DE2723333C2 - - Google Patents
Info
- Publication number
- DE2723333C2 DE2723333C2 DE2723333A DE2723333A DE2723333C2 DE 2723333 C2 DE2723333 C2 DE 2723333C2 DE 2723333 A DE2723333 A DE 2723333A DE 2723333 A DE2723333 A DE 2723333A DE 2723333 C2 DE2723333 C2 DE 2723333C2
- Authority
- DE
- Germany
- Prior art keywords
- venturi
- liquid
- reaction
- line
- sulfur trioxide
- 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
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims description 124
- 239000007788 liquid Substances 0.000 claims description 91
- 238000010791 quenching Methods 0.000 claims description 61
- 239000007795 chemical reaction product Substances 0.000 claims description 53
- 238000006243 chemical reaction Methods 0.000 claims description 44
- 239000011541 reaction mixture Substances 0.000 claims description 40
- 230000000171 quenching effect Effects 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 19
- 238000006277 sulfonation reaction Methods 0.000 claims description 18
- 239000011261 inert gas Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 150000002894 organic compounds Chemical class 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 238000005670 sulfation reaction Methods 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 230000019635 sulfation Effects 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 64
- 239000007789 gas Substances 0.000 description 59
- 239000002245 particle Substances 0.000 description 21
- 238000011144 upstream manufacturing Methods 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 12
- 239000000376 reactant Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000889 atomisation Methods 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004711 α-olefin Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- KWKXNDCHNDYVRT-UHFFFAOYSA-N dodecylbenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1 KWKXNDCHNDYVRT-UHFFFAOYSA-N 0.000 description 3
- 239000003701 inert diluent Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- -1 air Chemical compound 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FKKAGFLIPSSCHT-UHFFFAOYSA-N 1-dodecoxydodecane;sulfuric acid Chemical compound OS(O)(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC FKKAGFLIPSSCHT-UHFFFAOYSA-N 0.000 description 1
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 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 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012259 ether extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001180 sulfating effect Effects 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/14—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation of sulfo or halosulfonyl groups
-
- 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
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
- B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B45/00—Formation or introduction of functional groups containing sulfur
- C07B45/02—Formation or introduction of functional groups containing sulfur of sulfo or sulfonyldioxy groups
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
- B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
- B01J2219/00065—Pressure measurement
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger separate from the reactor
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00121—Controlling the temperature by direct heating or cooling
- B01J2219/00123—Controlling the temperature by direct heating or cooling adding a temperature modifying medium to the reactants
-
- 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
- Y02P20/582—Recycling of unreacted starting or intermediate materials
-
- 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
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/54—Venturi scrubbers
-
- 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
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/56—Variable venturi
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69065276A | 1976-05-27 | 1976-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2723333A1 DE2723333A1 (de) | 1977-12-15 |
| DE2723333C2 true DE2723333C2 (en, 2012) | 1989-12-28 |
Family
ID=24773357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772723333 Granted DE2723333A1 (de) | 1976-05-27 | 1977-05-24 | Sulfonierverfahren und -vorrichtung |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4113438A (en, 2012) |
| JP (1) | JPS5951937B2 (en, 2012) |
| BR (1) | BR7703415A (en, 2012) |
