EP1194376A4 - Method for causticisation of alkaline solutions - Google Patents
Method for causticisation of alkaline solutionsInfo
- Publication number
- EP1194376A4 EP1194376A4 EP00918583A EP00918583A EP1194376A4 EP 1194376 A4 EP1194376 A4 EP 1194376A4 EP 00918583 A EP00918583 A EP 00918583A EP 00918583 A EP00918583 A EP 00918583A EP 1194376 A4 EP1194376 A4 EP 1194376A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- causticisation
- alkaline solutions
- alkaline
- solutions
- 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.)
- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds
-
- 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
- C01F7/0646—Separation of the insoluble residue, e.g. of red mud
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPP9982A AUPP998299A0 (en) | 1999-04-23 | 1999-04-23 | Method for causticisation of alkaline solutions |
AUPP998299 | 1999-04-23 | ||
PCT/AU2000/000346 WO2000064812A1 (en) | 1999-04-23 | 2000-04-20 | Method for causticisation of alkaline solutions |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1194376A1 EP1194376A1 (en) | 2002-04-10 |
EP1194376A4 true EP1194376A4 (en) | 2004-04-07 |
Family
ID=3814183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00918583A Withdrawn EP1194376A4 (en) | 1999-04-23 | 2000-04-20 | Method for causticisation of alkaline solutions |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1194376A4 (en) |
AU (1) | AUPP998299A0 (en) |
BR (1) | BR0009920B1 (en) |
CA (1) | CA2370956C (en) |
WO (1) | WO2000064812A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPQ889100A0 (en) | 2000-07-20 | 2000-08-10 | Worsley Alumina Pty Ltd | Improved process for filter aid production in alumina refineries |
EP2308856A1 (en) | 2009-10-09 | 2011-04-13 | Borealis Agrolinz Melamine GmbH | Water recycling in a melamine production process |
WO2013131118A1 (en) * | 2012-03-07 | 2013-09-12 | Bhp Billiton Worsley Alumina Pty Ltd | High temperature processs for causticisation of a bayer liquor |
AU2012203292C8 (en) * | 2012-03-07 | 2013-12-19 | South32 Worsley Alumina Pty Ltd | High temperature processs for causticisation of a bayer liquor |
CN112236398A (en) * | 2018-05-28 | 2021-01-15 | 美铝澳大利亚有限公司 | Method for impurity control |
CA3100733A1 (en) * | 2018-05-28 | 2019-12-05 | Alcoa Of Australia Limited | Method for controlling the concentration of impurities in bayer liquors |
CN111362290A (en) * | 2020-05-05 | 2020-07-03 | 湖南诺兰蒂尔环保科技有限公司 | Causticizing process and device for sodium carbonate in sodium aluminate solution |
CN115784408B (en) * | 2022-08-31 | 2023-09-12 | 哈尔滨工业大学 | Method for removing phosphorus, fluorine and heavy metals in wastewater by utilizing modified seed crystal induced crystallization |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2522605A (en) * | 1949-05-13 | 1950-09-19 | Kaiser Aluminium Chem Corp | Process for extraction of alumina from aluminous ores |
US3210155A (en) * | 1962-05-15 | 1965-10-05 | Ormet Corp | Process for treating aluminum containing ores |
HU187654B (en) * | 1982-02-26 | 1986-02-28 | Ajkai Timfoeldgyar Aluminium | Process for reduction of damages in production of aluminium oxid of bayer system |
US4451443A (en) * | 1982-07-28 | 1984-05-29 | Aluminum Company Of America | Causticization method |
US5145556A (en) * | 1991-07-31 | 1992-09-08 | International Paper Company | Single-stage slaking and causticizing method |
-
1999
- 1999-04-23 AU AUPP9982A patent/AUPP998299A0/en not_active Abandoned
-
2000
- 2000-04-20 CA CA002370956A patent/CA2370956C/en not_active Expired - Fee Related
- 2000-04-20 EP EP00918583A patent/EP1194376A4/en not_active Withdrawn
- 2000-04-20 BR BRPI0009920-1A patent/BR0009920B1/en not_active IP Right Cessation
- 2000-04-20 WO PCT/AU2000/000346 patent/WO2000064812A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
No further relevant documents disclosed * |
Also Published As
Publication number | Publication date |
---|---|
AUPP998299A0 (en) | 1999-05-20 |
CA2370956C (en) | 2008-12-30 |
EP1194376A1 (en) | 2002-04-10 |
BR0009920A (en) | 2002-05-28 |
BR0009920B1 (en) | 2011-05-17 |
CA2370956A1 (en) | 2000-11-02 |
WO2000064812A1 (en) | 2000-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB9918031D0 (en) | Method | |
GB9916757D0 (en) | Method | |
GB2353974B (en) | Method of printing | |
GB0007871D0 (en) | Method | |
AP2000001966A0 (en) | Method for reduction of nickel | |
EP1194376A4 (en) | Method for causticisation of alkaline solutions | |
GB9915625D0 (en) | Method | |
GB9924752D0 (en) | Method of construction | |
GB9919370D0 (en) | Method | |
GB2355455B (en) | Method | |
PL336550A1 (en) | Method of decoposing 2-chloroethenylchloroarsazine | |
GB9915936D0 (en) | Method | |
GB0007867D0 (en) | Method | |
GB9920334D0 (en) | Method | |
IL130733A0 (en) | Method for making trans-2-dibromoindan-1-OL | |
PL332532A1 (en) | Method of obatining 4-amino-5-hexenic acid | |
HU9902898D0 (en) | Method for influancing thermosensibility | |
GB9919881D0 (en) | Method of printing | |
GB9916959D0 (en) | Method of printing | |
GB9916941D0 (en) | Method of printing | |
PL331745A1 (en) | Method of making fibreboards | |
GB9905234D0 (en) | Method | |
GB9906056D0 (en) | Method | |
GB9906852D0 (en) | Method | |
GB9907196D0 (en) | Method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20011116 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20040225 |
|
17Q | First examination report despatched |
Effective date: 20080711 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20081101 |