CN101054779A - Regeneration method for waste composite paper film - Google Patents
Regeneration method for waste composite paper film Download PDFInfo
- Publication number
- CN101054779A CN101054779A CNA2007101007192A CN200710100719A CN101054779A CN 101054779 A CN101054779 A CN 101054779A CN A2007101007192 A CNA2007101007192 A CN A2007101007192A CN 200710100719 A CN200710100719 A CN 200710100719A CN 101054779 A CN101054779 A CN 101054779A
- Authority
- CN
- China
- Prior art keywords
- plastic
- paper
- aluminum
- film
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 71
- 239000002699 waste material Substances 0.000 title claims abstract description 60
- 238000011069 regeneration method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 91
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 77
- 229920003023 plastic Polymers 0.000 claims abstract description 72
- 239000004033 plastic Substances 0.000 claims abstract description 72
- 238000000926 separation method Methods 0.000 claims abstract description 71
- 239000000835 fiber Substances 0.000 claims abstract description 69
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000002985 plastic film Substances 0.000 claims abstract description 45
- 229920006255 plastic film Polymers 0.000 claims abstract description 45
- 239000011888 foil Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 37
- 239000005060 rubber Substances 0.000 claims abstract description 11
- 230000001172 regenerating effect Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 80
- 239000007788 liquid Substances 0.000 claims description 46
- -1 alkyl phosphate diethanol ammonium salt Chemical compound 0.000 claims description 40
- 238000003756 stirring Methods 0.000 claims description 22
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 18
- 239000004698 Polyethylene Substances 0.000 claims description 14
- 239000006185 dispersion Substances 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 14
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 14
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 14
- 239000010802 sludge Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000012634 fragment Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 238000005188 flotation Methods 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 229910001385 heavy metal Inorganic materials 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002280 amphoteric surfactant Substances 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- 239000003093 cationic surfactant Substances 0.000 claims description 4
- 239000003240 coconut oil Substances 0.000 claims description 4
- 235000019864 coconut oil Nutrition 0.000 claims description 4
- 235000019197 fats Nutrition 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 235000019253 formic acid Nutrition 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 229950011392 sorbitan stearate Drugs 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 3
- 229940077388 benzenesulfonate Drugs 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 229920001291 polyvinyl halide Polymers 0.000 claims description 3
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 2
- FTJUZCBLWZLXFR-KTKRTIGZSA-N 2-[bis(2-hydroxyethyl)amino]ethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCN(CCO)CCO FTJUZCBLWZLXFR-KTKRTIGZSA-N 0.000 claims description 2
- CYEJMVLDXAUOPN-UHFFFAOYSA-N 2-dodecylphenol Chemical compound CCCCCCCCCCCCC1=CC=CC=C1O CYEJMVLDXAUOPN-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- CDOUZKKFHVEKRI-UHFFFAOYSA-N 3-bromo-n-[(prop-2-enoylamino)methyl]propanamide Chemical compound BrCCC(=O)NCNC(=O)C=C CDOUZKKFHVEKRI-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 2
- ZTHQBROSBNNGPU-UHFFFAOYSA-N Butyl hydrogen sulfate Chemical compound CCCCOS(O)(=O)=O ZTHQBROSBNNGPU-UHFFFAOYSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 2
- 229920001800 Shellac Polymers 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- JBHUOJZHWWJNML-UHFFFAOYSA-M [Na+].CCCCC1=C(CCCC)C2=CC=C(C=C2C=C1)S([O-])(=O)=O Chemical compound [Na+].CCCCC1=C(CCCC)C2=CC=C(C=C2C=C1)S([O-])(=O)=O JBHUOJZHWWJNML-UHFFFAOYSA-M 0.000 claims description 2
- 235000004279 alanine Nutrition 0.000 claims description 2
- RGCKGOZRHPZPFP-UHFFFAOYSA-N alizarin Chemical compound C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 claims description 2
- 239000007844 bleaching agent Substances 0.000 claims description 2
- YALMXYPQBUJUME-UHFFFAOYSA-L calcium chlorate Chemical compound [Ca+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O YALMXYPQBUJUME-UHFFFAOYSA-L 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 claims description 2
- PHHWLDOIMGFHOZ-UHFFFAOYSA-L disodium;dinaphthalen-1-ylmethanedisulfonate Chemical compound [Na+].[Na+].C1=CC=C2C(C(C=3C4=CC=CC=C4C=CC=3)(S(=O)(=O)[O-])S([O-])(=O)=O)=CC=CC2=C1 PHHWLDOIMGFHOZ-UHFFFAOYSA-L 0.000 claims description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 2
- 150000002169 ethanolamines Chemical class 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- ZPIRTVJRHUMMOI-UHFFFAOYSA-N octoxybenzene Chemical compound CCCCCCCCOC1=CC=CC=C1 ZPIRTVJRHUMMOI-UHFFFAOYSA-N 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 235000019198 oils Nutrition 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 claims description 2
- WBHHMMIMDMUBKC-QJWNTBNXSA-M ricinoleate Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC([O-])=O WBHHMMIMDMUBKC-QJWNTBNXSA-M 0.000 claims description 2
- 229940066675 ricinoleate Drugs 0.000 claims description 2
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 claims description 2
- 229940113147 shellac Drugs 0.000 claims description 2
- 239000004208 shellac Substances 0.000 claims description 2
- 235000013874 shellac Nutrition 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 2
