WO2005077515A1 - ポリカーボネートの分解方法 - Google Patents
ポリカーボネートの分解方法 Download PDFInfo
- Publication number
- WO2005077515A1 WO2005077515A1 PCT/JP2005/002184 JP2005002184W WO2005077515A1 WO 2005077515 A1 WO2005077515 A1 WO 2005077515A1 JP 2005002184 W JP2005002184 W JP 2005002184W WO 2005077515 A1 WO2005077515 A1 WO 2005077515A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polycarbonate
- water
- dihydroxy compound
- group
- decomposition
- Prior art date
Links
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- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 229940124543 ultraviolet light absorber Drugs 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/14—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/008—Processes carried out under supercritical conditions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/055—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group
- C07C37/0555—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group being esterified hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/42—Chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31507—Of polycarbonate
Definitions
- the present invention relates to a method of decomposing polycarbonate using water in a supercritical or subcritical state. More specifically, the present invention relates to a method of decomposing polycarbonate by the above method to recover a dihydroxy compound as a raw material.
- Polycarbonate resins are excellent in heat resistance, impact resistance and transparency, and are used as optical materials such as lenses and compact discs, and are also used in various applications such as construction materials, automobile parts, OA equipment, etc. There is. The amount used is increasing year by year and is expected to increase further in the future.
- polycarbonate compound resins in which polyolefin resin is blended with an olefin-based resin such as acrylonitrile-butadiene-styrene (A B S) resin.
- a B S acrylonitrile-butadiene-styrene
- This plastic composite resin is excellent in impact resistance, flowability, rigidity, flame retardancy, and has low warpage of molded products, and it is diverse in home appliances, OA equipment, electronic and electric parts, daily necessities, etc. Are widely used in various applications.
- Waste plastic recycling methods include (1) material recycling that reuses waste plastic as it is, and (2) chemical recycling that depolymerizes waste plastic into monomers or chemically decomposes and recovers it as useful chemical raw materials. (3) It can be broadly divided into thermal recycling, etc., in which waste plastic is recovered as thermal energy. Of these multiple recyclings, chemical recycling is used to recover chemical raw materials, so it is possible to newly synthesize new synthetic resins and chemical products from waste plastic, and can be used in a wide range of applications.
- the ester exchange is carried out using methanol in a supercritical state as a solvent, and a dihydroxy compound is disclosed in Japanese Patent Laid-Open No. 200-42049. And methods of obtaining dimethyl carbonate are disclosed. Further, Japanese Patent Publication No. 6-256 has proposed a method of hydrolyzing a polycarbonate resin in an aqueous ammonia solution to obtain a dihydroxy compound.
- JP-A-2001-3024 discloses a polycarbonate organic resin and a halogen-based organic solvent which dissolves both the polycarbonate resin and the ABS resin in the polycarbonate resin resin. It has been reported that polycarbonate resin in waste plastic is chemically decomposed in a solution containing aqueous ammonia solution, and bisphenol A and urea are recovered as useful chemical raw materials from the decomposition product. . However, since the above method uses a large amount of halogenated organic solvent, there is concern about adverse effects on the environment, and post-treatment such as neutralization of the aqueous ammonia solution is complicated and significantly reduces the economic efficiency. It is not suitable for treating and recycling a large amount of nitrate compound resin. Disclosure of the invention
- the temperature is in the range of 10 to 100 ° C., under pressure in the range of 0.1 to 1 OMP a, and the aromatic dihydroxy compound is dissolved in water at a concentration of 1% by weight or more,
- the present invention is achieved by an aqueous solution of an aromatic dihydroxy compound characterized by Preferred embodiment of the invention
- the polybasic monocarbonate to be decomposed in the present invention may be polycarbonate itself or the polycarbonate in a thermoplastic composition comprising polycarbonate and other thermoplastic resin.
- Polycarbonate may be any of aliphatic polycarbonate, alicyclic polycarbonate and aromatic polycarbonate.
- aromatic polycarbonate is preferable, for example, the following formula (1)
- R 1 , R 2 , R 3 and R 4 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl having 6 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms Or an aralkyl group having 7 to 10 carbon atoms or a halogen atom, and W is a single bond, an alkylene group having 1 to 10 carbon atoms, an alkylidene group having 2 to 10 carbon atoms, or a cycloalkenyl having 6 to 10 carbon atoms.
