WO2016139461A1 - Process - Google Patents

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Publication number
WO2016139461A1
WO2016139461A1 PCT/GB2016/050533 GB2016050533W WO2016139461A1 WO 2016139461 A1 WO2016139461 A1 WO 2016139461A1 GB 2016050533 W GB2016050533 W GB 2016050533W WO 2016139461 A1 WO2016139461 A1 WO 2016139461A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal
solution
residue
metal oxides
produce
Prior art date
Application number
PCT/GB2016/050533
Other languages
English (en)
French (fr)
Inventor
Animesh Jha
Sergio SANCHEZ-SEGADO
Lidia ESCUDERO-CASTEJON
Original Assignee
University Of Leeds
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 University Of Leeds filed Critical University Of Leeds
Priority to CN201680013677.6A priority Critical patent/CN107406904B/zh
Publication of WO2016139461A1 publication Critical patent/WO2016139461A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium

Definitions

  • Ascorbic acid and oxalic acid are preferred.
  • Sulphuric acid and oxalic acid are preferred.
  • the primary metal residue is chromium (III) oxide (Cr 2 03) (eg metallurgical grade chromium (III) oxide).
  • Cr 2 03 may be used downstream for manufacturing sodium chromate (Na2Cr0 4 ), sodium dichromate ( a2Cr 2 07), chrome metal or other chromium- based chemicals.
  • step (b) is: reductively roasting the feedstock at a roasting temperature for a roasting period to produce a roast.
  • the one or more metal value-containing precipitates may contain Na, Ti, Ca, Fe or V values.
  • Figure 9 illustrates XRD patterns of reduced samples and magnetic fractions in Example 3
  • Figure 10 illustrates SEM images of the magnetic fraction in Example 3
  • a second leaching step is carried out using acid.
  • Samples are leached in acid at 60°C for 1.5 hours with continuous stirring.
  • Soiidrliquid ratio and acid concentration vary from 3:50 g/mL to 3:300 g/mL and 0.05M to 0.5M respectively.
  • sulfuric acid is used and the effect of acid concentration and soiidrliquid ratio are studied.
  • oxalic acid is used and the results are compared with sulfuric acid leaching.
  • Acid leached residues are finally heated at 800°C for 1 hour in order to burn any remaining carbon.
  • the Cr 2 03-rich residues obtained are characterised by X-ray powder diffraction and X-ray fluorescence.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
PCT/GB2016/050533 2015-03-04 2016-03-01 Process WO2016139461A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680013677.6A CN107406904B (zh) 2015-03-04 2016-03-01 方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201503636A GB201503636D0 (en) 2015-03-04 2015-03-04 Process
GB1503636.1 2015-03-04

Publications (1)

Publication Number Publication Date
WO2016139461A1 true WO2016139461A1 (en) 2016-09-09

Family

ID=52876477

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2016/050533 WO2016139461A1 (en) 2015-03-04 2016-03-01 Process

Country Status (3)

Country Link
CN (1) CN107406904B (zh)
GB (1) GB201503636D0 (zh)
WO (1) WO2016139461A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10508320B2 (en) * 2015-03-04 2019-12-17 University Of Leeds Process for recovering primary metal residue from a metal-containing composition

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001042A (en) * 1977-07-12 1979-01-24 Toyo Soda Mfg Co Ltd Process for producing metallic chromium
US4207295A (en) * 1979-02-13 1980-06-10 Union Carbide Corporation Processing of chromium ore
WO2005028369A1 (en) * 2003-09-18 2005-03-31 The University Of Leeds Process for the recovery of titanium dioxide from titanium-containing compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1579947A (zh) * 2003-08-06 2005-02-16 民乐县化工厂 无钙焙烧生产铬酸钠工艺
CN102041377B (zh) * 2010-11-11 2012-04-18 武钢集团昆明钢铁股份有限公司 回收钒钛磁铁精矿中铁、钒、铬的方法
CN104152724B (zh) * 2014-07-25 2016-09-07 中南大学 一种从红土矿中富集铬的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001042A (en) * 1977-07-12 1979-01-24 Toyo Soda Mfg Co Ltd Process for producing metallic chromium
US4207295A (en) * 1979-02-13 1980-06-10 Union Carbide Corporation Processing of chromium ore
WO2005028369A1 (en) * 2003-09-18 2005-03-31 The University Of Leeds Process for the recovery of titanium dioxide from titanium-containing compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LONGSHENG ZHAO ET AL: "A novel method to extract iron, titanium, vanadium, and chromium from high-chromium vanadium-bearing titanomagnetite concentrates", HYDROMETALLURGY., vol. 149, 1 October 2014 (2014-10-01), NL, pages 106 - 109, XP055270232, ISSN: 0304-386X, DOI: 10.1016/j.hydromet.2014.07.014 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10508320B2 (en) * 2015-03-04 2019-12-17 University Of Leeds Process for recovering primary metal residue from a metal-containing composition

Also Published As

Publication number Publication date
CN107406904A (zh) 2017-11-28
GB201503636D0 (en) 2015-04-15
CN107406904B (zh) 2019-02-19

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