- CMEJNMBQFJCFIM-UHFFFAOYSA-M sodium;2-benzylnaphthalene-1-sulfonate Chemical compound [Na+].C1=CC2=CC=CC=C2C(S(=O)(=O)[O-])=C1CC1=CC=CC=C1 CMEJNMBQFJCFIM-UHFFFAOYSA-M 0.000 claims description 2
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 2
- 239000001593 sorbitan monooleate Substances 0.000 claims description 2
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 2
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims 2
- 239000010812 mixed waste Substances 0.000 claims 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims 2
- XFHNWUCKJLSUSF-UHFFFAOYSA-M C=CC1=C(C2=CC=CC=C2C=C1C)S(=O)(=O)[O-].[Na+] Chemical compound C=CC1=C(C2=CC=CC=C2C=C1C)S(=O)(=O)[O-].[Na+] XFHNWUCKJLSUSF-UHFFFAOYSA-M 0.000 claims 1
- 239000011256 inorganic filler Substances 0.000 claims 1
- 229910003475 inorganic filler Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000011049 filling Methods 0.000 description 10
- 230000008929 regeneration Effects 0.000 description 9
- 239000008213 purified water Substances 0.000 description 6
- 235000013361 beverage Nutrition 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000010459 dolomite Substances 0.000 description 3
- 229910000514 dolomite Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- TUGYIMVHPWPMBE-UHFFFAOYSA-N C=CC1=C(C=CC2=CC=CC=C12)C.[Na] Chemical compound C=CC1=C(C=CC2=CC=CC=C12)C.[Na] TUGYIMVHPWPMBE-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 235000019543 dairy drink Nutrition 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 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
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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
- Processing Of Solid Wastes (AREA)
Abstract
A regeneration method for waste composite paper film material includes a separation step (1) and a separation step (2), wherein the separation step (1) mainly separates mostly paper fiber, and the separation step (2) further separates plastic film or/and plastic-aluminum composite film. The method including two steps can increase quality and quantity of regenerating paper, and reduce content of the plastic film and aluminum foil in the regenerating paper. The waste composite paper film material can be separated and regenerated without pollution, and can be used as raw material or auxiliary material for paper industry, rubber and plastic product industry and aluminum industry, wherein all kinds of recovery components are utilized.
Description
Technical Field
The invention provides a method for regenerating and utilizing paper film waste mainly compounded by paper fiber, plastic and aluminum foil, relates to the regeneration treatment of solid waste such as waste paper, waste plastic and the like, and belongs to the technical field of environmental protection and comprehensive utilization of solid waste.
Background
The composite paper film waste refers to paper compounded by paper fibers and a plastic film or/and an aluminum foil, or a 'paper' film compounded by a plastic film and an aluminum foil. In recent years, the application field of composite paper film materials is continuously expanded, for example, box-packed dairy products, beverages and the like purchased from supermarkets are packaged by composite paper with the brand name of 'tetra' which is a composite paper film material formed by laminating wood pulp fibers, polyethylene or/and polypropylene plastic films and aluminum foils; furthermore, many non-bottled pharmaceuticals, which are currently available from pharmaceutical stores, are enclosed in "paper" sheets or film bags made of a combination of plastic and aluminum foil.
Because the composite paper film material has various advantages of water resistance and corrosion resistance, the composite paper film material is popular among modern consumers and is one of the main varieties of disposable commodity packaging materials; in addition, due to the waterproof and corrosion-resistant characteristics of the composite paper film material, great difficulty is brought to the recycling of the paper film waste, so that the composite paper film material becomes an unpopular material in the traditional recycling resource industries of recycled paper, recycled plastic and the like!
The research on the problem that the novel paper film waste is difficult to regenerate is concluded that at least the following items are included:
1. because of the existence of the plastic film, the paper fiber in the paper film is difficult to absorb water in the regeneration process of soaking in water, so that the paper fiber which cannot be dissolved and swelled can not be obtained and can not be smashed into pulp in the next pulping operation section;
2. the three materials of paper fiber, plastic film and aluminum foil are separated from the waste composite paper film material, but the three products obtained by the method often have more or less two or one of the two materials, and the inclusion content is fluctuated, which brings the trouble of unstable product for the blending and recycling of the reclaimed materials of the three materials.
3. In the process of collecting the waste composite paper membrane material from society, the material can also bring residues of dairy drinks and the like, and also contain heavy metal component polyvinyl halide membrane material, silt and other impurities, and the existence of the impurities makes the regeneration impossible without discharging pollution to the environment.
Disclosure of Invention
The purpose of the invention is: the method for regenerating and utilizing the composite paper film waste is characterized by comprising the following steps: the waste plastic is separated and regenerated without pollution, so that the waste plastic becomes the raw and auxiliary material products of paper industry, rubber and plastic product industry and aluminum industry, and all recovered components are utilized.
