DE327054C - Process for the treatment of Thomas or Siemens Martin slag - Google Patents

Process for the treatment of Thomas or Siemens Martin slag

Info

Publication number
DE327054C
DE327054C DE1919327054D DE327054DD DE327054C DE 327054 C DE327054 C DE 327054C DE 1919327054 D DE1919327054 D DE 1919327054D DE 327054D D DE327054D D DE 327054DD DE 327054 C DE327054 C DE 327054C
Authority
DE
Germany
Prior art keywords
thomas
slag
treatment
iron
hydrochloric acid
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
DE1919327054D
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.)
EISEN und STAHLWERK HOESCH AKT
Original Assignee
EISEN und STAHLWERK HOESCH AKT
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 EISEN und STAHLWERK HOESCH AKT filed Critical EISEN und STAHLWERK HOESCH AKT
Application granted granted Critical
Publication of DE327054C publication Critical patent/DE327054C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B5/00—Thomas phosphate; Other slag phosphates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/10—Halides
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C3/00—Manufacture of wrought-iron or wrought-steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Fertilizers (AREA)

Description

Verfahren zur Behandlung von oder Siemensmartinschlacke. Glühende Thomas- oder Siernensmartinschlacke wird bei. einer Temperatur von. 780 bis 88o° C Salzsäuredämpfen ausgeset'zt,. wobei Eisenchlorid übergeht, während Kalziumphosphat und Kieselsäure im Rückstand bleiben. Die entweichenden Ei'senchloriddämpfe werden in Wasser aufgefangen und bei einer Temperatur von Zoo bis 230° C in Eisenoxyd und Salzsäure zerlegt. Die Vorgänge werden durch' folgende Formeln erläutert: r. Fe. OS+6HCl-2FeCl3+3H2O ,8 (glühend trocken -sao@ C 2. 2 Fe C]3 + 3 H2 O = Fee O3 + 6 H Cl. (erhitzt auf . 200-23o0 C) Die erhaltene Salzsäure wird getrocknet und zum obigen Prozeß wieder verwendet, so daß der Prozeß als Zirkulationsprozeß anzusehen ist.Process for the treatment of or Siemens martin slag. Glowing Thomas or Siernensmartin slag is used in. a temperature of. 780 to 88o ° C exposed to hydrochloric acid vapors. iron chloride passes over, while calcium phosphate and silica remain in the residue. The escaping iron chloride vapors are caught in water and broken down into iron oxide and hydrochloric acid at a temperature of up to 230 ° C. The processes are explained by the following formulas: r. Fe. OS + 6HCl-2FeCl3 + 3H2O , 8 (red-hot dry -sao @ C 2. 2 Fe C] 3 + 3 H2 O = Fee O3 + 6 H Cl. (heated up. 200-23o0 C) The hydrochloric acid obtained is dried and used again for the above process, so that the process is to be regarded as a circulation process.

Claims (1)

PATENTANSPRUCH: -Verfahren, um aus Thomas- oder Siemensmartinschlacke Eisen zurückzugewinnen und außerdem ein hochwertiges Kalziumphosphat und Kieselsäure enthaltendes Düngemittel zu erhalten, dadurch gekennzeichnet, daß Salzsäuredämpfe durch oder über glühende Eisenschlacke geleitet werden; wodurch bei einer Temperatur von 780 bis 88o° C Eisenchlorid übergeht, welches in Wasser aufgefangen und beim Erhitzen bei. einer Temperatur von Zoo bis 23o° C in Eisenoxyd und Salzsäure zerlegt wird, während Kalziumphosphat und Kie's:elsäure als Düngemittel zurückbleiben. PATENT CLAIM: -Process to recover iron from Thomas or Siemensmartin slag and also to obtain a high-quality fertilizer containing calcium phosphate and silica, characterized in that hydrochloric acid vapors are passed through or over red-hot iron slag; whereby iron chloride passes over at a temperature of 780 to 88o ° C, which is collected in water and when heated. at a temperature of zoo to 23o ° C is broken down into iron oxide and hydrochloric acid, while calcium phosphate and kieselic acid remain as fertilizers.
DE1919327054D 1919-06-28 1919-06-28 Process for the treatment of Thomas or Siemens Martin slag Expired DE327054C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE327054T 1919-06-28

Publications (1)

Publication Number Publication Date
DE327054C true DE327054C (en) 1920-10-04

Family

ID=6184557

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1919327054D Expired DE327054C (en) 1919-06-28 1919-06-28 Process for the treatment of Thomas or Siemens Martin slag

Country Status (1)

Country Link
DE (1) DE327054C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442129A (en) * 1945-08-06 1948-05-25 Norton Co Diamond grinding wheel construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442129A (en) * 1945-08-06 1948-05-25 Norton Co Diamond grinding wheel construction

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