CS276614B6 - Way of production of celluloses of a collected wastepaper with a high content of wood containing fractions - Google Patents
Way of production of celluloses of a collected wastepaper with a high content of wood containing fractions Download PDFInfo
- Publication number
- CS276614B6 CS276614B6 CS884982A CS498288A CS276614B6 CS 276614 B6 CS276614 B6 CS 276614B6 CS 884982 A CS884982 A CS 884982A CS 498288 A CS498288 A CS 498288A CS 276614 B6 CS276614 B6 CS 276614B6
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- CS
- Czechoslovakia
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- paper
- production
- high content
- pulp
- celluloses
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- 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
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Abstract
Riešenia spadá do oblasti celulózovo- -papiercnského priemyslu. Rieši spósob zužitkovania zberového papiera s vysokým obsahom dřevitých podialov na buničiny so zlepšenými pevnostnými vlastnosťami, použitelnými na výrobu papierenských výrobkov lepšej akostnej triedy. Postupuje sa tak, že sa na zberový papier pósobí 2,5 až 20 % hmotnostných peroxidom vodí- ka, alebo peroxouhličitanom sodným za súčasného přídavku hydroxidu sodného v množstvo odpovedajúcom alkalickému pro- strediu pH nad hodnotu 3, pri teplota 50 až 100 °C pri atmosfarickom tlaku, pri hydromodule 1 : 8 až 1 : 5 za mia- šania. Sposob sa dá využívat pri výrobě kartónov, vlnitej lepenky a" pod.Solutions fall into the pulp and paper industry. It addresses a method of utilizing high-wood pulp pulp paper with improved strength properties applicable to the production of better quality paper products. To proceed with the harvesting paper, 2.5 to 20% by weight of hydrogen peroxide or sodium percarbonate are added with the addition of sodium hydroxide in an amount corresponding to an alkaline pH of above 3 at 50 to 100 ° C. atmospheric pressure, 1: 8 to 1: 5 for hydromodule Sania. The method can be used in the production of cartons, corrugated cardboard and the like.
Description
Vynález sa týká sposobu výroby buničín zo zberového papiera s vysokým obsahom dřevitých podialov. Je využitelný v celulózovo-papierenskom priemysle.The invention relates to a process for the production of pulps from recovered paper with a high content of woody fractions. It can be used in the pulp and paper industry.
Zborový papier s vysokým obsahom lignifikovuných vlákien ako noviny, niektoré druhy časopisov, brožury, telefónno zoznamy, knihy a podobné' sa v súčasnosti vo svete i u nás spracovávajú takmer výhradně iba zosvetlovaním, čiše odstraněním tlašiarenských farieb. Výsledná vláknina je však vhodná iba do papierenských výrobkov, na ktoré sa nokladú zvýšené požiadavky na pevnostně vlastnosti.Corps paper with a high content of lignified fibers, such as newspapers, some types of magazines, brochures, telephone directories, books and the like, is currently processed in the world and in our country almost exclusively by lightening, ie by removing printing inks. However, the resulting pulp is only suitable for paper products on which increased requirements for strength properties are imposed.
Výroba buničín zo zberového papiera so zlepšenými pevnostnými vlastnosťami s použitím zlúčenín síry, připadne chlóru je predmetom čs. autorského osvedčenia č. 248 451 AO 272 485. Tiebo vynálezy však nezahrnujú všetky dostupné a účinné činidla. Hlavná nevýhoda doterajšieho sposobu podlá čs. autorského osvedčenia č. 243 451 a AO 272 485 je použitie zlúčenín síry a chlóru pri spracovaní zberového papiera, čo nepriaznivo ovplyvňujo životné prostredie.The production of pulps from recovered paper with improved strength properties using sulfur or chlorine compounds is the subject of MS. author's certificate no. 248 451 AO 272 485. However, these inventions do not cover all available and effective agents. The main disadvantage of the current method according to Czechoslovakia. author's certificate no. 243 451 and AO 272 485 is the use of sulfur and chlorine compounds in the processing of recovered paper, which adversely affects the environment.
Tento nedostatek je odstraněný vynálezom, ktorého podstata spočívá v tom, že na zberový papier s vysokým obsahom dřevitých podielov sa pěsobí peroxidem vodíka, aleb peroxouhliúitaném sodným v množstve od 2,5 do 40 % hmotnostných, vztahované na hmotnost zberového papiera .. za přídavku hydroxidu sodného v množstve, odpovedajúcom pH viac ako 6, pri teplote G0 až 100 °C, pri hydromodule (pomere zberového papiera a roakčného roztoku) 1 : 3 až 1 : 6 počas 1 až 3 hodin za miešania beztlakovo.This disadvantage is eliminated by the invention, the essence of which consists in that the recovered paper with a high content of wood fractions is treated with hydrogen peroxide or sodium percarbonate in an amount of from 2.5 to 40% by weight, based on the weight of the recovered paper. sodium in an amount corresponding to a pH of more than 6, at a temperature of G0 to 100 ° C, at a hydromodule (ratio of waste paper and fractional solution) of 1: 3 to 1: 6 for 1 to 3 hours with stirring without pressure.