Inventive concept
The conception of the invention is as follows:
1. the regeneration process of paper fiber, plastic film and aluminum foil is divided into a separation step (1) and a separation step (2); in the separation step (1), firstly, the paper fiber is mainly separated from the composite paper film waste so as to ensure that the obtained paper fiber is as pure as possible; in the separation step (2), the plastic film and the aluminum foil are separated again, so that the obtained plastic film and the aluminum foil can be as pure as possible.
2. In one or two devices with water and a mechanical tearing and dispersing device, a separation step (1) or a separation step (1) and a separation step (2) are carried out, water or water and a penetrating agent are added in the process of carrying out, so that aqueous solution can act on a bonding layer of paper and plastic, a bonding layer of plastic and aluminum, or a bonding layer of paper fiber and aluminum by means of chemical and/or mechanical force of the water or the water and the penetrating agent at the position of a crease, a film hole and the like formed by tearing the composite paper film material.
3. The method is characterized in that a raw and auxiliary material product set which comprises paper industry, rubber and plastic product industry and metal aluminum industry is arranged and used as a product form for reusing composite paper film waste, so that the composite paper film waste collected from various recovery channels can be changed into a useful product after separation and processing, and the waste discharge in the processing process is avoided.
Detailed description of the preferred embodiments
Specifically, the embodiments of the technical idea of the present invention are:
a method for regenerating and utilizing waste composite paper film materials is characterized in that: comprising at least a separation step (1) or a separation step (1) and a separation step (2); wherein,
the separation step (1) is to place the waste composite paper film material composed of paper fiber and plastic film or/and aluminum foil in a device with water and a mechanical rubbing and tearing dispersion device, the device provided with the twisting and tearing dispersion device can be a pulper or a stirring tank and the like commonly used in the paper industry, penetrant can be added into the water, at the liquid temperature of room temperature to 100 ℃, the paper fibers in the waste composite paper film material are firstly dissolved and swelled by controlling the stirring of equipment or/and the rotating speed and the flow rate of a rotating cage or/and a water circulating pump, the solid/liquid ratio of the feeding, the processing time of each batch and other process parameters, the paper fibers are crushed into a mixed suspension state of only discrete fibers and as complete as possible plastic films or/and plastic-aluminum composite films, then the discrete paper fiber in the mixed suspension flows out from the mesh separating holes at the twisting and tearing cage and the like along with the aqueous solution and is separated and taken out; the complete plastic film or/and plastic-aluminum composite film obtained after liquid removal can be sent to the separation step (2) for further treatment after workshop packaging;
in the above steps, in the mixed suspension, the technological parameters are controlled to make the paper fibers in the waste composite paper film material wet and swell, and the fibers in discrete shapes are twisted and crushed, and simultaneously the plastic film or/and the plastic-aluminum composite film as complete as possible, and most of the plastic film or/and the plastic-aluminum composite film are not crushed; that is, in a 0.01m2 paper sample prepared from the obtained paper fiber pulp, the aluminum foil is less than 100 points, and the area of each point is 0.1-0.5 mm2The interval between them is degree.
In the operation of the separation step (1), the technological parameters of the operation are controlled in the way that most or all of the paper fibers are rubbed and torn off, and the integrity of the aluminum foil and the plastic film is as complete as possible; the operation process parameters in the separation step (1) refer to:
a. the liquid temperature is in the range of room temperature to 100 ℃, preferably 60 to 80 ℃;
b. the stirring speed is within the range of 100-800 rpm;
c. the solid/liquid weight ratio of the feeding is 7-40/100;
d. the aperture of the separation net is within the range of 3-20 mm;
e. the content of the penetrating agent in the aqueous solution is 0-10 wt%;
f. the pH value of the feed liquid is 6-9;
g. the operation time is within the range of 20-90 minutes;
h. the equipment and the water circulation pipeline are preferably provided with a heat insulation layer;
the separation step (2) is to place the plastic-aluminum composite paper film or plastic film and aluminum foil with a small amount of paper fiber removed or most of the fiber removed after the separation step (1) is also placed in a device which is provided with a mechanical rubbing, dispersing and rotating cage device and is filled with water or water, wherein the device provided with the mechanical rubbing, dispersing and rotating cage device can be a pulper or a stirring tank or a combination of the pulper, a stirring tank container and the stirring tank, then water containing a penetrating agent is added, the composite paper film is soaked, cleaned, suspended and carried by the solution under the conditions of proper solution medium, liquid temperature and stirring, the paper film material is properly kneaded in the device with water and mechanical stirring, so that the small amount of paper fiber, the medium amount of aluminum foil and the large amount of plastic film which are originally in a sticky composite state in water are rubbed into a material which is debonded and crushed by the three, the three are distributed in a discrete and suspension state, so that a small amount of debonded and discrete paper fibers, a medium amount of aluminum foil fragments and crumbs can flow out together with the aqueous solution from the mesh openings at the separation rotating cage, and at the moment, the relative amount of the paper fibers in the solution is very small, loose paper fibers are not enough to prevent the precipitation of the aluminum foil fragments and crumbs far heavier than water when the plastic film is separated by the rotating cage and sufficient water exists, so that the aqueous solution containing the small amount of paper fibers, the medium amount of aluminum foil fragments and crumbs obtained in the step (2) can obtain pure aluminum foil fragments and effluent crumbs from the lower part of the feed liquid through static-liquid separation, the paper fibers are separated from the upper part of the feed liquid, the separated water is recycled and purified and then fed into the machine for utilization, and the paper fibers are removed from the tearing-dispersing machine through the operations of liquid rubbing, separation and water feeding again after recycling and purification, so that the paper fibers are removed from the tearing-dispersing machine, Waste plastic films of aluminum foil.
