HUT40978A - Process for extraction of useful compositions from polluting environment quencher acid slag with poison content - Google Patents

Process for extraction of useful compositions from polluting environment quencher acid slag with poison content

Info

Publication number
HUT40978A
HUT40978A HU28984A HU28984A HUT40978A HU T40978 A HUT40978 A HU T40978A HU 28984 A HU28984 A HU 28984A HU 28984 A HU28984 A HU 28984A HU T40978 A HUT40978 A HU T40978A
Authority
HU
Hungary
Prior art keywords
extraction
pptd
naoh
useful compositions
filtrate
Prior art date
Application number
HU28984A
Other languages
Hungarian (hu)
Other versions
HU194131B (en
Inventor
Tamas Scholtz
Laszlo Kovacs
Original Assignee
Tamas Scholtz
Laszlo Kovacs
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 Tamas Scholtz, Laszlo Kovacs filed Critical Tamas Scholtz
Priority to HU28984A priority Critical patent/HU194131B/en
Publication of HUT40978A publication Critical patent/HUT40978A/en
Publication of HU194131B publication Critical patent/HU194131B/en

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  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Pulverised hardened slag is extd. with a chloride soln. liberating HCN and CO2, which are partially absorbed in a NaCl soln. from which it is removed by boiling, air-blowing and centrifuge. Heavy metal ions pptd. from the filtrate with NaOH, are filtered and smelted. BaCO3 is pptd. from the filtrate and recovered by centrifuging. The remaining filtrate is evapd. The bulk of HCN is the absorbed in a suspension of ZnO in K2CO3 resulting in a K-Zn-CN complex. The remaining brine is mixed with NaOH and the resulting NaCN and NaOH are pptd.
HU28984A 1984-01-24 1984-01-24 Process for extraction of useful compositions from polluting environment quencher acid slag with poison content HU194131B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU28984A HU194131B (en) 1984-01-24 1984-01-24 Process for extraction of useful compositions from polluting environment quencher acid slag with poison content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU28984A HU194131B (en) 1984-01-24 1984-01-24 Process for extraction of useful compositions from polluting environment quencher acid slag with poison content

Publications (2)

Publication Number Publication Date
HUT40978A true HUT40978A (en) 1987-03-30
HU194131B HU194131B (en) 1988-01-28

Family

ID=10948934

Family Applications (1)

Application Number Title Priority Date Filing Date
HU28984A HU194131B (en) 1984-01-24 1984-01-24 Process for extraction of useful compositions from polluting environment quencher acid slag with poison content

Country Status (1)

Country Link
HU (1) HU194131B (en)

Also Published As

Publication number Publication date
HU194131B (en) 1988-01-28

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HMM4 Cancellation of final prot. due to non-payment of fee