CS272485B1 - Method of pulp production from waste paper with high content of wood-containing parts - Google Patents
Method of pulp production from waste paper with high content of wood-containing parts Download PDFInfo
- Publication number
- CS272485B1 CS272485B1 CS882452A CS245288A CS272485B1 CS 272485 B1 CS272485 B1 CS 272485B1 CS 882452 A CS882452 A CS 882452A CS 245288 A CS245288 A CS 245288A CS 272485 B1 CS272485 B1 CS 272485B1
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- CS
- Czechoslovakia
- Prior art keywords
- paper
- waste paper
- wood
- pulp
- high content
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000010893 paper waste Substances 0.000 title claims description 6
- 239000002023 wood Substances 0.000 title claims description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 3
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 2
- 238000003306 harvesting Methods 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 244000182625 Dictamnus albus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 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)
Abstract
Riešania spadá do oblasti chómis. □ano podstata spočívá v tom, že sa zbarový papier delignifikuje kysličnlkom chloričitým v množstva 1 až 150% hmot., počítané na hmotnost a. s. Zbarovóho papiara pri teplota 25 až 75 °C, počas 1 až 7 hodin, pričom pomar zbarového papiara k roztoku js 1:1 až 1:50. t Sposob sa dá využívat v celulozo-papiersnskom prismysls pri výrobs buničin zo zberového papiara.Solutions fall into the field of chomis. Ata Yes, the essence is that it is colored paper delignifies with chlorine dioxide in an amount of 1 to 150 wt to weight a. with. Zbarovo's paper at 25 to 75 ° C, for 1 to 7 hours, wherein the ratio of the colored paper to the solution js 1: 1 to 1:50. T The method can be used in cellulozo-papiersnskom prismysls in the production of pulp from harvest papiara.
Description
Vynález sa týká spoaobu výroby buničín zo zberového papieru s vysokým obsahon dřevitých podielov (vláknin).The invention relates to a process for the production of pulps from recovered paper with a high content of wood fractions.
Zberový papier ako napr. noviny, niektoré druhy časopisov, brožúr a knih, telefonne zoznamy a pod. sa v súčasnosti vo svete skoro výhradně spracovávajú syetémom De-Inking, ktorého princip spočívá v odstraňovaní tlačiarenských farieb z rozvlákneného zberového papiera a takto připravená látka Js vhodná ako zanáška iba do niektorých sortimentov vyrábanýoh papierov, čo je názorné popísané v PPI oct. 1982.Waste paper such as newspapers, certain types of magazines, brochures and books, telephone directories, etc. are currently processed almost exclusively in the world by the De-Inking system, the principle of which consists in removing printing inks from pulped waste paper, and the thus prepared substance Js suitable as a feed only in some assortments of produced papers, which is clearly described in PPI oct. 1982.
Princip odstraňovania tlačiarenských farieb popisuje celý rad patentov, napr. aj čsl. patenty 175 69S a 205 602, ktoré umožňujú odstránit tlačiarenské farby v potenciálnom víre. Sálej je známy flotačný systém odstraňovania tlačiarenských farieb z tohoto druhu papiera na zariadeniach firmy Voith-NSR, Escher Wyss-švajciarsko, Beloit-Anglicko, PAMA-NOR a pod. Dedným z nedostatkov týchto pokusov je, že sú prakticky neúčinné na ofsatovú tlač rotopapiera s použitím rýchlo vytvrdzovaných farieb, ktorá technologie je dnes vo svete běžná. Nevýhodou Je ej značná chúlostivost flotačných zariadení na dodržanie presnej zanášky zberového papiera z hladiska homogenity vlákien.The principle of ink removal is described in a number of patents, e.g. also Czechoslovakia. patents 175 69S and 205 602, which make it possible to remove printing inks in a potential manner. The hall is known for its flotation system for removing inks from this type of paper on Voith-NSR, Escher Wyss-Switzerland, Beloit-England, PAMA-NOR and the like. One of the shortcomings of these experiments is that they are virtually ineffective for offset printing of exercise paper using fast-curing inks, a technology that is common in the world today. The disadvantage is the considerable sensitivity of the flotation devices to maintain the exact loading of the recovered paper from the point of view of the homogeneity of the fibers.
Výrobu buničiny zo zberového papiera popisujú autoři vynálezu AO 248 451 Doc. Ing. Ladislav šutý, CSc. a i. Tento vynález popisuje tlakové postupy a nezahrnuje všetky dostupné a účinné činidlá, ktoré sú ekonomicky výhodné.The production of pulp from recovered paper is described by the authors of the invention AO 248 451 Doc. Ing. Ladislav Suty, CSc. and i. The present invention describes pressure processes and does not include all available and effective agents that are economically advantageous.