In the operation of the separation step (2), the technological parameters of the operation are controlled to ensure that the paper fiber, the aluminum foil and the plastic film are discrete; the operation process parameters in the separation step (2) refer to:
a. the liquid temperature is room temperature to 90 ℃, preferably 60 to 80 ℃;
b. the stirring speed is within the range of 100-800 rpm;
c. the feeding weight ratio of solid to liquid in the stirring container is 0.8-1.0/4-6;
d. the aperture of the rotating cage separation net is within the range of 3-20 mm;
e. the content of the penetrating agent in the water solution is within the range of 0.01-10 wt%;
f. the pH value of the feed liquid is 1-9;
g. the operation time is within the range of 20-120 minutes;
h. the equipment and the water circulation pipeline are preferably provided with a heat insulation layer;
the penetrating agent in the step (1) and the step (2) is one or more of the following A materials, and the addition amount of the penetrating agent is 0-10 percent (weight) of the water consumption:
bleaching powder, hydrogen peroxide, sodium hypochlorite, calcium hypochlorite, potassium chlorate, calcium chlorate, formic acid, acetic anhydride, citric acid, sulfuric acid, phosphoric acid and the like,
and one or more than one of the following materials B are added, wherein the addition amount of the materials B is 0-0.5 percent (weight) of the water consumption:
(a) a cationic surfactant, (b) an anionic surfactant, (c) a nonionic surfactant, (d) an amphoteric surfactant, wherein said:
(a) cationic surfactants, including but not limited to: one or more of octadecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride, triethanolamine monooleate, alkyl phosphate diethanol ammonium salt, octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, trihydroxyethyl quaternary ammonium methyl sulfate, etc.;
(b) anionic surfactants, including but not limited to: one or a combination of more than one of saponified rosin, saponified shellac, saponified product of stearic acid, saponified product of fat, dioctyl sodium sulfosuccinate, sodium 1, 2-dibutylnaphthalene-6-sulfonate, N-butyl sulfate oleate sodium salt, butyl sulfate ricinoleate di (or tri) ethanolamine salt, sodium N-oleoylmethyltaurate, sodium lauryl sulfate, sodium p-methoxyfatty amido benzenesulfonate, sodium alkylsulfonate, sodium alkyl benzenesulfonate, sodium alkyl polyoxyethylene ether sulfate, sodium benzyl naphthalene sulfonate, turkey red oil, sodium dinaphthylmethane disulfonate, sodium methylene bismethylnaphthalene sulfonate, condensate of sodium benzyl naphthalene sulfonate and formaldehyde, potassium alkyl phosphate, potassium lauryl alcohol ether phosphate, soap, and the like;
(c) nonionic surfactants, including but not limited to: ethylene oxide condensation compound of C7-C9 straight chain fat, coconut oil alkyl oxalamide, fatty alcohol polyoxyethylene ether of C12-C18, dodecyl phenol polyoxyethylene ether, octal phenol polyoxyethylene ether-10, polyethylene castor oil, sorbitan oleic acid polyoxyethylene ether, sorbitan stearate, sorbitan monooleate, sorbitan stearate polyoxyethylene ether, addition product of polypropylene glycol and ethylene oxide, coconut oil alcohol polyoxyethylene ether, polyethylene glycol octyl phenyl ether and the like or combination of more than one;
(d) amphoteric surfactants, including but not limited to: one or more of N-dodecyl alanine, dodecyl betaine, etc.
The penetrant used in the separation step (1), wherein the addition amount of the sum of A and B is 0-10% (weight) of the water consumption;
and (3) separating the penetrating agent used in the step (2), wherein the addition amount of the sum of A and B is 0.01-10 percent (by weight) of the water amount.
The regeneration according to the present invention further comprises: the waste plastic film without paper fiber and aluminum foil is floated with water to eliminate impurity, such as polyvinyl halide, halogenated polyethylene, plastic containing inorganic stuffing, stone, metal block, etc.
After the water used in the separation step (1), the separation step (2) and the water flotation is flowed out of the twisting and tearing dispersion machine and the water flotation tank and is separated from paper fibers, aluminum foil scraps and plastic films, the water is purified by using known flocculating agents such as polyaluminium or/and polyferric and the like in a water purification tank, and the purified water is circularly supplied to the separation step (1), the separation step (2) and the water flotation tank to be used as separation water.
The regeneration according to the present invention further includes: using a rubber and plastic pulverizer for mining industry, and adding one or more than one plastic-containing material as follows while pulverizing the hard material:
the waste plastics with large specific gravity obtained by water floatation, the composite paper film waste without separation treatment, the aluminum-plastic composite film and the waste plastics containing heavy metals;
or adding the plastic-containing material and the natural dry material of the flocculated purified water sludge together to obtain a plastic-containing filling master batch product which comprises 5-20% of the plastic-containing material and 95-80% of the natural dry material of the flocculated purified water sludge by weight, or comprises 95-80% of the natural dry material of the flocculated purified water sludge and 95-80% of the hard inorganic ore powder by weight, and the total amount is 100%;
and rolling the obtained master batch to obtain the flaky plastic-containing filling master batch or master batch product.
