DE2151546B2 - Verfahren zum Nutzbarmachen der bei der Herstellung von C tief 1 - und/ oder C tief 2 -Chlorkohlenwasserstoffen anfallenden schweren Rückstände - Google Patents
Verfahren zum Nutzbarmachen der bei der Herstellung von C tief 1 - und/ oder C tief 2 -Chlorkohlenwasserstoffen anfallenden schweren RückständeInfo
- Publication number
- DE2151546B2 DE2151546B2 DE19712151546 DE2151546A DE2151546B2 DE 2151546 B2 DE2151546 B2 DE 2151546B2 DE 19712151546 DE19712151546 DE 19712151546 DE 2151546 A DE2151546 A DE 2151546A DE 2151546 B2 DE2151546 B2 DE 2151546B2
- Authority
- DE
- Germany
- Prior art keywords
- chlorine
- zone
- chlorinated
- phase chlorination
- heavy residues
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- RWNKSTSCBHKHTB-UHFFFAOYSA-N Hexachloro-1,3-butadiene Chemical compound ClC(Cl)=C(Cl)C(Cl)=C(Cl)Cl RWNKSTSCBHKHTB-UHFFFAOYSA-N 0.000 claims description 60
- 239000000460 chlorine Substances 0.000 claims description 40
- 238000005660 chlorination reaction Methods 0.000 claims description 33
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 26
- 229910052801 chlorine Inorganic materials 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 18
- 239000007791 liquid phase Substances 0.000 claims description 16
- 229950011008 tetrachloroethylene Drugs 0.000 claims description 15
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 claims description 12
- 239000012808 vapor phase Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 9
- 238000004821 distillation Methods 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 8
- -1 chlorinated benzene hydrocarbons Chemical class 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 7
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005336 cracking Methods 0.000 claims description 6
- CKAPSXZOOQJIBF-UHFFFAOYSA-N hexachlorobenzene Chemical compound ClC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl CKAPSXZOOQJIBF-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 5
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 5
- 239000012295 chemical reaction liquid Substances 0.000 claims description 5
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000001294 propane Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 239000000047 product Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 description 8
- 239000005977 Ethylene Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 6
- QPFMBZIOSGYJDE-UHFFFAOYSA-N acetylene tetrachloride Natural products ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 5
- UBOXGVDOUJQMTN-UHFFFAOYSA-N 1,1,2-trichloroethane Chemical compound ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- QQAHAGNPDBPSJP-UHFFFAOYSA-N 1,1,1,2,2,3,3,3-octachloropropane Chemical class ClC(Cl)(Cl)C(Cl)(Cl)C(Cl)(Cl)Cl QQAHAGNPDBPSJP-UHFFFAOYSA-N 0.000 description 3
- QVLAWKAXOMEXPM-UHFFFAOYSA-N 1,1,1,2-tetrachloroethane Chemical compound ClCC(Cl)(Cl)Cl QVLAWKAXOMEXPM-UHFFFAOYSA-N 0.000 description 3
- AVGQTJUPLKNPQP-UHFFFAOYSA-N 1,1,1-trichloropropane Chemical class CCC(Cl)(Cl)Cl AVGQTJUPLKNPQP-UHFFFAOYSA-N 0.000 description 3
- CAEGINLAOUNGOL-UHFFFAOYSA-N 1,1,2,3,3,4,4,4-octachlorobut-1-ene Chemical compound ClC(Cl)=C(Cl)C(Cl)(Cl)C(Cl)(Cl)Cl CAEGINLAOUNGOL-UHFFFAOYSA-N 0.000 description 3
- FBSPLEKACMFIFU-UHFFFAOYSA-N 1,1,2,3-tetrachlorobut-1-ene Chemical compound CC(Cl)C(Cl)=C(Cl)Cl FBSPLEKACMFIFU-UHFFFAOYSA-N 0.000 description 3