- What consists of a repeating unit represented by is further more preferable.
- the alkyl group having 1 to 10 carbon atoms may be linear or branched. Examples include methyl, hydroxyethyl, propyl, pentyl, octyl and decyl. Examples of the aryl group having 6 to 10 carbon atoms include phenyl, tolyl, cumyl, naphthyl and the like. Examples of the aralkyl having 7 to 10 carbon atoms include benzyl, 2-phenethyl, 2-methyl, 2_phenylethyl and the like.
- RRR 3 and R 4 independently of each other, a hydrogen atom, a methyl group and a t-butyl group are preferable, and a hydrogen atom is particularly preferable.
- the alkylene group having 1 to 10 carbon atoms may be linear or branched. Examples thereof include methylene, 1,2-ethylene, 2,2-propylene, 2,2-butylene, 1,1-decylene and the like.
- alkylidene group having 2 to 10 carbon atoms examples include ethylidene, propylidene, pentylidene, hesylidene and the like.
- a 1, 4- cyclohexylene, 2-isopropyl 1, 4- cyclohexylene etc. can be mentioned, for example.
- the cycloalkylidene group having 6 to 10 carbon atoms include, for example, cyclohexylidene, isopropylcyclohexyl and the like.
- alkylene-arylene-alkylene group having 8 to 15 carbon atoms examples include, for example, m-diisopropylphenylene group and the like.
- W a cyclohexylidene group or 2,2-propylidene group is preferable, and a 2,2-propylidene group is particularly preferable.
- the molecular weight of the polycarbonate used in the present invention is not particularly limited, but preferably the viscosity average molecular weight is 10,000 to 250,000.
- the polybasic mononate is produced by a method known per se, such as an interfacial polycondensation method of a dihydroxy compound and hydrogen or a melt polycondensation method of a dihydroxy compound and a dialkyl carbonate.
- the present invention can be subject to degradation regardless of the method of preparation.
- polycarbonate wastes such as defective products, base polymers, and used CDs generated during the production of the product can also be used as targets for decomposition.
- the waste may contain an impurity such as an A1 recording layer, or may be subjected to decomposition as it is or may be subjected to decomposition after removing the impurity.
- RR 2 , R 3 , R 4 and W are the same as in the above-mentioned formula (1), and those represented by can be mentioned as preferable ones.
- aromatic dihydroxy compounds include: 2,2-bis (4-hydroxyphenyl) propane (i.e., bisphenol A), bis (4-hydroxyphenyl) methane, 1,1-bis (4'-hydroxy) Phenyl) ethane, 1, 2-bis (4'-hydroxyphenyl) ethane, bis (4-hydroxyphenyl) phenylmethane, 1, 1_ bis (4'-hydroxyphenyl) 1-phenetane, 2 — (4′-hydroxyphenyl) mono- (3′-hydroxyphenyl) propane, 2, 2 bis (4 ′ hydroxy phenyl) butane, 1, 1-bis (4 ′ hydroxy ester) Enyl) isobutane and 4, 4 'dihydroxy dif And the like.
- 2,2-bis (4-hydroxyphenyl) propane i.e., bisphenol A
- bis (4-hydroxyphenyl) methane 1,1-bis (4'-hydroxy) Phenyl) ethane
- 2-bis (4'-hydroxyphenyl) ethane bis
- the aromatic polycarbonate to be used particularly preferably as a decomposition target in the present invention is an aromatic polycarbonate using 2,2_bis (4-hydroxyphenyl) propane.
- thermoplastic resin which forms the thermoplastic composition together with the above-mentioned polycarbonate is not particularly limited, but an olefin resin is preferable.
- an olefin-based resin any resin may be used as long as it can be used by generally forming a composition with polycarbonate, but as a representative resin, for example, acrylic acid, 2-tril-butadiene-styrene resin (conventionally ABS resin) And polystyrene resin (PS resin), polymethyl methacrylate resin (PMMA resin), and polyethylene resin (PE resin).
- ABS resin is widely used especially because it has shock resistance, heat and oil resistance, and processability, and has a large market.
- the thermoplastic composition preferably has a polycarbonate content of 10 to 5% by weight, preferably 40 to 90% by weight, and other thermoplastic resins of 5 to 90% by weight, more preferably 1 It consists of a ratio of 0 to 60%.
