FI782342A - FOER FARING FOR FRAMSTAELLNING AV PAPPERSMASSA - Google Patents

FOER FARING FOR FRAMSTAELLNING AV PAPPERSMASSA

Info

Publication number: FI782342A
Authority: FI; Finland
Prior art keywords: pappersmassa; framstaellning; foer faring; faring; foer
Prior art date: 1977-07-29

Application number

FI782342A

Other languages

Finnish (fi)

Other versions

FI70440B (en

FI70440C (en

Inventor

Dominique Lachenal

Christian De Choudens

Pierre Monzie

Original Assignee

Ugine Kuhlmann

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.)

1977-07-29

Filing date

1978-07-27

Publication date

1979-01-30

1977-07-29 Priority claimed from FR7724131A external-priority patent/FR2398839A1/en

1978-07-05 Priority claimed from FR7820715A external-priority patent/FR2430475A2/en

1978-07-27 Application filed by Ugine Kuhlmann filed Critical Ugine Kuhlmann

1979-01-30 Publication of FI782342A publication Critical patent/FI782342A/en

1986-03-27 Publication of FI70440B publication Critical patent/FI70440B/en

1986-09-19 Application granted granted Critical

1986-09-19 Publication of FI70440C publication Critical patent/FI70440C/en

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
- D21C3/26—Multistage processes

FI782342A 1977-07-29 1978-07-27 FOER FARING FOR CHEMICAL PAPER MACHINERY FI70440C (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
FR7724131A FR2398839A1 (en)	1977-07-29	1977-07-29	Kraft type paper pulp prepn. without sulphur pollutants - by treating shavings with sodium hydroxide followed by stabilised peroxide
FR7724131		1977-07-29
FR7820715A FR2430475A2 (en)	1978-07-05	1978-07-05	Paper pulp mfr. by digestion with caustic soda and peroxide - avoiding pollution and giving results comparable with Kraft process
FR7820715		1978-07-05

Publications (3)

Publication Number	Publication Date
FI782342A true FI782342A (en)	1979-01-30
FI70440B FI70440B (en)	1986-03-27
FI70440C FI70440C (en)	1986-09-19

Family

ID=26220161

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI782342A FI70440C (en)	1977-07-29	1978-07-27	FOER FARING FOR CHEMICAL PAPER MACHINERY

Country Status (10)

Country	Link
AT (1)	AT371860B (en)
BE (1)	BE869153A (en)
CA (1)	CA1128260A (en)
CH (1)	CH634362A5 (en)
DE (1)	DE2833115C3 (en)
ES (1)	ES472184A1 (en)
FI (1)	FI70440C (en)
IT (1)	IT1160561B (en)
NO (1)	NO151975C (en)
SE (1)	SE439172B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2493365A1 (en) *	1980-11-06	1982-05-07	Tech Ind Papiers Carton Centre	PROCESS FOR THE MANUFACTURE OF CHEMICAL PAPER PULP AND PASTE THUS OBTAINED
IT202000019033A1 (en) *	2020-08-03	2022-02-03	Davide Bertinazzo	METHOD FOR OBTAINING A PRECURSOR OF A WOOD-INORGA HYBRID MATERIAL AND METHOD FOR OBTAINING A WOOD-INORGA HYBRID MATERIAL

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA895756A (en) *	1970-04-03	1972-03-21	Macmillan Bloedel Limited	Two-stage soda-oxygen pulping
DE2327900C3 (en) *	1973-06-01	1985-02-07	Degussa Ag, 6000 Frankfurt	Bleaching of cellulose with considerably reduced use of chlorine
CA1073161A (en) *	1975-09-05	1980-03-11	Canadian Industries Limited	Delignification process

1978
- 1978-07-20 BE BE189399A patent/BE869153A/en not_active IP Right Cessation
- 1978-07-26 NO NO78782573A patent/NO151975C/en unknown
- 1978-07-27 FI FI782342A patent/FI70440C/en not_active IP Right Cessation
- 1978-07-27 CA CA308,295A patent/CA1128260A/en not_active Expired
- 1978-07-27 AT AT0546578A patent/AT371860B/en not_active IP Right Cessation
- 1978-07-27 SE SE7808202A patent/SE439172B/en not_active IP Right Cessation
- 1978-07-28 CH CH815678A patent/CH634362A5/en not_active IP Right Cessation
- 1978-07-28 ES ES472184A patent/ES472184A1/en not_active Expired
- 1978-07-28 IT IT68812/78A patent/IT1160561B/en active
- 1978-07-28 DE DE2833115A patent/DE2833115C3/en not_active Expired

Also Published As

Publication number	Publication date
FI70440B (en)	1986-03-27
NO151975B (en)	1985-04-01
NO151975C (en)	1985-07-10
ATA546578A (en)	1982-12-15
AT371860B (en)	1983-08-10
BE869153A (en)	1979-01-22
DE2833115A1 (en)	1979-02-08
IT1160561B (en)	1987-03-11
DE2833115B2 (en)	1980-07-03
CA1128260A (en)	1982-07-27
IT7868812A0 (en)	1978-07-28
SE439172B (en)	1985-06-03
FI70440C (en)	1986-09-19
DE2833115C3 (en)	1986-04-17
SE7808202L (en)	1979-01-30
CH634362A5 (en)	1983-01-31
ES472184A1 (en)	1979-02-16
NO782573L (en)	1979-01-30

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Legal Events

Date	Code	Title	Description
1995-02-15	MM	Patent lapsed
2004-08-31	MM	Patent lapsed	Owner name: PRODUITS CHIMIQUES UGINE KUHLMANN