NL7408641A - Cellulose prepn with low lignin content - by removing lignin from waste paper or cardboard with high lignin content - Google Patents
Cellulose prepn with low lignin content - by removing lignin from waste paper or cardboard with high lignin contentInfo
- Publication number
- NL7408641A NL7408641A NL7408641A NL7408641A NL7408641A NL 7408641 A NL7408641 A NL 7408641A NL 7408641 A NL7408641 A NL 7408641A NL 7408641 A NL7408641 A NL 7408641A NL 7408641 A NL7408641 A NL 7408641A
- Authority
- NL
- Netherlands
- Prior art keywords
- lignin
- lignin content
- cardboard
- cellulose
- prepn
- Prior art date
Links
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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
Cellulose with a lignin content of 1.5% for prodn of high quality paper is produced by removing lignin from waste paper or cardboard, and opt. other vegetable packaging material, esp. material based on wood wool and/or straw, that contains >1.5% lignin. Enables a high quality prod. to be produced from low quality waste matl. Avoids environmental pollution, such as occurs when the waste matl. is burned.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7408641A NL7408641A (en) | 1974-06-27 | 1974-06-27 | Cellulose prepn with low lignin content - by removing lignin from waste paper or cardboard with high lignin content |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7408641A NL7408641A (en) | 1974-06-27 | 1974-06-27 | Cellulose prepn with low lignin content - by removing lignin from waste paper or cardboard with high lignin content |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7408641A true NL7408641A (en) | 1975-12-30 |
Family
ID=19821633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7408641A NL7408641A (en) | 1974-06-27 | 1974-06-27 | Cellulose prepn with low lignin content - by removing lignin from waste paper or cardboard with high lignin content |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7408641A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5147503A (en) * | 1991-03-01 | 1992-09-15 | Domtar Inc. | Recycling waste cellulosic material with sodium sulphide digestion |
US5486268A (en) * | 1992-02-18 | 1996-01-23 | Domtar Inc. | Oxygen delignification of old corrugated containers |
US5538594A (en) * | 1992-04-06 | 1996-07-23 | Westvaco Corporation | Method for producing a blade coated paper from recycled, high lignin content, waste paper |
US5589030A (en) * | 1994-12-07 | 1996-12-31 | Rhone-Poulenc Inc. | Method for preparing vanillin from old newsprint |
-
1974
- 1974-06-27 NL NL7408641A patent/NL7408641A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5147503A (en) * | 1991-03-01 | 1992-09-15 | Domtar Inc. | Recycling waste cellulosic material with sodium sulphide digestion |
US5486268A (en) * | 1992-02-18 | 1996-01-23 | Domtar Inc. | Oxygen delignification of old corrugated containers |
US5538594A (en) * | 1992-04-06 | 1996-07-23 | Westvaco Corporation | Method for producing a blade coated paper from recycled, high lignin content, waste paper |
US5589030A (en) * | 1994-12-07 | 1996-12-31 | Rhone-Poulenc Inc. | Method for preparing vanillin from old newsprint |
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