- the above-mentioned ABS resin polymerizes a monomer comprising a gen-based rubber, an aromatic vinyl-based monomer, a vinyl cyanide-based monomer and, if necessary, another vinyl-based monomer copolymerizable therewith.
- the present invention is applicable to any of such graft polymers and copolymers.
- Examples of a method for producing the A 3 S resin include emulsion polymerization, suspension polymerization, bulk polymerization, solution polymerization, and a method combining these.
- Examples of the gen-based rubbers include polybutadiene having a glass transition temperature of 0 ° C. or less, a styrene-butadiene copolymer, and an acrylonitrile-butadiene copolymer.
- aromatic vinyl monomer examples include styrene, ⁇ -methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, t-butylstyrene, ⁇ -methylvinyltoluene, dimethylstyrene, chlorostyrene, Ziku Mouth styrene, brom styrene, dibromo styrene, vinyl naphthene, etc. may be mentioned. These can be used alone or in combination of two or more. Among these, in particular, styrene is generally used.
- Examples of the above-mentioned vinyl cyanide-based monomer include acrylonitrile, methacrylonitrile, fumaronitrile and the like. These can be used alone or in combination of two or more. Among these, in particular acrylonitrile is generally used.
- vinyl monomers and vinyl aromatic monomers copolymerizable with vinyl cyanide monomers for example, acrylic acid, methacrylic acid, maleic acid, maleic anhydride, citraconic anhydride
- unsaturated carboxylic acids or unsaturated dicarboxylic anhydrides such as methyl, methyl (meth) acrylate, acetyl (meth) acrylate, propyl (meth) acrylate, unsaturated carboxylic acids such as 2-ethylhexyl (meth) atarylate
- maleimide monomers such as acid alkyl ester, maleimide, methyl maleimide, cetyl maleimido, N-phenyl maleimide, O-chloro-N-phenyl maleimide and the like.
- the thermoplastic resin composition may further contain an additive such as a phosphorus-based flame retardant compound, an octalogen-based flame retardant compound, a rubber-like substance, and a non-fibrous fibrous filler.
- a phosphorus flame retardant compound for example, inorganic phosphorus compounds such as red phosphorus, phosphine, hypophosphorous acid, phosphorous acid, metaphosphoric acid, pyrophosphoric acid, phosphoric anhydride, or known organic phosphoric acid ester compounds Can be mentioned.
- halogen-based flame retardant compounds include tetrabromobisphenol A and derivatives thereof, tetrabromobisphenol S, polybromodiphenyl ether, brominated polybasic monopoate oligomers and modified products thereof, brominated epoxy oligomers And modified products thereof, brominated phenoxy resins, brominated polystyrenes, brominated phenyl ethers, tryptophan phenoxy compounds, brominated triazine compounds, chlorinated fused alicyclic compounds and the like.
- the rubbery substance for example, a polymer having a glass transition temperature of ⁇ 100 ° C. or more and 50 ° C. or less, a copolymer obtained by copolymerizing the polymer, an isoprene type, a butadiene type, Olefin-based, polyester elastomer-based, acrylic polymers, etc. It can be mentioned. These may be homopolymers or copolymers. Among these, those widely used include butadiene-based and olefin-based copolymers.
- styrene-butadiene block copolymer which is a copolymer with styrene, or a hydrogenated product thereof is used.
- a ternary copolymer with an acid component is also useful, and specifically, acrylic acid-butylen-styrene copolymer, carboxylic acid, carboxylic acid-containing acid compound The force of styrene-styrene copolymer can be mentioned.
- fibrous filler although depending on the target degree of reinforcement of the thermoplastic resin composition, one having an aspect ratio of 2 to 100 can be mentioned. Specifically, glass fiber, carbon fiber, titanium oxide glass fiber, fibrous wollastonite and the like can be mentioned.
- Non-fibrous fillers are widely used, as improvements in strength and dimensional stability can be obtained simultaneously.
- the shape may be plate-like, granular or amorphous. Specific examples thereof include talc, my strength, clay, silica, glass flakes, glass beads, hollow fibers and the like.
- the filler may be added alone or in combination of two or more.
