AT29276B - Process for the preparation of zinc sulphide. - Google Patents
Process for the preparation of zinc sulphide.Info
- Publication number
- AT29276B AT29276B AT29276DA AT29276B AT 29276 B AT29276 B AT 29276B AT 29276D A AT29276D A AT 29276DA AT 29276 B AT29276 B AT 29276B
- Authority
- AT
- Austria
- Prior art keywords
- zinc sulphide
- preparation
- zinc
- alkali
- sulphide
- Prior art date
Links
- 239000005083 Zinc sulfide Substances 0.000 title claims description 5
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 title claims description 5
- 238000000034 method Methods 0.000 title description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims 1
- 150000001342 alkaline earth metals Chemical class 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000003513 alkali Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Description
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Rührwerk beständig umlaut, um zu verhindern, dass das fein verteilte, suspendierte Schwefelzink sich zu Boden setzt. Es ist also während des Verlaufs des Prozesses gleichzeitig Zink, Ätznatron und Schwefelnatrium im Behälter vorhanden. Der Zusatz von Schwefelalkali wird hiebei so geregelt, dass seine Menge gerade zur Bildung des Schwefelzinks ausreicht, damit ein Überschuss vermieden wird, der, wie früher bemerkt, schädlich ist.
Nach beendeter Reaktion lässt man nicht den ganzen Inhalt des Gefässes ab, sondern nur
EMI2.1
indem nur Schwefelalkali und Zink zur Fortsetzung der Reaktion hinzugesetzt zu werden braucht.
Das vorliegende Verfahren erzeugt ein sehr feines weisses Schwefelzink, welches sich ausserordentlich weich anfühlt und eine grössere Deckkraft besitzt, als das nach den bisher bekannten Verfahren erhaltene Produkt ; ausserdem, sind die Lösungen von Alka1ihydrat, die bieboi entstehen, sehr hochprozentig, z. B. wird eine Ätznatronlösung von 350 Be. bei diesem Verfahren direkt erhalten.
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Agitator constantly umlaut to prevent the finely divided, suspended zinc sulphide from settling on the ground. So zinc, caustic soda and sulphurous sodium are simultaneously present in the container during the course of the process. The addition of sulphurous alkali is regulated in such a way that its amount is just sufficient for the formation of the zinc sulphide, so that an excess is avoided, which, as we have previously observed, is harmful.
After the reaction has ended, the entire contents of the vessel are not drained, only
EMI2.1
in that only alkali sulfur and zinc need be added to continue the reaction.
The present process produces a very fine white zinc sulphide which is extremely soft to the touch and has a greater covering power than the product obtained by the previously known processes; In addition, the solutions of alkali hydrate that arise bieboi are very high percentage, z. B. a caustic soda solution of 350 Be. obtained directly with this procedure.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1904171872D DE171872C (en) | 1904-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT29276B true AT29276B (en) | 1907-07-25 |
Family
ID=5689649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT29276D AT29276B (en) | 1904-03-22 | 1905-02-16 | Process for the preparation of zinc sulphide. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT29276B (en) |
-
1905
- 1905-02-16 AT AT29276D patent/AT29276B/en active
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