DE312618C - - Google Patents
Info
- Publication number
- DE312618C DE312618C DENDAT312618D DE312618DA DE312618C DE 312618 C DE312618 C DE 312618C DE NDAT312618 D DENDAT312618 D DE NDAT312618D DE 312618D A DE312618D A DE 312618DA DE 312618 C DE312618 C DE 312618C
- Authority
- DE
- Germany
- Prior art keywords
- paper
- solution
- waste paper
- pulp
- temperature
- 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
- 239000010893 paper waste Substances 0.000 claims description 28
- 229920001131 Pulp (paper) Polymers 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 229910021538 borax Inorganic materials 0.000 claims description 8
- 239000004328 sodium tetraborate Substances 0.000 claims description 8
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 159000000011 group IA salts Chemical class 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims 2
- 238000012986 modification Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- 238000002845 discoloration Methods 0.000 description 9
- 239000000835 fiber Substances 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 239000012670 alkaline solution Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 229940072033 potash Drugs 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 235000015320 potassium carbonate Nutrition 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000021395 porridge Nutrition 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 241000208202 Linaceae Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- -1 fatty acid alkali salts Chemical class 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191209503T | 1912-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE312618C true DE312618C (enrdf_load_stackoverflow) | 1900-01-01 |
Family
ID=32368088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT312618D Expired DE312618C (enrdf_load_stackoverflow) | 1912-04-22 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE312618C (enrdf_load_stackoverflow) |
| FR (1) | FR444703A (enrdf_load_stackoverflow) |
| GB (1) | GB191209503A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673148A (en) * | 1950-10-04 | 1954-03-23 | Hercules Powder Co Ltd | Alkaline pulping using gaseous oxygen |
-
0
- DE DENDAT312618D patent/DE312618C/de not_active Expired
-
1912
- 1912-04-22 GB GB191209503D patent/GB191209503A/en not_active Expired
- 1912-06-06 FR FR444703D patent/FR444703A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673148A (en) * | 1950-10-04 | 1954-03-23 | Hercules Powder Co Ltd | Alkaline pulping using gaseous oxygen |
Also Published As
| Publication number | Publication date |
|---|---|
| GB191209503A (en) | 1913-01-09 |
| FR444703A (fr) | 1912-10-24 |
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