WO2004083156A1 - 芳香族ビニル化合物の重合抑制剤および重合抑制方法 - Google Patents
芳香族ビニル化合物の重合抑制剤および重合抑制方法 Download PDFInfo
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- WO2004083156A1 WO2004083156A1 PCT/JP2004/003540 JP2004003540W WO2004083156A1 WO 2004083156 A1 WO2004083156 A1 WO 2004083156A1 JP 2004003540 W JP2004003540 W JP 2004003540W WO 2004083156 A1 WO2004083156 A1 WO 2004083156A1
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- Prior art keywords
- group
- carbon atoms
- compound
- polymerization
- aromatic vinyl
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- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000003112 inhibitor Substances 0.000 title claims abstract description 39
- 150000001875 compounds Chemical class 0.000 title claims abstract description 25
- 230000002401 inhibitory effect Effects 0.000 title abstract description 11
- -1 quinone methide compound Chemical class 0.000 claims description 126
- 125000004432 carbon atom Chemical group C* 0.000 claims description 45
- AZQWKYJCGOJGHM-UHFFFAOYSA-N para-benzoquinone Natural products O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 claims description 44
- 229920002554 vinyl polymer Polymers 0.000 claims description 33
- 125000000217 alkyl group Chemical group 0.000 claims description 21
- 229940012229 genone Drugs 0.000 claims description 21
- 125000003545 alkoxy group Chemical group 0.000 claims description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 6
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 claims description 4
- QQBZFCFCMKHPPC-UHFFFAOYSA-N 2-pentadecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O QQBZFCFCMKHPPC-UHFFFAOYSA-N 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- JIRHAGAOHOYLNO-UHFFFAOYSA-N (3-cyclopentyloxy-4-methoxyphenyl)methanol Chemical compound COC1=CC=C(CO)C=C1OC1CCCC1 JIRHAGAOHOYLNO-UHFFFAOYSA-N 0.000 claims description 3
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 claims description 3
- CVLHGLWXLDOELD-UHFFFAOYSA-N 4-(Propan-2-yl)benzenesulfonic acid Chemical compound CC(C)C1=CC=C(S(O)(=O)=O)C=C1 CVLHGLWXLDOELD-UHFFFAOYSA-N 0.000 claims description 3
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 3
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 3
- 125000004414 alkyl thio group Chemical group 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 3
- CJMZLCRLBNZJQR-UHFFFAOYSA-N ethyl 2-amino-4-(4-fluorophenyl)thiophene-3-carboxylate Chemical compound CCOC(=O)C1=C(N)SC=C1C1=CC=C(F)C=C1 CJMZLCRLBNZJQR-UHFFFAOYSA-N 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 229940098779 methanesulfonic acid Drugs 0.000 claims description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 2
- 125000003884 phenylalkyl group Chemical group 0.000 claims description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 230000005764 inhibitory process Effects 0.000 description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 13
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 8
- LGRLWUINFJPLSH-UHFFFAOYSA-N methanide Chemical compound [CH3-] LGRLWUINFJPLSH-UHFFFAOYSA-N 0.000 description 7
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- RKMGAJGJIURJSJ-UHFFFAOYSA-N 2,2,6,6-tetramethylpiperidine Chemical compound CC1(C)CCCC(C)(C)N1 RKMGAJGJIURJSJ-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- OWZPCEFYPSAJFR-UHFFFAOYSA-N 2-(butan-2-yl)-4,6-dinitrophenol Chemical compound CCC(C)C1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O OWZPCEFYPSAJFR-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000002635 aromatic organic solvent Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- GJYCVCVHRSWLNY-UHFFFAOYSA-N 2-butylphenol Chemical compound CCCCC1=CC=CC=C1O GJYCVCVHRSWLNY-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 125000002843 carboxylic acid group Chemical group 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- RBXVOQPAMPBADW-UHFFFAOYSA-N nitrous acid;phenol Chemical class ON=O.OC1=CC=CC=C1 RBXVOQPAMPBADW-UHFFFAOYSA-N 0.000 description 2
- 238000005504 petroleum refining Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VDVUCLWJZJHFAV-UHFFFAOYSA-N 2,2,6,6-tetramethylpiperidin-4-ol Chemical compound CC1(C)CC(O)CC(C)(C)N1 VDVUCLWJZJHFAV-UHFFFAOYSA-N 0.000 description 1