Pri tomto sposobu sa působí peroxidem vodíka na neupravený triodený papier, který neobsahuje sulfát. Tlačcvá farba sa sčásti uvolňuje účinkom prítoranej alkálie a tak odchádza v kvapalnon výluhu do regoneračného kotlá, kde zhorí a sčasti sa rozdisperguje ve vláknině.In this process, untreated triode paper that does not contain sulfate is treated with hydrogen peroxide. The ink is partly released by the action of the alkali and thus leaves in the liquid leachate to the regeneration boiler, where it burns and partly disperses in the pulp.
lllnvnou výhodou nového sposobu je vylúčenie zlúčenín síry a chlóru pri spracovaní, čo značné zlepšuje pracovně a životné prostredie a znižuje koróziu zariadenia.The main advantage of the new process is the elimination of sulfur and chlorine compounds during processing, which considerably improves the work and the environment and reduces the corrosion of the equipment.
Příklad i :Example i:
Ha 100 hmotnostných dielov zberového papiera sa přidá 525 hmotnostných dielov vodného roztoku, ktorý obsahuje 33,3 hmotnostných dielov 33% H2C2 a hmotnostných dielov liaOH. Zmes sa zahriova pri teplota 50 °C počas 3 hodin za miešania. Po vypraní sa přidá malé množstvo roztoku siričitanu sodného a získá sa produkt s výtažkem 90% vztahované na zanášku zberového papiera, s tržnou dlžkou 3,9 km (pěvodná tržná dlžka 2,3 km) a s pavnosťou v pcietlaku 120 kPa. .525 parts by weight of an aqueous solution containing 33.3 parts by weight of 33% H 2 C 2 and parts by weight of LiOH are added to 100 parts by weight of waste paper. The mixture was heated at 50 ° C for 3 hours with stirring. After washing, a small amount of sodium sulphite solution is added to give a product with a yield of 90% based on the waste paper charge, a market length of 3.9 km (original market length 2.3 km) and a yield at a pressure of 120 kPa. .
Příklad 2Example 2
Ako v příklade 1 s tým rozdielom, že sa namiesto peroxidu vodíka použije peroxouhliéitan sodný v množstve C5,3 hmotnostných dielov a NaOH v množstvo 5,12 hmotnostných dielov. Zíaas sa zahrieva beztlakovo za miešania 1 hodinu pri teplete 100 °C. Získá sa buničina š výtažkem 73% vztahované na zanášku zberového papiera, s tržnou dlžkou 3,9 km a s po vnos L'on v prietlaku 140 kPa. .......As in Example 1, except that sodium percarbonate was used in an amount of C5.3 parts by weight and NaOH in an amount of 5.12 parts by weight instead of hydrogen peroxide. The mixture is heated without pressure with stirring at 100 DEG C. for 1 hour. Pulp is obtained in a yield of 73% based on the waste paper feed, with a market length of 3.9 km and a feed of L'on at a pressure of 140 kPa. .......
* !5 275614 D2*! 5 275614 D2
Sposob podia vynálezu umožňuje dosiahnúť zvýšenic hodnot mechanických pevností pri súčasnon zlepšení optických vlastností v procese spracovania sborového papiera s vysokým obsahom dřevitých podielov. Výsledný produkt jc takto využitelný pri výrobo akostných papiarenských výrobkov.The method according to the invention makes it possible to achieve increases in the values of mechanical strengths while at the same time improving the optical properties in the process of processing corrugated paper with a high content of woody components. The resulting product is thus usable in the production of quality paper products.
Použitie uvedených činidiel je. výhodné i v tom, že kvapalr.é odpady z tohto postupu sú rccirkulovatelnó a možno ich zaokruhovať například do sulfátovéj rcgcnerácie.The use of these reagents is. It is also advantageous in that the liquid wastes from this process are recyclable and can be rounded off, for example, into sulphate regeneration.
Rový účinok vynálezu je v tom, že umožňuje zvýšenie mechanických vlastnost:·' výsledného produktu z 2 až 2,3 km na3,9 km.The main effect of the invention is that it makes it possible to increase the mechanical properties of the final product from 2 to 2.3 km to 3.9 km.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS884982A CS276614B6 (en) | 1988-07-11 | 1988-07-11 | Way of production of celluloses of a collected wastepaper with a high content of wood containing fractions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS884982A CS276614B6 (en) | 1988-07-11 | 1988-07-11 | Way of production of celluloses of a collected wastepaper with a high content of wood containing fractions |
Publications (2)
Publication Number | Publication Date |
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CS8804982A1 CS8804982A1 (en) | 1991-02-12 |
CS276614B6 true CS276614B6 (en) | 1992-07-15 |
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CS884982A CS276614B6 (en) | 1988-07-11 | 1988-07-11 | Way of production of celluloses of a collected wastepaper with a high content of wood containing fractions |
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1988
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CS8804982A1 (en) | 1991-02-12 |
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