JP5193046B2 - アルドール化方法からの廃水の処理方法 - Google Patents
アルドール化方法からの廃水の処理方法 Download PDFInfo
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- JP5193046B2 JP5193046B2 JP2008532750A JP2008532750A JP5193046B2 JP 5193046 B2 JP5193046 B2 JP 5193046B2 JP 2008532750 A JP2008532750 A JP 2008532750A JP 2008532750 A JP2008532750 A JP 2008532750A JP 5193046 B2 JP5193046 B2 JP 5193046B2
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- 238000000034 method Methods 0.000 title claims abstract description 127
- 238000004065 wastewater treatment Methods 0.000 title description 2
- 239000002351 wastewater Substances 0.000 claims abstract description 117
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000004821 distillation Methods 0.000 claims abstract description 33
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 26
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 25
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N pentanal Chemical compound CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 claims abstract description 25
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- PYLMCYQHBRSDND-UHFFFAOYSA-N 2-ethyl-2-hexenal Chemical compound CCCC=C(CC)C=O PYLMCYQHBRSDND-UHFFFAOYSA-N 0.000 claims abstract description 12
- YLQLIQIAXYRMDL-UHFFFAOYSA-N propylheptyl alcohol Chemical compound CCCCCC(CO)CCC YLQLIQIAXYRMDL-UHFFFAOYSA-N 0.000 claims abstract description 12
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 claims abstract description 11
- YGHRJJRRZDOVPD-UHFFFAOYSA-N 3-methylbutanal Chemical compound CC(C)CC=O YGHRJJRRZDOVPD-UHFFFAOYSA-N 0.000 claims abstract description 10
- GADNZGQWPNTMCH-UHFFFAOYSA-N 2-propylhept-2-enal Chemical compound CCCCC=C(C=O)CCC GADNZGQWPNTMCH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims description 49
- 238000005984 hydrogenation reaction Methods 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 25
- 238000009835 boiling Methods 0.000 claims description 23
- 239000002957 persistent organic pollutant Substances 0.000 claims description 23
- 239000000126 substance Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 238000005191 phase separation Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 4
- 150000001299 aldehydes Chemical class 0.000 abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract 3
- 239000008346 aqueous phase Substances 0.000 description 19
- 239000012071 phase Substances 0.000 description 19
- 239000012074 organic phase Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000005882 aldol condensation reaction Methods 0.000 description 13
- 238000009833 condensation Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 12
- 238000002156 mixing Methods 0.000 description 11
- 239000000047 product Substances 0.000 description 9
- 238000000746 purification Methods 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000000284 extract Substances 0.000 description 7
- 150000001728 carbonyl compounds Chemical class 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 239000007859 condensation product Substances 0.000 description 5
