984000390A1/en active IP Right Grant
- 1983-07-18 CA CA000432590A patent/CA1214003A/en not_active Expired
1984
- 1984-03-08 FI FI840942A patent/FI70942C/fi not_active IP Right Cessation
1989
- 1989-11-07 SE SE8903724A patent/SE467361B/sv not_active Application Discontinuation

Also Published As

Publication number	Publication date
JPS59501218A (ja)	1984-07-12
CA1214003A (en)	1986-11-18
US4533433A (en)	1985-08-06
SE8204266L (sv)	1984-01-13
FI70942C (fi)	1986-10-27
FI840942A0 (fi)	1984-03-08
EP0113754B1 (en)	1986-06-25
PT77003A (en)	1983-08-01
ES8404445A1 (es)	1984-04-16
SE8204266D0 (sv)	1982-07-12
PT77003B (en)	1986-01-24
FI70942B (fi)	1986-07-18
WO1984000390A1 (en)	1984-02-02
ES524018A0 (es)	1984-04-16
SE8903724D0 (sv)	1989-11-07
SE8903724L (sv)	1989-11-07
SE467361B (sv)	1992-07-06
EP0113754A1 (en)	1984-07-25
JPH026879B2 (fi)	1990-02-14

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Legal Events

Date	Code	Title	Description
1995-02-15	MM	Patent lapsed
2004-08-31	MM	Patent lapsed	Owner name: A. AHLSTROEM OSAKEYHTIOE