- thermoplastic resin composition in the present invention may, if necessary, be an alicyclic saturated hydrocarbon resin, a higher fatty acid ester, a petroleum hydrocarbon, an aromatic hydrocarbon petroleum resin, a poly It may contain oxyalkylenes, terpenes, waxes, fluorocarbon resins, antioxidants, mold release agents, antistatic agents, stabilizers, ultraviolet light absorbers, pigments, and the like.
- the polycarbonate in the polycarbonate or thermoplastic resin composition as described above is decomposed with water in a supercritical or subcritical state.
- water in the supercritical state may be referred to as supercritical water
- water in the subcritical state may be referred to as subcritical water.
- the decomposition reaction of the present invention decomposes the polycarbonate to form the corresponding dihydroxy compound and carbon dioxide.
- a supercritical fluid refers to a material at a critical temperature, above the critical pressure.
- Supercritical water refers to water with a critical temperature of 37 4 ° C or more and a critical pressure of 2 2 MP a or more.
- Critical water refers to water which is not in the supercritical state at a temperature of 350 ° C. or more and a pressure of 18 MP a or more. It is known that water in the supercritical or subcritical state fluctuates widely in various physical property values such as density, ion product, ion concentration, dielectric constant, etc. according to the temperature and pressure. Is easy. As a result, reactions in supercritical water or subcritical water may be subject to acid and base catalysis and solvent effects that differ depending on temperature and pressure.
- the decomposition in the present invention is that the temperature of supercritical water or subcritical water is the critical temperature.
- thermoplastic resins such as ABS resin also proceeds to form a wide variety of compounds, which is not preferable because it may reduce the purity of the product and complicate the recovery process.
- the decomposition is preferably carried out under a pressure condition of 18 to 40 M Pa, more preferably 20 to 30 M Pa. If the pressure is 40 M Pa or more, it is not preferable because a large amount of energy cost is required in the industrial process, and a large burden is placed on safety and economy. In addition, if it is lower than 18 M Pa, the above-mentioned various properties peculiar to subcritical water become difficult to develop, which is not preferable.
- the present invention is preferably ion product of supercritical water or subcritical water (Kw) is carried out in 1 0- 1 5 mo 1 2 Roh kg 2 following conditions, 1 0- 1 7 mo 1 2 / kg 2 or less It is more preferable to If processing is performed in this state, the polycarbonate in the polycarbonate or resin composition is decomposed in a very short time, and the dihydroxy compound has high selectivity. Can be obtained by This is considered to be due to the fact that the reduction of the ion concentration in the reaction site provides an optimum environment for the decomposition of the polycarbonate.
- the lower limit of the ion product is not particularly limited, but it is more preferable to set it as 10-23 3 mo 1 2 Z kg 2 .
- the dielectric constant of the supercritical water or subcritical water is preferably 10 or less, more preferably 5 or less.
- the dielectric constant is a coefficient showing the relation between the charge and the force given by it in the substance, and it is an indicator of the polarity of the solvent. Since the dielectric constant of water at room temperature is as high as about 80, inorganic substances such as electrolytes dissolve well, but organic substances hardly dissolve. However, when the temperature is raised, the dielectric constant decreases gradually, and in supercritical water or subcritical water above 37 ° C, the value becomes about 10, which is the same value as an organic solvent with small polarity. As a result, the opposite phenomenon to ordinary water occurs, that the organic matter dissolves well but the inorganic matter hardly dissolves.
- the permeability of supercritical water or subcritical water to a polycarbonate or thermoplastic resin composition is improved by setting the dielectric constant to 10 or less, and the supercritical water to subcritical water is made of polycarbonate. Can be efficiently contacted.
- it also has the effect of dissolving and dispersing the dihydroxy compound, which is a decomposition product, in supercritical water or subcritical water, and suppressing its secondary decomposition.
- the dielectric constant is larger than this value, not only permeability of the supercritical water to the resin is reduced, but the dihydroxy compound and the supercritical water or subcritical water are phase separated, and the dihydroxy compound is separated at the phase interface separated. Is not preferable because the decomposition of
- the reaction time in the present invention is not particularly limited, under the above conditions, the polycarbonate resin in the polycarbonate / thermoplastic resin composition is decomposed in a very short time of, for example, less than 1 minute to 5 minutes. be able to.
