GB1282949A - Process for manufacturing gels containing molybdenum and iron and their uses - Google Patents
Process for manufacturing gels containing molybdenum and iron and their usesInfo
- Publication number
- GB1282949A GB1282949A GB6330669A GB6330669A GB1282949A GB 1282949 A GB1282949 A GB 1282949A GB 6330669 A GB6330669 A GB 6330669A GB 6330669 A GB6330669 A GB 6330669A GB 1282949 A GB1282949 A GB 1282949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- containing molybdenum
- gels containing
- dec
- sio
- 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.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 title abstract 2
- 239000011733 molybdenum Substances 0.000 title abstract 2
- 239000000499 gel Substances 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 2
- 229910004298 SiO 2 Inorganic materials 0.000 abstract 2
- 230000003197 catalytic effect Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8871—Rare earth metals or actinides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0052—Preparation of gels
- B01J13/0056—Preparation of gels containing inorganic material and water
- B01J13/006—Preparation of gels containing inorganic material and water by precipitation, coagulation, hydrolyse coacervation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/881—Molybdenum and iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8877—Vanadium, tantalum, niobium or polonium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8878—Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/888—Tungsten
- B01J23/8885—Tungsten containing also molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8898—Manganese, technetium or rhenium containing also molybdenum
-
- 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
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
- C07C45/38—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a primary hydroxyl group
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Optics & Photonics (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Optical Filters (AREA)
- Compounds Of Iron (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR182301 | 1968-12-30 | ||
| FR6930523A FR2060171A6 (enExample) | 1968-12-30 | 1969-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1282949A true GB1282949A (en) | 1972-07-26 |
Family
ID=26182445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6330669A Expired GB1282949A (en) | 1968-12-30 | 1969-12-30 | Process for manufacturing gels containing molybdenum and iron and their uses |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS505678B1 (enExample) |
| BE (1) | BE743578A (enExample) |
| CH (1) | CH522435A (enExample) |
| DE (1) | DE1965176A1 (enExample) |
| ES (1) | ES375086A1 (enExample) |
| FR (1) | FR2060171A6 (enExample) |
| GB (1) | GB1282949A (enExample) |
| LU (1) | LU60086A1 (enExample) |
| NL (1) | NL165725C (enExample) |
| PL (1) | PL75253B1 (enExample) |
| RO (1) | RO55608A (enExample) |
| SU (1) | SU499783A3 (enExample) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319754A1 (de) * | 1987-11-27 | 1989-06-14 | BASF Aktiengesellschaft | Verfahren zur Herstellung einer für die Gasphasenoxidation von Propylen zu Acrolein und Acrylsäure katalytisch aktiven Masse enthaltend Mo, Bi, Fe, Co u./o. Ni |
| US5017542A (en) * | 1988-08-16 | 1991-05-21 | Basf Aktiengesellschaft | Catalyst for the oxidation and ammonoxidation of α-, β-unsaturated hydrocarbons |
| WO2002004117A1 (en) * | 2000-07-12 | 2002-01-17 | Akzo Nobel N.V. | Process for preparing an additive-based mixed metal catalyst |
| US6566296B2 (en) | 2000-07-12 | 2003-05-20 | Akzo Nobel N.V. | Process for preparing an additive-based mixed metal catalyst, its composition and use |
| WO2015004446A1 (en) * | 2013-07-09 | 2015-01-15 | Johnson Matthey Public Limited Company | Catalyst for aldehyde production |