| CA (1) | CA1089486A (en, 2012) |
| DE (1) | DE2723333A1 (en, 2012) |
| FR (1) | FR2352767A1 (en, 2012) |
| GB (2) | GB1584002A (en, 2012) |
| IN (1) | IN146339B (en, 2012) |
| IT (1) | IT1109117B (en, 2012) |
| SU (2) | SU898955A3 (en, 2012) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3009594A1 (de) * | 1979-03-14 | 1980-09-25 | Plasmine Corp | Verfahren zur herstellung von leimungsmitteln fuer zelluloseprodukte |
| US4606791A (en) * | 1979-03-14 | 1986-08-19 | Reichhold Chemicals, Inc. | Sizing agents for cellulosic products |
| US4483744A (en) * | 1979-03-14 | 1984-11-20 | The Plasmine Corporation | Sizing agents for cellulosic products |
| US4322367A (en) * | 1979-11-26 | 1982-03-30 | Colgate-Palmolive Company | Deoiling of aqueous solutions of sodium lauryl sulfate |
| DE3330445A1 (de) * | 1983-08-24 | 1985-03-21 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von als feststoffe anfallenden chemischen verbindungen aus fluessigen ausgangsstoffen |
| DE3402622C2 (de) * | 1984-01-26 | 1986-10-30 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Diphenyl-4,4'-disulfonsäure |
| US4554078A (en) * | 1984-05-21 | 1985-11-19 | At&T Technologies, Inc. | Methods of and apparatus for effluent disposal |
| GB2189237B (en) * | 1986-03-20 | 1990-06-13 | Wessex Water Authority | Anaerobic digester |
| HU205724B (en) * | 1986-11-28 | 1992-06-29 | Istvan Kenyeres | Method for incereasing the performance and dissolving degree of impact jet gas-imput |
| US4812292A (en) * | 1987-10-26 | 1989-03-14 | Joslyn Valve Corporation | Chemical sterilant recovery and conversion |
| WO1993017992A1 (en) * | 1990-08-23 | 1993-09-16 | The Chemithon Corporation | Sulfonation process for viscous sulfonic acid |
| US5136088A (en) * | 1990-08-23 | 1992-08-04 | The Chemithon Corporation | Sulfonation process for viscous sulfonic acid |
| US5211916A (en) * | 1991-12-24 | 1993-05-18 | Praxair Technology, Inc. | Stripping system |
| US5942020A (en) * | 1996-01-11 | 1999-08-24 | Tensor Machinery Limited | Apparatus for evacuating air from curing area of UV lamps for fiber-like substrates |
| CN101423482B (zh) * | 2008-11-27 | 2012-07-25 | 中国日用化学工业研究院 | 一种磺化中和反应一体化的方法 |
| CN111362780B (zh) * | 2020-04-21 | 2022-12-27 | 哈密盛典科技有限公司 | 一种利用三氧化硫生产间苯二酚的方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2897062A (en) * | 1954-02-05 | 1959-07-28 | Phillips Petroleum Co | Gas reactor |
| NL278901A (en, 2012) * | 1961-05-26 | |||
| GB1041592A (en) * | 1962-02-21 | 1966-09-07 | Daikin Ind Ltd | Apparatus for the pyrolysis of chlorodifluoromethane |
| NL136581C (en, 2012) * | 1962-12-12 | 1900-01-01 | ||
| US3535339A (en) * | 1965-12-17 | 1970-10-20 | Procter & Gamble | Process and apparatus for the continuous reaction of organic compounds with undiluted sulfur trioxide |
| DE1926795A1 (de) * | 1969-05-24 | 1970-11-26 | Metallgesellschaft Ag | Sulfierverfahren |
| GB1279559A (en) * | 1969-05-24 | 1972-06-28 | Metallgesellschaft Ag | A sulphonation and/or sulphonation process |
| DE2343407A1 (de) * | 1972-08-30 | 1974-03-14 | Allied Chem | Reaktionsprozess und vorrichtung zur durchfuehrung desselben |
-
1976
- 1976-12-01 US US05/746,242 patent/US4113438A/en not_active Expired - Lifetime
-
1977
- 1977-05-03 CA CA277,481A patent/CA1089486A/en not_active Expired
- 1977-05-10 IN IN697/CAL/77A patent/IN146339B/en unknown
- 1977-05-24 IT IT68185/77A patent/IT1109117B/it active
- 1977-05-24 DE DE19772723333 patent/DE2723333A1/de active Granted
- 1977-05-25 FR FR7715951A patent/FR2352767A1/fr active Granted
- 1977-05-25 GB GB16097/79A patent/GB1584002A/en not_active Expired
- 1977-05-25 GB GB22159/77A patent/GB1584001A/en not_active Expired
- 1977-05-26 BR BR7703415A patent/BR7703415A/pt unknown
- 1977-05-27 SU SU772489552A patent/SU898955A3/ru active
- 1977-05-27 JP JP52062058A patent/JPS5951937B2/ja not_active Expired
-
1979
- 1979-06-25 SU SU792790956A patent/SU1148558A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| IN146339B (en, 2012) | 1979-05-05 |
| GB1584001A (en) | 1981-02-04 |
| JPS5951937B2 (ja) | 1984-12-17 |
| BR7703415A (pt) | 1978-02-28 |
| US4113438A (en) | 1978-09-12 |
| SU898955A3 (ru) | 1982-01-15 |
| DE2723333A1 (de) | 1977-12-15 |
| IT1109117B (it) | 1985-12-16 |
| FR2352767A1 (fr) | 1977-12-23 |
| CA1089486A (en) | 1980-11-11 |
| JPS52144626A (en) | 1977-12-02 |
| GB1584002A (en) | 1981-02-04 |
| SU1148558A3 (ru) | 1985-03-30 |
| FR2352767B1 (en, 2012) | 1983-10-21 |
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