DE394362C - Process for the production of sulfur dioxide from the sulphates of the alkaline earths, magnesium or iron - Google Patents
Process for the production of sulfur dioxide from the sulphates of the alkaline earths, magnesium or ironInfo
- Publication number
- DE394362C DE394362C DEV14875D DEV0014875D DE394362C DE 394362 C DE394362 C DE 394362C DE V14875 D DEV14875 D DE V14875D DE V0014875 D DEV0014875 D DE V0014875D DE 394362 C DE394362 C DE 394362C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- sulfur
- reducible
- sulfur dioxide
- takes place
- 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
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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
-
- 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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
- C01B17/506—Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compounds Of Iron (AREA)
- Gas Separation By Absorption (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
Verfahren zur Erzeugung von Schwefeldioxyd aus den Sulfaten der alkalischen Erden, des Magnesiums oder Eisens. Gemäß dem Hauptverfahren werden zur Gewinnting von Schwefeldioxyd die Sulfate der alkalischen Erden, des Magnesiums oder Eisens mit metallischem Eisen oder auch anderen durch Wasserstoffleicht reduzierbaren Schwermetallen oder auch deren niederen Oxyden durch Erhitzung in Gegenwart erweichenrler Flußmittel zur Reaktion gebracht, und zwar gemäß einer weiteren Erfindung der Anm°-1-derin in solchen Mengen, wie sie zur Bildung von Stilfit hinreichend sind. Es wurde nun gefunden, daß man mit Erfolg auch die Reduktionsmittel in solchen Mengen verwenden kann, wie sie zur Bildung von Schwefelmetallen (Sulfiden) hinreichend sind und auch im 1'berschuß, wenn man das Reduktionsprodukt darauf mit einem Gemenge von Wasserdampf und Luft auf höhere Temperatur bringt, wodurch sich der Schwefel der Sulfide als Schwefeldioxyd entwickelt.Process for the production of sulfur dioxide from the sulphates of the alkaline Earth, magnesium or iron. According to the main procedure, become a winning thing of sulfur dioxide, the sulphates of the alkaline earths, of magnesium, or of iron with metallic iron or other heavy metals that can be easily reduced by hydrogen or their lower oxides by heating in the presence of softening fluxes brought to reaction, according to a further invention of the applicant in such amounts as are sufficient for the formation of Stilfit. It was now found that the reducing agents can also be used successfully in such amounts can, as they are sufficient for the formation of sulfur metals (sulfides) and also in excess if the reduction product is then mixed with a mixture of steam and brings air to a higher temperature, which causes the sulfur to become the sulfide Sulfur dioxide evolved.
Dabei können auch das Eisen und die anderen Metalle und ihre niederen Oxyde durch Kohle oder durch Wassergas oder andere reduzierende Gase teilweise ersetzt werden, wobei auch die reduzierenden Metalle oder ihre niederen Oxydationsstufen aus höheren Stufen durch die Kohle oder reduzierende Gase im Prozeß selbst erst erzeugt werden können.Iron and other metals and their lower ones can also be used Oxides partially replaced by coal or by water gas or other reducing gases the reducing metals or their lower oxidation states from higher stages through the coal or reducing gases in the process itself can be generated.
Man kann auch so verfahren, daß unter Luftabschluß oder im indifferenten Gasstrom die Reduktion bei etwa 6oo° ausgeführt wird, der bei goo° dann die Oxydation des Schwefels zu Schwefeldioxyd - zum Teil auch zu Schwefeltrioxyd lyzw. Schwefelsäure - im Wasserdampfluftgemisch folgt. Bei geeigneter Anordnung läßt sich auch naturgemäß der eleinentare Schwefel als solcher gewinnen.One can also proceed in such a way that in the absence of air or in the indifferent Gas flow the reduction is carried out at about 600 °, that at goo ° then the oxidation of sulfur to sulfur dioxide - partly also to sulfur trioxide lyzw. sulfuric acid - follows in the steam-air mixture. With a suitable arrangement can also naturally the essential sulfur gain as such.
Das Metall des entstandenen Reaktionsproduktes wird nach erfolgter Beendigung der Reaktion reduziert - etwas durch Wassergas --und von Kalk befreit, um von neuem Anwendung zu finden. .The metal of the resulting reaction product is after Completion of the reaction reduced - somewhat with water gas - and freed from lime, to find new application. .
Beispiele. 1. 3.4 kg Gips werden durch 56 kg Eisenfeile auf etwa goo° unter L uftabschltiß erhitzt, worauf bei der gleichen Temperatur über das Reduktionsprodukt ein Gemenge von Wasserdampf und Luft geleitet wird. 11. 23 kg Schwerspat werden durch 12 kg Eisenfeile und 2 kg Anthrazit auf etwa 6oo° im Stickstoff erhitzt, worauf das Produkt im Wasserdampfluftgemisch bei etwa goo° zur Schwefeldioxyd-bzw. Trioxydentwicklung weiter erhitzt wird.Examples. 1. 3.4 kg of gypsum are heated by 56 kg iron files to about goo ° with the air being shut off, whereupon a mixture of water vapor and air is passed over the reduction product at the same temperature. 11. 23 kg barite are heated by 12 kg iron files and 2 kg anthracite to about 600 ° in nitrogen, whereupon the product in a steam-air mixture at about goo ° to sulfur dioxide or. Trioxide evolution is further heated.
