PL82612B1 - - Google Patents
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- Publication number
- PL82612B1 PL82612B1 PL15638772A PL15638772A PL82612B1 PL 82612 B1 PL82612 B1 PL 82612B1 PL 15638772 A PL15638772 A PL 15638772A PL 15638772 A PL15638772 A PL 15638772A PL 82612 B1 PL82612 B1 PL 82612B1
- Authority
- PL
- Poland
- Prior art keywords
- oxidation
- acid
- acetic acid
- acetate
- temperature
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 189
- 230000003647 oxidation Effects 0.000 claims description 107
- 238000007254 oxidation reaction Methods 0.000 claims description 107
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 99
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 69
- 238000000034 method Methods 0.000 claims description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 34
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 claims description 34
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 29
- -1 methyl toluic acid esters Chemical class 0.000 claims description 27
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Substances [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 26
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- 229910052783 alkali metal Inorganic materials 0.000 claims description 20
- 229910017052 cobalt Inorganic materials 0.000 claims description 18
- 239000010941 cobalt Substances 0.000 claims description 18
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 17
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 16
- 239000001632 sodium acetate Substances 0.000 claims description 15
- 235000017281 sodium acetate Nutrition 0.000 claims description 15
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 14
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 14
- 235000011056 potassium acetate Nutrition 0.000 claims description 14
- 229910052794 bromium Inorganic materials 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 8
- 229910052700 potassium Inorganic materials 0.000 claims description 8
- 239000007791 liquid phase Substances 0.000 claims description 6
- 150000004702 methyl esters Chemical class 0.000 claims description 6
- 239000011541 reaction mixture Substances 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 2
- 229960000583 acetic acid Drugs 0.000 description 68
- 238000006243 chemical reaction Methods 0.000 description 30
- 239000012362 glacial acetic acid Substances 0.000 description 30
- 238000005406 washing Methods 0.000 description 28
- 239000000047 product Substances 0.000 description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 22
- 239000001301 oxygen Substances 0.000 description 22
- 229910052760 oxygen Inorganic materials 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 17
- 239000000243 solution Substances 0.000 description 16
- REIDAMBAPLIATC-UHFFFAOYSA-N 4-methoxycarbonylbenzoic acid Chemical compound COC(=O)C1=CC=C(C(O)=O)C=C1 REIDAMBAPLIATC-UHFFFAOYSA-N 0.000 description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 14
- 238000001816 cooling Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000706 filtrate Substances 0.000 description 10
- 238000001914 filtration Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- PLXSXOUOWRGVOZ-UHFFFAOYSA-L dibromocobalt;hexahydrate Chemical compound O.O.O.O.O.O.Br[Co]Br PLXSXOUOWRGVOZ-UHFFFAOYSA-L 0.000 description 9
- 239000012065 filter cake Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 8
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 8
- BZRRQSJJPUGBAA-UHFFFAOYSA-L cobalt(ii) bromide Chemical compound Br[Co]Br BZRRQSJJPUGBAA-UHFFFAOYSA-L 0.000 description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 7
- 239000011591 potassium Substances 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- QSSJZLPUHJDYKF-UHFFFAOYSA-N methyl 4-methylbenzoate Chemical compound COC(=O)C1=CC=C(C)C=C1 QSSJZLPUHJDYKF-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 150000001868 cobalt Chemical class 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000006386 neutralization reaction Methods 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000007127 saponification reaction Methods 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000004246 zinc acetate Substances 0.000 description 4
- WMZNGTSLFSJHMZ-UHFFFAOYSA-N 3-methoxycarbonylbenzoic acid Chemical compound COC(=O)C1=CC=CC(C(O)=O)=C1 WMZNGTSLFSJHMZ-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- WRYNUJYAXVDTCB-UHFFFAOYSA-M acetyloxymercury Chemical compound CC(=O)O[Hg] WRYNUJYAXVDTCB-UHFFFAOYSA-M 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 3
- 150000003503 terephthalic acid derivatives Chemical class 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 2
- 239000001639 calcium acetate Substances 0.000 description 2
- 235000011092 calcium acetate Nutrition 0.000 description 2
- 229960005147 calcium acetate Drugs 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229940011182 cobalt acetate Drugs 0.000 description 2
