HRP930104B1 - Process for the removal of sodium oxalate from sodium aluminate solutions originating from the bayer-cycle - Google Patents

Process for the removal of sodium oxalate from sodium aluminate solutions originating from the bayer-cycle

Info

Publication number
HRP930104B1
HRP930104B1 HR9201481A HRP930104A HRP930104B1 HR P930104 B1 HRP930104 B1 HR P930104B1 HR 9201481 A HR9201481 A HR 9201481A HR P930104 A HRP930104 A HR P930104A HR P930104 B1 HRP930104 B1 HR P930104B1
Authority
HR
Croatia
Prior art keywords
sodium
bayer
cycle
removal
aluminate solutions
Prior art date
Application number
HR9201481A
Other languages
English (en)
Inventor
Yves Michel Perret
Original Assignee
Yves Michel Perret
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 Yves Michel Perret filed Critical Yves Michel Perret
Publication of HRP930104A2 publication Critical patent/HRP930104A2/hr
Publication of HRP930104B1 publication Critical patent/HRP930104B1/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C01F7/473—Removal of organic compounds, e.g. sodium oxalate
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0606—Making-up the alkali hydroxide solution from recycled spent liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
HR9201481A 1992-02-05 1993-02-03 Process for the removal of sodium oxalate from sodium aluminate solutions originating from the bayer-cycle HRP930104B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9201481A FR2686872B1 (fr) 1992-02-05 1992-02-05 Procede d'elimination de l'oxalate de sodium des solutions d'aluminate de sodium du cycle bayer.

Publications (2)

Publication Number Publication Date
HRP930104A2 HRP930104A2 (en) 1994-08-31
HRP930104B1 true HRP930104B1 (en) 1998-10-31

Family

ID=9426498

Family Applications (1)

Application Number Title Priority Date Filing Date
HR9201481A HRP930104B1 (en) 1992-02-05 1993-02-03 Process for the removal of sodium oxalate from sodium aluminate solutions originating from the bayer-cycle

Country Status (10)

Country Link
EP (1) EP0555163B1 (hr)
CN (1) CN1033379C (hr)
AU (1) AU648215B2 (hr)
BR (1) BR9300494A (hr)
DE (1) DE69300121T2 (hr)
ES (1) ES2071533T3 (hr)
FR (1) FR2686872B1 (hr)
GR (1) GR3015945T3 (hr)
HR (1) HRP930104B1 (hr)
OA (1) OA09774A (hr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU669576B2 (en) * 1992-11-17 1996-06-13 Bhp Billiton Worsley Alumina Pty Ltd Hydrate precipitation and oxalate removal
FR2736908B1 (fr) * 1995-07-20 1997-08-29 Pechiney Aluminium Procede d'epuration des solutions d'aluminate de sodium contenant de l'oxalate de sodium
FR2785895B1 (fr) * 1998-11-16 2001-01-19 Pechiney Aluminium Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant d'augmenter la quantite d'hydrate d'alumine produit
AUPP933499A0 (en) 1999-03-19 1999-04-15 Worsley Alumina Pty Ltd Process for the removal of oxalate and/or sulphate from bayer liquors
AU768730B2 (en) * 1999-03-19 2004-01-08 South32 Worsley Alumina Pty Ltd Process for the removal of oxalate and/or sulphate from bayer liquors
FR2794449B1 (fr) * 1999-06-04 2001-10-19 Pechiney Aluminium Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant de valoriser les residus
AUPR437001A0 (en) 2001-04-11 2001-05-17 Worsley Alumina Pty Ltd Process for the removal of anionic impurities from caustic aluminate solutions
FR2860782B1 (fr) * 2003-10-10 2006-09-29 Pechiney Aluminium Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer
CN101462114B (zh) * 2007-12-17 2010-10-13 贵阳铝镁设计研究院 一种氧化铝生产中换热器中草酸钠结晶的处理方法
CN101734694B (zh) * 2008-11-17 2012-10-03 贵阳铝镁设计研究院有限公司 采用超浓缩法从拜尔法溶液中排除草酸钠和碳酸盐的方法
CN102489244A (zh) * 2011-11-24 2012-06-13 中国铝业股份有限公司 一种过滤铝酸盐溶液的助滤剂及其使用方法
CN102716616A (zh) * 2012-06-21 2012-10-10 中国铝业股份有限公司 一种铝酸钠溶液叶滤过程的助滤剂
CN103342377B (zh) * 2013-07-23 2015-08-05 山东南山铝业股份有限公司 一种铝酸钠溶液石灰苛化除草酸钠的方法
CN103818935A (zh) * 2014-01-13 2014-05-28 赵凿元 一种从含钾铝酸钠溶液中分离氧化钾的方法
CN105731511B (zh) * 2016-01-19 2017-10-20 中国铝业股份有限公司 一种从分解原液中脱除草酸钠的方法
CN107572570A (zh) * 2017-09-15 2018-01-12 臧海伟 一种从拜耳法洗液中脱除草酸盐的方法
CN110203954A (zh) * 2019-03-20 2019-09-06 昆明冶金研究院 一种氧化法脱除氧化铝母液有机物的方法
CN113149048B (zh) * 2021-03-26 2022-08-26 马朝扬 一种氧化铝生产过程中草酸钠固体废渣的处理方法
CN113912096B (zh) * 2021-10-22 2023-07-11 中铝矿业有限公司 拜耳法种分母液草酸盐脱除工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370017A (en) * 1963-07-30 1968-02-20 Du Pont Microcrystalline corundum powder, sols thereof, and processes for preparing both
HU166060B (hr) * 1973-04-09 1975-01-28
CA1285373C (fr) * 1984-06-25 1991-07-02 Jean Fabre Purification des solutions d'aluminate de sodium du cycle bayer par elimination d'oxalate de sodium
AT389884B (de) * 1986-10-03 1990-02-12 Treibacher Chemische Werke Ag Verfahren zur herstellung eines gesinterten schleifmaterials auf der basis von alpha-al2o3
JP2639121B2 (ja) * 1989-08-25 1997-08-06 三菱マテリアル株式会社 微細α―アルミナ粉末の製造方法

Also Published As

Publication number Publication date
GR3015945T3 (en) 1995-07-31
EP0555163B1 (fr) 1995-04-26
ES2071533T3 (es) 1995-06-16
BR9300494A (pt) 1993-08-10
DE69300121D1 (de) 1995-06-01
HRP930104A2 (en) 1994-08-31
EP0555163A1 (fr) 1993-08-11
AU648215B2 (en) 1994-04-14
CN1076427A (zh) 1993-09-22
AU3219793A (en) 1993-08-12
CN1033379C (zh) 1996-11-27
FR2686872A1 (fr) 1993-08-06
OA09774A (fr) 1993-11-30
DE69300121T2 (de) 1995-08-31
FR2686872B1 (fr) 1994-06-03

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