JPS54152613A - Recovering method for metal in waste water - Google Patents

Recovering method for metal in waste water

Info

Publication number
JPS54152613A
JPS54152613A JP6148678A JP6148678A JPS54152613A JP S54152613 A JPS54152613 A JP S54152613A JP 6148678 A JP6148678 A JP 6148678A JP 6148678 A JP6148678 A JP 6148678A JP S54152613 A JPS54152613 A JP S54152613A
Authority
JP
Japan
Prior art keywords
waste water
soln
heavy metals
separation
residual
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.)
Granted
Application number
JP6148678A
Other languages
Japanese (ja)
Other versions
JPS6143282B2 (en
Inventor
Taneaki Okuda
Toshio Ishihara
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6148678A priority Critical patent/JPS54152613A/en
Publication of JPS54152613A publication Critical patent/JPS54152613A/en
Publication of JPS6143282B2 publication Critical patent/JPS6143282B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: To separation-recover Mo, W and Te as their hydrated oxides of high purity by oxidizing part of ferrous ions in waste water contg. Mo, W, Te and heavy metals to precipitation-remove the ions together with the heavy metals and by adjusting the residual soln. to pH≤2.
CONSTITUTION: To industrial waste water contg. valuable metals such as Mo, W and Te and other heavy metals is added ferrous sulfate and further added an about 30 % aq. soln. of caustic soda. The waste water thus adjusted to pH 8W12 is heated to 65°C and blown with air at a rate of 2 l/min to induce oxidation, forming black srinel type ferrite precipitates. The heavy metals such as Mn, Co, Ni, Cr, Zn, Cu and Cd are precipitated simultaneously. The ferrite precipitates are removed by magnetic separation, and the residual aq. soln. is adjusted to pH≤2 with hydrochloric acid. The Mo, W and Te in the aq. soln. precipitate as their hydrated oxides, which are then recovered by filtration and separation.
COPYRIGHT: (C)1979,JPO&Japio
JP6148678A 1978-05-22 1978-05-22 Recovering method for metal in waste water Granted JPS54152613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6148678A JPS54152613A (en) 1978-05-22 1978-05-22 Recovering method for metal in waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6148678A JPS54152613A (en) 1978-05-22 1978-05-22 Recovering method for metal in waste water

Publications (2)

Publication Number Publication Date
JPS54152613A true JPS54152613A (en) 1979-12-01
JPS6143282B2 JPS6143282B2 (en) 1986-09-26

Family

ID=13172454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6148678A Granted JPS54152613A (en) 1978-05-22 1978-05-22 Recovering method for metal in waste water

Country Status (1)

Country Link
JP (1) JPS54152613A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013453A (en) * 1983-03-21 1991-05-07 Union Oil Company Of California Method for removing heavy metals from aqueous solutions by coprecipitation
US5045214A (en) * 1983-03-21 1991-09-03 Union Oil Company Of California Methods for removing substances from aqueous solutions
JP2012206867A (en) * 2011-03-29 2012-10-25 Sumitomo Metal Mining Co Ltd Method for producing molybdenum trioxide
CN117505066A (en) * 2024-01-05 2024-02-06 湖南启航纳米材料科技有限公司 Yellow tungsten oxide deironing processing apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013453A (en) * 1983-03-21 1991-05-07 Union Oil Company Of California Method for removing heavy metals from aqueous solutions by coprecipitation
US5045214A (en) * 1983-03-21 1991-09-03 Union Oil Company Of California Methods for removing substances from aqueous solutions
JP2012206867A (en) * 2011-03-29 2012-10-25 Sumitomo Metal Mining Co Ltd Method for producing molybdenum trioxide
CN117505066A (en) * 2024-01-05 2024-02-06 湖南启航纳米材料科技有限公司 Yellow tungsten oxide deironing processing apparatus
CN117505066B (en) * 2024-01-05 2024-03-29 湖南启航纳米材料科技有限公司 Yellow tungsten oxide deironing processing apparatus

Also Published As

Publication number Publication date
JPS6143282B2 (en) 1986-09-26

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