NL7214950A - - Google Patents
Info
- Publication number
- NL7214950A NL7214950A NL7214950A NL7214950A NL7214950A NL 7214950 A NL7214950 A NL 7214950A NL 7214950 A NL7214950 A NL 7214950A NL 7214950 A NL7214950 A NL 7214950A NL 7214950 A NL7214950 A NL 7214950A
- Authority
- NL
- Netherlands
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
-
- 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19748571A | 1971-11-10 | 1971-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7214950A true NL7214950A (en) | 1973-05-14 |
Family
ID=22729602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7214950A NL7214950A (en) | 1971-11-10 | 1972-11-06 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4861706A (en) |
| BE (1) | BE791246A (en) |
| CA (1) | CA980513A (en) |
| DE (1) | DE2254862A1 (en) |
| FR (1) | FR2160058A5 (en) |
| GB (1) | GB1396139A (en) |
| IT (1) | IT970342B (en) |
| NL (1) | NL7214950A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244777A (en) | 1979-11-07 | 1981-01-13 | Weyerhaeuser Company | Bleaching stilbene yellow dyed wood pulp |
| DE3937932A1 (en) * | 1989-11-15 | 1991-05-16 | Holtzmann & Cie Ag E | Delignification and bleaching of pulp with alkali chlorite - by adding chlorite before acidification to produce nascent reagent, minimising pollution |
| JPH03294589A (en) * | 1990-04-09 | 1991-12-25 | Sanyo Kokusaku Pulp Co Ltd | Treatment of unclassified waste information-recording paper |
| JPH0819630B2 (en) * | 1991-07-29 | 1996-02-28 | 日本製紙株式会社 | Method of erasing fluorescence in waste paper |
| US6315863B1 (en) | 1998-06-18 | 2001-11-13 | Weyerhaeuser Company | Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate |
| US7377993B2 (en) * | 2004-03-03 | 2008-05-27 | Tanya Smith Richardson | Methods for reducing fluorescence in pulp and paper |
| CN103526629B (en) * | 2013-10-23 | 2014-12-31 | 齐鲁工业大学 | Pulping process of waste paper with high wet strength |
-
0
- BE BE791246D patent/BE791246A/en unknown
-
1972
- 1972-11-03 GB GB5085972A patent/GB1396139A/en not_active Expired
- 1972-11-06 CA CA155,695A patent/CA980513A/en not_active Expired
- 1972-11-06 NL NL7214950A patent/NL7214950A/xx unknown
- 1972-11-07 FR FR7239333A patent/FR2160058A5/fr not_active Expired
- 1972-11-08 JP JP11197972A patent/JPS4861706A/ja active Pending
- 1972-11-09 DE DE2254862A patent/DE2254862A1/en active Pending
- 1972-11-09 IT IT3146172A patent/IT970342B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2160058A5 (en) | 1973-06-22 |
| GB1396139A (en) | 1975-06-04 |
| CA980513A (en) | 1975-12-30 |
| DE2254862A1 (en) | 1973-05-17 |
| IT970342B (en) | 1974-04-10 |
| BE791246A (en) | 1973-05-10 |
| JPS4861706A (en) | 1973-08-29 |