IE45504B1 - Process for the preparation of iso- or terephthalic acid - Google Patents
Process for the preparation of iso- or terephthalic acidInfo
- Publication number
- IE45504B1 IE45504B1 IE1543/77A IE154377A IE45504B1 IE 45504 B1 IE45504 B1 IE 45504B1 IE 1543/77 A IE1543/77 A IE 1543/77A IE 154377 A IE154377 A IE 154377A IE 45504 B1 IE45504 B1 IE 45504B1
- Authority
- IE
- Ireland
- Prior art keywords
- xylene
- oxidation
- water
- temperature
- solvent system
- Prior art date
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title claims abstract description 50
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 43
- 230000008569 process Effects 0.000 title claims description 39
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 139
- 230000003647 oxidation Effects 0.000 claims abstract description 136
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims abstract description 111
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000002904 solvent Substances 0.000 claims abstract description 103
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000005711 Benzoic acid Substances 0.000 claims abstract description 55
- 235000010233 benzoic acid Nutrition 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000008096 xylene Substances 0.000 claims abstract description 35
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical compound CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 claims abstract description 28
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 27
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 27
- 239000003054 catalyst Substances 0.000 claims abstract description 26
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 19
- 150000003624 transition metals Chemical class 0.000 claims abstract description 19
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 16
- 239000007791 liquid phase Substances 0.000 claims abstract description 14
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 5
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 32
- 239000011572 manganese Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 20
- 239000006227 byproduct Substances 0.000 claims description 18
- 229910052748 manganese Inorganic materials 0.000 claims description 18
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 229910017052 cobalt Inorganic materials 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- 229910052684 Cerium Inorganic materials 0.000 claims description 7
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical group [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 claims 1
- QNHCWLYFWBZVOM-UHFFFAOYSA-N benzoic acid;hydrate Chemical compound O.OC(=O)C1=CC=CC=C1 QNHCWLYFWBZVOM-UHFFFAOYSA-N 0.000 abstract description 11
- 150000003738 xylenes Chemical class 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 63
- 238000006243 chemical reaction Methods 0.000 description 43
- 229940074411 xylene Drugs 0.000 description 27
- 239000000047 product Substances 0.000 description 20
- 238000010992 reflux Methods 0.000 description 18
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- 239000012530 fluid Substances 0.000 description 13
- 230000000977 initiatory effect Effects 0.000 description 12
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000007810 chemical reaction solvent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 150000001649 bromium compounds Chemical class 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 230000036284 oxygen consumption Effects 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- GWHJZXXIDMPWGX-UHFFFAOYSA-N 1,2,4-trimethylbenzene Chemical compound CC1=CC=C(C)C(C)=C1 GWHJZXXIDMPWGX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 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 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 2
- -1 aromatic carboxylic acids Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- QARVLSVVCXYDNA-UHFFFAOYSA-N bromobenzene Chemical compound BrC1=CC=CC=C1 QARVLSVVCXYDNA-UHFFFAOYSA-N 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 150000003628 tricarboxylic acids Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 1
- RVHSTXJKKZWWDQ-UHFFFAOYSA-N 1,1,1,2-tetrabromoethane Chemical compound BrCC(Br)(Br)Br RVHSTXJKKZWWDQ-UHFFFAOYSA-N 0.000 description 1
- UWTUEMKLYAGTNQ-UHFFFAOYSA-N 1,2-dibromoethene Chemical group BrC=CBr UWTUEMKLYAGTNQ-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 101100006941 Caenorhabditis elegans sex-1 gene Proteins 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Chemical class CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- YHGREDQDBYVEOS-UHFFFAOYSA-N [acetyloxy-[2-(diacetyloxyamino)ethyl]amino] acetate Chemical class CC(=O)ON(OC(C)=O)CCN(OC(C)=O)OC(C)=O YHGREDQDBYVEOS-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- AGEZXYOZHKGVCM-UHFFFAOYSA-N benzyl bromide Chemical compound BrCC1=CC=CC=C1 AGEZXYOZHKGVCM-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 150000004648 butanoic acid derivatives Chemical class 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229940082328 manganese acetate tetrahydrate Drugs 0.000 description 1
