DE1925840A1 - Process for the elimination of the free ammonia accumulated in the de-acidifying steams of the hydrogen sulphide wet wash with simultaneous combustion of the hydrogen sulphide - Google Patents
Process for the elimination of the free ammonia accumulated in the de-acidifying steams of the hydrogen sulphide wet wash with simultaneous combustion of the hydrogen sulphideInfo
- Publication number
- DE1925840A1 DE1925840A1 DE19691925840 DE1925840A DE1925840A1 DE 1925840 A1 DE1925840 A1 DE 1925840A1 DE 19691925840 DE19691925840 DE 19691925840 DE 1925840 A DE1925840 A DE 1925840A DE 1925840 A1 DE1925840 A1 DE 1925840A1
- Authority
- DE
- Germany
- Prior art keywords
- ammonia
- hydrogen sulphide
- free
- largely
- hydrogen sulfide
- 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.)
- Withdrawn
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims description 42
- 229910021529 ammonia Inorganic materials 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 17
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims description 13
- 238000002485 combustion reaction Methods 0.000 title claims description 9
- 230000008030 elimination Effects 0.000 title claims description 4
- 238000003379 elimination reaction Methods 0.000 title claims description 4
- 239000007789 gas Substances 0.000 claims description 8
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000003795 desorption Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 240000006890 Erythroxylum coca Species 0.000 claims description 2
- 235000008957 cocaer Nutrition 0.000 claims description 2
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims 2
- 239000002737 fuel gas Substances 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000003517 fume Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241000282994 Cervidae Species 0.000 description 1
- 241000251730 Chondrichthyes Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/775—Liquid phase contacting processes or wet catalysis processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/001—Purifying combustible gases containing carbon monoxide working-up the condensates
-
- 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
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Industrial Gases (AREA)
- Incineration Of Waste (AREA)
- Treating Waste Gases (AREA)
- Physical Water Treatments (AREA)
Description
Dr.PAe F.eoklinghausen, den 2o. Hai 1969Dr PAe F.eoklinghausen, the 2o. Shark 1969
Dr. G. Wunderlich. / Dr. H. WeberDr. G. Wunderlich. / Dr. H. Weber
Verfahren zur Beseitigung des in den Entaäurer-Schwaden der SchwefelwaBeeratoffnagswäache an«» gereicherten freien Ammoniaks unter gleichzeitiger Verbrennung des Schwefelwasserstoffs (Zusatzanmeldung zu Patent 1 163 786)Process for the elimination of the free ammonia enriched in "" enriched free ammonia in the de-acid vapors of the SchwefelwaBeeratoffnagswäache with simultaneous combustion of the hydrogen sulfide (additional application to patent 1 163 786)
Daa Hauptpatent 1 163 786 betrifft ein Verfahren zur völligen Beseitigung des gesamten in Kokaofengasen enthaltenen, mit Wasser ausgewaschenen und in den eogenannten Entsäurersehwaden der nach dein Amiaoniakkreiolaufverfahren betriebenen Schwefelwaaaeratoffnasswäsche angereicherten freien Ammoniaks durch Zersetzung in Stickstoff und Y-uaser, das gekennzeichnet ist durch die Kombination folgender, an sich bekannter Maaenahmen:Daa main patent 1 163 786 relates to a method for complete Elimination of all contained in coca oven gases, washed out with water and in the so-called deacidification calves the one operated according to your Amiaoniakreiotlaufverfahren Schwefelwaaeratoffnassreinigung enriched free Ammonia by decomposition into nitrogen and Y-uaser, that is characterized by the combination of the following known measures:
Die Entoäurerschwaden v/erden in ihrer Gesamtheit verbrannt, die Verbrennungswärme des Ammoniaks wird In Form von hochgespanntem Dampf gewonnen, das Kondensat abgezogen und aus den Verbrennungsgasen Schwefelsäure gewonnen.The ento-acid vapors are burned in their entirety, The heat of combustion of ammonia is in the form of high tension Steam is obtained, the condensate is drawn off and sulfuric acid is obtained from the combustion gases.
Zur Durchführung dieses Verfahrens wird gewöhnlich nur ein Verbrennungsofen angewendet.Only one incinerator is usually used to carry out this process.
