JPS6327477B2 - - Google Patents
Info
- Publication number
- JPS6327477B2 JPS6327477B2 JP8420680A JP8420680A JPS6327477B2 JP S6327477 B2 JPS6327477 B2 JP S6327477B2 JP 8420680 A JP8420680 A JP 8420680A JP 8420680 A JP8420680 A JP 8420680A JP S6327477 B2 JPS6327477 B2 JP S6327477B2
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- delignification
- paper
- unbleached
- deinking
- 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
- 239000007788 liquid Substances 0.000 claims description 25
- 239000000123 paper Substances 0.000 claims description 21
- 239000010893 paper waste Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 13
- 238000010411 cooking Methods 0.000 claims description 11
- 239000002655 kraft paper Substances 0.000 claims description 9
- 229920005610 lignin Polymers 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 5
- 239000007791 liquid phase Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 239000002761 deinking Substances 0.000 description 22
- 239000002699 waste material Substances 0.000 description 11
- 239000003513 alkali Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000004061 bleaching Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 239000011111 cardboard Substances 0.000 description 8
- 239000007844 bleaching agent Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Paper (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8420680A JPS5716990A (en) | 1980-06-21 | 1980-06-21 | Production of bleached pulp capble being compounded in printing paper from unbleached waste paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8420680A JPS5716990A (en) | 1980-06-21 | 1980-06-21 | Production of bleached pulp capble being compounded in printing paper from unbleached waste paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5716990A JPS5716990A (en) | 1982-01-28 |
| JPS6327477B2 true JPS6327477B2 (de) | 1988-06-03 |
Family
ID=13824004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8420680A Granted JPS5716990A (en) | 1980-06-21 | 1980-06-21 | Production of bleached pulp capble being compounded in printing paper from unbleached waste paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5716990A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ247276A (en) * | 1992-04-06 | 1994-12-22 | Westvaco Corp | Production of papermaking fibre of low lignin content from recycled high lignin waste paper; mixtures with fresh pulp and products produced therefrom |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936902A (de) * | 1972-08-23 | 1974-04-05 | ||
| JPS50138101A (de) * | 1974-04-23 | 1975-11-04 |
-
1980
- 1980-06-21 JP JP8420680A patent/JPS5716990A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936902A (de) * | 1972-08-23 | 1974-04-05 | ||
| JPS50138101A (de) * | 1974-04-23 | 1975-11-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5716990A (en) | 1982-01-28 |
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