GB1325505A - Method for reclaiming pulp from waste papers - Google Patents
Method for reclaiming pulp from waste papersInfo
- Publication number
- GB1325505A GB1325505A GB1325505DA GB1325505A GB 1325505 A GB1325505 A GB 1325505A GB 1325505D A GB1325505D A GB 1325505DA GB 1325505 A GB1325505 A GB 1325505A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulp
- alkali metal
- waste paper
- bleaching
- process comprises
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- D21C5/025—De-inking
- D21C5/027—Chemicals therefor
-
- 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
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
Abstract
1325505 Reclaiming pulp from waste papers WASTE PAPER RECLAMATION CORP 2 Aug 1971 36156/71 Heading D2W A composition for use in a waste paper recovery process comprises an alkali metal hydroxide, an alkali metal carbonate, an alkali metal or ammonium phosphate, and an alkali metal borate. The process comprises cooking the waste paper in an aqueous solution of the above composition to form a pulp, separating the pulp, washing with water, further pulping the washed pulp and bleaching it, and finally washing the bleached pulp with water. Cooking may be carried out at a temperature from 180F-212F. Further pulping may be carried out using a hydropulper, hollander, or jordan. Bleaching may be effected using sodium hypochlorite.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3398870A | 1970-05-01 | 1970-05-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1325505A true GB1325505A (en) | 1973-08-01 |
Family
ID=21873627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1325505D Expired GB1325505A (en) | 1970-05-01 | 1971-08-02 | Method for reclaiming pulp from waste papers |
Country Status (4)
Country | Link |
---|---|
US (1) | US3620909A (en) |
AU (1) | AU467596B2 (en) |
FR (1) | FR2148992A5 (en) |
GB (1) | GB1325505A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360512A (en) * | 1989-03-15 | 1994-11-01 | Woodfree Limited | Method and product for treating waste paper material |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767524A (en) * | 1970-05-01 | 1973-10-23 | World Wide Paper Reclamation I | Composition for reclaiming pulp from waste papers |
US3766001A (en) * | 1971-08-17 | 1973-10-16 | World Wide Paper Reclamation I | Reclaiming pulp from waste papers by treating with a solution of sodium hydroxide, sodium carbonate, sodium or ammonium bicarbonate, and sodium borate |
US3884750A (en) * | 1972-09-25 | 1975-05-20 | Little Inc A | Method of recovering separate fiber fractions from corrugated board |
US3873411A (en) * | 1973-06-29 | 1975-03-25 | Johnson & Johnson | Methods of recovering reusable fibers |
US4278471A (en) * | 1979-10-05 | 1981-07-14 | Carl Eugene Dedlow | Process for extracting sugar from cellulose and cellulosic materials |
US6001218A (en) * | 1994-06-29 | 1999-12-14 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from old newspaper |
US6074527A (en) * | 1994-06-29 | 2000-06-13 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from coarse cellulosic fibers |
US5582681A (en) * | 1994-06-29 | 1996-12-10 | Kimberly-Clark Corporation | Production of soft paper products from old newspaper |
US6296736B1 (en) | 1997-10-30 | 2001-10-02 | Kimberly-Clark Worldwide, Inc. | Process for modifying pulp from recycled newspapers |
US6387210B1 (en) | 1998-09-30 | 2002-05-14 | Kimberly-Clark Worldwide, Inc. | Method of making sanitary paper product from coarse fibers |
US6716310B2 (en) * | 2001-12-31 | 2004-04-06 | Kimberly-Clark Worldwide, Inc. | Process for manufacturing a cellulosic paper product exhibiting reduced malodor |
CN102535225A (en) * | 2011-12-31 | 2012-07-04 | 广东轻工职业技术学院 | Repulping method of packing paper container and application thereof |
CN109112872B (en) * | 2018-10-25 | 2023-12-05 | 厦门中乾机械有限公司 | Multifunctional pulping machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE380172A (en) * | 1930-12-02 | 1900-01-01 |
-
1970
- 1970-05-01 US US3620909D patent/US3620909A/en not_active Expired - Lifetime
-
1971
- 1971-08-02 GB GB1325505D patent/GB1325505A/en not_active Expired
- 1971-08-03 AU AU31939/71A patent/AU467596B2/en not_active Expired
- 1971-08-12 FR FR7129501A patent/FR2148992A5/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360512A (en) * | 1989-03-15 | 1994-11-01 | Woodfree Limited | Method and product for treating waste paper material |
Also Published As
Publication number | Publication date |
---|---|
DE2139040B2 (en) | 1975-04-10 |
AU3193971A (en) | 1973-02-08 |
DE2139040A1 (en) | 1973-02-15 |
US3620909A (en) | 1971-11-16 |
FR2148992A5 (en) | 1973-03-23 |
AU467596B2 (en) | 1975-12-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |