DE300762C - - Google Patents
Info
- Publication number
- DE300762C DE300762C DENDAT300762D DE300762DA DE300762C DE 300762 C DE300762 C DE 300762C DE NDAT300762 D DENDAT300762 D DE NDAT300762D DE 300762D A DE300762D A DE 300762DA DE 300762 C DE300762 C DE 300762C
- Authority
- DE
- Germany
- Prior art keywords
- sodium
- sulfur
- bisulfate
- sulphide
- gases
- 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.)
- Active
Links
- 229910052717 sulfur Inorganic materials 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 12
- 229940100996 SODIUM BISULFATE Drugs 0.000 claims description 9
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M Sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 claims description 9
- 229910000342 sodium bisulfate Inorganic materials 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- GRVFOGOEDUUMBP-UHFFFAOYSA-N Sodium sulfide Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L Sodium thiosulphate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims 2
- 239000004133 Sodium thiosulphate Substances 0.000 claims 1
- 239000003610 charcoal Substances 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000006011 modification reaction Methods 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 229910052979 sodium sulfide Inorganic materials 0.000 claims 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 claims 1
- -1 Sodium sulfur Chemical compound 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance 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
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
Gegenstand der Erfindung ist ein Verfahren zur Darstellung von Schwefel aus Natriumbisulfat. Die Erfindung besteht darin, daß das in bekannter Weise aus Natriumsulfat (ζ. B. durch Glühen mit. Kohle in einem Flammofen) erhaltene Schwefelnatrium mit den Kalzinationsgasen behandelt wird, die bei der Herstellung des Neutralsulfats aus dem Bisulfat bei dem Kalzinationsprozeß gebildet werden. Zur Ausführung des Verfahrens ■ insbesondere geeignet ist ' ein Kohlenstoff enthaltendes Natriumbisulfat, zweckmäßig. Natriumbisulfat gemäß Patent 263120, welches unmittelbar zu Natriumsulfat kalzinierbar ist, wobei schweflige Säure und. Schwefelsäure in Gasform ausgetrieben werden, welche Gase bisher eine Verwendung nicht gefunden haben. Diese Kalzinationsgase werden nun gemäß der Erfindung zur Gewinnung des 'Schwefels aus dem Sulfat bzw. aus dem nach bekanntem Verfahren gewonnenen Schwefelnatrium verwendet.The invention relates to a method for the preparation of sulfur from Sodium bisulfate. The invention consists in that in a known manner from sodium sulfate (ζ. B. by glowing with. Coal Sodium sulfur obtained in a flame furnace) treated with the calcination gases is used in the production of the neutral sulfate from the bisulfate in the calcination process are formed. A is particularly suitable for carrying out the method Sodium bisulfate containing carbon is useful. Sodium bisulfate according to patent 263120, which leads directly to sodium sulfate is calcinable, with sulphurous acid and. Sulfuric acid are expelled in gaseous form, which gases have so far not been used. These calcination gases are now used according to the invention Extraction of the 'sulfur from the sulphate or from the one obtained by known processes Sulfur sodium used.
Das Verfahren gemäß der Erfindung kann in der Art ausgeführt werden, daß das schwarze Natriumbisulfat gemäß Patent 263120 kalziniert wird. Aus dem durch die Kalzinatiori erhaltenen Neutralsulfat wird in bekannter Weise Schwefelnatrium hergestellt und die Lösung von Schwefelnatrium mit dem Kondensat der Kalziniergase des vorbeschriebenen . Kalzinationsverfahrens gefällt, wobei durch Überschuß an schwefliger Säure desThe method according to the invention can be carried out in such a way that the black sodium bisulfate is calcined according to patent 263120. From the through the The neutral sulphate obtained calcined is produced in a known manner sodium sulphide and the solution of sodium sulphide with the condensate of the calcining gases of the above . Calcination process precipitated, with the excess of sulphurous acid des
• Kondensats erreichbar ist, daß gebildeter.• Condensate is attainable that formed.