The invention has the following advantages: besides the regeneration and separation of the above-mentioned waste composite paper film to obtain paper fibre, aluminium foil scraps, polyethylene or/and polypropylene plastic film and aluminium-plastic composite film, then using known technology to make them into the raw and auxiliary materials for paper industry, aluminium industry and plastics product industry, the invention also can utilize the waste composite paper film, flocculated solid sludge obtained after water circulation purification and waste material of composite paper film which is not undergone the separation treatment, and adopts pulverizing method to make pollution-free filling mother material or mother granules or mother rubber product containing plastics so as to more completely utilize waste composite paper film.
One of the utilization schemes of the invention, namely the utilization scheme for preparing the filling master batch, the master batch and the master batch containing plastics, has the advantages that: in the process of crushing preparation, the processing temperature does not reach the decomposition temperature of the plastic, and the materials obtained in the preparation process do not have serious flying dust.
The invention relates to a method for regenerating and utilizing a waste composite paper film, which comprises the following steps: the waste composite paper film is fully and comprehensively regenerated and utilized, and no waste materials are generated in the regeneration process, so that a raw and auxiliary material product set which can be used in paper industry, rubber and plastic product industry, aluminum-related industry and other industries is obtained, and specifically the product set comprises the following components:
a. the components are added, and the filling master batch or master batch product is used as a dust-free filler in the rubber and plastic product industry and contains miscellaneous waste plastics or miscellaneous waste plastics and sludge; and,
b. selecting and adding components, and using the components in recycled paper fiber pulp or paper fiber pulp used as raw materials of paper making industry and paper products made of the recycled paper fiber pulp or paper fiber pulp; and/or the first and/or second light sources,
c. selecting and adding components, and using the components in regenerated polyethylene or/and polypropylene plastic particle products in the plastic product industry; and/or the first and/or second light sources,
d. the selected components are used for aluminum scrap products in aluminum industry, such as aluminum ingots, aluminum powder, fireworks, aluminum salt and the like; and/or the first and/or second light sources,
e. the selected components are used as conductive or antistatic and reflective raw and auxiliary materials in the plastic product industry, waterproof roll industry and the like, and the regenerated polyethylene or/and polypropylene plastic particle products containing aluminum foil scrap powder.
Detailed Description
Example 1
Preparing materials: 100 parts of 'tetra Pak' waste composite paper beverage box paper film material collected from the society is placed in a twisting and tearing dispersion machine, 450 parts of water and 0.01 part of methylene sodium bis (methylnaphthalene sulfonate) are added, and the pH value of feed liquid is 7 +/-0.2;
carrying out the operation of the separation step (1): starting a motor, stirring at room temperature for 20 minutes, discharging the feed liquid containing the paper fibers, filtering and washing the paper fibers in the discharged feed liquid by a conventional solid-liquid separation process and mechanical separation, and taking out the filtered and washed feed liquid to obtain paper fiber pulp for the paper making industry; pumping the separated water into a water purifying tank, pumping about 450 parts of purified water in the water purifying tank, adding into a rubbing and tearing dispersion machine, adding a proper amount of methylene bis (methyl) sodium naphthalene sulfonate (such as 0.003 part) according to the separation condition of the paper membrane material, starting a motor, operating at room temperature for about 20 minutes, and discharging the feed liquid containing the paper fibers;
through the cyclic operation of the separation step (1) for 2 to 4 times, 90 to 98 percent of paper fibers in the paper film material of the 'tetra Pak' waste composite paper beverage box can be separated, 60 to 65 parts of paper fiber pulp (calculated by dry basis) can be obtained, and the aluminum foil mixed in the obtained paper fiber pulp is less than 10 points (each point is 0.1 to 0.5 mm)2Aluminum foil)/0.01 m2A paper sample;
and taking out the waste composite paper beverage box paper film material without the paper fiber from the twisting and tearing dispersion machine, and carrying out the operation of the separation step (2).
Preparing materials: taking 100 parts of the aluminum-plastic composite membrane material which is only left after the operation process of the separation step (1), placing the composite membrane material in another rubbing and tearing dispersion machine which is provided with a heat insulation layer outside the machine, then adding 500 parts of water with the temperature of 100 ℃, 15 parts of commodity formic acid with the concentration of 85%, 0.1 part of fatty alcohol polyoxyethylene ether, and regulating and controlling the pH value of feed liquid to be 4.5-5.5;
carrying out the operation of the separation step (2): controlling the temperature of the material to be not lower than 60 ℃, starting a stirring motor of the rubbing and tearing dispersion machine, discharging the material liquid containing aluminum foil fragments, crumbles and the like after operating for 30-40 minutes, precipitating the aluminum foil fragments and crumbles at the lower part of the material liquid by using a conventional static-liquid separation process and a conventional machine for the discharged material liquid, taking out, and filtering and washing a small amount of paper fibers in the material liquid; pumping about 500 parts of purified water in the water purifying tank into a rubbing and tearing dispersion machine, adding a proper amount of formic acid (such as 1 part) and a proper amount of fatty alcohol polyoxyethylene ether (such as 0.05 part) according to the separation condition of the aluminum-plastic film material, starting a motor, stirring at the temperature of not lower than 60 ℃ for about 20 minutes, and then discharging the material liquid containing aluminum foil fragments and crumbs;
after the separation step (2) is circularly operated for 2 to 3 times, 95 to 99 percent of aluminum foil in the waste composite paper beverage box paper film material of the tetra Pak' Pak is separated, 22 to 25 parts of aluminum foil fragments and crumbles (calculated on a dry basis) can be obtained, 0.2 to 2 parts of paper fiber pulp (calculated on a dry basis) can be obtained, and about 72 to 73 parts of the rest plastic film (calculated on a dry basis) can be taken out from a twisting machine.
