DE568159C - Process for the production of cadmium sulphides - Google Patents

Process for the production of cadmium sulphides

Info

Publication number
DE568159C
DE568159C DEK119396D DEK0119396D DE568159C DE 568159 C DE568159 C DE 568159C DE K119396 D DEK119396 D DE K119396D DE K0119396 D DEK0119396 D DE K0119396D DE 568159 C DE568159 C DE 568159C
Authority
DE
Germany
Prior art keywords
cadmium
production
hydrogen sulfide
sulfide
sulphides
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
Application number
DEK119396D
Other languages
German (de)
Inventor
Dr Friedrich Ruesberg
Dr Walter Schoen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kali Chemie AG
Original Assignee
Kali Chemie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kali Chemie AG filed Critical Kali Chemie AG
Priority to DEK119396D priority Critical patent/DE568159C/en
Application granted granted Critical
Publication of DE568159C publication Critical patent/DE568159C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G11/00—Compounds of cadmium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Glass Compositions (AREA)
  • Paper (AREA)

Description

Verfahren zur Herstellung von Cadmiumsulfiden Cadmiumsulfide, die als Pigmentfarbstoffe Verwendung finden, werden hergestellt durch Fällung von Cadmiumsalzlösungen mit Schwefelwasserstoff oder Alkali- bzw. Erdalkalisulfiden bzw. durch Erhitzen von Cadmiumcarbonat mit elementarem Schwefel.Process for the production of cadmium sulphides Cadmium sulphides, the Used as pigment dyes are produced by the precipitation of cadmium salt solutions with hydrogen sulfide or alkali or alkaline earth sulfides or by heating of cadmium carbonate with elemental sulfur.

Es wurde nun die überraschende Feststellung gemacht, daß man festes Cadmiumcarbonat durch Behandlung mit gasförmigem Schwefelwasserstoff oder solchen enthaltenden Gasen sowohl bei gewöhnlicher als auch bei erhöhter Temperatur unmittelbar in Cadmiumsulfid überführen kann.The surprising discovery has now been made that one solid Cadmium carbonate by treatment with gaseous hydrogen sulfide or such containing gases both at ordinary and at elevated temperature immediately can convert into cadmium sulfide.

Es ist bekannt, daß beim Überleiten von Schwefelwasserstoff über Cadmiumchlorid in der Hitze Cadmiumsulfid gebildet wird. Die Umsetzung erfolgt jedoch hierbei außerordentlich träge. Ausführungsbeispiele i. über ioo g festes Cadmiumearboriat wurden unter Umrühren bei gewöhnlicher Temperatur (2o0 C) 15 1 Schwefelwasserstoff während der Dauer von e/2 Stunden geleitet. Es wurden 87 g orangefarbiges Cadmiumsulfid mit einem Gehalt von 99,1 % CdS erhalten.It is known that when hydrogen sulfide is passed over cadmium chloride cadmium sulfide is formed in the heat. However, the implementation is extraordinary sluggish. Embodiments i. Over 100 g of solid cadmium arborate were added with stirring at ordinary temperature (2o0 C) 15 l of hydrogen sulfide for the duration of e / 2 hours headed. There were 87 grams of orange cadmium sulfide with a grade obtained from 99.1% CdS.

Ein unter den gleichen Bedingungen durchgeführter Versuch unter Verwendung von ioo g Cadmiumchlorid ergab ein Produkt, welches nur einen Gehalt von 2,0 % CdS aufwies.An experiment carried out under the same conditions using 100 g of cadmium chloride gave a product which only had a CdS content of 2.0% exhibited.

2. Über ioo g festes Cadmiumcarbonat, welches in einem beheizten Rührapparat auf einer Temperatur von 20o° C gehalten wurde, wurden 151 Schwefelwasserstoff 2 Stunden lang geleitet. Es wurden 85 g Cadmiumsulfid mit einem Gehalt von 99,3 % CdS erhalten.2. About 100 g of solid cadmium carbonate, which in a heated stirrer was kept at a temperature of 20o ° C, 151 hydrogen sulfide 2 Led for hours. There were 85 g of cadmium sulfide with a content of 99.3% CdS received.

Der gleiche Versuch wurde bei,einer Temperatur von 4500 C durchgeführt. Das bei höherer Temperatur hergestellte Produkt zeigte eine hellere Farbe als das bei niederer Temperatur hergestellte Produkt.The same experiment was carried out at a temperature of 4500.degree. The product made at higher temperature showed a lighter color than that product made at low temperature.

Wurde Cadmiumchlorid bei höheren Temperaturen, z. B. bei 200° C, in der gleichen Weise und während der gleichen Versuchsdauer mit Schwefelwasserstoff behandelt, so wurde ein Produkt mit nur 6,5 % CdS erhalten.Has cadmium chloride been used at higher temperatures, e.g. B. at 200 ° C, in in the same way and for the same duration of the experiment with hydrogen sulfide treated, a product with only 6.5% CdS was obtained.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Cadmiumsulfiden aus Cadmiumcarbonat, dadurch gekennzeichnet, daß man über festes Cadmiumcarbonat bei gewöhnlicher oder erhöhter Temperatur gasförmigen Schwefelwasserstoff oder solchen enthaltende Gase leitet.PATENT CLAIM: Process for the production of cadmium sulfides from Cadmium carbonate, characterized in that solid cadmium carbonate is used normal or elevated temperature gaseous hydrogen sulfide or such containing gases conducts.
DEK119396D 1931-03-10 1931-03-10 Process for the production of cadmium sulphides Expired DE568159C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK119396D DE568159C (en) 1931-03-10 1931-03-10 Process for the production of cadmium sulphides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK119396D DE568159C (en) 1931-03-10 1931-03-10 Process for the production of cadmium sulphides

Publications (1)

Publication Number Publication Date
DE568159C true DE568159C (en) 1933-01-14

Family

ID=7244328

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK119396D Expired DE568159C (en) 1931-03-10 1931-03-10 Process for the production of cadmium sulphides

Country Status (1)

Country Link
DE (1) DE568159C (en)

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