ZA776987B - Delignification of lignocellulosic material with an alkaline liquor in the presence of a diels alder adduct of benzoquinone or naphthoquinone - Google Patents

Delignification of lignocellulosic material with an alkaline liquor in the presence of a diels alder adduct of benzoquinone or naphthoquinone

Info

Publication number: ZA776987B
Authority: ZA; South Africa
Prior art keywords: delignification; naphthoquinone; benzoquinone; lignocellulosic material; alder adduct
Prior art date: 1976-12-14

Application number

ZA00776987A

Other languages

English (en)

Inventor

H Holton

Original Assignee

Canadian Ind

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.)

1976-12-14

Filing date

1977-11-23

Publication date

1978-09-27

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25017917&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA776987(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1977-11-23 Application filed by Canadian Ind filed Critical Canadian Ind

1978-09-27 Publication of ZA776987B publication Critical patent/ZA776987B/xx

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
- D21C3/003—Pulping cellulose-containing materials with organic compounds

ZA00776987A 1976-12-14 1977-11-23 Delignification of lignocellulosic material with an alkaline liquor in the presence of a diels alder adduct of benzoquinone or naphthoquinone ZA776987B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/750,448 US4036681A (en)	1976-12-14	1976-12-14	Delignification of lignocellulosic material with an alkaline pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone

Publications (1)

Publication Number	Publication Date
ZA776987B true ZA776987B (en)	1978-09-27

Family

ID=25017917

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA00776987A ZA776987B (en)	1976-12-14	1977-11-23	Delignification of lignocellulosic material with an alkaline liquor in the presence of a diels alder adduct of benzoquinone or naphthoquinone

Country Status (14)

Country	Link
US (1)	US4036681A (es)
JP (1)	JPS5374104A (es)
AU (1)	AU507893B2 (es)
BR (1)	BR7708251A (es)
CA (1)	CA1096112A (es)
DE (1)	DE2755768A1 (es)
ES (1)	ES465039A1 (es)
FI (1)	FI69128C (es)
FR (1)	FR2374466A1 (es)
NO (1)	NO152342C (es)
NZ (1)	NZ185750A (es)
SE (1)	SE434857B (es)
SU (1)	SU890985A3 (es)
ZA (1)	ZA776987B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5374101A (en) *	1976-12-10	1978-07-01	Honshu Paper Co Ltd	Pulp making method
US4181565A (en) *	1976-12-10	1980-01-01	Honshu Seishi Kabushiki Kaisha	Process for cooking lignocellulosic material in the presence of hydroxyanthracenes and derivatives thereof
US4216054A (en) *	1977-09-26	1980-08-05	Weyerhaeuser Company	Low-consistency ozone delignification
JPS6059356B2 (ja) *	1977-12-05	1985-12-24	川崎化成工業株式会社	パルプの製造方法
JPS54106601A (en) *	1978-02-10	1979-08-21	Oji Paper Co	Alkali sulfide pulping method
FR2435457A1 (fr) *	1978-06-29	1980-04-04	Ugine Kuhlmann	Hexahydro-1,2,3,4,4a, 9a anthracene-dione-9,10, sa preparation et son application a la delignification des materiaux lignocellulosiques
US4405784A (en) *	1981-06-29	1983-09-20	Air Products And Chemicals, Inc.	Method of making triethylenediamine
RU2479619C2 (ru) *	2009-11-17	2013-04-20	Феликс Фердинандович Аухадеев	Пульсационное устройство для делигнификации целлюлозосодержащего растительного сырья и способ его работы

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1890040A (en) *	1928-05-07	1932-12-06	Gen Aniline Works Inc	Production of anthraquinone and derivatives thereof
JPS51112903A (en) *	1975-03-26	1976-10-05	Honshu Paper Co Ltd	Process for digesting lignocellulose material with sulphites
JPS5143403A (en) *	1974-10-09	1976-04-14	Honshu Paper Co Ltd	Arukariparupuno seizohoho
FI51833C (es) *	1975-03-18	1978-01-24	Ahlstroem Oy
CA1073161A (en) *	1975-09-05	1980-03-11	Canadian Industries Limited	Delignification process
JPS5374101A (en) *	1976-12-10	1978-07-01	Honshu Paper Co Ltd	Pulp making method

1976
- 1976-12-14 US US05/750,448 patent/US4036681A/en not_active Expired - Lifetime
1977
- 1977-11-18 CA CA291,210A patent/CA1096112A/en not_active Expired
- 1977-11-22 NZ NZ185750A patent/NZ185750A/xx unknown
- 1977-11-23 AU AU30868/77A patent/AU507893B2/en not_active Expired
- 1977-11-23 ZA ZA00776987A patent/ZA776987B/xx unknown
- 1977-12-07 JP JP14620577A patent/JPS5374104A/ja active Granted
- 1977-12-12 NO NO774266A patent/NO152342C/no unknown
- 1977-12-12 BR BR7708251A patent/BR7708251A/pt unknown
- 1977-12-13 SE SE7714131A patent/SE434857B/sv not_active IP Right Cessation
- 1977-12-13 FI FI773773A patent/FI69128C/fi not_active IP Right Cessation
- 1977-12-14 DE DE19772755768 patent/DE2755768A1/de not_active Withdrawn
- 1977-12-14 SU SU772553800A patent/SU890985A3/ru active
- 1977-12-14 FR FR7737737A patent/FR2374466A1/fr active Granted
- 1977-12-14 ES ES465039A patent/ES465039A1/es not_active Expired

Also Published As

Publication number	Publication date
CA1096112A (en)	1981-02-24
SU890985A3 (ru)	1981-12-15
NZ185750A (en)	1980-08-26
NO152342C (no)	1988-04-06
US4036681A (en)	1977-07-19
SE434857B (sv)	1984-08-20
SE7714131L (sv)	1978-06-15
NO774266L (no)	1978-06-15
FI69128C (fi)	1985-12-10
NO152342B (no)	1985-06-03
FR2374466A1 (fr)	1978-07-13
FR2374466B1 (es)	1982-07-09
ES465039A1 (es)	1978-12-01
JPS5374104A (en)	1978-07-01
FI773773A (fi)	1978-06-15
DE2755768A1 (de)	1978-06-15
AU3086877A (en)	1979-05-31
FI69128B (fi)	1985-08-30
BR7708251A (pt)	1978-09-05
JPS5345404B2 (es)	1978-12-06
AU507893B2 (en)	1980-02-28

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