- RCBKHVTUYAGMLB-UHFFFAOYSA-N 1,1,2,3-tetrachlorobuta-1,3-diene Chemical compound ClC(Cl)=C(Cl)C(Cl)=C RCBKHVTUYAGMLB-UHFFFAOYSA-N 0.000 description 3
- AKQZPPKQVZVYCC-UHFFFAOYSA-N 4,4,4-trichlorobut-1-ene Chemical class ClC(Cl)(Cl)CC=C AKQZPPKQVZVYCC-UHFFFAOYSA-N 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- RKVAJLMJTGTGRC-UHFFFAOYSA-N 1,1,1,2,2,3,3,4,4,4-decachlorobutane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)C(Cl)(Cl)C(Cl)(Cl)Cl RKVAJLMJTGTGRC-UHFFFAOYSA-N 0.000 description 2
- WVFBDVFCOCLEFM-UHFFFAOYSA-N 1,1,2,4,4-pentachlorobuta-1,3-diene Chemical class ClC(Cl)=CC(Cl)=C(Cl)Cl WVFBDVFCOCLEFM-UHFFFAOYSA-N 0.000 description 2
- ZFBGKBGUMMBBMY-UHFFFAOYSA-N 1,1,2-trichlorobuta-1,3-diene Chemical compound ClC(Cl)=C(Cl)C=C ZFBGKBGUMMBBMY-UHFFFAOYSA-N 0.000 description 2
- LIPPKMMVZOHCIF-UHFFFAOYSA-N 1,1,2-trichloroprop-1-ene Chemical class CC(Cl)=C(Cl)Cl LIPPKMMVZOHCIF-UHFFFAOYSA-N 0.000 description 2
- SEQRDAAUNCRFIT-UHFFFAOYSA-N 1,1-dichlorobutane Chemical class CCCC(Cl)Cl SEQRDAAUNCRFIT-UHFFFAOYSA-N 0.000 description 2
- KNKRKFALVUDBJE-UHFFFAOYSA-N 1,2-dichloropropane Chemical compound CC(Cl)CCl KNKRKFALVUDBJE-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BNIXVQGCZULYKV-UHFFFAOYSA-N pentachloroethane Chemical compound ClC(Cl)C(Cl)(Cl)Cl BNIXVQGCZULYKV-UHFFFAOYSA-N 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- UKDOTCFNLHHKOF-FGRDZWBJSA-N (z)-1-chloroprop-1-ene;(z)-1,2-dichloroethene Chemical group C\C=C/Cl.Cl\C=C/Cl UKDOTCFNLHHKOF-FGRDZWBJSA-N 0.000 description 1
- GBQWGHDWLUYAEG-UHFFFAOYSA-N 1,1,1,2,2-pentachlorobutane Chemical compound CCC(Cl)(Cl)C(Cl)(Cl)Cl GBQWGHDWLUYAEG-UHFFFAOYSA-N 0.000 description 1
- FTCVHAQNWWBTIV-UHFFFAOYSA-N 1,1,1,2,2-pentachloropropane Chemical compound CC(Cl)(Cl)C(Cl)(Cl)Cl FTCVHAQNWWBTIV-UHFFFAOYSA-N 0.000 description 1
- FEKGWIHDBVDVSM-UHFFFAOYSA-N 1,1,1,2-tetrachloropropane Chemical compound CC(Cl)C(Cl)(Cl)Cl FEKGWIHDBVDVSM-UHFFFAOYSA-N 0.000 description 1
- MINPZZUPSSVGJN-UHFFFAOYSA-N 1,1,1,4,4,4-hexachlorobutane Chemical compound ClC(Cl)(Cl)CCC(Cl)(Cl)Cl MINPZZUPSSVGJN-UHFFFAOYSA-N 0.000 description 1
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- LBLILZRKJHDBOL-UHFFFAOYSA-N 1,1,2,3,3-pentachlorobut-1-ene Chemical class CC(Cl)(Cl)C(Cl)=C(Cl)Cl LBLILZRKJHDBOL-UHFFFAOYSA-N 0.000 description 1
- UMGQVBVEWTXECF-UHFFFAOYSA-N 1,1,2,3-tetrachloroprop-1-ene Chemical compound ClCC(Cl)=C(Cl)Cl UMGQVBVEWTXECF-UHFFFAOYSA-N 0.000 description 1
- PDKAXHLOFWCWIH-UHFFFAOYSA-N 1,1-dichlorobuta-1,3-diene Chemical class ClC(Cl)=CC=C PDKAXHLOFWCWIH-UHFFFAOYSA-N 0.000 description 1
- GBDZXPJXOMHESU-UHFFFAOYSA-N 1,2,3,4-tetrachlorobenzene Chemical compound ClC1=CC=C(Cl)C(Cl)=C1Cl GBDZXPJXOMHESU-UHFFFAOYSA-N 0.000 description 1
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical class ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- WSPZFVOCHITLIY-UHFFFAOYSA-N 2,2,3,3-tetrachlorobutane Chemical class CC(Cl)(Cl)C(C)(Cl)Cl WSPZFVOCHITLIY-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 238000007138 Deacon process reaction Methods 0.000 description 1
- 238000005684 Liebig rearrangement reaction Methods 0.000 description 1
- SLLIVEFURLIQGI-UHFFFAOYSA-N [Cl].ClC(Cl)(Cl)Cl Chemical compound [Cl].ClC(Cl)(Cl)Cl SLLIVEFURLIQGI-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 1
