GB1206550A - Method of decontaminating reclaimed paper - Google Patents
Method of decontaminating reclaimed paperInfo
- Publication number
- GB1206550A GB1206550A GB41708/69A GB4170869A GB1206550A GB 1206550 A GB1206550 A GB 1206550A GB 41708/69 A GB41708/69 A GB 41708/69A GB 4170869 A GB4170869 A GB 4170869A GB 1206550 A GB1206550 A GB 1206550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- vortex
- paper
- slurry
- water
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 abstract 4
- 239000000356 contaminant Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 230000005484 gravity Effects 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
1,206,550. Centrifuging paper stock. BERGSTROM PAPER CO. 21 Aug., 1969 [4 June, 1969], No. 41708/69. Heading B2P. In a process of de-contaminating reclaimed paper, a slurry of water and defibered, contaminated fibre stock obtained from the paper is fed into a hydrocyclone to create therein a vortex and a first part of the slurry relatively enriched by fibres is extracted from an outer region of the vortex while the remainder of the slurry relatively enriched by contaminants is extracted from an inner region of the vortex. The migration of the fibres to the outer region of the vortex, while the contaminants are left in the outer region, may be obtained as a result of the relation existing between the cross sectional size of the overflow and underflow outlets. In a typical example the diameter of the overflow outlet is 5/8" and that of the underflow 1/2". The slurry may have a consistancy of 0.10% to 1.50% and may be fed at a pressure of 40 to 100 p.s.i.g. The contaminants include those with a specific gravity less than that of water, e.g. plastics polymers, adhesives, &c. and those with a specific gravity greater than that of water and that of fibres, e.g. clays, pigment fillers and ink particles. The latter because of their minute size and/or platelike shape have a higher coefficient of hydraulic, drag as compared with the fibres, and are therefore held back in greater degree that the fibres from their natural tendency to migrate to the outer portion of the vortex.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83039569A | 1969-06-04 | 1969-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1206550A true GB1206550A (en) | 1970-09-23 |
Family
ID=25256911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB41708/69A Expired GB1206550A (en) | 1969-06-04 | 1969-08-21 | Method of decontaminating reclaimed paper |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS4833407B1 (en) |
| GB (1) | GB1206550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3849245A (en) * | 1972-02-09 | 1974-11-19 | Black Clawson Fibreclaim Inc | Separation of greasy liquids and recovery of paper fiber from municipal refuse |
| US3849246A (en) * | 1972-10-02 | 1974-11-19 | Black Clawson Fibreclaim Inc | Recovery of paper fiber from waste material contaminated with grease, wax and/or similar material |
| WO2012101466A1 (en) * | 2011-01-27 | 2012-08-02 | Bohorquez John | System for transforming plastic polymer films and paper with or without adhesives and silicones into plastic compounds by means of a vortex device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5720255B2 (en) * | 2011-01-12 | 2015-05-20 | セイコーエプソン株式会社 | Paper recycling apparatus and paper recycling method |
| JP5720257B2 (en) * | 2011-01-14 | 2015-05-20 | セイコーエプソン株式会社 | Paper recycling equipment |
| JP5720258B2 (en) * | 2011-01-14 | 2015-05-20 | セイコーエプソン株式会社 | Paper recycling apparatus and paper recycling method |
| EP2664708B1 (en) * | 2011-01-12 | 2017-04-12 | Seiko Epson Corporation | Paper recycling system and paper recycling process |
-
1969
- 1969-08-21 GB GB41708/69A patent/GB1206550A/en not_active Expired
-
1970
- 1970-03-12 JP JP45020536A patent/JPS4833407B1/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3849245A (en) * | 1972-02-09 | 1974-11-19 | Black Clawson Fibreclaim Inc | Separation of greasy liquids and recovery of paper fiber from municipal refuse |
| US3849246A (en) * | 1972-10-02 | 1974-11-19 | Black Clawson Fibreclaim Inc | Recovery of paper fiber from waste material contaminated with grease, wax and/or similar material |
| WO2012101466A1 (en) * | 2011-01-27 | 2012-08-02 | Bohorquez John | System for transforming plastic polymer films and paper with or without adhesives and silicones into plastic compounds by means of a vortex device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4833407B1 (en) | 1973-10-13 |
| DE2001285A1 (en) | 1970-12-10 |
| DE2001285B2 (en) | 1977-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |