GB1112703A - Process and means for separating dissolved metal compounds from mineral acids - Google Patents

Process and means for separating dissolved metal compounds from mineral acids

Info

Publication number
GB1112703A
GB1112703A GB327066A GB327066A GB1112703A GB 1112703 A GB1112703 A GB 1112703A GB 327066 A GB327066 A GB 327066A GB 327066 A GB327066 A GB 327066A GB 1112703 A GB1112703 A GB 1112703A
Authority
GB
United Kingdom
Prior art keywords
gas
acid
solution
vapours
conduit
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
GB327066A
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.)
Dr C Otto and Co GmbH
Original Assignee
Dr C Otto and Co GmbH
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 Dr C Otto and Co GmbH filed Critical Dr C Otto and Co GmbH
Publication of GB1112703A publication Critical patent/GB1112703A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/14—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/34—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of sprayed or atomised solutions
    • 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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)

Abstract

<PICT:1112703/C1/1> Metal salts and/or oxides are obtained from acid solutions, e.g. pickling solutions, by spraying the solution (through nozzle 6) into a highly turbulent gas stream consisting of a mixture of hot gas and return gas (supplied through lines 3 and 5) and withdrawing a suspension of the solid product in gas and acid vapours (through conduit 8). As shown in the Figure, to which the above numerals relate, baffles 2 cause turbulence of the upflowing gas and sprayed droplets. In the case of a solution of iron sulphate, iron chlorides, sulphuric acid, hydrochloric acid and water, hot gas at a temperature of 1200 DEG C. is introduced through nozzle 4, gas at 380 DEG C. is returned through pipe 5, and the gas mixture has a temperature of 420 DEG C., whereby only the iron chlorides are decomposed. The suspension of solid particles in conduit 7 enters cyclone 9, and the major part of the particles is separated. The gases pass on to tower 10 where the acid vapours are absorbed in water. Before the absorption of the acid vapours, the gases may be used for preheating and preconcentrating the acid solution to be treated.
GB327066A 1965-01-26 1966-01-25 Process and means for separating dissolved metal compounds from mineral acids Expired GB1112703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO0010627 1965-01-26

Publications (1)

Publication Number Publication Date
GB1112703A true GB1112703A (en) 1968-05-08

Family

ID=7352045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB327066A Expired GB1112703A (en) 1965-01-26 1966-01-25 Process and means for separating dissolved metal compounds from mineral acids

Country Status (4)

Country Link
AT (1) AT269069B (en)
BE (1) BE675586A (en)
DE (1) DE1592484A1 (en)
GB (1) GB1112703A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2162383A1 (en) * 1971-12-06 1973-07-20 New Jersey Zinc Co

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085666A3 (en) * 1982-02-03 1985-07-03 A/S Niro Atomizer Method of processing sulfuric acid having a content of metal sulfates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2162383A1 (en) * 1971-12-06 1973-07-20 New Jersey Zinc Co

Also Published As

Publication number Publication date
DE1592484A1 (en) 1973-02-08
AT269069B (en) 1969-03-10
BE675586A (en) 1966-05-31

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