- the reaction time is extended, decomposition of the obtained dihydroxy compound proceeds and the purity is lowered, and in the industrial process, the throughput per unit time decreases, or the volume of the reaction vessel is large. It is not preferable because it becomes louder.
- the decomposition method of the present invention is preferably carried out by a method in which the polycarbonate is an aromatic polycarbonate and an aromatic dihydroxy compound is produced as a decomposition product.
- the aromatic polycarbonate comprises the repeating unit represented by the formula (1)
- the decomposition product is an aromatic dihydroxy compound represented by the formula (2).
- the dihydroxy compound produced by the above reaction is an aromatic dihydroxy compound
- this is at a temperature of 10 ° C. to: L 00 ° C.
- It is recovered as a metastable homogeneous aqueous solution dissolved in water at a concentration.
- the solubility of aromatic dihydroxy compounds in water is known to be about 100 ppm at a temperature pressure condition of 25 and 0.1 MPa and is hardly soluble under normal conditions.
- the above aqueous solution is obtained by lowering the temperature from an aqueous solution of the aromatic dihydroxy compound in supercritical water or subcritical water, and the aromatic dihydroxy compound is obtained at a higher concentration than conventionally known aqueous solutions of aromatic dihydroxy compounds. It can be said that it is a completely new aqueous solution containing.
- the fact that the decomposition products are obtained in the above state is very preferable because it can not only simplify the product purification process and recovery process in an industrial process, but also prevent clogging of pipes and valves.
- the aromatic dihydroxy compound in the aqueous solution can be purified and recovered by a known crystallization operation, whereby an aromatic dihydroxy compound of high purity can be obtained.
- the resulting dihydroxy compound is obtained as the same homogeneous aqueous solution as described above.
- thermoplastic resin such as ABS ⁇ J3 has a low decomposition rate and remains as a solid, so that it is possible to easily recover the aqueous solution of dihydroxy compound by adding solid-liquid separation operation.
- the thermoplastic resin composition contains an additive such as a filler, the additive also remains as a solid, and therefore, a solid-liquid separation operation may be similarly performed.
- the aromatic dihydroxy compound in the aqueous solution can be purified and recovered by a known crystallization operation such as cooling, whereby an aromatic dihydroxy compound of high purity can be obtained.
- heat resistance such as ABS resin
- the plastic resin is decomposed and converted to oil, but in this case, in the industrial process, it is possible to easily recover the dihydroxy compound from the water layer by liquid-liquid separation between the water layer and the oil layer.
- the decomposition method of the present invention can be carried out using a known polymer decomposition apparatus.
- a reactor for hydrolysis with supercritical water or subcritical water, a supply means for supplying polycarbonate or a thermoplastic resin composition and supercritical water or subcritical water to the reactor, and supercritical water in the reactor A filtration means for filtering the treated fluid after hydrolysis with water or subcritical water with a filter to remove insoluble impurities, and separating the filtered treated fluid into water and a dihydroxy compound which is a decomposition product It is preferable to comprise means and a water treatment means for treating the water separated by the separation means.
- the polycarbonate or thermoplastic resin composition as a recycling material is (1) powdered in a powder frame to form a slurry, (2) heated to a molten state, (3) dissolved in a solvent, or (4) It is supplied to the reaction vessel as it is solid. Impurities in the recycled material may be removed in advance by a process such as rolling, and in (2) or (3), the filtering means may be removed by installing it in the front stage of the reaction vessel, and the above impurities Removal means may be used in combination.
- the reaction vessel may be a flow type, semi-batch type, or batch type reactor, but the flow type is preferable because the throughput can be increased.
- reaction solvent and the raw materials can be supplied to the reaction vessel after being heated in advance by a flow type or a semi-batch type apparatus by a heat exchanger or the like.
- the means for separating water and the dihydroxy compound is not particularly limited. According to the present invention, it is possible to crystallize a high purity dihydroxy compound only by a cooling operation, and the crystallized dihydroxy compound can be separated by solid-liquid separation means such as centrifugation.
- the water after separation is treated so as to have a predetermined water quality by a known water treatment means and returned to the reactor again, thereby securing supercritical water or water while ensuring good reaction controllability in the reactor. Treated water can be reused as a supply of critical water to form an economic water cycle.