- CESXSDZNZGSWSP-UHFFFAOYSA-L manganese(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Mn+2].CC([O-])=O.CC([O-])=O CESXSDZNZGSWSP-UHFFFAOYSA-L 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 125000005609 naphthenate group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000005502 phase rule Effects 0.000 description 1
- OCATYIAKPYKMPG-UHFFFAOYSA-M potassium bromate Chemical class [K+].[O-]Br(=O)=O OCATYIAKPYKMPG-UHFFFAOYSA-M 0.000 description 1
- 235000019396 potassium bromate Nutrition 0.000 description 1
- 238000011027 product recovery Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Inorganic materials [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- FHYUCVWDMABHHH-UHFFFAOYSA-N toluene;1,2-xylene Chemical compound CC1=CC=CC=C1.CC1=CC=CC=C1C FHYUCVWDMABHHH-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 238000013022 venting Methods 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
-
- 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
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70835876A | 1976-07-26 | 1976-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE45504L IE45504L (en) | 1978-01-26 |
| IE45504B1 true IE45504B1 (en) | 1982-09-08 |
Family
ID=24845486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1543/77A IE45504B1 (en) | 1976-07-26 | 1977-07-25 | Process for the preparation of iso- or terephthalic acid |
Country Status (20)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2893860B2 (ja) * | 1990-05-17 | 1999-05-24 | 三菱瓦斯化学株式会社 | 高純度イソフタル酸の製造法 |
| GB9210832D0 (en) * | 1992-05-21 | 1992-07-08 | Ici Plc | Bromine catalysed oxidation process |
| EP0596395B1 (de) * | 1992-11-04 | 2000-06-28 | Clariant GmbH | Verfahren zur Herstellung fluorierter Benzile |
| ES2104512B1 (es) * | 1995-09-21 | 1998-07-01 | Interquisa | Procedimiento industrial para la fabricacion de acidos carboxilicos aromaticos. |
| PL389529A1 (pl) | 2009-11-10 | 2011-05-23 | Fabryka Maszyn FAMUR Spółka Akcyjna | Sposób zamocowania ramienia do kadłuba w kombajnie górniczym ścianowym |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6413067A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1963-11-14 | 1965-05-17 |
-
1977
- 1977-06-27 AU AU26500/77A patent/AU510097B2/en not_active Expired
- 1977-06-29 NL NL7707202A patent/NL7707202A/xx not_active Application Discontinuation
- 1977-06-30 MX MX169677A patent/MX145448A/es unknown
- 1977-07-04 IT IT50113/77A patent/IT1079740B/it active
- 1977-07-15 CA CA282,898A patent/CA1079296A/en not_active Expired
- 1977-07-15 DE DE19772732149 patent/DE2732149A1/de not_active Ceased
- 1977-07-19 GB GB30269/77A patent/GB1577544A/en not_active Expired
- 1977-07-22 BE BE179575A patent/BE857068A/xx not_active IP Right Cessation
- 1977-07-25 IE IE1543/77A patent/IE45504B1/en unknown
- 1977-07-25 FR FR7722785A patent/FR2359809A1/fr active Granted
- 1977-07-25 BR BR7704878A patent/BR7704878A/pt unknown
- 1977-07-25 LU LU77836A patent/LU77836A1/xx unknown
- 1977-07-25 DK DK334777A patent/DK334777A/da not_active Application Discontinuation
- 1977-07-25 AR AR268551A patent/AR211428Q/es unknown
- 1977-07-25 DD DD7700200266A patent/DD132428A5/xx unknown
- 1977-07-26 ES ES461021A patent/ES461021A1/es not_active Expired
- 1977-07-26 PL PL19985877A patent/PL199858A1/xx unknown
- 1977-07-26 CS CS774957A patent/CS197297B2/cs unknown
- 1977-07-26 JP JP8887877A patent/JPS5315334A/ja active Pending
- 1977-07-26 SU SU772505759A patent/SU793378A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2359809A1 (fr) | 1978-02-24 |
| BE857068A (fr) | 1978-01-23 |
| SU793378A3 (ru) | 1980-12-30 |
| AU510097B2 (en) | 1980-06-05 |
| GB1577544A (en) | 1980-10-22 |
| ES461021A1 (es) | 1978-05-16 |
| AU2650077A (en) | 1979-01-04 |
| CS197297B2 (en) | 1980-04-30 |
| IE45504L (en) | 1978-01-26 |
| DD132428A5 (de) | 1978-09-27 |
| PL199858A1 (pl) | 1979-01-02 |
| IT1079740B (it) | 1985-05-13 |
| LU77836A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-02-02 |
| JPS5315334A (en) | 1978-02-13 |
| FR2359809B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-07-11 |
| MX145448A (es) | 1982-02-17 |
| DK334777A (da) | 1978-01-27 |
| AR211428Q (es) | 1977-12-15 |
| NL7707202A (nl) | 1978-01-30 |
| CA1079296A (en) | 1980-06-10 |
| BR7704878A (pt) | 1979-07-03 |
| DE2732149A1 (de) | 1978-02-02 |
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