AT35682B - Method and apparatus for the preparation of alkali sulfides from alkali sulfates. - Google Patents
Method and apparatus for the preparation of alkali sulfides from alkali sulfates.Info
- Publication number
- AT35682B AT35682B AT35682DA AT35682B AT 35682 B AT35682 B AT 35682B AT 35682D A AT35682D A AT 35682DA AT 35682 B AT35682 B AT 35682B
- Authority
- AT
- Austria
- Prior art keywords
- alkali
- preparation
- mass
- furnace
- sulfides
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 3
- 239000003513 alkali Substances 0.000 title 2
- 150000004763 sulfides Chemical class 0.000 title 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 title 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Inorganic materials O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
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Speisevorrichtung kontinuierlich vorgenommen werden, welch letztere an der Mündung A angebracht wird und in der schematischen Figur nicht dargestellt ist, da deren Bauart bereits be- kam. L ist..
Die Vorteile des vorliegenden Verfahrens gegenüber denjenigen, bei welchen die elektrische Erhitzung on besonders vorbereiteten Gemengen von Sulfat und Kohle vorgenommen wird, sind folgende.
1. Der Verbrauch und die Regelung der elektrischen Energie sind auf die Erzielung des beständigen Glühens einer Kohlensäule von praktisch unveränderlicher, durch den Querschnitt und die Höhe des Ofens bestimmter Grösse, also auf das gerade Notwendigste beschränkt. Da nach der Inbetriebsetzung des Ofens, die Erhitzung eine kontinuierliche und beständige ist, werden die mit der unterbrochenen Erhitzung aufeinanderfolgender Chargen, welche bei den auf den Gebrauch von besonders vorbereiteten Gemengen begründeten Verfahren erforderlich ist.
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3. Die reduzierende Reaktion findet in quantitativer Weise statt und der Kohlenverhral1ch entspricht genau dem in dem Sulfat enthaltenen Sauerstoff.
4. Es werden alle sekundären von der Temperaturüberschreitung abhängigen Reaktionen vermieden ; die Analyse der aus dem Ofen ausströmenden Gase kann als Kontrolle dienen und beweist, dass dieselben beinahe gänzlich aus Kohlensäure mit bloss Spuren von schwefeliger Säure bestehen.
Nur wenn die Temperatur eine zu hohe ist, ergibt sich die Bildung von Schwefelsäure- anhydrid durch Dissociation des Sulfats ; hiergegen trifft man sofort Massnahmen, indem man die Stärke des Stromes vermittelst der beweglichen Elektrode zweckmässig regelt. Dagegen ist
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Lichtbogen-Ofen stets vorhanden und unvermeidlich und zwar infolge der Schwierigkeit, eine gleiclllssige Erhitzung der Masse zu erreichen.
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brachten Elektroden.
7. Die Lebensdauer des Ofens bezogen auf die Leistung wird bedeutend erhöht, da es nicht
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mitgerissenen Teilen mittelst einer besonderen, je nach dem System des Ofens an der Seite oder m der Mitte angebrachten Sammelkammer wieder nutzbar zu machen. Dadurch. dass die ganze
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Feed device are made continuously, which latter is attached to the mouth A and is not shown in the schematic figure, since its design was already received. L is ..
The advantages of the present process over those in which the electrical heating of specially prepared batches of sulfate and coal is carried out are as follows.
1. The consumption and regulation of the electrical energy are limited to the achievement of the constant glow of a column of coal of practically unchangeable size, determined by the cross-section and the height of the furnace, that is to the bare essentials. Since the heating is continuous and constant after the furnace has been put into operation, the interrupted heating of successive batches, which is necessary in the processes based on the use of specially prepared batches, becomes
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3. The reducing reaction takes place in a quantitative manner and the carbon consumption corresponds exactly to the oxygen contained in the sulphate.
4. All secondary reactions dependent on the excess temperature are avoided; the analysis of the gases emanating from the furnace can serve as a control and shows that they consist almost entirely of carbonic acid with only traces of sulphurous acid.
Only when the temperature is too high does the formation of sulfuric anhydride result from dissociation of the sulfate; Measures are taken immediately against this by appropriately regulating the strength of the current by means of the movable electrode. Against it is
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Arc furnace always present and unavoidable, due to the difficulty of achieving uniform heating of the mass.
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brought electrodes.
7. The lifespan of the furnace in terms of performance is significantly increased since it is not
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to make the carried away parts usable again by means of a special collecting chamber attached to the side or in the middle, depending on the system of the furnace. Thereby. that the whole
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Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT35682T | 1907-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT35682B true AT35682B (en) | 1908-12-28 |
Family
ID=3552310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT35682D AT35682B (en) | 1907-03-01 | 1907-03-01 | Method and apparatus for the preparation of alkali sulfides from alkali sulfates. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT35682B (en) |
-
1907
- 1907-03-01 AT AT35682D patent/AT35682B/en active
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