- replenished water having a predetermined water quality for example, water treated to the pure water level as replenished water to the reactor
- good reaction controllability can be secured in the reactor, so the dihydroxy compound is highly purified. , And can be recovered with high yield Saru.
- a high quality, high grade polycarbonate can be produced by purifying as necessary the dihydroxy compound obtained by the present invention, recycling it and polymerizing with the carbonate precursor.
- application to polycarbonate composite resins and other resins starting from dihydroxy compounds is also possible.
- the above polymerization may be carried out using any known method, but an interfacial polymerization method or a melt polymerization method is preferred.
- the contents were a colorless, transparent, uniform aqueous solution under the temperature and pressure conditions of 0. IMP a.
- the minutes were not recognized at all.
- gas generation was confirmed at the time of removal.
- precipitation of needle crystals was observed.
- Jetyl ether was added to the above aqueous solution mixed with crystals, the mixture was stirred, and the ether phase was analyzed by gas chromatography (HP 5890). As a result, it was found that 0.2 g of 2,2-bis (4-hydroxyphenyl) propane (i.e., It was found that it contains bisphenol A). Therefore, the concentration of the aqueous solution of 2, 2-bis (4-hydroxyphenyl) propane immediately after recovery is calculated to be about 10 wt% at 20 ° C and 0. IMP a.
- Example 2 The same procedure as in Example 1 was carried out except that 0.84 g of polycarbonate resin pellet was placed in a reaction tube, 0.84 g of water was charged so that the pressure would be 25 MPa, and the sample was immersed in a sand bath preheated to 420 ° C. It was disassembled. The ion product and relative permittivity under the above conditions are shown in Table 1. After the reaction, the contents were taken out into a glass bottle, and the contents were a colorless and transparent homogeneous aqueous solution under the conditions of a temperature of 20 ⁇ 0. IMP a and under pressure conditions, and no solid content was observed at all. The amount of 2, 2-bis (4-hydroxyphenyl) propane contained in the aqueous solution was determined in the same manner as in Example 1 and is shown in Table 1. Example 3
- Example 1 The same procedure as in Example 1 was carried out except that 0.16 g of polycarbonate resin pellet was put in a reaction tube, 0.60 g of water was charged so that the pressure would be 20 MPa, and the sample was immersed in a sand bath preheated to 40 O. It was disassembled.
- the ion product and relative permittivity under the above conditions are shown in Table 1.
- the contents were taken out into a glass bottle, and at 20, the temperature was 0. IMP a, under pressure conditions and the contents were a colorless, transparent, homogeneous aqueous solution, and no solid content was observed.
- the amount of 2,2-bis (4-hydroxyphenyl) propane (bisphenol A) contained in the aqueous solution was determined in the same manner as in Example 1 and is shown in Table 1.
- Example 2 In the same manner as in Example 1 except that 0.70 g of polycarbonate resin pellet was placed in a reaction tube, 0.66 g of water was charged so that the pressure was 25 MP a, and the sample was immersed in a sand bath preheated to 450 ° C. And disassembled.
- the ion product and relative permittivity under the above conditions are shown in Table 1.
- the amount of 2, 2-bis (4-hydroxyphenyl) propane (bisphenol A) contained in the aqueous solution obtained by the decomposition was determined and is shown in Table 1.
- Example 5 Dissolve in the same manner as in Example 1 except that 0.21 g of polycarbonate resin pellet was put in a reaction tube, 2.1 g of water was charged so that the pressure was 30 MP a, and the sample was immersed in a preheated sand bath at 400. Did. The ion product and relative permittivity under the above conditions are shown in Table 1. After the reaction, the contents were taken out to a glass bottle, and the contents were a colorless, transparent, uniform aqueous solution under the temperature condition of temperature of 20. IMPa at 20, and no solid content was observed. The amount of 2,2-bis (4-hydroxyphenyl) propane (bisphenol A) contained in the aqueous solution was determined in the same manner as in Example 1 and is shown in Table 1.
- reaction tube was immersed in water and quenched to room temperature, and the contents were taken out into a glass bottle
- the content was a clear aqueous solution containing A BS solid resin content
- the generation of a gas was confirmed at the time of taking out Further, when the above aqueous solution was allowed to stand for a certain time, needle crystals were precipitated. It was observed.