Ea tot auch vordre schlagen worein, nach dieaem Verfahren, hoohkonzantrierta Schwefelsäure ssu gewinnen*Ea beat dead in front of what, according to the procedure, high concentration sulfuric acid ssu win *
Bskaimi ifit auoh eia Verfahren aur Verbrennung riea in Kokeenthaltenen Amr/ioniake» bei rl eis a&u bei« IndirelcttnBskaimi ifit auoh eia process aur combustion riea Amr / ioniake contained in coke »at rl eis a & u at« Indirelcttn
009848/1749009848/1749
BAD ORiGHNALBAD ORiGHNAL
Ammoniakgewinnungsverfahren an beliebiger Stelle anfallende, von Schwefelwasserstoff weitgehend freie Ammoniakwasser einem Desorptionsprozess mit ammoniakfreien Unterfeuerungsgasen und bzw. oder Wasserdampf unterworfen wird und danach die nit Ammoniak beladenen Schwaden in den Heizzügen der Verkokungsöfen verbrannt werden.Ammonia production processes occurring at any point, ammonia water largely free of hydrogen sulfide a desorption process with ammonia-free underfiring gases and / or is subjected to water vapor and then the vapor laden with ammonia in the heating flues the coking ovens are burned.
Ferner ist ein Verfahren zur Verbrennung des in Koksofengasen enthaltenen Amaoniaks im Rahmen der indirekten Ammoniakgewinnungaver fahr en bekannt, wobei das an beliebiger Stelle anfallende, von fiehwefelwasserotoff weitgehend freie Ammoniakwaaser einem Desorptionaprozeae unterworfen, wird und für den Deaorptionaproaesa beliebige brennbare Gaae mit Ausnahme von Unterfeuerungaguaen, sowie auch Luft verwendet werden und die mit Ammoniak beladenen Gase oder die Luft als Verbrennungsmedien in den Winderhitzern von Hochöfen, den Hochöfen selbst» in Stahlwerke- o-Jer Hüttenöfen oder als Komponenten zur Urzeugung von Gasen in Gasgeneratoren oder Gaserseugungsanla— gen eingesetzt werden.There is also a method of burning the in coke oven gases contained Amaoniaks as part of the indirect ammonia production Fahr s known, whereby the ammonia waaser which occurs at any point and is largely free of hydrogen sulfide is subjected to a desorption process, and for the Deaorptionaproaesa any combustible Gaae with the exception of Sub-fire agua, as well as air, can be used and the gases loaded with ammonia or the air as combustion media in the coils of blast furnaces, the blast furnaces themselves » in steel works o-Jer smelting furnaces or as components for spontaneous generation of gases in gas generators or gas extraction systems genes can be used.
Bei der Beseitigung fles in den Entsiurerachwuden der Schwefelwutjseratoffnaöswäsche angereicherten freien Ammoniaks unter gleichzeitiger Verbrennung des Schwefelwasserstoffe zu Schwefel a lure nach Patent 1 163 786 hut sich nun gezeigt, das3 es günstig i)ein kann, die Gesamtheit der Bntaäurerachwaden in weitgehend uchwefelwaaseratoffreie Aiamoniakschwaden und v/eitgohfjnd aiamoniakfreie Bchwefelwasaeiatoffschwaden aufzutrennen und nie getrennt für aich au verbrennen.In removing les f in the Entsiurerachwuden the Schwefelwutjseratoffnaöswäsche enriched free ammonia with simultaneous combustion of the hydrogen sulphide to sulfur a lure according to Patent 1,163,786 hat now been found DAS3 it convenient i) a can, the entirety of the Bntaäurerachwaden in largely uchwefelwaaseratoffreie Aiamoniakschwaden and v / eitgohfjnd aiamonia-free sulphurous wasocyanate vapor to separate and never burn separately for aich au.
Im Gügenoutz au dam bekannten Verfahren müssen dabei s Jurchführung de» Verfahrens awar nilmleatöno iS'/c-i V'erbr öfen inatalliert werden* Ea ergibt uIch jödoch -lev 7o-rtoils dasa im Zu.re der Aufarböitung des Söhwofelwaoseratoffe Wöüi Kundanaat iibgeao^«n werden muas, dus iifcflnLÄicÄ*]cxoc4«sc Schwefel dioxid enthalten kann.In the Gügenoutz dam au known method, where s Jurchführung de "process awar nilmleatöno iS '/ ci V'erbr furnaces inatalliert * Ea gives u I jödoch -LEV 7o-rtoil s dasa in Zu.re the Aufarböitung of Söhwofelwaoseratoffe Wöüi Kundanaat iibgeao ^ It must be said that iifcflnLÄicÄ *] cxoc4 «sc may contain sulfur dioxide.