- MHKBMNACOMRIAW-UHFFFAOYSA-N 2,3-dinitrophenol Chemical class OC1=CC=CC([N+]([O-])=O)=C1[N+]([O-])=O MHKBMNACOMRIAW-UHFFFAOYSA-N 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- WZWIQYMTQZCSKI-UHFFFAOYSA-N 4-cyanobenzaldehyde Chemical compound O=CC1=CC=C(C#N)C=C1 WZWIQYMTQZCSKI-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical group NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- MPMBRWOOISTHJV-UHFFFAOYSA-N but-1-enylbenzene Chemical compound CCC=CC1=CC=CC=C1 MPMBRWOOISTHJV-UHFFFAOYSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012690 ionic polymerization Methods 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical group O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/20—Use of additives, e.g. for stabilisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/02—Sulfonic acids having sulfo groups bound to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C50/00—Quinones
- C07C50/02—Quinones with monocyclic quinoid structure
- C07C50/06—Quinones with monocyclic quinoid structure with unsaturation outside the quinoid structure
Definitions
- the present invention relates to an aromatic vinyl compound which is effective in preventing polymerization occurring in the production, purification, storage or transportation steps of an aromatic vinyl compound, and in preventing petroleum refining plants and the like from generating stains due to polymerization of the aromatic vinyl compound.
- the present invention relates to a compound polymerization inhibitor and a method for suppressing polymerization.
- Aromatic vinyl compounds are industrially very important compounds as raw materials for the production of polystyrene, synthetic rubber, and ABS resin, and are produced in large quantities on an industrial scale.
- aromatic vinyl compounds are extremely easily polymerized, and easily polymerize due to factors such as heat during the production or purification process and during storage, which lowers the yield of aromatic vinyl compound monomers and further reduces
- petroleum refining plants and the like have a problem in that the presence of the aromatic vinyl compound causes stains caused by polymerization of the compound.
- a method of adding a polymerization inhibitor into a process stream has been proposed and put to practical use. Specifically 2
- Ditrophenols such as, 4-dinitrophenol are used. Since ditrophenols have the effect of lowering the polymerization rate, they have the property of inhibiting polymerization for a relatively long time and are widely used. However, nitrophenols are classified as self-reactive substances under Class 5 of the Fire Service Law and are classified as poisonous substances. Therefore, strict attention must be paid to their handling. Therefore, as a method of preventing polymerization instead of the method of using these polymerization inhibitors, a method of using an N-year-old xyl compound as a thermal polymerization inhibitor of styrene (see Japanese Patent Application Laid-Open No. H10-65534) has been proposed. Was done.
- N-year-old xyl compounds are extremely effective in suppressing the initial polymerization, when they disappear by reaction with the radical, polymerization occurs at the same rate as in the absence of the drug, and in particular, aromatic vinyl compounds are At the bottom of the distillation column for the purpose of separation and purification, for example, when the residence time of the process liquid is relatively long, or in a separation process having a plurality of distillation columns, In the distillation column, the N-year-old xyl compound was consumed and there was a problem that suppression of polymerization could not be expected.
- 7-arylquinone methide and a method of using 7-arylquinone methide in combination with an N-oxyl compound as a compound that does not fall under the category of a toxic substance and can be a substitute for the two-trofen Xnols [Japanese Patent Application Laid-Open No. 911/1991] No. 654008] was proposed.
- 7-arylquinone methide is safer than dinitrophenols and is an excellent polymerization inhibitor. Because of its inferiority, a polymerization inhibitor having a high repelling effect has been strongly desired. Disclosure of the invention
- An object of the present invention is to provide a polymerization inhibitor which is easy to handle, has low toxicity, and has a high polymerization inhibitory effect on an aromatic vinyl compound, and a method for inhibiting polymerization.
- the present inventors have studied the polymerization reaction of an aromatic vinyl compound in detail, and found that by combining a specific quinone methide and an organic sulfonic acid compound, the initial polymerization inhibition period becomes longer and longer. The inventors have found that polymerization is suppressed, and have accomplished the present invention.