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- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
Description
Claims
Priority Applications (4)
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KR1020067016190A KR101201270B1 (ko) | 2004-02-12 | 2005-02-08 | 폴리카보네이트의 분해 방법 |
EP05710186A EP1731218A4 (en) | 2004-02-12 | 2005-02-08 | PROCESS FOR DECOMPOSING POLYCARBONATE |
JP2005518004A JP4500774B2 (ja) | 2004-02-12 | 2005-02-08 | ポリカーボネートの分解方法 |
US10/588,901 US7585930B2 (en) | 2004-02-12 | 2005-02-08 | Method of decomposing a polycarbonate |
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JP2004-34596 | 2004-02-12 | ||
JP2004034596 | 2004-02-12 | ||
JP2004-94672 | 2004-03-29 | ||
JP2004094672 | 2004-03-29 |
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WO2005077515A1 true WO2005077515A1 (ja) | 2005-08-25 |
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US (1) | US7585930B2 (ja) |
EP (1) | EP1731218A4 (ja) |
JP (1) | JP4500774B2 (ja) |
KR (1) | KR101201270B1 (ja) |
TW (1) | TW200536879A (ja) |
WO (1) | WO2005077515A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008195646A (ja) * | 2007-02-13 | 2008-08-28 | Teijin Chem Ltd | ビスフェノール化合物の回収方法 |
JP2016500709A (ja) * | 2012-12-21 | 2016-01-14 | サウディ ベーシック インダストリーズ コーポレイション | アクリロニトリル−ブタジエン−スチレン含有ポリカーボネート組成物のアルコーリシスのための方法 |
WO2022145366A1 (ja) * | 2020-12-28 | 2022-07-07 | 三菱ケミカル株式会社 | ビスフェノールaの製造方法及びポリカーボネート樹脂の製造方法 |
Families Citing this family (7)
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US8846858B2 (en) | 2012-12-21 | 2014-09-30 | Saudi Basic Industries Corporation | Method for alcoholysis of polycarbonate compositions containing flame retardant or acrylonitrile-butadiene-styrene |
US8680227B1 (en) | 2012-12-21 | 2014-03-25 | Saudi Basic Industries Corporation | Manufacture of dihydroxy aromatic compounds by alcoholysis of polycarbonate-containing compositions |
EP2746249B1 (en) | 2012-12-21 | 2017-06-07 | Saudi Basic Industries Corporation | Manufacture of dihydroxy aromatic compounds by alcoholysis of flame retardant-containing polycarbonate compositions |
US9328046B2 (en) * | 2013-10-15 | 2016-05-03 | Saudi Basic Industries Corporation | Method for direct ammonolysis of polycarbonate-containing materials and products |
EP4047073A1 (de) | 2021-02-17 | 2022-08-24 | Covestro Deutschland AG | Pyrolyse von polycarbonat-haltigem material zur wiedergewinnung von rohstoffen |
EP4198076A1 (en) * | 2021-12-16 | 2023-06-21 | Covestro Deutschland AG | Process for recovery of rubber-modified vinyl(co)polymer |
EP4201987A1 (de) | 2021-12-22 | 2023-06-28 | Covestro Deutschland AG | Pyrolyse von polycarbonat-haltigem material in kombination mit phosphorhaltiger organischer verbindung zur wiedergewinnung von rohstoffen |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11286572A (ja) * | 1998-04-02 | 1999-10-19 | Tohoku Electric Power Co Inc | プラスチック廃棄物の油化反応器ユニット及び油化装置 |
JP2000053800A (ja) * | 1998-08-06 | 2000-02-22 | Asahi Chem Ind Co Ltd | 廃プラスチックの分解処理方法およびその装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885407A (en) | 1988-07-11 | 1989-12-05 | General Electric Company | Method for recovering a dihydric phenol from a scrap polyester |
