DE442024C - Production of raw alkaline earth sulphides - Google Patents

Production of raw alkaline earth sulphides

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Publication number
DE442024C
DE442024C DESCH74799D DESC074799D DE442024C DE 442024 C DE442024 C DE 442024C DE SCH74799 D DESCH74799 D DE SCH74799D DE SC074799 D DESC074799 D DE SC074799D DE 442024 C DE442024 C DE 442024C
Authority
DE
Germany
Prior art keywords
alkaline earth
lumpy
production
sulphides
mixture
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
DESCH74799D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DESCH74799D priority Critical patent/DE442024C/en
Application granted granted Critical
Publication of DE442024C publication Critical patent/DE442024C/en
Expired legal-status Critical Current

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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

Description

Herstellung von Rohsulfiden der Erdalkalien. Es ist bekannt, daß zur Herstellung von Rohsulfiden der Erdalkalien Schwerspat, C ölestin oder Gips erst sehr fein gemahlen wird, um diesen mit einer erheblich größeren Menge Kohle zu mischen, als theoretisch not-«-endig ist. Dieses Gemisch wird gewöhnlich in einem Drehofen reduziert, der durch Generatorgase oder auch elektrisch geheizt wird. Nach diesem Verfahren gewinnt man aber nur eine Ausbeute von 65 bis höchstens 7o Prozent an wasserlöslicbein Sulfid.Production of crude alkaline earth sulphides. It is known that for Production of raw sulphides of the alkaline earths barite, C oilestine or gypsum was the first is ground very finely in order to mix it with a considerably larger amount of coal, than theoretically not - «- is ended. This mixture is usually made in a rotary kiln reduced, which is heated by generator gases or electrically. After this Process one gains only a yield of 65 to a maximum of 70 percent water-soluble sulfide.

Das vorliegende Verfahren besteht darin, daß man das natürliche oder künstlich gefällte Sulfat der Erdalkalien, wie Schwerspat, Cölestin oder Gips, in Stücke in Größe von Taubeneiern oder Erbsen verarbeitet. Das Sulfat besteht aus Stücken oder aus Stücken und Abfallpulver, das beim Zerschlagen der Stücke entsteht. Das Sulfat mischt man in dieser Sortierung mit Kohle der gleichen Sortierung. Daß das Sulfat und die Kohle nicht mehr fein gemahlen wird, ist ein wirtschaftlicher Vorteil.The present method consists in using the natural or Artificially precipitated sulphates of the alkaline earths, such as barite, cölestin or gypsum, in Pieces the size of pigeon eggs or peas processed. The sulfate consists of Pieces or from pieces and waste powder that is created when the pieces are smashed. The sulphate is mixed in this sorting with coal of the same sorting. That the sulfate and coal are no longer finely ground is an economical one Advantage.

An Kohle wird nur die theoretisch oder weniger als die theoretisch berechnete Menge dem Schwerspat, Cölestin, Gips oder dem künstlich gefällten Sulfat der Erdalkalien zugemischt, was ein weiterer wirtschaftlicher \,"orteil ist.Coal is only theoretical or less than theoretical calculated amount of barite, cölestin, gypsum or artificially precipitated sulfate mixed with the alkaline earths, which is a further economic advantage.

Dieses Gemisch aus Sulfat und Kohle bringt man kontinuierlich oder periodisch in einen elektrischen Lichtbogenofen, in dem es durch Gleich- oder Wechselstrom zur Sinterung oder zur Schmelze gebracht wird. Das erzeugte Sulfid kommt im Ofen weder mit glühenden Schamotten noch mit anderen Stoffen zusammen, sondern wird nur von seinem Ausgangsmaterial umhüllt.This mixture of sulfate and coal is brought continuously or periodically in an electric arc furnace, in which it is powered by direct or alternating current is brought to sintering or to melt. The sulphide produced goes into the furnace neither with glowing chamottes nor with other substances, but only becomes enveloped by its source material.

Nach dem vorliegenden Verfahren wird das ganze oder fast das ganze natürliche oder künstlich gefällte Erdalkalisulfat in eine @vasserlösliclie Substanz übergeführt.According to the present procedure, the whole or almost all of the natural or artificially precipitated alkaline earth sulfate in a water-soluble substance convicted.

Um eine leichtflüssige Sinterung oder Schmelze des Sulfids im Ofen zu haben, kann man geringe -Mengen von Erdalkalichlorid, Fluorverbindungen oder Alkalisulfaten dem Sulfat zusetzen.A light sintering or melting of the sulphide in the furnace to have, you can have small amounts of alkaline earth chloride, fluorine compounds or Add alkali sulfates to the sulfate.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Rohsulfiden der Erdalkalien durch Erhitzen von Erdalkalisulfat im Gemisch mit Kohle im .elektrischen Ofen, dadurch gekennzeichnet, daß man stückigen oder stückigen und pulverigen Schwerspat, Cölestin oder Gips mit der theoretisch oder weniger als der theoretisch berechneten Menge stückiger oder stückiger und pulveriger Kohle mischt und diese Mischung mit oder ohne Zusatz geringer Mengen an Erdalkalichlorid, Fluorverbindungen oder Alkalisulfaten im elektrischen Lichtbogenofen in Gleich- oder Wechselstrom zur Sinterung oder Schmelze bringt, wobei die Erhitzung derart vorgenommen wird, daß die Schmelze vom Ausgangsmaterial eingehüllt ist.PATENT CLAIM: Process for the production of raw sulphides of alkaline earths by heating alkaline earth sulfate in a mixture with carbon in an electric furnace, thereby characterized in that lumpy or lumpy and powdery barite, cölestin or plaster of paris with the theoretically calculated amount or less than the theoretically calculated amount Mixes lumpy or lumpy and powdery coal and this mixture with or without adding small amounts of alkaline earth chloride, fluorine compounds or alkali sulfates in the electric arc furnace in direct or alternating current for sintering or melting brings, the heating being carried out in such a way that the melt from the starting material is enveloped.
DESCH74799D 1925-07-15 1925-07-15 Production of raw alkaline earth sulphides Expired DE442024C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH74799D DE442024C (en) 1925-07-15 1925-07-15 Production of raw alkaline earth sulphides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH74799D DE442024C (en) 1925-07-15 1925-07-15 Production of raw alkaline earth sulphides

Publications (1)

Publication Number Publication Date
DE442024C true DE442024C (en) 1927-03-19

Family

ID=7440998

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH74799D Expired DE442024C (en) 1925-07-15 1925-07-15 Production of raw alkaline earth sulphides

Country Status (1)

Country Link
DE (1) DE442024C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004067493A1 (en) * 2003-01-17 2004-08-12 Jozef Verborgt Diols formed by ring-opening of epoxies
US7622541B2 (en) * 2003-01-17 2009-11-24 The United States Of America As Represented By The Secretary Of The Navy Polyurethane coating

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004067493A1 (en) * 2003-01-17 2004-08-12 Jozef Verborgt Diols formed by ring-opening of epoxies
US7432399B2 (en) * 2003-01-17 2008-10-07 The United States Of America As Represented By The Secretary Of The Navy Diols formed by ring-opening of epoxies
US7615604B2 (en) 2003-01-17 2009-11-10 The United States Of America As Represented By The Secretary Of The Navy Diols formed by ring-opening of epoxies
US7622541B2 (en) * 2003-01-17 2009-11-24 The United States Of America As Represented By The Secretary Of The Navy Polyurethane coating

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