Claims (1)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV14668D DE386295C (en) | 1919-04-17 | 1919-04-17 | Process for the production of sulphurous acid |
DEV14876D DE391602C (en) | 1919-04-17 | 1919-08-09 | Process for the production of sulphurous acid by heating sulphates of the alkaline earths |
DEV14875D DE394362C (en) | 1919-04-17 | 1919-08-09 | Process for the production of sulfur dioxide from the sulphates of the alkaline earths, magnesium or iron |
DEV15204D DE391603C (en) | 1919-04-17 | 1920-01-06 | Process for the production of sulphurous acid by heating sulphates of the alkaline earths |
DE1920352125D DE352125C (en) | 1919-04-17 | 1920-04-15 | Process for the production of sulphurous acid from the sulphates of the alkaline earths and magnesium |
GB1970520A GB149662A (en) | 1919-04-17 | 1920-07-08 | Improved manufacture of sulphur dioxide by heating sulphates of alkaline earths magnesium and iron |
FR519787D FR519787A (en) | 1919-04-17 | 1920-07-08 | Improvements to automobile horns |
GB1048921A GB161581A (en) | 1919-04-17 | 1921-04-09 | A process for the manufacture of sulphurous acid |
DER55913D DE375872C (en) | 1919-04-17 | 1922-05-16 | Process for the regeneration of the iron oxide used in the process for the production of sulphurous acid from the sulphates of the alkaline earths and magnesium according to patent 352125 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV14668D DE386295C (en) | 1919-04-17 | 1919-04-17 | Process for the production of sulphurous acid |
DEV14875D DE394362C (en) | 1919-04-17 | 1919-08-09 | Process for the production of sulfur dioxide from the sulphates of the alkaline earths, magnesium or iron |
DEV15204D DE391603C (en) | 1919-04-17 | 1920-01-06 | Process for the production of sulphurous acid by heating sulphates of the alkaline earths |
DE352125T | 1920-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE394362C true DE394362C (en) | 1924-04-24 |
Family
ID=40344694
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV14668D Expired DE386295C (en) | 1919-04-17 | 1919-04-17 | Process for the production of sulphurous acid |
DEV14876D Expired DE391602C (en) | 1919-04-17 | 1919-08-09 | Process for the production of sulphurous acid by heating sulphates of the alkaline earths |
DEV14875D Expired DE394362C (en) | 1919-04-17 | 1919-08-09 | Process for the production of sulfur dioxide from the sulphates of the alkaline earths, magnesium or iron |
DEV15204D Expired DE391603C (en) | 1919-04-17 | 1920-01-06 | Process for the production of sulphurous acid by heating sulphates of the alkaline earths |
DE1920352125D Expired DE352125C (en) | 1919-04-17 | 1920-04-15 | Process for the production of sulphurous acid from the sulphates of the alkaline earths and magnesium |
DER55913D Expired DE375872C (en) | 1919-04-17 | 1922-05-16 | Process for the regeneration of the iron oxide used in the process for the production of sulphurous acid from the sulphates of the alkaline earths and magnesium according to patent 352125 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV14668D Expired DE386295C (en) | 1919-04-17 | 1919-04-17 | Process for the production of sulphurous acid |
DEV14876D Expired DE391602C (en) | 1919-04-17 | 1919-08-09 | Process for the production of sulphurous acid by heating sulphates of the alkaline earths |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV15204D Expired DE391603C (en) | 1919-04-17 | 1920-01-06 | Process for the production of sulphurous acid by heating sulphates of the alkaline earths |
DE1920352125D Expired DE352125C (en) | 1919-04-17 | 1920-04-15 | Process for the production of sulphurous acid from the sulphates of the alkaline earths and magnesium |
DER55913D Expired DE375872C (en) | 1919-04-17 | 1922-05-16 | Process for the regeneration of the iron oxide used in the process for the production of sulphurous acid from the sulphates of the alkaline earths and magnesium according to patent 352125 |
Country Status (3)
Country | Link |
---|---|
DE (6) | DE386295C (en) |
FR (1) | FR519787A (en) |
GB (2) | GB149662A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2424937A (en) * | 1943-02-22 | 1947-07-29 | United States Gypsum Co | Incendiary composition |
US2425740A (en) * | 1943-07-28 | 1947-08-19 | Smidth & Co As F L | Reduction of sulphates |
US2766102A (en) * | 1948-12-23 | 1956-10-09 | Exxon Research Engineering Co | Production of sulfur dioxide |
US2858191A (en) * | 1950-08-08 | 1958-10-28 | Basf Ag | Production of gases rich in sulfur dioxide suitable for working up into sulfuric acid |
US3729551A (en) * | 1971-01-07 | 1973-04-24 | Cons Coal Co | Conversion of calcium sulfate to calcium oxide and elemental sulfur |
ES478382A1 (en) * | 1978-04-02 | 1979-11-01 | Abdel Fattah Sabry Hosein Kame | Process for recovering sulphuric acid from natural gypsum or phospho-gypsum. |
-
1919
- 1919-04-17 DE DEV14668D patent/DE386295C/en not_active Expired
- 1919-08-09 DE DEV14876D patent/DE391602C/en not_active Expired
- 1919-08-09 DE DEV14875D patent/DE394362C/en not_active Expired
-
1920
- 1920-01-06 DE DEV15204D patent/DE391603C/en not_active Expired
- 1920-04-15 DE DE1920352125D patent/DE352125C/en not_active Expired
- 1920-07-08 FR FR519787D patent/FR519787A/en not_active Expired
- 1920-07-08 GB GB1970520A patent/GB149662A/en not_active Expired
-
1921
- 1921-04-09 GB GB1048921A patent/GB161581A/en not_active Expired
-
1922
- 1922-05-16 DE DER55913D patent/DE375872C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB149662A (en) | 1921-11-08 |
DE391602C (en) | 1924-03-08 |
DE391603C (en) | 1924-03-08 |
DE386295C (en) | 1923-12-07 |
DE375872C (en) | 1923-05-19 |
DE352125C (en) | 1922-04-21 |
GB161581A (en) | 1922-09-11 |
FR519787A (en) | 1921-06-15 |
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