JP3225238B2 (ja) * | 1990-09-08 | 2001-11-05 | 株式会社神戸製鋼所 | 合成高分子化合物の熱分解方法 |
US5326791A (en) * | 1991-12-20 | 1994-07-05 | Exxon Research And Engineering Company | Process for separation of hydrolyzable from non-hydrolyzable waste plastics for recovery of starting materials and other conversion processes, respectively |
EP0581074B1 (en) * | 1992-07-27 | 1999-03-10 | Mitsui Chemicals, Inc. | Processes for producing aromatic polycarbonate oligomer and aromatic polycarbonate |
JP3659717B2 (ja) * | 1995-11-30 | 2005-06-15 | 株式会社神戸製鋼所 | 化学プラント内廃棄物の分解方法および装置 |
JP3367822B2 (ja) * | 1996-06-06 | 2003-01-20 | 三菱重工業株式会社 | プラスチック廃棄物の油化方法及び装置 |
US6462230B1 (en) | 1997-01-16 | 2002-10-08 | Kabushiki Kaisha Kobe Seiko Sho | Method of and apparatus for decomposing wastes |
CN1101417C (zh) | 1997-01-20 | 2003-02-12 | 株式会社神户制钢所 | 废弃物的分解方法和装置 |
JP4424763B2 (ja) * | 1998-04-09 | 2010-03-03 | サントリーホールディングス株式会社 | 超臨界水処理による芳香族化合物の製造方法 |
JPH11302442A (ja) * | 1998-04-23 | 1999-11-02 | Sumitomo Bakelite Co Ltd | 熱硬化性樹脂の分解処理方法 |
JP2001170603A (ja) * | 1999-12-21 | 2001-06-26 | Mitsuo Kamiwano | 廃棄物のリサイクル処理方法およびリサイクル処理システム |
JP2001302844A (ja) | 2000-04-25 | 2001-10-31 | Victor Co Of Japan Ltd | ポリカーボネート樹脂アロイを主成分とする廃プラスチックからの有用物回収方法 |
JP4562297B2 (ja) * | 2001-02-06 | 2010-10-13 | 株式会社アサカ理研 | 超臨界水を用いた電子部品からの無機物部品材料の回収方法 |
JP2003041049A (ja) | 2001-08-02 | 2003-02-13 | Kansai Research Institute | ポリカーボネート樹脂のリサイクル方法 |
CN1481347A (zh) * | 2001-10-26 | 2004-03-10 | 帝人株式会社 | 芳香族聚碳酸酯的解聚方法 |
JP4187456B2 (ja) * | 2002-04-08 | 2008-11-26 | 中部電力株式会社 | ポリアミド樹脂の製造方法 |
-
2005
- 2005-02-05 TW TW94104089A patent/TW200536879A/zh not_active IP Right Cessation
- 2005-02-08 US US10/588,901 patent/US7585930B2/en not_active Expired - Fee Related
- 2005-02-08 JP JP2005518004A patent/JP4500774B2/ja not_active Expired - Fee Related
- 2005-02-08 EP EP05710186A patent/EP1731218A4/en not_active Withdrawn
- 2005-02-08 KR KR1020067016190A patent/KR101201270B1/ko not_active IP Right Cessation
- 2005-02-08 WO PCT/JP2005/002184 patent/WO2005077515A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11286572A (ja) * | 1998-04-02 | 1999-10-19 | Tohoku Electric Power Co Inc | プラスチック廃棄物の油化反応器ユニット及び油化装置 |
JP2000053800A (ja) * | 1998-08-06 | 2000-02-22 | Asahi Chem Ind Co Ltd | 廃プラスチックの分解処理方法およびその装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1731218A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008195646A (ja) * | 2007-02-13 | 2008-08-28 | Teijin Chem Ltd | ビスフェノール化合物の回収方法 |
JP2016500709A (ja) * | 2012-12-21 | 2016-01-14 | サウディ ベーシック インダストリーズ コーポレイション | アクリロニトリル−ブタジエン−スチレン含有ポリカーボネート組成物のアルコーリシスのための方法 |
WO2022145366A1 (ja) * | 2020-12-28 | 2022-07-07 | 三菱ケミカル株式会社 | ビスフェノールaの製造方法及びポリカーボネート樹脂の製造方法 |
Also Published As
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US20070185309A1 (en) | 2007-08-09 |
US7585930B2 (en) | 2009-09-08 |
EP1731218A1 (en) | 2006-12-13 |
KR101201270B1 (ko) | 2012-11-14 |
TW200536879A (en) | 2005-11-16 |
JPWO2005077515A1 (ja) | 2007-10-18 |
TWI357422B (ja) | 2012-02-01 |
EP1731218A4 (en) | 2010-12-08 |
JP4500774B2 (ja) | 2010-07-14 |
KR20060134062A (ko) | 2006-12-27 |
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