DE305103C - - Google Patents
Info
- Publication number
- DE305103C DE305103C DENDAT305103D DE305103DA DE305103C DE 305103 C DE305103 C DE 305103C DE NDAT305103 D DENDAT305103 D DE NDAT305103D DE 305103D A DE305103D A DE 305103DA DE 305103 C DE305103 C DE 305103C
- Authority
- DE
- Germany
- Prior art keywords
- calcium
- sulfhydrate
- barium
- sulfate
- production
- 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
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 3
- IELPSGPHQCRVQW-UHFFFAOYSA-L barium(2+);sulfanide Chemical compound [SH-].[SH-].[Ba+2] IELPSGPHQCRVQW-UHFFFAOYSA-L 0.000 claims description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 235000011132 calcium sulphate Nutrition 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- OTMNKCRTGBGNPN-UHFFFAOYSA-N sulfanylidenebarium Chemical compound [Ba]=S OTMNKCRTGBGNPN-UHFFFAOYSA-N 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
- C01B17/16—Hydrogen sulfides
- C01B17/164—Preparation by reduction of oxidic sulfur compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
Die bisher üblichen Verfahren zur Herstellung von Schwefelwasserstoff benutz! en Schwefelcalcium als Ausgangsmaterial, .welches auf geeignete Weise, z. B. durch starke Säuren, Kohlendioxyd, Clormagnesium, zersetzt wild. Hierbei gehen die Verunreinigungen mit in die entstehenden Nebenprodukte, ζ. Β. Mg (OH)2 und Ca Cl2 bei Verwendung von Clormagnesiumlauge, oder Ca CO3 bei Verwendung von Kohlendioxyd. Wird das in Wasser unlösliche Schwefelcalcium erst in wasserlösliches Calciumsulfhydrat verwandelt, so können die Verunreinigungen des Schwefelcalciums vorher ausgeschieden werden, und die Nebenprodukte werden rein erhalten. Die Umsetzung des Calciumsulfhydrats geht, weil in wäßriger Lösung, schnell und glatt vor sich; leider ist jedoch seine Herstellung, z. B. durch Einleiten von Schwefelwasserstoff in die wäßrige Suspension von Schwefelcalcium, sehr zeitraubend und schwierig.Use the previously customary processes for the production of hydrogen sulfide! en calcium sulfur as a starting material, .which in a suitable manner, e.g. B. by strong acids, carbon dioxide, magnesium chloride, decomposes wildly. The impurities are included in the by-products, ζ. Β. Mg (OH) 2 and Ca Cl 2 when using Clormagnesium Lye, or Ca CO 3 when using carbon dioxide. If the water-insoluble calcium sulfate is first converted into water-soluble calcium sulfhydrate, the impurities in the calcium sulfate can be eliminated beforehand and the by-products are obtained in pure form. The conversion of calcium sulfhydrate takes place quickly and smoothly because in aqueous solution; unfortunately, however, its manufacture, e.g. B. by introducing hydrogen sulfide into the aqueous suspension of calcium sulfide, very time consuming and difficult.
Nach vorliegendem Verfahren geht nun die Herstellung von Calciumsulfhydrat in einfacher Weise vor sich, wenn man fein gemahlenen Gips oder Anhydrit oder anderweitig, z. B. durch Fällung in fein verteiltem Zustande, erhaltenes Calciumsulfat in eine Bariumhydrosulfidlösung einträgt, wobei ständig gerührt wird: .According to the present process, the production of calcium sulfhydrate is now easier Be aware of when you use finely ground plaster of paris or anhydrite or otherwise, e.g. B. calcium sulphate obtained by precipitation in a finely divided state in a barium hydrosulphide solution enters, with constant stirring:.
Ca S O4 + Ba (S H)2 = Ca (S H)2 + Ba S O4.Ca SO 4 + Ba (SH) 2 = Ca (SH) 2 + Ba SO 4 .
Das auf geeignete Weise abgetrennte Bariumsulfat wird wieder in bekannter Weise zu1 Schwefelbarium reduziert, welches ieicht in üblicher Art wieder in Bariumhydrosulfid übergeführt wird.The barium sulfate separated off in a suitable manner is again reduced in a known manner to 1 sulfur barium, which is easily converted back into barium hydrosulfide in the usual way.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE305103C true DE305103C (en) |
Family
ID=558650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT305103D Active DE305103C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE305103C (en) |
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0
- DE DENDAT305103D patent/DE305103C/de active Active
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