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1. 发明申请

WO2007022100A1 MEMBRANES AND METHODS USEFUL FOR CAUSTIC APPLICATIONS 审中-公开
标题翻译：膜和方法适用于原始应用
公开(公告)号：WO2007022100A1
公开(公告)日：2007-02-22
申请号：PCT/US2006/031680
申请日：2006-08-14
申请人： GE OSMONICS, INC. , KURTH, Christopher, J. , IVERSON, Isaac, K. , KLOOS, Steven, D. , HODGINS, Leonard, T. , ROLCHIGO, Philip, M.
发明人： KURTH, Christopher, J. , IVERSON, Isaac, K. , KLOOS, Steven, D. , HODGINS, Leonard, T. , ROLCHIGO, Philip, M.
IPC分类号： C08G69/46 , C08G75/30 , B01D71/56 , B01D71/82 , B01D69/12 , B01D61/14 , B01D67/00 , B01D71/68
CPC分类号： C08G69/46 , B01D61/025 , B01D61/027 , B01D67/0093 , B01D71/56 , B01D71/66 , C01F7/473 , C23F1/46
摘要： The invention provides novel polymer matrices and methods for preparing polymer matrices, as well as methods for purifying caustic feed streams using membranes that comprise polysulfonamide matrices.
摘要翻译：本发明提供新颖的聚合物基质和制备聚合物基质的方法，以及使用包含聚磺酰胺基质的膜来净化苛性碱进料流的方法。

2. 发明申请

WO00075073A1 METHOD FOR PURIFYING SODIUM ALUMINATE LIQUORS CONTAINING SODIUM OXALATE AND ENHANCING RESIDUES 审中-公开
标题翻译：用于净化含有钠盐的铝酸钠液体和增强残留物的方法
公开(公告)号：WO00075073A1
公开(公告)日：2000-12-14
申请号：PCT/FR2000/001451
申请日：2000-05-29
IPC分类号： C01F7/06 , C01F7/47 , C02F5/02
CPC分类号： C01F7/473 , C01F7/0646
摘要： A method for eliminating sodium oxalate from at least one fraction (L4) of decomposed Bayer aluminate liquor (L2) obtained after concentration (V) in a Bayer alumina production cycle, comprising the precipitation of said oxalate which is dissolved by means of a finely divided lime-based (C1) destabilizing agent followed by separation (F) of the solid residues from the deoxalation (S4) of the liquor (L6) which is recycled as an alkaline leaching liquor for bauxite whereby desolation residues (S4) are used to decarbonate and deoxalate industrial water.The method is particularly advantageous when said industrial water is raw water or water from a Bayer plant and said water is redirected towards the washing cycle for insoluble residues from the Bayer cycle once treatment has occurred.
摘要翻译：一种从拜耳氧化铝生产循环中浓缩（V）后得到的分解的拜耳铝酸盐液体（L2）的至少一个馏分（L4）中除去草酸钠的方法，包括通过细碎的石灰基（C1）去稳定剂，然后从作为铝土矿的碱性浸出液再循环的液体（L6）的脱氧（S4）中分离（F）固体残留物，从而将残渣（S4）用于脱碳酸并且脱水工业用水。当所述工业水是来自拜耳设备的原水或水时，所述方法特别有利，并且一旦处理已经发生，所述水被重新定向到来自拜耳循环的不溶残留物的洗涤循环。

3. 发明申请

WO2012094696A1 PROCESS FOR THE DESTRUCTION OF ORGANICS IN BAYER PROCESS STREAMS 审中-公开
标题翻译：破坏过程中有机物的过程
公开(公告)号：WO2012094696A1
公开(公告)日：2012-07-19
申请号：PCT/AU2011/001636
申请日：2011-12-16
申请人： ALCOA OF AUSTRALIA LIMITED , MCKINNON, Anthony John , BAKER, Christopher Lawrence
发明人： MCKINNON, Anthony John , BAKER, Christopher Lawrence
IPC分类号： C01F7/46 , C02F3/00 , C02F3/34 , C02F9/14 , C02F101/30 , C02F103/10
CPC分类号： C01F7/473 , C01F7/476
摘要： A process for the destruction of organics in a Bayer process stream, the process comprising the steps of: a) Passing a volume of a Bayer process stream to a reactor vessel in which is provided a population of a mixed bacterial culture; and b) Retaining that volume of the Bayer process stream in the reactor vessel for a period of time during which at least 10% by mass as carbon of the organic compounds destroyed originate from non-oxalate organic compounds, wherein the mixed bacterial culture comprises a mix of bacterial species capable of destroying organics and which has previously been adapted to the Bayer process stream, or a stream of substantially similar composition, prior to introduction to the reactor vessel.
摘要翻译：一种用于在拜耳工艺流中破坏有机物的方法，该方法包括以下步骤：a）将一定体积的拜耳法工艺流传送到反应器容器中，其中提供混合细菌培养物的群体; 和b）将该体积的Bayer工艺流体在反应器容器中保持一段时间，其中随着碳的有机化合物被破坏，至少10质量％来源于非草酸有机化合物，其中混合的细菌培养物包含在引入反应器容器之前，能够破坏有机物并且之前已经适应于拜耳法工艺流的细菌物质混合物或具有基本相似组成的物流。