In the separation step (1) and the separation step (2) of the present embodiment, they can be performed in the same kneader, but preferably they are separated, so that the aluminum scraps kneaded and separated in the step (2) can be prevented from being mixed into the paper fiber pulp.
Example 2
Taking about 100 parts of the plastic film obtained in the example 1, from which the paper fibers and the aluminum are removed, placing the plastic film into a pool capable of storing about 2000 parts of water, adding the water, stirring the plastic film materials to loosen, standing, and lifting the plastic film on the upper layer of the pool water, wherein the lighter plastic films are polyethylene or/and polypropylene plastic films obtained by separation by a water flotation method; the heavy waste plastics which sink in water or water bottom are miscellaneous waste plastics with larger specific gravity, wherein the miscellaneous waste plastics comprise halogen-containing polyolefin waste plastics containing heavy metal stabilizers;
the polyethylene or/and polypropylene plastic film material separated by the water flotation method is granulated and regenerated by adopting the known technology to obtain regenerated polyethylene or/and polypropylene plastic particles which can be used for the plastic product industry;
the waste plastics with higher specific gravity separated by the water flotation method of this example were mixed according to the following ratio: the method comprises the steps of feeding natural dry materials of sludge obtained by water treatment and dolomite in a weight ratio of 5-20: 95-80, feeding the natural dry materials of the sludge and the dolomite into a mining vertical fine mill together for crushing, wherein the mining vertical fine mill is a machine which is good in eating hardness, crushing the natural dry materials of the sludge and mineral materials such as the dolomite, the materials are easily crushed into fine powder which is finer than or equal to 200 meshes by one-time machine, a small amount of miscellaneous waste plastics which are flexible but not resistant to cutting are added into the hard materials, discharging of the crushing machine is not seriously affected, the obtained mixed powder has no high dust flying property of pure mineral powder, the mixed powder obtained by the crushing machine is filling master batch which can be used for filling in rubber and plastic products, and flaky filling master batch particles or master batch can be obtained after the filling master batch is rolled by a rolling machine which is commonly used for rubber and plastic products.
Example 3
Taking a proper amount of the aluminum-plastic composite film material left after the separation step (1) operation process in the embodiment 1, and granulating the aluminum-plastic composite film material by adopting a known plastic granulation regeneration technology to obtain the regenerated polyethylene or/and polypropylene plastic particles containing aluminum foil scrap powder, which can be used as raw and auxiliary materials for electric conduction, antistatic, light reflection and the like in the plastic product industry, the waterproof coiled material industry and the like.
Example 4
Taking 5-20 parts of the miscellaneous waste plastics with large specific gravity separated by the water floatation method in the embodiment 2, taking 10-20 parts of dry materials obtained by naturally drying sludge obtained from a flocculation water purification tank, and the balance of limestone, wherein the total weight is 100 parts, putting the dry materials and the limestone into a mining vertical fine grinding machine together for grinding to obtain plastic-containing filling master batch, wherein the plastic-containing material accounts for 5-20% by weight, the naturally dried material of the flocculation water purification sludge accounts for 10-20% by weight, and the limestone ore powder accounts for 75-40% by weight, and the total weight is 100%.
The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.
Claims (9)
1. A regeneration method of waste composite paper film materials comprises a separation step (1) and a separation step (2); wherein,
the separation step (1) is that waste composite paper membrane materials consisting of paper fibers and plastic membranes or/and aluminum foils are placed in a device which is provided with water and a mechanical tearing and rubbing dispersion device,
the device provided with the twisting and tearing dispersion device comprises a pulper or a stirring tank commonly used in the paper industry,
the method is characterized in that a penetrant is added or not added into the water, and the operation steps are as follows:
(a) at the liquid temperature of room temperature to 100 ℃, the solid/liquid ratio of the fed materials is adjusted by controlling the stirring of equipment or/and the rotating speed and the flow rate of a rotating cage or/and a water circulating pump, and the waste composite paper film material slurry is pretreated to obtain mixed suspension liquid in each batch of treatment time;
in the mixed suspension, the technological parameters are controlled to ensure that paper fibers in the waste composite paper film material are wet and swollen, and are twisted into discrete fibers, and meanwhile, most of plastic films or/and plastic-aluminum composite films are not broken; i.e. 0.01m obtained by separating the paper fiber pulp obtained in this step2In the paper sample, the aluminum foil mixed in is less than 100 points, and the area of each point is 0.1-0.5 mm2The interval is degree;
(b) separating and taking out the discrete paper fibers obtained in the step (a) through mesh separating holes at the twisting and tearing rotating cage, and operating to obtain commercial paper pulp according to a conventional papermaking process;
(c) removing liquid and most of fiber from the plastic film or/and the plastic-aluminum composite film, packaging and then sending into the separation step (2) for treatment;
the separation step (2) is to place the plastic film or/and the plastic-aluminum composite film which is subjected to the operation of the separation step (1) and the separation step (c) and is subjected to most of fibers removal in a device which is provided with water or water and a mechanical twisting, tearing, dispersing and cage rotating device for post-treatment; the equipment provided with the mechanical twisting, tearing, dispersing and cage rotating device comprises a pulper or a stirring tank or the combination of the pulper, a stirring tank container and a stirring tank; the operation steps are as follows: .