- 150000008422 chlorobenzenes Chemical class 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000003963 dichloro group Chemical class Cl* 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- VFDYKPARTDCDCU-UHFFFAOYSA-N hexachloropropene Chemical class ClC(Cl)=C(Cl)C(Cl)(Cl)Cl VFDYKPARTDCDCU-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C19/00—Acyclic saturated compounds containing halogen atoms
- C07C19/01—Acyclic saturated compounds containing halogen atoms containing chlorine
- C07C19/03—Chloromethanes
- C07C19/041—Carbon tetrachloride
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C21/00—Acyclic unsaturated compounds containing halogen atoms
- C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
- C07C21/04—Chloro-alkenes
- C07C21/12—Tetrachloro-ethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7037413A FR2126899B1 (enrdf_load_stackoverflow) | 1970-10-16 | 1970-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2151546A1 DE2151546A1 (de) | 1972-04-20 |
| DE2151546B2 true DE2151546B2 (de) | 1975-11-27 |
Family
ID=9062850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712151546 Granted DE2151546B2 (de) | 1970-10-16 | 1971-10-15 | Verfahren zum Nutzbarmachen der bei der Herstellung von C tief 1 - und/ oder C tief 2 -Chlorkohlenwasserstoffen anfallenden schweren Rückstände |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE774021A (enrdf_load_stackoverflow) |
| CA (1) | CA953306A (enrdf_load_stackoverflow) |
| DE (1) | DE2151546B2 (enrdf_load_stackoverflow) |
| ES (1) | ES396037A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2126899B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1316709A (enrdf_load_stackoverflow) |
| IT (1) | IT939574B (enrdf_load_stackoverflow) |
| NL (1) | NL7113635A (enrdf_load_stackoverflow) |
| SU (1) | SU548201A3 (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7112709B2 (en) * | 2003-09-09 | 2006-09-26 | Vulcan Chemicals | Method for reusing heavy end by-products in the manufacture of polychlorinated alkanes |
| MX344948B (es) | 2011-10-14 | 2017-01-12 | Bektesevic Selma | Proceso para producir 2,3,3,3-tetrafluoropropeno. |
| CN103588615B (zh) * | 2013-11-01 | 2014-12-10 | 聊城市鲁西化工工程设计有限责任公司 | 一种回收四氯乙烯的装置及工艺 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL132115C (enrdf_load_stackoverflow) * | 1966-02-09 |
-
1970
- 1970-10-16 FR FR7037413A patent/FR2126899B1/fr not_active Expired
-
1971
- 1971-10-05 NL NL7113635A patent/NL7113635A/xx unknown
- 1971-10-12 SU SU1704907A patent/SU548201A3/ru active
- 1971-10-14 IT IT5347171A patent/IT939574B/it active
- 1971-10-15 DE DE19712151546 patent/DE2151546B2/de active Granted
- 1971-10-15 GB GB4812771A patent/GB1316709A/en not_active Expired
- 1971-10-15 BE BE774021A patent/BE774021A/xx unknown
- 1971-10-15 CA CA125,281A patent/CA953306A/en not_active Expired
- 1971-10-15 ES ES396037A patent/ES396037A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT939574B (it) | 1973-02-10 |
| FR2126899B1 (enrdf_load_stackoverflow) | 1974-04-26 |
| DE2151546A1 (de) | 1972-04-20 |
| FR2126899A1 (enrdf_load_stackoverflow) | 1972-10-13 |
| GB1316709A (en) | 1973-05-16 |
| CA953306A (en) | 1974-08-20 |
| ES396037A1 (es) | 1974-04-01 |
| NL7113635A (enrdf_load_stackoverflow) | 1972-04-18 |
| SU548201A3 (ru) | 1977-02-25 |
| BE774021A (fr) | 1972-04-17 |
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