- ZBYYWKJVSFHYJL-UHFFFAOYSA-L cobalt(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Co+2].CC([O-])=O.CC([O-])=O ZBYYWKJVSFHYJL-UHFFFAOYSA-L 0.000 description 2
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002531 isophthalic acids Chemical class 0.000 description 2
- 229940046892 lead acetate Drugs 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OPVAJFQBSDUNQA-UHFFFAOYSA-N 3,4-dimethylbenzoic acid Chemical compound CC1=CC=C(C(O)=O)C=C1C OPVAJFQBSDUNQA-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 241000269799 Perca fluviatilis Species 0.000 description 1
- PMHCSCQXRLVFNR-UHFFFAOYSA-N [Br].[Co] Chemical compound [Br].[Co] PMHCSCQXRLVFNR-UHFFFAOYSA-N 0.000 description 1
- DJTZIDSZSYWGKR-UHFFFAOYSA-N acetic acid tetrahydrate Chemical compound O.O.O.O.CC(O)=O DJTZIDSZSYWGKR-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001347 alkyl bromides Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- GAYAMOAYBXKUII-UHFFFAOYSA-L cobalt(2+);dibenzoate Chemical compound [Co+2].[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1 GAYAMOAYBXKUII-UHFFFAOYSA-L 0.000 description 1
- AMFIJXSMYBKJQV-UHFFFAOYSA-L cobalt(2+);octadecanoate Chemical compound [Co+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AMFIJXSMYBKJQV-UHFFFAOYSA-L 0.000 description 1
- FJDJVBXSSLDNJB-LNTINUHCSA-N cobalt;(z)-4-hydroxypent-3-en-2-one Chemical compound [Co].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FJDJVBXSSLDNJB-LNTINUHCSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- RJYMRRJVDRJMJW-UHFFFAOYSA-L dibromomanganese Chemical compound Br[Mn]Br RJYMRRJVDRJMJW-UHFFFAOYSA-L 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 235000019233 fast yellow AB Nutrition 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 150000004687 hexahydrates Chemical class 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- CPXCDEMFNPKOEF-UHFFFAOYSA-N methyl 3-methylbenzoate Chemical compound COC(=O)C1=CC=CC(C)=C1 CPXCDEMFNPKOEF-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003022 phthalic acids Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011175 product filtration Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000011091 sodium acetates Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 150000003504 terephthalic acids Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712132909 DE2132909A1 (de) | 1971-07-02 | 1971-07-02 | Verfahren zur herstellung von isophthalsaeure durch oxydation von m-xylol |
| DE19712132908 DE2132908A1 (de) | 1971-07-02 | 1971-07-02 | Verfahren zur herstellung von phthalsaeuremonomethylestern durch oxydation von toluylsaeuremethylestern |
| DE19712132910 DE2132910A1 (de) | 1971-07-02 | 1971-07-02 | Verfahren zur herstellung von terephthalsaeure durch oxydation von p-xylol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL82612B1 true PL82612B1 (enrdf_load_stackoverflow) | 1975-10-31 |
Family
ID=27183529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL15638772A PL82612B1 (enrdf_load_stackoverflow) | 1971-07-02 | 1972-06-30 |
Country Status (14)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2104512B1 (es) * | 1995-09-21 | 1998-07-01 | Interquisa | Procedimiento industrial para la fabricacion de acidos carboxilicos aromaticos. |
| US7550627B2 (en) | 2005-03-08 | 2009-06-23 | Eastman Chemical Company | Processes for producing aromatic dicarboxylic acids |
| EP2522426B1 (en) | 2011-05-12 | 2014-02-12 | King Saud University | Method for preparing carboxylic acids |
-
1972
- 1972-05-31 DD DD16331972A patent/DD96700A5/xx unknown
- 1972-06-12 NL NL7207977A patent/NL7207977A/xx unknown
- 1972-06-16 CS CS422772A patent/CS168593B2/cs unknown
- 1972-06-21 AU AU43701/72A patent/AU462394B2/en not_active Expired
- 1972-06-23 ES ES72404182A patent/ES404182A1/es not_active Expired
- 1972-06-27 CH CH962272A patent/CH572885A5/xx not_active IP Right Cessation
- 1972-06-29 GB GB3062272A patent/GB1389478A/en not_active Expired
- 1972-06-29 BE BE785615A patent/BE785615A/xx unknown
- 1972-06-30 CA CA146,212A patent/CA979921A/en not_active Expired
- 1972-06-30 PL PL15638772A patent/PL82612B1/pl unknown
- 1972-06-30 IT IT5125872A patent/IT965867B/it active
- 1972-06-30 AR AR24286872A patent/AR192460A1/es active
- 1972-06-30 FR FR7223894A patent/FR2144722B1/fr not_active Expired
- 1972-07-01 RO RO7145772A patent/RO59928A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU462394B2 (en) | 1975-06-26 |
| AU4370172A (en) | 1974-01-03 |
| RO59928A (enrdf_load_stackoverflow) | 1976-11-15 |
| FR2144722B1 (enrdf_load_stackoverflow) | 1976-08-06 |
| ES404182A1 (es) | 1975-06-01 |
| FR2144722A1 (enrdf_load_stackoverflow) | 1973-02-16 |
| CA979921A (en) | 1975-12-16 |
| DD96700A5 (enrdf_load_stackoverflow) | 1973-04-05 |
| AR192460A1 (es) | 1973-02-21 |
| IT965867B (it) | 1974-02-11 |
| CS168593B2 (enrdf_load_stackoverflow) | 1976-06-29 |
| NL7207977A (enrdf_load_stackoverflow) | 1973-01-04 |
| BE785615A (fr) | 1972-10-16 |
| GB1389478A (en) | 1975-04-03 |
| CH572885A5 (enrdf_load_stackoverflow) | 1976-02-27 |
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