4. 发明申请

WO2007066143A2 REMOVAL OF CONTAMINANTS FROM A BAYER LIQUOR 审中-公开
标题翻译：从拜耳液体中去除污染物
公开(公告)号：WO2007066143A2
公开(公告)日：2007-06-14
申请号：PCT/GB2006050410
申请日：2006-11-23
申请人： ACCENTUS PLC , HIPKISS DAVID
发明人： HIPKISS DAVID
IPC分类号： C01F7/47 , B01J19/10
CPC分类号： C01F7/473 , B01D9/0013 , B01D9/0036 , B01D9/005 , B01J19/10 , B01J19/1862 , B01J2219/00006 , B01J2219/0871 , B01J2219/0877 , C01F7/47
摘要： The Bayer process uses hot sodium hydroxide solution to obtain pure alumina from bauxite ore. Alumina dissolves, and is then precipitated, and the remaining caustic Bayer liquor can be recycled for use again. However contaminants, particularly sodium salts of organic material, tend to build up in the recycled liquor, and causes problems. Such contaminants can be destroyed using a liquor burner (30). The operation of such a liquor burner (30) can be improved by treating (12, 14) the stream of liquor so as to be supersaturated with contaminants, then subjecting it to ultrasonic irradiation (32), and separating (28) resultant crystals from the liquor fed to the burner (30). This process is enhanced if the liquor is allowed to stand (20, 22) for a significant time after the ultrasonic irradiation, is then cooled (24), and is then again allowed to stand (26) for a significant time before the crystals are separated (28).
摘要翻译：拜耳法利用热氢氧化钠溶液从铝土矿矿石中获得纯氧化铝。氧化铝溶解，然后沉淀，剩余的苛性拜耳液可再循环使用。然而，污染物，特别是有机材料的钠盐倾向于在再循环液中积聚，并引起问题。这种污染物可以使用液体燃烧器（30）破坏。这种液体燃烧器（30）的操作可以通过处理（12,14）液体流以使其与污染物过饱和，然后进行超声波照射（32）并将所得晶体从送到燃烧器（30）的液体。如果液体在超声波照射后允许静置（20,22）持续显着时间，然后冷却（24），然后再次使其静置（26）一段相当长的时间，晶体是分开（28）。

5. 发明申请

WO1992019537A1 METHOD FOR THE CONTROL OF SODIUM OXALATE LEVELS IN SODIUM ALUMINATE SOLUTIONS 审中-公开
标题翻译：在铝酸钠溶液中控制氧化钠水平的方法
公开(公告)号：WO1992019537A1
公开(公告)日：1992-11-12
申请号：PCT/CA1992000188
申请日：1992-05-01
申请人： ALCAN INTERNATIONAL LIMITED
发明人： ALCAN INTERNATIONAL LIMITED , SANG, Jean, Victor , HISCOX, Bryan, A. , CLEGG, Robert , LAURIER, Jacques
IPC分类号： C01F07/47
CPC分类号： C01F7/473
摘要： A process is described for removing sodium oxalate from a sodium aluminate liquor produced through bauxite digestion using the Bayer process. The novel sodium oxalate removal procedure comprises the steps of (a) continuously generating new and reactive seed particles of sodium oxalate by mixing together an aqueous solution of sodium oxalate and a portion of said Bayer process sodium aluminate liquor to achieve a concentration of sodium oxalate within a range to generate spheroidal particles of sodium oxalate (b) adding a suspension of said spheroidal particles of sodium oxalate as seed to a second portion of said Bayer process sodium aluminate liquor, to thereby precipitate the remainder of dissolved sodium oxalate and (c) separating the sodium oxalate precipitate, leaving a liquor of reduced sodium oxalate contamination. The spheroidal particles are formed by controlling the concentration of sodium oxalate at a level about 5 % to about 75 % above autonucleation concentration.
摘要翻译：描述了从使用拜耳法通过铝土矿消化产生的铝酸钠液体中除去草酸钠的方法。新颖的草酸钠去除方法包括以下步骤：（a）通过将草酸钠水溶液和所述拜耳法铝酸钠液体的一部分混合在一起来连续产生草酸钠的新的和反应性的种子颗粒，以达到草酸钠浓度产生草酸钠球形颗粒的范围（b）将所述草酸钠球形颗粒的悬浮液作为种子加入到所述拜耳法铝酸钠液体的第二部分中，从而沉淀剩余的溶解的草酸钠，和（c）分离草酸钠沉淀，留下草酸还原液污染。球形颗粒通过控制草酸钠的浓度高于自生核苷酸浓度约5％至约75％来形成。