Doterajšis nevýhody sú odstránené vynálezem, ktorého podstata spočívá v tom, že sa zberový papier s vysokým obsahem dřevitých podielov (vláknin) delignifikuje vodným roztokem ClOg připraveným běžnými procesmi (podlá postupu Kesting, Mathieson, ERCO 2 až 7 a i) alebo uvolněným z NaC102 prídavkom kyseliny (napr. octovéj) v množstva 1 až 150% hmot, počítané na hmotnost a. s. zbarového papiera, pri pomere zberového papiera k roztoku 1:1 až 1:50, při teplotách 25° až 75 °C (beztlakove) za čas 1 až 7 hod.The existing disadvantages are eliminated by the invention, the essence of which consists in that the recovered paper with a high content of wood particles (fibers) is delignified with an aqueous solution of ClOg prepared by conventional processes (according to Kesting, Mathieson, ERCO 2 to 7 ai) or released from NaC10 2 by addition acid (e.g. acetic acid) in an amount of 1 to 150% by weight, based on the weight of the colored paper, at a recovery paper to solution ratio of 1: 1 to 1:50, at temperatures of 25 ° to 75 ° C (pressureless) for a time of 1 to 7 o'clock
Pri tomto sposoba výroby buničín použitím kysličníka chloričitého dochádza k oxidačnému procesu, ktorým sa dosahujú vysoké mechanické pevnosti. Například pri doteraz používanom sposobe přípravy buničín pri výtažku 80 - 85 % sa dosiahla tržná dížka do 4 km. Pri použití sposobu podlá vynálezu tržná dížka stúpla přitom istom výtažku na 6,5 km.In this process of pulp production using chlorine dioxide, an oxidation process takes place, which achieves high mechanical strength. For example, with the hitherto used pulp preparation process at a yield of 80-85%, a market length of up to 4 km has been achieved. Using the process according to the invention, the market length increased to 6.5 km in the same yield.
Balšou výhodou sposobu je skutečnost, že sa pracuje pri podstatné nižších teplotách (25 až 75 °C) a sposob Js beztlakový. Sposob bol odskúšaný v laboratérnom a prevádzkovom měřítku. Dá sa využívat v celulozo-papierenskom priemysle pri výrobě buničín zo zberového papisra.A more obvious advantage of the process is the fact that it is operated at substantially lower temperatures (25 to 75 ° C) and the process is pressureless. The method was tested on a laboratory and operational scale. It can be used in the pulp and paper industry in the production of pulp from recovered paper.
Příklad 1Example 1
Na 25 kg vzduchosuchého zberového papiera sa přidá 625 1 vodného roztoku s obsahám 1% C102 vztíahnuté na hmotnost papiera a zohrieva sa v nádobě (bsztlakove) pri 75 °C za čas 4 hod. Získá sa buničina s výtažkom 32%,' tržnou dížkou 3,3 km a pevnostou v priatlaku 120 kPa.625 l of an aqueous solution containing 1% of C10 2, based on the weight of the paper, are added to 25 kg of air-dried waste paper and heated in a vessel (bsztlakove) at 75 ° C for 4 hours. Pulp is obtained in a yield of 32%, a market length of 3.3 km and a compressive strength of 120 kPa.
Příklad 2Example 2
Ako příklad 1 s tým, že množstvo přidaného C102 js 23%, vztíahnuté na hmotnost papiera, reakcia prebieha pri tej istej teplete počas 2 hod. Získá sa buničina s výtažkom 85% počítané na zanášku zberového novinového papiera s tržnou dížkou 6,5 km a pevnostou v pristlaku 220 kPa.As in Example 1, provided that the amount of C10 2 added is 23%, based on the weight of the paper, the reaction is carried out at the same temperature for 2 hours. Pulp is obtained with a yield of 85% calculated on the collection of recovered newsprint with a market length of 6.5 km and a compressive strength of 220 kPa.
Příklad 3Example 3
Ako příklad 1 s tým, žs množstvo přidaného C102 je 128% vztiahnuté na hmotnost papiera a čas trvania spracovania Je 6 hod. Získá sa buničina s výtažkom 76%, tržnou dížkou 9,5 km a pevnostou v prietlaku 460 kPa.As Example 1, the amount of C10 2 added is 128% based on the weight of the paper and the processing time is 6 hours. Pulp is obtained with a yield of 76%, a market length of 9.5 km and a compressive strength of 460 kPa.
CS 272 485 BlCS 272 485 Bl
Přiklad 4Example 4
Ako příklad 1 s tým, že množstvo přidaného C102 je 8% vztiahnuté na hmotnost papiera a reakcia sa uskutečňuje pri teplote 25 °C 3 hod. Získá sa buničina s výtažkem 93% a tržnou dížkou 3,5 km a pevnosťou v prietlaku 125 kPa.As Example 1, with the amount of C10 2 added being 8% by weight of the paper, and the reaction carried out at 25 ° C for 3 hours. Pulp is obtained with a yield of 93% and a market length of 3.5 km and a compressive strength of 125 kPa.
Zvýšenis tržnej dížky a pevnosti v prietlaku představuje 25% až viac ako 300% oproti novinovému zberovému papieru, ktorý bol připravený pri rovnakých podmienkach rozvlákňovania,' hárkovania a sušenia.The increase in market length and compressive strength is 25% to more than 300% over newsprint which has been prepared under the same pulping, sheeting and drying conditions.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS882452A CS272485B1 (en) | 1988-04-11 | 1988-04-11 | Method of pulp production from waste paper with high content of wood-containing parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS882452A CS272485B1 (en) | 1988-04-11 | 1988-04-11 | Method of pulp production from waste paper with high content of wood-containing parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS245288A1 CS245288A1 (en) | 1990-05-14 |
| CS272485B1 true CS272485B1 (en) | 1991-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS882452A CS272485B1 (en) | 1988-04-11 | 1988-04-11 | Method of pulp production from waste paper with high content of wood-containing parts |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS272485B1 (en) |
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1988
- 1988-04-11 CS CS882452A patent/CS272485B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS245288A1 (en) | 1990-05-14 |
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