| US9254478B2 (en) | 2009-08-24 | 2016-02-09 | Albemarle Corporation | Solutions and catalysts comprising group VI metal, group VIII metal, phosphorus and an additive |
| CN114931955A (zh) * | 2022-05-25 | 2022-08-23 | 西南化工研究设计院有限公司 | 一种耐高温甲醇氧化制甲醛催化剂及制备方法 |
| CN120618476A (zh) * | 2025-06-07 | 2025-09-12 | 北京石油化工学院 | 一种形貌可控的铁钼法甲醛催化剂的制备方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2243021B1 (enExample) * | 1973-09-12 | 1978-02-17 | Inst Francais Du Petrole | |
| ITMI20042456A1 (it) * | 2004-12-22 | 2005-03-22 | Sued Chemie Mt Srl | Catalizzatori per l'ossidazione del metanolo a formaldeide |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3058687A (en) * | 1959-02-18 | 1962-10-16 | Teleflex Prod Ltd | Safety harness |
-
1969
- 1969-09-08 FR FR6930523A patent/FR2060171A6/fr not_active Expired
- 1969-12-17 CH CH1879769A patent/CH522435A/fr not_active IP Right Cessation
- 1969-12-23 BE BE743578A patent/BE743578A/fr unknown
- 1969-12-23 LU LU60086A patent/LU60086A1/xx unknown
- 1969-12-25 RO RO6961969A patent/RO55608A/ro unknown
- 1969-12-27 DE DE19691965176 patent/DE1965176A1/de active Pending
- 1969-12-29 SU SU1389501A patent/SU499783A3/ru active
- 1969-12-29 PL PL13782469A patent/PL75253B1/pl unknown
- 1969-12-30 JP JP209470A patent/JPS505678B1/ja active Pending
- 1969-12-30 NL NL6919550A patent/NL165725C/xx not_active IP Right Cessation
- 1969-12-30 ES ES375086A patent/ES375086A1/es not_active Expired
- 1969-12-30 GB GB6330669A patent/GB1282949A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0319754A1 (de) * | 1987-11-27 | 1989-06-14 | BASF Aktiengesellschaft | Verfahren zur Herstellung einer für die Gasphasenoxidation von Propylen zu Acrolein und Acrylsäure katalytisch aktiven Masse enthaltend Mo, Bi, Fe, Co u./o. Ni |
| US4916103A (en) * | 1987-11-27 | 1990-04-10 | Basf Aktiengesellschaft | Preparation of a catalytically active composition for the gas phase oxidation of propylene to acrolein and acrylic acid |
| US5017542A (en) * | 1988-08-16 | 1991-05-21 | Basf Aktiengesellschaft | Catalyst for the oxidation and ammonoxidation of α-, β-unsaturated hydrocarbons |
| WO2002004117A1 (en) * | 2000-07-12 | 2002-01-17 | Akzo Nobel N.V. | Process for preparing an additive-based mixed metal catalyst |
| US6566296B2 (en) | 2000-07-12 | 2003-05-20 | Akzo Nobel N.V. | Process for preparing an additive-based mixed metal catalyst, its composition and use |
| US6860987B2 (en) | 2000-07-12 | 2005-03-01 | Akzo Nobel N.V. | Process for the hydroprocessing of hydrocarbon feedstocks |
| US9254478B2 (en) | 2009-08-24 | 2016-02-09 | Albemarle Corporation | Solutions and catalysts comprising group VI metal, group VIII metal, phosphorus and an additive |
| US10173201B2 (en) | 2009-08-24 | 2019-01-08 | Albemarle Europe Sprl | Solutions and catalysts comprising group VI metal, group VIII metal, phosphorus and an additive |
| WO2015004446A1 (en) * | 2013-07-09 | 2015-01-15 | Johnson Matthey Public Limited Company | Catalyst for aldehyde production |
| CN114931955A (zh) * | 2022-05-25 | 2022-08-23 | 西南化工研究设计院有限公司 | 一种耐高温甲醇氧化制甲醛催化剂及制备方法 |
| CN120618476A (zh) * | 2025-06-07 | 2025-09-12 | 北京石油化工学院 | 一种形貌可控的铁钼法甲醛催化剂的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| RO55608A (enExample) | 1974-01-03 |
| NL6919550A (enExample) | 1970-07-02 |
| DE1965176A1 (de) | 1970-08-20 |
| ES375086A1 (es) | 1972-08-16 |
| SU499783A3 (ru) | 1976-01-15 |
| JPS505678B1 (enExample) | 1975-03-06 |
| CH522435A (fr) | 1972-06-30 |
| BE743578A (fr) | 1970-05-28 |
| PL75253B1 (enExample) | 1974-12-31 |
| FR2060171A6 (enExample) | 1971-06-18 |
| NL165725B (nl) | 1980-12-15 |
| LU60086A1 (enExample) | 1970-02-23 |
| NL165725C (nl) | 1981-05-15 |
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