6. 发明申请

WO2009086273A1 METHODS AND COMPOSITIONS FOR THE REMOVAL OF IMPURITIES AND WATER FROM THE BAYER PROCESS 审中-公开
标题翻译：从拜耳过程中去除污染物和水的方法和组合物
公开(公告)号：WO2009086273A1
公开(公告)日：2009-07-09
申请号：PCT/US2008/087963
申请日：2008-12-22
申请人： CYTEC TECHNOLOGY CORP. , TAYLOR, Matthew , HARRIS, Douglas, J. , CHEN, Haunn-Lin, Tony , COCALIA, Violina
发明人： TAYLOR, Matthew , HARRIS, Douglas, J. , CHEN, Haunn-Lin, Tony , COCALIA, Violina
IPC分类号： C01F7/47
CPC分类号： C01F7/473
摘要： A liquid phase that comprises an oxalate-extracting amount of an organic salt is useful as an extractant in a liquid/liquid extraction process for purifying Bayer process streams.
摘要翻译：包含草酸盐提取量的有机盐的液相可用作用于纯化拜耳工艺流的液/液萃取方法中的萃取剂。

7. 发明申请

WO2008017109A1 METHOD FOR MANAGEMENT OF CONTAMINANTS IN ALKALINE PROCESS LIQUORS 审中-公开
标题翻译：碱性工艺液中污染物管理方法
公开(公告)号：WO2008017109A1
公开(公告)日：2008-02-14
申请号：PCT/AU2007/001105
申请日：2007-08-06
申请人： ALCOA OF AUSTRALIA LIMITED , JAMIESON, Evan John
发明人： JAMIESON, Evan John
IPC分类号： C01F7/34 , C01F7/46 , C01F7/47 , C01B33/12 , C01B33/14 , C01B33/26 , C01B33/141
CPC分类号： C01F7/47 , C01B33/20 , C01F7/066 , C01F7/473 , C04B28/006 , Y02P40/165 , Y02W30/91 , Y02W30/92 , Y02W30/94 , Y02W30/97 , C04B12/04 , C04B14/106 , C04B14/22 , C04B18/243 , C04B18/0409 , C04B18/08 , C04B18/141 , C04B18/146
摘要： A method for the management of contaminants in an alkaline process circuit, the method including the steps of: adding a source of silica to an alkaline process liquor from the alkaline process circuit; adding a source of alumina to the alkaline process liquor; and forming a geopolymer.
摘要翻译：一种用于处理碱性工艺回路中的污染物的方法，所述方法包括以下步骤：从碱性处理回路中向碱性处理液中加入二氧化硅源; 向碱性处理液中加入氧化铝源; 并形成地质聚合物。