- the invention according to claim 1 includes an aromatic compound comprising a quinone methide compound represented by the following general formula (1) and an organic sulfone oxide compound represented by the following general formula (2): It is a polymerization inhibitor for vinyl compounds.
- R and R 2 are each independently an alkyl group having 4 to 18 carbon atoms, a cycloalkyl group having 5 to 12 carbon atoms or a C 7 to 15 carbon atom; 3 is a phenyl group or an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, an alkylthio group having 1 to 8 carbon atoms, an alkoxycarbonyl group having 2 to 8 carbon atoms, a hydroxy group, a nitro group, a cyano Represents a phenyl group having 1 to 3 substituents selected from a group represented by the following formula: O
- R 4 is a linear or branched alkyl group having 1 to 32 carbon atoms, an alkylphenyl group having a linear or branched alkyl group having 1 to 32 carbon atoms, or a linear chain having 1 to 32 carbon atoms. Or an alkylnaphthyl group having a branched alkyl group)
- the invention according to claim 2 is the polymerization inhibitor for an aromatic vinyl compound according to claim 1, wherein the quinone methide compound is 2,6-di-tert-butyl-14-benzylidene-cyclo.
- the invention according to claim 3 is the polymerization inhibitor for an aromatic vinyl compound according to claim 1, wherein the organic sulfonic acid compound is methanesulfonic acid, toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid, At least one selected from sulfonic acid, dodecylbenzenesulfonic acid, pentadecylbenzenesulfonic acid and dinonylnaphthalenesulfonic acid. ⁇ .
- the invention according to claim 4 is a process for producing, purifying, storing or transporting an aromatic vinyl compound, wherein the quinone methide compound represented by the general formula (1) and the quinone methide compound represented by the general formula (2) are used.
- a method for suppressing polymerization of an aromatic vinyl compound which comprises adding an organic sulfonic acid compound to be used.
- the invention according to claim 5 is a method for suppressing the polymerization of an aromatic vinyl compound according to claim 4, further comprising the step of simultaneously using an N-hydroxy compound represented by the following general formula (3). It is characterized by being added.
- R 5 is a hydrogen atom, an oxygen atom, a hydroxyl group, an alkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a carboxylic acid having 1 to 3 carbon atoms or an amide having 1 to 3 carbon atoms. Indicates)
- the invention according to claim 6 is the method for suppressing polymerization of an aromatic vinyl compound according to claim 5, wherein the N-year-old xyl compound is 2,2,6,6-tetramethylpiperidine monoamine.
- N-year-old xyl compound is 2,2,6,6-tetramethylpiperidine monoamine.
- 1-year-old xyl and 4-year-old oxo-1,2,2,6,6-tetramethylpiperidine 1 1-at least 1-year-old xyl More than a species.
- the present invention relates to a polymerization inhibitor for an aromatic vinyl compound and a method for suppressing polymerization in a process of producing, purifying, storing, or transporting an aromatic vinyl compound.
- the target aromatic vinyl compounds are styrene, methylstyrene, ethylstyrene, divinylbenzene and the like.
- the present invention is a polymerization inhibitor containing a quinone methide compound and an organic sulfonic acid compound which are effective in preventing the polymerization by adding the aromatic vinyl compound to the relevant step.
- the quinone methide compound used in the present invention is represented by the above general formula (1 :), wherein and R 2 are each independently an alkyl group having 4 to 18 carbon atoms, a cycloalkyl group having 5 to 12 carbon atoms. Or a phenylalkyl group having 7 to 15 carbon atoms, R 3 is a phenyl group or an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, an alkylthio group having 1 to 8 carbon atoms, and an alkyl group having 2 to 8 carbon atoms.
- 2,6-di-1 ert-substituted equivalents of butylphenol It can be obtained by reacting a benzaldehyde having a group.
- the organic sulfonic acid compound used in the present invention is an organic free sulfonic acid compound represented by the general formula (2).
