DE560461C - Processing of products containing alkaline earth sulfides - Google Patents

Processing of products containing alkaline earth sulfides

Info

Publication number
DE560461C
DE560461C DEI37009D DEI0037009D DE560461C DE 560461 C DE560461 C DE 560461C DE I37009 D DEI37009 D DE I37009D DE I0037009 D DEI0037009 D DE I0037009D DE 560461 C DE560461 C DE 560461C
Authority
DE
Germany
Prior art keywords
alkaline earth
processing
products containing
containing alkaline
earth sulfides
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
DEI37009D
Other languages
German (de)
Inventor
Dr Ernst Jaenecke
Dr Hermann Klippel
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI37009D priority Critical patent/DE560461C/en
Application granted granted Critical
Publication of DE560461C publication Critical patent/DE560461C/en
Expired legal-status Critical Current

Links

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
    • C01B17/42—Sulfides or polysulfides of magnesium, calcium, strontium, or barium
    • C01B17/44—Sulfides or polysulfides of magnesium, calcium, strontium, or barium by reduction of sulfates

Landscapes

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

Description

Verarbeitung von Erdalkalisulfide enthaltenden Produkten In der Patentschrift 535 648 ist ein Verfahren zur Verarbeitung von Salpetererden beschrieben, bei dem man auf das zu verarbeitende Material anstatt Wasser bzw. einer Auslaugeflüssigkeit Wasserdampf einwirken läßt. hach dem Verfahren des zugehörigen Zusatzpatents 558 466 werden an Stelle von Salpetererden Alkalisulfide enthaltende Produkte, z. B. bei der Reduktion von Alkalisulfaten mittels Kohle erhaltene Rohschmelzen, gegebenenfalls nach Vorwärmung auf etwa ioo° und/oder unter Anwendung der in den Zusatzpatenten 537 607 und 541 626 beschriebenen Vorrichtungen und Ausführungsformen mit Wasserdampf behandelt.Processing of products containing alkaline earth sulfides Patent 535,648 describes a process for processing nitric earth, in which the material to be processed is allowed to act on water vapor instead of water or a leaching liquid. After the process of the associated additional patent 558 466, products containing alkali metal sulfides are used instead of nitric earths, e.g. B. obtained in the reduction of alkali sulfates by means of coal crude melts, optionally after preheating to about 100 ° and / or using the devices and embodiments described in the additional patents 537 607 and 541 626 treated with steam.

Es wurde gefunden, daß man in gleicher Weise auch lösliche Erdalkalisulfide enthaltende Massen verarbeiten kann. Auch hier ist es zweckmäßig, zur Erzielung einer möglichst hochkonzentrierten Lauge die auszulaugenden Produkte vor der Behandlung mit Wasserdampf auf Temperaturen über ioo° zu erwärmen und zwecks vollständiger Auslaugung gleichzeitig auf das zu verarbeitende Material wenig heißes Wasser einwirken zu lassen.It has been found that soluble alkaline earth metal sulfides can also be used in the same way can process containing masses. Again, it is useful to achieve the products to be leached prior to treatment using a lye that is as highly concentrated as possible to be heated with steam to temperatures above 100 ° and for the purpose of more complete Leaching act on the material to be processed at the same time with little hot water allow.

Beispiel Aus einer durch Reduktion von B.ariumsulfat mit Kohle erhaltenen Röhschmelze mit einem Gehalt von etwa 70% Bariumsulfid wird durch Auslaugen mit Wasserdampf und Wasser in der angegebenen Weise eine heiße konzentrierte Lösung mit einem Gehalt von etwa 350/0 Bariumsulfid gewonnen. Bei dieser Behandlung werden 95010 des insgesamt vorhandenen Bariumsulfids ausgelaugt. Aus der erhaltenen Flüssigkeit scheiden sich beim Abkühlen auf gewöhnliche Temperatur etwa 85% des insgesamt vorhandenen Bariumsulfids in Form eines basischen Bariumsulfhydrates ab. Der Rest ist in der Mutterlauge enthalten. Wird der nach dem Auslaugen der Rohschmelze verbleibende Rückstand einer erneuten Dampf-Wasser-Behandlung unterworfen, so erhält man eine Lauge mit einem Gehalt von 3% Bariumsulfid. Bei einer Gesamtauslaugung von 98 4/o Bariumsulfid verhält sich die Gesamtmenge der bei der ersten Behandlung erhaltenen konzentrierten Lauge zu der Menge der verdünnten Waschlauge wie 3,5;1.EXAMPLE A hot, concentrated solution with a barium sulfide content of about 350/0 barium sulfide is obtained by leaching with steam and water in the specified manner from a crude melt with a content of about 70% barium sulfide obtained by reducing B. During this treatment, 95010 of the total barium sulfide present is leached out. On cooling to the usual temperature, about 85% of the total barium sulfide present separates from the liquid obtained in the form of a basic barium sulfhydrate. The rest is contained in the mother liquor. If the residue remaining after the crude melt has been leached out is subjected to another steam-water treatment, a lye with a content of 3% barium sulfide is obtained. With a total leaching rate of 98 4 / o barium sulphide, the ratio of the total amount of the concentrated lye obtained in the first treatment to the amount of the diluted washing lye is 3.5; 1.

Claims (1)

PATENTANSPRUCH Weiterbildung des Verfahrens nach Patent 558 466, dadurch gekennzeichnet, daß lösliche Erdalkalisulfide enthaltende Produkte mit Wasserdampf behandelt werden.PATENT CLAIM Further development of the method according to patent 558 466, thereby characterized in that soluble alkaline earth metal sulfides containing products with water vapor be treated.
DEI37009D 1929-02-08 1929-02-08 Processing of products containing alkaline earth sulfides Expired DE560461C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI37009D DE560461C (en) 1929-02-08 1929-02-08 Processing of products containing alkaline earth sulfides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI37009D DE560461C (en) 1929-02-08 1929-02-08 Processing of products containing alkaline earth sulfides

Publications (1)

Publication Number Publication Date
DE560461C true DE560461C (en) 1932-10-03

Family

ID=7189409

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI37009D Expired DE560461C (en) 1929-02-08 1929-02-08 Processing of products containing alkaline earth sulfides

Country Status (1)

Country Link
DE (1) DE560461C (en)

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