- 230000020477 pH reduction Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- HSJKGGMUJITCBW-UHFFFAOYSA-N 3-hydroxybutanal Chemical compound CC(O)CC=O HSJKGGMUJITCBW-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- -1 2-ethylhexenal- and 2-hexylhexanol Chemical compound 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- LGYNIFWIKSEESD-UHFFFAOYSA-N 2-ethylhexanal Chemical compound CCCCC(CC)C=O LGYNIFWIKSEESD-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000006668 aldol addition reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- NUMQCACRALPSHD-UHFFFAOYSA-N tert-butyl ethyl ether Chemical compound CCOC(C)(C)C NUMQCACRALPSHD-UHFFFAOYSA-N 0.000 description 2
- MMELVRLTDGKXGU-BQYQJAHWSA-N (e)-2-ethylhex-1-en-1-ol Chemical compound CCCC\C(CC)=C\O MMELVRLTDGKXGU-BQYQJAHWSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- 150000000368 2-ethylhexanals Chemical class 0.000 description 1
- ZVIXJWDKOACIQD-UHFFFAOYSA-N 2-propylhept-1-en-1-ol Chemical compound CCCCCC(=CO)CCC ZVIXJWDKOACIQD-UHFFFAOYSA-N 0.000 description 1
- JJMOMMLADQPZNY-UHFFFAOYSA-N 3-hydroxy-2,2-dimethylpropanal Chemical compound OCC(C)(C)C=O JJMOMMLADQPZNY-UHFFFAOYSA-N 0.000 description 1
- BPGHXAMBIHMHSX-UHFFFAOYSA-N C(C(C)C)=O.C=CCCCCC Chemical compound C(C(C)C)=O.C=CCCCCC BPGHXAMBIHMHSX-UHFFFAOYSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- DCDMBHDJESPGBQ-UHFFFAOYSA-N O.C(CC)C(CO)CCCCC Chemical compound O.C(CC)C(CO)CCCCC DCDMBHDJESPGBQ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002373 hemiacetals Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000006053 organic reaction Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
- C07C45/74—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups combined with dehydration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/80—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/908—Organic
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Physical Water Treatments (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Extraction Or Liquid Replacement (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Activated Sludge Processes (AREA)
- Processing Of Solid Wastes (AREA)
Description
本発明は、アルドール化方法からの水溶性の有機汚染物質で負荷された廃水を、有機液体を用いた、pH値0〜6に調整された前記アルドール化プロセス廃水の一工程の又は多工程の抽出により処理する方法に関する。
−抽出剤として、有用生成物、例えば2−エチルヘキサノールは使用されないが、例えば、2−エチルヘキサノール、n−ブタノール、イソブタノール、ペンタノール及び/又は2−プロピルヘプタノールの蒸留からの、易沸性の有機前駆体が使用され、これらは通常はどのみち焼却される;
−有機廃水抽出物からの抽出剤の回収は従って経済的な理由から必要でない;
−抽出された廃水がこの中にまだなお含有される抽出剤から容易にストリッピングにより取り除かれ、かつこのようにしてこのCSB値は更に減少される、その際、
−このストリッピングの際に得られる有機易沸物質混合物は、再度アルドール化プロセス廃水のために抽出剤として用いられる。
−アルドール縮合の際に使用されるカルボニル化合物(アルデヒド、ケトン)の異性体、特に分枝したアルデヒド;
−使用されるカルボニル化合物の還元された化合物、特に直鎖の及び分枝したアルコール;
−ラクトンであって、使用されるアルデヒド又は形成されるアルドール縮合生成物に相応する数の炭素原子を有するラクトン;
−アルコールであって、アルドール縮合において使用されるカルボニル化合物と比較してより多い炭素原子を有するアルコール、並びに、使用されるカルボニル化合物と比較して二倍の数の炭素原子を有するアルコール;
−塩、特にアルカリ金属塩であって、使用されるアルデヒド及び/又はアルドール縮合生成物に相応する数の炭素原子を有するカルボン酸の塩、並びに、前記ラクトンのアルカリ鹸化により形成される、相応するヒドロキシカルボン酸の塩;
−形成されるアルドール縮合生成物に相応する数の炭素原子を有する飽和したアルデヒド;
−前述のカルボン酸とアルコールとからのカルボン酸エステル;
−前述のカルボニル化合物と前述のアルコールとのアセタール及びヘミアセタール。
分析:
廃水中の全体的な有機性−結合した炭素("TOC" = total organic carbon)を以下の実施例の際に1997年からのEN 1484 - H3に応じて測定した。この化学的酸素要求("CSB")を、DIN 38409,44部(Deutschen Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung, 1992年5月の方法H44)に応じて測定した。