- Alkali metal salts such as sodium salt and lithium earth salt, alkaline earth metal salts such as calcium salt, amine salts, and other complexes that form other complexes are excluded because they hardly exhibit the effects of the present invention. Is done.
- R 4 is a linear or branched alkyl group having 1 to 32 carbon atoms, an alkylphenyl group having a linear or branched alkyl group having 1 to 32 carbon atoms, or a linear chain having 1 to 32 carbon atoms. Alternatively, it is an alkylnaphthyl group having a branched alkyl group.
- organic sulfonic acid compounds are used alone or in combination of two or more.
- the N-oxyl compound used in addition to the quinone methide compound and the organic sulfonic acid compound in the production, purification, storage, or transportation process of the aromatic vinyl compound is represented by the general formula (3), and is adjacent to the N-xyl radical. It is a sterically hindered N-year-old xyl compound having a sterically hindered substituent in contact therewith.
- R 5 is a hydrogen atom, an oxygen atom, a hydroxyl group, an alkyl group having 3 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a carboxylic acid group having 1 to 3 carbon atoms, or an amide group having 1 to 3 carbon atoms. It is.
- Alkyl groups having 1 to 3 carbon atoms include methyl, ethyl, propyl, and isopropyl groups, and alkoxy groups having 1 to 3 carbon atoms include methoxy, ethoxy, propoxy, and isopropoxy groups.
- acid amide groups and the like are formic acid, acetic acid, and propionic acid groups as the carboxylic acid group having 3 to 3 carbon atoms, and formic acid group, amide acetate group, and propionate as the amide group having 3 to 3 carbon atoms.
- the polymerization inhibitor of the present invention is a polymerization inhibitor containing two components, a quinone methide compound and an organic sulfonic acid compound, and is usually used by dissolving it in an aromatic organic solvent.
- aromatic organic solvent include benzene, toluene, xylene, and ethylbenzene, and one or more of these are used.
- concentrations of the quinone methide compound and the organic sulfonic acid compound in the polymerization inhibitor of the present invention are not uniformly determined, but may be determined as appropriate, but are generally ⁇ to 20% by weight.
- Alcohols eg, ethylene glycol, butyl glycol, etc.
- Alcohols may be added to improve the solubility and stability of the quinone methide compound.
- conventionally used polymerization inhibitors may be added.
- the compounding ratio of each component in the polymerization inhibitor containing two components of the quinone methide compound and the organic sulfonic acid compound according to the present invention depends on the type, amount, operating conditions and polymerization suppression effect of the target aromatic vinyl compound. Depending on the degree, it is not uniformly determined, but may be determined as appropriate.
- the compounding ratio of the quinone methide compound to the organic sulfonic acid compound is 95: 5 to 5:95 (weight ratio), preferably 90:10 to "! 0: 90, preferably 80: 20 to 20: 80.
- the polymerization inhibitors include a polymerization inhibition type which basically slows down the progress of the polymerization and a polymerization inhibition type which delays the time until the start of the polymerization.
- a polymerization inhibition type which basically slows down the progress of the polymerization
- a polymerization inhibition type which delays the time until the start of the polymerization.
- the quinone methide compound and the organic sulfonic acid of the present invention have a strong tendency to inhibit the polymerization, and the N-aminoxyl compound has Prohibition type.
- the polymerization inhibition type is inferior to the initial polymerization inhibition, but can suppress polymerization for a relatively long time.
- the polymerization inhibition type is excellent in the initial polymerization inhibition, but reacts with radicals in the system over time. When consumed, the polymerization-suppressing effect is substantially lost thereafter.
- the method for preparing the polymerization inhibitor of the present invention is not particularly limited, and it can be obtained by uniformly dissolving each component in an aromatic organic solvent while stirring a quinone methide compound and an organic sulfonic acid compound.
- the polymerization inhibitor of the present invention by using a quinone methide compound and an organic sulfonic acid together, suppresses radical generation by an organic sulfonic acid compound, suppresses chain elongation by radicals by a quinone methide compound, and suppresses radical polymerization.
- a synergistic effect is obtained by the combination. In particular, the synergistic effect tends to increase as the temperature increases.