8. 发明申请

WO00056660A1 PROCESS FOR THE REMOVAL OF OXALATE AND/OR SULPHATE FROM BAYER LIQUORS 审中-公开
标题翻译：从拜耳液体中去除氧化物和/或硫酸盐的方法
公开(公告)号：WO00056660A1
公开(公告)日：2000-09-28
申请号：PCT/AU2000/000208
申请日：2000-03-17
IPC分类号： C01F7/47 , C01F7/06
CPC分类号： C01F7/47 , C01F7/473
摘要： A process for the removal and causticisation of sodium oxalate and/or sodium sulphate from a Bayer process liquor containing sodium carbonate and one or both of sodium oxalate and sodium sulphate in an alumina refinery is described. The process is based on the observation that to efficiently causticise sodium oxalate solutions, it is first necessary to remove the aluminate ion from solution, optionally with recovery of the aluminate ion in some later step. This is effected by removing aluminate ions from the Bayer liquor through the formation of a carbonate-bearing hydrocalumite and/or sulphate-bearing hydrocalumite. The liquor may then be treated with sufficient lime to remove and causticise any residual carbonate ions and some or all of the oxalate ions present so that any reacted lime solids thus formed can be separated and safely disposed of. The process may include a pre-causticisation step in which the Bayer liquor is first causticised to reduce the concentration of carbonate ions, prior to the step of removing aluminate ions. The invention provides an effective process for the removal of sodium sulphate and a practical method for the recovery of soda from sodium sulphate. The efficiency of lime utilisation can also be dramatically increased from about 20 % to 80 % (if sulphate removal is not the objective) wherein alumina losses can be minimised. The oxalate concentration of the process liquor is also substantially lower than can usually be achieved in processes based on sodium oxalate-crystallisation.
摘要翻译：描述了在氧化铝精炼厂中从含有碳酸钠和一种或两种草酸钠和硫酸钠的拜耳法处理液中去除和苛化草酸钠和/或硫酸钠的方法。该方法基于以下观察：为了有效地苛化草酸钠溶液，首先需要从溶液中除去铝酸根离子，任选地在稍后的步骤中回收铝酸根离子。这是通过从形成含碳酸酯的水煤钙矿和/或含硫酸盐的水煤钙矿中除去拜耳液中的铝酸盐离子来实现的。然后可以用足够的石灰处理液体以除去和苛化任何残留的碳酸根离子和存在的一些或全部草酸根离子，使得由此形成的任何反应的石灰固体可被分离并安全地处理。该方法可以包括预苛化步骤，其中在去除铝酸根离子的步骤之前，首先将拜耳液体苛化以降低碳酸根离子的浓度。本发明提供了一种去除硫酸钠的有效方法和从硫酸钠中回收苏打的实用方法。石灰利用的效率也可以从约20％显着增加到80％（如果硫酸盐去除不是目标），其中氧化铝损失可以最小化。处理液的草酸盐浓度也显着低于通常在基于草酸钠结晶的方法中实现的草酸盐浓度。

9. 发明申请

WO00018684A1 IMPROVED BAYER CAUSTICISATION 审中-公开
标题翻译：改进的BAYER CAUSTICISATION
公开(公告)号：WO00018684A1
公开(公告)日：2000-04-06
申请号：PCT/AU1999/000757
申请日：1999-09-13
IPC分类号： C01F7/04 , C01F7/06 , C01F7/16 , C01F7/47
CPC分类号： C01F7/0633 , C01F7/473
摘要： An improved process for the causticisation of Bayer liquors in an alumina refinery, the process including the steps of reacting lime with aluminate ions in a Bayer liquor within a primary reactor under controlled conditions of low to moderate temperature (between 70-80 DEG C) and agitation, to form substantially only a hydrocalumite species and hydroxyl ions; and a secondary reactor wherein said hydrocalumite species formed is subjected to heating in contact with a Bayer liquor under controlled conditions so as to cause the hydrocalumite species to react with the liquor to form calcium carbonate, aluminate ions and hydroxyl ions, whereby a causticised Bayer liquor is obtained and wherein the efficiency of lime utilisation is substantially increased and/or alumina losses are minimised.
摘要翻译：一种用于氧化铝精炼厂中拜耳液体的苛化的改进方法，该方法包括以下步骤：在初级反应器内的Bayer液体中，在低温至中等温度（70-80℃）和搅拌，基本上仅形成水煤白粉和羟基离子; 和二次反应器，其中所形成的所述氢钙土矿物质在受控条件下与拜耳液体接触进行加热，以使得水煤白泥物质与液体反应形成碳酸钙，铝酸根离子和羟基离子，由此将苛化的拜耳液并且其中石灰利用的效率显着增加和/或氧化铝损失最小化。

10. 发明申请

WO1997029047A1 PRODUCTION OF ALUMINA 审中-公开
标题翻译：生产铝
公开(公告)号：WO1997029047A1
公开(公告)日：1997-08-14
申请号：PCT/GB1997000280
申请日：1997-01-31
申请人： ALLIED COLLOIDS LIMITED , ADKINS, Stephen, John
发明人： ALLIED COLLOIDS LIMITED
IPC分类号： C01F07/47
CPC分类号： C01F7/473
摘要： In a Bayer red mud process for producing alumina, contamination of the sodium aluminate liquor with organic contamination is reduced by contacting the digestion product or the red mud with bone char, macroporous carbon or macroporous fly ash or other adsorbent and separating the resultant loaded adsorbent from the digestion product or wash liquor.
摘要翻译：在用于生产氧化铝的拜耳红泥工艺中，通过将消化产物或红泥与骨炭，大孔碳或大孔飞灰或其它吸附剂接触，将铝酸钠液体与有机污染物的污染降低，并将所得负载的吸附剂从消化产品或洗液。

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