CSB値26800mg/l(TOC=7820mg/l)を有する、2−エチルヘキセナールへのエナール化からの廃水(フィード、F、pH13.6)1500gを、濃硫酸150gを用いてpH2に調整し、引き続き雰囲気圧力で及び温度25゜で、易沸物質混合物(溶媒、S)41gと相比S:F=0.025g/gで強力に混合した。前記溶媒混合物は、それぞれおよそn−ブタノール37質量%、i−ブタノール27質量%、n−ヘプタン15質量%、i−及びn−ブチルアルデヒド8質量%又は1質量%、水7.5質量%及び他の有機副成分4.5質量%の組成を有した。この相の分離後にこの抽出手順を繰り返した。生じる抽出された廃水1488gを1012mbarでこの沸騰温度まで水蒸気蒸留にかけ、この生じる蒸気の凝縮温度はそのつど約100℃に達した。この際2相の蒸留物116gが得られた。この有機相(54g)は、ブタノール77質量%、水18質量%並びに酪酸及びブチルアルデヒドからなり、この水相(62g)は水89質料%及びブタノール10質量%並びに少ない副成分からなった。
一段式の連続的に運転するミキサー−セトラーのミキサー(V=0.001m3)中に、CSB値19600mg/l(TOC=6900mg/l)を有する、2−エチルヘキセナールへのエナール化からの廃水(フィード、F、pH13.6)24kg/hを、濃硫酸1.34kg/hを用いてpH2に調整し、雰囲気圧力及び40℃の温度で例1で挙げた易沸物質混合物(溶媒、S、相比S:F=0.056g/g)1.94kg/hと一緒に強力に混合した。このように生じた分散液を引き続き重力分離器(V=0.002m3)中で連続的に2つの明澄な相に分離した。
Claims (7)
- アルドール化方法からの水溶性の及び/又は分散された有機汚染物質で負荷された廃水を、有機液体を用いて一工程又は多工程の抽出により処理する方法において、
前記廃水が2−エチルヘキセナール又は2−プロピルへプテナールの製造からのpH値0〜6に調整されたアルドール化プロセス廃水であって、
酸性化されたアルドール化プロセス廃水又は酸性化及び抽出されたアルドール化プロセス廃水のストリッピング装置中でのストリッピング、このストリッピングされた化合物の凝縮、及びこの凝縮物の相分離により得られる有機液体を、酸性化されたアルドール化プロセス廃水からの有機汚染物質の抽出のための抽出剤として使用し、
このストリッピング装置から、この抽出に供給されたアルドール化プロセス廃水と比較してより少ない有機汚染物質での負荷を有する廃水を取り出す
ことを特徴とする方法。 - 酸性化されたアルドール化プロセス廃水を多工程抽出において抽出し、その際抽出剤を個々の抽出工程の順番に対して向流に導入することを特徴とする、請求項1記載の方法。
- アルドール化方法に由来する廃水が2−エチルヘキセナールの製造に由来することを特徴とする、請求項1又は2記載の方法。
- アルドール化プロセス廃水の抽出のための有機液体として更に、粗n−ブタノール、粗イソブタノール及び/又は粗2−エチルヘキサノールの蒸留からの有機易沸物質搬出物が使用されることを特徴とする、請求項3記載の方法。
- アルドール化方法に由来する廃水が2−プロピルヘプテナールの製造に由来することを特徴とする、請求項1又は2記載の方法。
- アルドール化プロセス廃水の抽出のための有機液体として更に、粗n−ペンタノール、n−ペンタノール及び異性体のペンタノールからなる粗混合物及び/又は粗2−プロピルヘプタノールの蒸留からの有機易沸物質搬出物が使用されることを特徴とする、請求項5記載の方法。
- アルドール化方法からの水溶性の及び/又は分散された有機汚染物質で負荷された廃水を、有機液体を用いて一工程又は多工程の抽出により処理する方法において、前記廃水がpH値0〜6に調整された前記アルドール化プロセス廃水であって、有機液体として、n−ブチルアルデヒドの水素化後に得られる粗n−ブタノールの蒸留からの有機易沸物質搬出物、イソブチルアルデヒドの水素化後に得られる粗イソブタノールの蒸留からの有機易沸物質搬出物、n−バレルアルデヒドの水素化後に得られる粗n−ペンタノールの蒸留からの有機易沸物質搬出物、n−バレルアルデヒド/イソバレルアルデヒド混合物の水素化後に得られる粗n−/イソペンタノール混合物の蒸留からの有機易沸物質搬出物、2−エチルヘキセナールの水素化後に得られる粗2−エチルヘキサノールの蒸留からの有機易沸物質搬出物及び/又は2−プロピルへプテナールの水素化後に得られる粗2−プロピルヘプタノールの蒸留からの有機易沸物質搬出物を、この酸性化されたアルドール化プロセス廃水からの有機汚染物質の抽出のために使用し、この酸性化及び抽出されたアルドール化プロセス廃水からストリッピング装置中で易揮発性有機汚染物質がストリッピングされ、かつこのストリッピング装置から、この抽出に供給されたアルドール化プロセス廃水と比較してより少ない有機汚染物質での負荷を有する廃水を取り出すことを特徴とする方法。
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US8696871B2 (en) * | 2009-06-02 | 2014-04-15 | Uop Llc | Apparatus for removing a contaminant from a solvent separation process |
EP2512993B1 (de) * | 2009-12-16 | 2013-11-27 | Basf Se | VERFAHREN ZUR AUFARBEITUNG VON NOx-HALTIGEN ABGASEN AUS ABWASSERSTRÖMEN VON NITRIERANLAGEN |
EP2690071A1 (en) | 2012-07-24 | 2014-01-29 | Saudi Basic Industries Corporation | Method for treating alkaline wastewater |
DE102012215903A1 (de) * | 2012-09-07 | 2014-03-13 | Evonik Industries Ag | Verfahren zur Behandlung eines Abwasserstroms, der bei der Aufarbeitung eines Triacetonamin-haltigen Reaktionsgemisches entsteht |
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RU2615422C1 (ru) * | 2016-03-30 | 2017-04-04 | Общество с ограниченной ответственностью "Интерхим-Групп" | Способ переработки солесодержащих сточных вод производства 2-этилгексанола и 2-этилгексановой кислоты, технологический участок для его осуществления |
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