DE600623C - Process for the simultaneous extraction of calcium aluminate cement and phosphorus in a shaft furnace or other furnace - Google Patents

Process for the simultaneous extraction of calcium aluminate cement and phosphorus in a shaft furnace or other furnace

Info

Publication number
DE600623C
DE600623C DEK95243D DEK0095243D DE600623C DE 600623 C DE600623 C DE 600623C DE K95243 D DEK95243 D DE K95243D DE K0095243 D DEK0095243 D DE K0095243D DE 600623 C DE600623 C DE 600623C
Authority
DE
Germany
Prior art keywords
furnace
phosphorus
calcium aluminate
aluminate cement
simultaneous extraction
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
DEK95243D
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.)
WLADIMIR KYBER DIPL ING
Original Assignee
WLADIMIR KYBER DIPL ING
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 WLADIMIR KYBER DIPL ING filed Critical WLADIMIR KYBER DIPL ING
Priority to DEK95243D priority Critical patent/DE600623C/en
Application granted granted Critical
Publication of DE600623C publication Critical patent/DE600623C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous cements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Furnace Details (AREA)

Description

Verfahren zur gleichzeitigen Gewinnung von Tonerdezement und Phosphor im Schachtofen oder anderen Öfen Bei der bekannten Herstellung von Phosphor aus Rohphosphaten und Kohlenstoff wird eine Schlacke erhalten, die aus sauren Calciumsilicaten besteht. Diese Schlacke bildet ein lästiges Nebenerzeugnis, das nicht weiter verwertet werden kann. Um die bei der Phosphorherstellung anfallende Schlacke nutzbar machen zu können, ist schon vorgeschlagen worden, bei dem Schmelzprozeß Kieselsäure teilweise oder auch ganz durch Ton zu ersetzen. Nach dieser Arbeitsweise erhält man eine Schlacke, die unter Umständen latenthydraulische Eigenschaften besitzt und ähnlich wie die Hochofexischlacke auf Hochofenzement verarbeitet werden kann.Process for the simultaneous production of calcium aluminate cement and phosphorus in a shaft furnace or other furnaces In the known production of phosphorus from rock phosphates and carbon, a slag is obtained which consists of acidic calcium silicates. This slag forms an annoying by-product that cannot be used any further. In order to be able to utilize the slag produced in the production of phosphorus, it has already been proposed to replace some or all of the silica with clay in the melting process. After this procedure, we obtain a slag has the latent hydraulic properties and may be processed ähnli ch as the Hochofexischlacke on blast furnace cement.

Es wurde nun gefunden, daß man bei der Rohphosphatschmelze unmittelbar eine Schlacke, die ohne weitere Verarbeitung ein hochwertiger Zement ist, dadurch erschmelzen kann, daß man die Kieselsäure durch tonerdehaltige Materialien, wie z. B. Bauxit, ersetzt. Man erhält auf diese Weise eine Schlacke, welche infolge ihres hohen Gehaltes an Aluminiumoxyd einen hochwertigen Tonerdezement (Schmelzzement) darstellt.It has now been found that the raw phosphate melt can be used directly a slag that is a high-quality cement without further processing can melt that the silica through alumina materials, such as z. B. Bauxite replaced. In this way, a slag is obtained, which as a result high-quality calcium aluminate cement (molten cement) due to its high content of aluminum oxide represents.

Den Bauxit kann man auch teilweise oder - falls es die Zusammensetzung der Rohstoffe erlaubt - auch ganz durch Rohphosphate ersetzen, in welchen die Phosphorsäure nicht an Kalk, sondern an Aluminiumoxyd gebunden ist.The bauxite can also be used partially or - if it is the composition the raw materials allowed - also replace entirely by rock phosphates, in which the phosphoric acid is not bound to lime, but to aluminum oxide.

Die Schmelze kann man entweder im Schachtgebläseofen oder in einem elektrischen Ofen durchführen, wobei im ersteren Falle als Nebenprodukt ein hochwertiges Generatorengas mitgewonnen wird.The melt can either be in a shaft blower furnace or in a carry out electric furnace, in the former case as a by-product a high quality Generator gas is also recovered.

Claims (1)

PATENTANSPRUCFI: Verfahren zur gleichzeitigen Gewinnung von Tonerdezement und Phosphor im Schachtofen oder anderen Ofen, dadurch gekennzeichnet, daß man Phosphate mit einer entsprechenden Menge tonerdehaltigen Materials in Gegenwart einer für den Reduktionsprozeß des Phosphors erforderlichen Kohlenstoffmenge schmelzt.PATENT CLAIM: Process for the simultaneous extraction of calcium aluminate cement and phosphorus in a shaft furnace or other furnace, characterized in that phosphates with an appropriate amount of alumina material in the presence of a for the reduction process of phosphorus melts the amount of carbon required.
DEK95243D 1925-08-05 1925-08-05 Process for the simultaneous extraction of calcium aluminate cement and phosphorus in a shaft furnace or other furnace Expired DE600623C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK95243D DE600623C (en) 1925-08-05 1925-08-05 Process for the simultaneous extraction of calcium aluminate cement and phosphorus in a shaft furnace or other furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK95243D DE600623C (en) 1925-08-05 1925-08-05 Process for the simultaneous extraction of calcium aluminate cement and phosphorus in a shaft furnace or other furnace

Publications (1)

Publication Number Publication Date
DE600623C true DE600623C (en) 1934-07-27

Family

ID=7238083

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK95243D Expired DE600623C (en) 1925-08-05 1925-08-05 Process for the simultaneous extraction of calcium aluminate cement and phosphorus in a shaft furnace or other furnace

Country Status (1)

Country Link
DE (1) DE600623C (en)

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