- the inhibitor type is preferably selected, but depending on the process conditions, it is more effective to add a polymerization inhibition function. Use It is advisable to further add an N-oxyl compound which is usable and is a polymer-inhibited type.
- the quinone methide compound and the organic sulfonic acid compound, or the quinone methide compound, the organic sulfonic acid compound and the N-hydroxyxyl compound are added to the production, purification, storage or transportation step of the aromatic vinyl compound. Then, this is a method for suppressing the polymerization of the aromatic vinyl compound, and a method for preventing contamination due to the polymerization of the aromatic vinyl compound.
- the amount of the polymerization inhibitor of the present invention to be added to the production, purification, storage or transportation process of the aromatic vinyl compound is not uniformly determined, but is determined in view of the target process conditions and requirements.
- the quinone methide compound is usually 10 to 2000 ppm, preferably 100 to 1 OOO ppm with respect to the aromatic vinyl compound, and the organic sulfonic acid compound is usually aromatic. 10 to 1 OOO p pm, preferably 50 to 500 p pm for aromatic vinyl compounds, and 0.5 to 1 000 p pm, usually for aromatic vinyl compounds, Is 5-1 OO ppm.
- the appropriate range is a guide amount, and if it is less than this range, the effect of the present invention may not be remarkable.
- the quinone methide compound and the N-hydroxy compound are more than the above ranges, the polymerization inhibitory effect becomes higher, but the increase in the amount of addition increases the polymerization inhibitory effect little and lowers cost performance. There is. If the organic sulfonic acid compound is added in an amount larger than the above range, not only is it economically disadvantageous, but it may also induce ionic polymerization of the aromatic vinyl compound.
- the polymerization inhibition method of the present invention includes a method of adding a polymerization inhibitor containing two components of a quinone methide compound and an organic sulfonic acid compound by a pump, and a method of adding a polymerization inhibitor containing two components of a quinone methide compound and an organic sulfonic acid compound. While adding the N-hydroxy compound separately to cause the three components to act at the problematic locations, adding the quinone methide compound, the organic sulfonic acid compound and the N-oxyl compound simultaneously, and adding the quinone methide compound and the organic sulfone.
- a method in which two components act at a problematic site by adding an acid compound individually, and three components act at a problematic site by separately adding a quinone methide compound, an organic sulfonic acid compound, and an N-hydroxyxyl compound There are methods, etc., which may be selected in various ways from the operational status of the process, the degree of the problem, the degree of the request for improvement of the problem, and the economic viewpoint. For example, a combination of a quinone methide compound and a sulfonic acid compound is good for preventing polymerization over a long period of time, and a combination of adding an N-oxyl compound for completely preventing the initial polymerization. There is.
- the method for adding the polymerization inhibitor of the present invention is not particularly limited, it is usually injected and added using a chemical injection pump.
- the addition site of the polymerization inhibitor of the present invention is added to an upstream process of a site where the aromatic vinyl compound is polymerized and becomes a problem as fouling.
- styrene is generally produced by the dehydrogenation of ethylbenzene, and the resulting styrene and unreacted ethylbenzene are continuously separated by distillation. Good.
- a method such as adding all at once to a specific location or adding in several locations is selected as appropriate
- a quinone methide compound (A-2) was obtained in the same manner as for quinone methide (A-1), using 1.51 g of 4-nitrobenzene aldehyde instead of benzaldehyde.
- Pentadecylbenzenesulfonic acid (“Ticacure AC—330” (trade name, manufactured by Tika Corporation)) (N—Xyl compound)
- the polymerization inhibitor (Examples N0.1 to N0.7) containing two components of the quinone methide compound and the organic sulfonic acid compound of the present invention is a styrene distilling / purifying agent.
- DNBP 2,4-dinitro-6-sec-butylphenol
- the quinone methide compound alone higher than Comparative Example N 0.2
- the organic sulfonic acid compound and the N-year-old xyl compound of the present invention Examples No. 8 to No. 15.
- N-oxyl compound extends the initial polymerization inhibition period of polymerization inhibitors containing two components, quinone methide compound and organic sulfonic acid compound (Examples No. 1 to No. 7), It was found that the repolymerization was suppressed.