Schwefelwasserstoff gleich in Schwefel umgesetzt bzw. die Bildung von Schwef elwasser-. stoff vermieden wird, also ein Verlust an Schwefel nicht eintritt. Aus diesem Grunde empfiehlt es sich, bei Ausführung des Verfahrens die. Schwefelnatriumlösung in das Kondensat einzutragen, wodurch erreicht wird, daß die Ausfällung des Schwefels stets bei Anwesenheit eines Überschußes an schwefliger Säure vor sich geht.Hydrogen sulfide immediately converted into sulfur or the formation of sulfur elwasser-. substance is avoided, so a loss of sulfur does not occur. For this reason it is advisable to use the. Sodium sulfur solution into the Enter condensate, whereby it is achieved that the precipitation of the sulfur always takes place in the presence of an excess of sulphurous acid.
Sollte fallweise der Gehalt des Kondensats an Schwefelsäure für die Fällung nicht ausreichend sein, so wird das Kondensat mit Natriumbisulfat bzw. einer solchen Lösung anstatt. Schwefelsäure versetzt.If, in some cases, the sulfuric acid content of the condensate is insufficient for the precipitation the condensate with sodium bisulfate or such a solution instead of. Sulfuric acid added.
Die beschriebene Ausführungsform des Verfahrens läßt sich etwa durch folgende Gleichung schematisch ausdrücken:The embodiment of the method described can be implemented, for example, as follows Expressing the equation schematically:
2 Na2S+ SO2+ 2 H, SO4 2 Na 2 S + SO 2 + 2 H, SO 4
wobei Schwefel quantitativ ausfällt.whereby sulfur precipitates quantitatively.
Das Verfahren zur Gewinnung von Schwefel aus Natriumbisulfat gemäß der Erfindung kann .auch in der Art ausgeführt werden, daß die Schwefelnatriumlauge, anstatt wie früher mit den Kondensaten der Kalzinierungsgase behandelt zu werden, in Absorptionsapparaten, z. B. Absorptionstürmen, mit den Kalzinierungsgäsen unmittelbar in Reaktion gebracht wird. Es entsteht hier gemäß- der nachstehenden sehematisch'en Gleichung 1 Natriumthiosulfat als Zwischenprodukt, welches gemäß der nachstehenden schematischen Gleichung 2 mit der entsprechenden Schwefelnatriummenge versetzt und mit Säure bzw. anstatt mit Satire zweckmäßig mit Natriumbisulfatlösung gefällt wird, wodurch der Schwefel desThe process for the recovery of sulfur from sodium bisulfate according to the invention can also be carried out in such a way that the sodium sulphide solution instead of how to be treated earlier with the condensates of the calcination gases, in Absorption apparatus, e.g. B. absorption towers, with the calcination gases immediately is brought into reaction. It arises here in accordance with the following shemematicals Equation 1 Sodium thiosulfate as an intermediate, which is prepared according to the following Schematic equation 2 with the corresponding amount of sodium sulphide and precipitated with acid or, instead of with satire, expediently with sodium bisulfate solution is, whereby the sulfur of the
Claims (2)
2. -Na, S2 θ" ψ:2 Na:,S*-F 3 H, SO4 . -'1.2 Na 2 S + 3 SO 2. == 2 Na 2 S 2 O 3 + S.
2. -Na, S 2 θ "ψ : 2 Na:, S * -F 3 H, SO 4. - '
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE300762C true DE300762C (en) |
Family
ID=554719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT300762D Active DE300762C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE300762C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3206177A1 (en) * | 1982-02-20 | 1983-08-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Process for the production of a preform from which optical fibres can be drawn |
-
0
- DE DENDAT300762D patent/DE300762C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3206177A1 (en) * | 1982-02-20 | 1983-08-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Process for the production of a preform from which optical fibres can be drawn |
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