In the separation step (2) (a), under the conditions of certain penetrant solution, liquid temperature and stirring, the penetrant solution is utilized to soak, clean, suspend and carry the plastic film or/and the plastic-aluminum composite film, the plastic film or/and the plastic-aluminum composite film is kneaded in equipment with water and mechanical stirring to ensure that the plastic film or/and the plastic-aluminum composite film is originally in a sticky composite state in water, paper fibers accounting for less than 5 wt% of the total amount of the composite film, aluminum foils accounting for 20-30 wt% of the total amount of the composite film and the rest of plastic films are rubbed and crushed into mutually debonded, crushed and discrete states,
(b) separating the suspension obtained in the step (a) from the mesh holes of the separation rotating cage to obtain a plastic film, and performing conventional granulation to obtain regenerated plastic particles; simultaneously obtaining a suspension of debonded and discrete paper fibers accounting for less than 5 wt% of the total amount of the composite film and aluminum foil fragments and crumbs accounting for 20-30 wt% of the total amount of the composite film,
(c) standing and separating the suspension of the paper fiber which accounts for less than 5 wt% of the total amount of the composite membrane and the aluminum foil fragments and crumbs which account for 20-30 wt% of the total amount of the composite membrane obtained in the step (b), obtaining pure aluminum foil fragments and crumbs which are used as regenerated aluminum materials from the effluent liquid at the lower part of the feed liquid, separating the pure aluminum foil fragments and crumbs from the effluent liquid at the upper part of the feed liquid to obtain the paper fiber, operating to obtain commercial paper pulp according to the conventional paper making process,
(d) and (c) obtaining a waste plastic film without paper fibers and aluminum foils from the twisting and tearing dispersion machine by twisting and tearing, discharging liquid, separating and feeding water again for a period of time from the residual suspension liquid, and recycling and purifying the separated water and then feeding the water into the machine again for utilization.
2. The method of claim 1, wherein:
in the operation of the separation step (1), the process parameters of the operation are as follows: paper fibers in the waste composite paper film material are wet and swollen, and are twisted into discrete fibers, and meanwhile, most of plastic films or/and plastic-aluminum composite films are not broken; i.e. 0.01m prepared from the obtained paper fiber pulp2In the paper sample, the aluminum foil mixed in the paper sample is less than 10 points, and the area of each point is 0.1-0.5 mm2The interval is degree; that is to say that the first and second electrodes,
a. the liquid temperature is between room temperature and 100 ℃;
b. the stirring speed is within the range of 100-800 rpm;
c. the solid/liquid weight ratio of the feeding is 7-40/100;
d. the aperture of the separation net is within the range of 3-20 mm;
e. the content of the penetrating agent in the aqueous solution is 0-10 wt%;
f. the pH value of the feed liquid is 6-9;
g. the operation time is within the range of 20-90 minutes;
h. the equipment and the water circulation pipeline are preferably provided with a heat insulation layer;
in the operation of the separation step (2) (a), the technological parameters of the operation are controlled to the extent that the paper fiber, the aluminum foil and the plastic film are discrete; the operation process parameters in the separation step (2) refer to:
a. the liquid temperature is between room temperature and 90 ℃;
b. the stirring speed is within the range of 100-800 rpm;
c. the feeding weight ratio of solid to liquid in the stirring container is 0.8-1.0/4-6;
d. the aperture of the rotating cage separation net is within the range of 3-20 mm;
e. the content of the penetrating agent in the water solution is within the range of 0.01-10 wt%;
f. the pH value of the feed liquid is 1-9;
g. the operation time is within the range of 20-120 minutes;
h. the equipment and the water circulation pipeline are preferably provided with an insulating layer.
3. The process of claim 2, wherein the liquid temperature in the separation step (1) (a) is between 60 ℃ and 80 ℃; the temperature of the liquid in the separation step (2) (a) is between 60 and 80 ℃.