BAD ORIGINALBATH ORIGINAL
009848/1749009848/1749
Die Auftrennung dur Entsäurerschwaden in weitgehend schwiefelwasserstoffreie Ammoniakschwaden und in weitgehend ammoniakfreie Schwefelwasserstoffschwaden kann in einer der Ammoniak-Gchwefelwasserstoff-KreislauiVäsche nachgeschalteten Trennkolonne oder im Oberteil der Entaäurerkoloiine der Ammoniakfjchwefelwasserstoff-Kreislaufwäsche selbst vorgenommen werdenf etwa indem man diese Kolonne um einige Trennböden erhöht und sie mit entsprechenden RückflU3smengen betreibt.The separation by deacid fumes into largely ammonia-free ammonia fumes and into largely ammonia-free hydrogen sulfide fumes can be carried out in a separating column downstream of the ammonia-hydrogen sulfide circuit or in the upper part of the deacid column of the ammonia-hydrogen sulfide circuit wash itself, for example by increasing this column by a few separating plates Reflux quantities operates.
Sowohl den Ammoniak- wie auch dea Schwefelwasserstoff-Desorptionsschwaden köna.n zur Erleichterung des Verbrennungsvorganges Zünd- oder Brenngu.Be zugegeben ..erden. Both the ammonia and the hydrogen sulfide desorption plumes To facilitate the combustion process, ignition or combustion materials are added.
10ie Arojiioniakverbrennungsgase können nach ihrer Abkühlung im
Abhitzekessel über den Kanin in die Atmosphäre entlassen
-erden.After cooling in the waste heat boiler, the arojiioniac combustion gases can be released into the atmosphere via the rabbit
-earth.
Die können aber auch nach %ede.Ttt nachdem Kondensat daraus
abgezogen wurde, zur Einstellung von günstigen Temperaturen
und Konzentrationen an Schwefeldioxid teilweise oder völlig vor der nasskatalytiachen Oxidation mit den verbrämten
Schwefelwasserstoffßchwaden vereinigt werden·But they can also after % ede.Tt t after condensate from it
was deducted to set favorable temperatures and concentrations of sulfur dioxide partially or completely before the wet catalytic oxidation with the trimmed
Hydrogen sulphide plumes are combined
Das neue Verfahren wird durch das folgenden Beispiel erläutert: The new procedure is illustrated by the following example:
Am Fu3se des Entsäurers einer Araaoniak-Schwelelwasaerstoff-Kreislaufwäsche
für 75 ooo Hm /h Kokereigaa treten 12o m /h praktisch von Schwefelwasserstoff freies Animoniakwassei mit
einem Aim.toniakgehalt von 14 g/l ( 1 68o kg NH,/h) mit einer
Temperatur von 95 C aus. Die 'der laufenden Ammoniakproduktion von 49o kg/h entsprechende Menge des Ammoniakwasaere, d.h.
35 m /h, wer Jen in einen Abtreiber eingeführt, der am Pusse
mit uiner «ülchen Dampfmenge beocliickt wird, dass das anfallende
Abwasser weniger als o,l g freies Ammoniak pro
Liter enthalteAt the foot of the deacidifier of an araaonia-smoldering hydrogen cycle wash for 75,000 Hm / h Kokereigaa, 12o m / h practically hydrogen sulfide-free Animoniakwassei with an Aim.tonia content of 14 g / l (1,680 kg NH, / h) with a temperature of 95 C off. The amount of ammonia water corresponding to the current ammonia production of 49o kg / h, ie
35 m / h, if Jen is introduced to an abortionist who is clicked on the Pusse with a small amount of steam that the wastewater produced is less than 0.1 g of free ammonia per
Liters contained
009848/17^ 8ADORK3INAL 009848/17 ^ 8ADORK 3 INAL
Am Kopf der Kolonne treten 3 29o kg/h Schwaden aus, die praktisch die anfallenden 49o kg/h Ammoniak enthalten. Biese werden in einem bekannten Abhitzekessel verbrannt und dabei 3$ο t/h Sattdampf τοη 4o at gewonnen. Am Kopf des Enteäurers fallen 55o Na /h Schwaden mit einem Schwefelwasserstoff gehalt von 5o Tol.J» an, die in bekannter .eise xu 1 5oo kg/h 78 jiiger Schwefelsäure aufgearbeitet werden.At the top of the column, 3290 kg / h vapors emerge, which practically contain the 49o kg / h ammonia produced. Tucks are burned in a well-known waste heat boiler and 3 $ ο t / h saturated steam τοη 4o at. At the head of the deer, 55o Na / h vapor with a hydrogen sulphide content of 50 tol./4 is produced, which is worked up in the known manner xu 1500 kg / h 78% sulfuric acid.
In einer anderen Anlage konnten aus deqfichwaden 1 2oo kg/n 96 jtige Schwefelsäure erhalten werden.In another plant, 1,2oo kg / n of 96% sulfuric acid could be obtained from deqfichwaden.