- the polymerization inhibitor and the polymerization inhibition method of the present invention in the step of producing, purifying, storing, or transporting an aromatic pinyl compound, it is possible to suppress the polymerization for a long time, not to mention the initial polymerization. This means that the generation of dirt (fouling) in these processes can be efficiently suppressed and the process can be stably operated for a long period of time, making it possible to greatly contribute to stabilization of the process and improvement of safe operation. It is.
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Abstract
Description
Claims
Priority Applications (3)
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JP2005503709A JP4790414B2 (ja) | 2003-03-17 | 2004-03-17 | 芳香族ビニル化合物の重合抑制剤および重合抑制方法 |
EP04721320A EP1604965A4 (en) | 2003-03-17 | 2004-03-17 | POLYMERIZATION INHIBITOR FOR AROMATIC VINYL COMPOUNDS AND METHOD FOR INHIBITING THE POLYMERIZATION OF THE COMPOUNDS |
US10/547,163 US20060163539A1 (en) | 2003-03-17 | 2004-03-17 | Polymerization inhibitor for aromatic vinyl compounds and method for inhibiting the polymerization of the compounds |
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US (1) | US20060163539A1 (ja) |
EP (1) | EP1604965A4 (ja) |
JP (1) | JP4790414B2 (ja) |
KR (1) | KR20050107811A (ja) |
CN (1) | CN100522902C (ja) |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4654450A (en) * | 1986-02-24 | 1987-03-31 | Atlantic Richfield Company | Inhibiting polymerization of vinyl aromatic monomers |
JPH09165408A (ja) * | 1995-04-14 | 1997-06-24 | Ciba Geigy Ag | 7−アリールキノンメチドを用いる不飽和モノマーの抑制 |
WO1999048996A1 (en) * | 1998-03-25 | 1999-09-30 | Betzdearborn Inc. | Compositions and methods for inhibiting vinyl aromatic monomer polymerization |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3673292B2 (ja) * | 1994-07-27 | 2005-07-20 | 伯東株式会社 | ビニル化合物を扱う工程でのファウリング防止方法 |
-
2004
- 2004-03-17 US US10/547,163 patent/US20060163539A1/en not_active Abandoned
- 2004-03-17 CN CNB2004800071124A patent/CN100522902C/zh not_active Expired - Lifetime
- 2004-03-17 KR KR1020057017419A patent/KR20050107811A/ko not_active Application Discontinuation
- 2004-03-17 JP JP2005503709A patent/JP4790414B2/ja not_active Expired - Fee Related
- 2004-03-17 EP EP04721320A patent/EP1604965A4/en not_active Withdrawn
- 2004-03-17 WO PCT/JP2004/003540 patent/WO2004083156A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4654450A (en) * | 1986-02-24 | 1987-03-31 | Atlantic Richfield Company | Inhibiting polymerization of vinyl aromatic monomers |
JPH09165408A (ja) * | 1995-04-14 | 1997-06-24 | Ciba Geigy Ag | 7−アリールキノンメチドを用いる不飽和モノマーの抑制 |
WO1999048996A1 (en) * | 1998-03-25 | 1999-09-30 | Betzdearborn Inc. | Compositions and methods for inhibiting vinyl aromatic monomer polymerization |
Non-Patent Citations (1)
Title |
---|
See also references of EP1604965A4 * |
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JP7247630B2 (ja) | 2019-02-13 | 2023-03-29 | 栗田工業株式会社 | 不飽和芳香族単量体の重合を抑制する方法 |
CN113307719A (zh) * | 2021-06-11 | 2021-08-27 | 唐山旭阳化工有限公司 | 一种复配型阻聚剂及其在苯乙烯精馏工艺中的应用 |
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Also Published As
Publication number | Publication date |
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CN100522902C (zh) | 2009-08-05 |
US20060163539A1 (en) | 2006-07-27 |
JP4790414B2 (ja) | 2011-10-12 |
KR20050107811A (ko) | 2005-11-15 |
CN1761638A (zh) | 2006-04-19 |
EP1604965A1 (en) | 2005-12-14 |
JPWO2004083156A1 (ja) | 2006-06-22 |
EP1604965A4 (en) | 2010-01-06 |
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