4. The method according to claim 1, 2 or 3, wherein the penetrating agent used in step 1 or 2 is one or more selected from the following group A materials in an amount of 0 to 10 wt% based on the amount of water in the dispersion:
bleaching powder, hydrogen peroxide, sodium hypochlorite, calcium hypochlorite, potassium chlorate, calcium chlorate, formic acid, acetic anhydride, citric acid, sulfuric acid and phosphoric acid,
and one or more than one of the following B materials are combined, and the material amount accounts for 0-0.5 wt% of the amount of the dispersion water:
(a) a cationic surfactant, (b) an anionic surfactant, (c) a nonionic surfactant, (d) an amphoteric surfactant, wherein said:
(a) cationic surfactants, including but not limited to: one or more of octadecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride, triethanolamine monooleate, alkyl phosphate diethanol ammonium salt, octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate salt, and trihydroxyethyl quaternary ammonium methyl sulfate;
(b) anionic surfactants, including but not limited to: one or more of saponified rosin, saponified shellac, saponified product of stearic acid, saponified product of fat, dioctyl sodium sulfosuccinate, sodium 1, 2-dibutylnaphthalene-6-sulfonate, N-butyl sulfate oleate sodium salt, butyl sulfate ricinoleate di (or tri) ethanolamine salt, sodium N-oleoylmethyltaurate, sodium lauryl sulfate, sodium p-methoxyfatty amido benzenesulfonate, sodium alkylsulfonate, sodium alkylbenzenesulfonate, sodium alkyl polyoxyethylene ether sulfate, sodium benzylnaphthalene sulfonate, Turkey red oil, sodium dinaphthylmethane disulfonate, sodium methylenebismethylnaphthalene sulfonate, condensate of sodium benzylnaphthalene sulfonate and formaldehyde, potassium salt of alkyl phosphate, potassium salt of lauryl alcohol ether phosphate, and soap;
(c) nonionic surfactants, including but not limited to: ethylene oxide condensation compound of C7-C9 straight chain fat, coconut oil alkyl oxalamide, fatty alcohol polyoxyethylene ether of C12-C18, dodecyl phenol polyoxyethylene ether, octal phenol polyoxyethylene ether-10, polyethylene castor oil, sorbitan oleic acid polyoxyethylene ether, sorbitan stearate, sorbitan monooleate, sorbitan stearate polyoxyethylene ether, one or more of polypropylene glycol and ethylene oxide addition compound, coconut oil alcohol polyoxyethylene ether and polyethylene glycol octyl phenyl ether;
(d) amphoteric surfactants, including but not limited to: one or more of N-dodecyl alanine and dodecyl betaine;
the penetrant used in the separation step (1), wherein the addition amount of the sum of A and B is 0-10 wt% of the amount of dispersant water;
and (3) separating the penetrating agent used in the step (2), wherein the addition amount of the sum of A and B is 0.01-10 wt% of the usage amount of the dispersant water.
5. The method of claim 1, further comprising: after the operation of step (2) (b), the waste plastic film without paper fiber and aluminum foil is subjected to flotation, preferably water flotation, to remove the impurities with large specific gravity, such as polyvinyl halide and halogenated polyethylene, plastic containing more inorganic filler, stone and large metal blocks.
6. The method of claim 5, further comprising: the plastic-containing powdery master batch is prepared by mixing the four materials, namely the miscellaneous waste plastics with larger specific gravity, the composite paper film type waste which is not subjected to separation treatment, the aluminum-plastic composite film and the waste plastics containing heavy metal, with a crushed hard material, in particular to a natural drying material containing flocculated pure water sludge at a processing temperature lower than the melting temperature of the plastics, and crushing by using a crusher for rubber and plastic and mining.
7. The product of the process of claim 6, wherein the molding powder-containing masterbatch product is characterized by: the weight ratio of the total of the four materials of the miscellaneous waste plastics with larger specific gravity, the composite paper film waste which is not subjected to separation treatment, the aluminum-plastic composite film and the waste plastics containing heavy metals obtained by flotation to the natural drying material of the sludge or/and the hard inorganic ore powder is 5-20: 95-80 or 90-70: 10-30, and the total is 100.
8. The product obtained by the process of claim 1, 2 or 3, characterized by comprising:
a. the components are added, and the plastic powder-shaped master batch or the deeply processed material thereof is added with the mixed waste plastic or the mixed waste plastic and the sludge;
b. selecting and adding components, and regenerating paper fiber pulp or paper fiber pulp and a paper product made of the same;
c. selecting and adding components, and regenerating polyethylene or/and polypropylene plastic particles;
d. selecting and adding components, namely aluminum scraps or aluminum scraps materials which are subjected to deep processing and are used for aluminum ingot, aluminum powder, fireworks and aluminum salt and are involved in aluminum industry;
e. and (3) selecting and adding components, namely regenerated polyethylene or/and polypropylene plastic particles containing aluminum foil scrap powder.
9. Use of the product obtained by the method of claim 1 or 2 or 3 or 5 or 6, and the obtained commercial pulp is used in paper industry; the obtained regenerated aluminum scraps are applied to the manufacture of aluminum industry, including fireworks, aluminum powder paint, conductive powder, shielding films, inorganic aluminum salt and organic aluminum compound; the obtained regenerated plastic or plastic-powder-containing master batch product is applied to the plastic rubber product industry.
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| CN2007101007192A CN101054779B (en) | 2006-04-14 | 2007-04-14 | Regeneration method for waste composite paper film |
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| CN2007101007192A CN101054779B (en) | 2006-04-14 | 2007-04-14 | Regeneration method for waste composite paper film |
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