BAD ORfGfNALBAD ORfGfNAL
001141/174!001141/174!
Claims (3)
A SchwefeltrioxidWaueerBtoffachwaden before the wet-catalytic oxidation
A sulfur trioxide
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1925840A DE1925840B2 (en) | 1969-05-21 | 1969-05-21 | Process for the production of sulfuric acid from the hydrogen sulfide of the coke oven gas |
| YU00962/79A YU96279A (en) | 1969-05-21 | 1970-04-14 | Process for the removal of free ammonia enriched in deacidifacation evaporations in the wet washing of hydrogen sulfide under simultaneous combustion of hydrogen sulfide |
| YU962/70A YU35863B (en) | 1969-05-21 | 1970-04-14 | Process for the removal of free ammonia enriched in deacidification evaporations in the wet washing of hydrogen sulfide under simultaneous combustion of hydrogen sulfide |
| IT24655/70A IT970527B (en) | 1969-05-21 | 1970-05-14 | PROCESS FOR THE ELIMINATION OF FREE AMMONIA ENRICHED IN THE FUMES OF THE DEACIDIFIER OF THE WET HYDROGEN SULFUR RATE WITH CONTEMPORARY COMBUST AND OF THE HYDROGEN SULFURATE ITSELF |
| AT445370A AT312002B (en) | 1969-05-21 | 1970-05-19 | Process for the production of sulfuric acid from the hydrogen sulfide of the coke oven gas |
| FR7018258A FR2043574A6 (en) | 1969-05-21 | 1970-05-20 | |
| SE06943/70A SE360106B (en) | 1969-05-21 | 1970-05-20 | |
| BE750749D BE750749R (en) | 1969-05-21 | 1970-05-21 | METHOD AND DEVICE FOR THE DECOMPOSITION OF AMMONIA FROM |
| GB2464670A GB1318393A (en) | 1969-05-21 | 1970-05-21 | Process for the elimination of ammonia present in coke-oven gases |
| JP45043665A JPS5034562B1 (en) | 1969-05-21 | 1970-05-21 | |
| US00246041A US3819816A (en) | 1969-05-21 | 1972-04-20 | Process for the manufacture of sulfur or sulfuric acid from coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1925840A DE1925840B2 (en) | 1969-05-21 | 1969-05-21 | Process for the production of sulfuric acid from the hydrogen sulfide of the coke oven gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1925840A1 true DE1925840A1 (en) | 1970-11-26 |
| DE1925840B2 DE1925840B2 (en) | 1975-08-28 |
Family
ID=5734765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1925840A Withdrawn DE1925840B2 (en) | 1969-05-21 | 1969-05-21 | Process for the production of sulfuric acid from the hydrogen sulfide of the coke oven gas |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5034562B1 (en) |
| AT (1) | AT312002B (en) |
| BE (1) | BE750749R (en) |
| DE (1) | DE1925840B2 (en) |
| FR (1) | FR2043574A6 (en) |
| GB (1) | GB1318393A (en) |
| IT (1) | IT970527B (en) |
| YU (2) | YU35863B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319035U (en) * | 1976-07-28 | 1978-02-18 | ||
| JP2016041990A (en) * | 2014-08-18 | 2016-03-31 | 東洋エンジニアリング株式会社 | Heat generating device including boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE648106A (en) * | 1964-05-19 | 1964-09-16 |
-
1969
- 1969-05-21 DE DE1925840A patent/DE1925840B2/en not_active Withdrawn
-
1970
- 1970-04-14 YU YU962/70A patent/YU35863B/en unknown
- 1970-04-14 YU YU00962/79A patent/YU96279A/en unknown
- 1970-05-14 IT IT24655/70A patent/IT970527B/en active
- 1970-05-19 AT AT445370A patent/AT312002B/en not_active IP Right Cessation
- 1970-05-20 FR FR7018258A patent/FR2043574A6/fr not_active Expired
- 1970-05-21 BE BE750749D patent/BE750749R/en active
- 1970-05-21 JP JP45043665A patent/JPS5034562B1/ja active Pending
- 1970-05-21 GB GB2464670A patent/GB1318393A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT970527B (en) | 1974-04-20 |
| BE750749R (en) | 1970-11-03 |
| FR2043574A6 (en) | 1971-02-19 |
| YU35863B (en) | 1981-08-31 |
| AT312002B (en) | 1973-12-10 |
| GB1318393A (en) | 1973-05-31 |
| DE1925840B2 (en) | 1975-08-28 |
| YU96279A (en) | 1981-02-28 |
| JPS5034562B1 (en) | 1975-11-10 |
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