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1. 发明申请

WO2008034196A1 METHOD OF CONCENTRATING A BAYER PROCESS LIQUOR 审中-公开
标题翻译：浓缩贝氏过程液的方法
公开(公告)号：WO2008034196A1
公开(公告)日：2008-03-27
申请号：PCT/AU2007/001407
申请日：2007-09-21
申请人： ALCOA OF AUSTRALIA LIMITED , ILIEVSKI, Dean , HAY, Peter Stewart
发明人： ILIEVSKI, Dean , HAY, Peter Stewart
IPC分类号： B01D1/00 , C01F7/04 , F28D15/02
CPC分类号： C01F7/0606 , C01F7/441
摘要： A method for concentrating spent Bayer process liquor, the method comprising the steps of: recovering heat from a Bayer process calciner flue gas; applying at least a portion of the recovered heat to the spent Bayer process liquor; and evaporating water from the spent Bayer process liquor, thereby concentrating the spent Bayer process liquor.
摘要翻译：一种用于浓缩拜耳处理液的方法，该方法包括以下步骤：从拜耳法煅烧炉废气中回收热量; 将至少一部分回收的热量施加到已用的拜耳处理液中; 并从废拜耳处理液中蒸发水，从而将废拜勒处理液浓缩。

2. 发明申请

WO2006081626A1 METHOD FOR THE CAUSTICISATION OF BAYER PROCESS SOLUTIONS 审中-公开
标题翻译：贝叶斯过程解决方案的建立方法
公开(公告)号：WO2006081626A1
公开(公告)日：2006-08-10
申请号：PCT/AU2006/000140
申请日：2006-02-03
申请人： ALCOA OF AUSTRALIA LIMITED , DE WITT, Geraldine Charmaine , ROACH, Gerald, Dunstan , RILEY, Geoffrey William
发明人： ROACH, Gerald, Dunstan , RILEY, Geoffrey William
IPC分类号： C01F7/06
CPC分类号： C01F7/0606 , C01F7/0633 , C01F7/0646 , C01F7/46
摘要： A method for the causticisation of a Bayer process solution, the method including the steps of: adding a source of phosphate to the Bayer process solution; adding a causticising agent to the Bayer process solution; and forming a calcium phosphate precipitate, thereby causticising the Bayer process solution.
摘要翻译：一种用于拜耳法处理溶液的苛化的方法，该方法包括以下步骤：向拜耳法溶液中加入磷酸盐; 向拜耳过程溶液中加入苛性剂; 并形成磷酸钙沉淀物，从而使拜耳工艺溶液苛化。

3. 发明申请

WO2005035445A3 METHOD FOR REDUCING FOULING OF HEAT EXCHANGERS IN A BAYER CIRCUIT 审中-公开
标题翻译：减少热交换器在贝叶斯电路中发生故障的方法
公开(公告)号：WO2005035445A3
公开(公告)日：2006-06-22
申请号：PCT/FR2004002538
申请日：2004-10-08
申请人： PECHINEY ALUMINIUM , CRISTOL BENOIT , ESQUERRE VALERIE
发明人： CRISTOL BENOIT , ESQUERRE VALERIE
IPC分类号： C01F7/06
CPC分类号： C01F7/0606
摘要： The invention relates to a Bayer process for the production of aluminium trihydrate comprising: a) a milling step (B) for the bauxite (10), b) a step of digestion (A) of said bauxite by a sodium aluminate liquor, c) a liquid/solid separation step (C and F), d) a decomposition step (D) for said supersaturated aluminate liquor e) after separation of the precipitated aluminium trihydrate (30), a step of concentration (E) by evaporation of said sodium aluminate liquor for recycling as digestion liquor, said process being characterised in that a calcium based compound (11, 111, 11', 111'), belonging to the group of tricalcinated aluminates, is introduced into said sodium aluminate liquor. The introduction of said calcium compound into the aluminate liquor is carried out between the exit thereof from the decomposition chain and the mixing thereof with the milled bauxite upstream of a heat exchanger.
摘要翻译：本发明涉及一种用于生产三水合铝的拜耳法，其包括：a）用于铝土矿（10）的研磨步骤（B），b）通过铝酸钠液体消化（A）所述铝土矿的步骤，c）液体/固体分离步骤（C和F），d）用于所述过饱和铝酸盐液体的分解步骤（D）e）在分离沉淀的三水合铝（30）之后，通过蒸发所述钠铝酸盐液体作为消化液再循环，所述方法的特征在于将属于三氯化铝酸盐的钙基化合物（11,111,11'，111'）引入所述铝酸钠液体中。所述钙化合物在铝酸盐液中的引入在其分解链的出口和与热交换器上游的碾磨的铝土矿的混合之间进行。

4. 发明申请

WO2005095477A3 USE OF COPOLYMERS FOR REDUCING PRECIPITATES AND DEPOSITS FROM INORGANIC AND ORGANIC IMPURITIES IN THE BAYER PROCESS FOR THE EXTRACTION OF ALUMINIUM HYDROXIDE 审中-公开
标题翻译：共聚物的的使用，减少沉淀和表面的无机和有机杂质的拜耳法生产铝
公开(公告)号：WO2005095477A3
公开(公告)日：2006-02-02
申请号：PCT/EP2005002093
申请日：2005-02-28
申请人： STOCKHAUSEN CHEM FAB GMBH , FLOCKEN CHRISTIAN , KUBOTH DETLEF , POESCHMANN RAINER
发明人： FLOCKEN CHRISTIAN , KUBOTH DETLEF , POESCHMANN RAINER
IPC分类号： C08F2/00 , C08F220/00
CPC分类号： C01F7/066 , C01F7/0606 , C08F2/005
摘要： The invention relates to the use of water-soluble copolymers, formed from monoethylenically-unsaturated monomers, comprising acid groups (a) and at least one unsaturated double-bond containing hydrophobic component (b) in the Bayer process liquors as means for reducing precipitates and deposit formations arising from inorganic and organic impurities.
摘要翻译：从带有酸基团的单烯不饱和单体形成的水溶性共聚物的用途a）和至少一个不饱和双疏水组分b）在拜耳液作为试剂用于通过无机和有机污染物减少沉淀和形成沉积物键的。

5. 发明申请

WO1997036823A1 METHOD FOR RECOVERING SODIUM FROM ALKALINE INDUSTRIAL WASTE 审中-公开
标题翻译：从碱性工业废物中回收钠的方法
公开(公告)号：WO1997036823A1
公开(公告)日：1997-10-09
申请号：PCT/FR1997000513
申请日：1997-03-24
申请人： ALUMINIUM PECHINEY
发明人： ALUMINIUM PECHINEY , LAMERANT, Jean-Michel
IPC分类号： C01F07/06
CPC分类号： C01D1/28 , C01D1/04 , C01F7/0606 , C01F7/066
摘要： A method using an ion exchange resin for recovering sodium from alkaline industrial waste, particularly 'red sludge' and sodium-containing effluents from the manufacture of alumina hydrate according to the Bayer process, is disclosed. According to the method, an aqueous suspension of the alkaline waste (1), generally the 'red sludge', is contacted with an RH cationic resin (2), preferably carboxylic resin, for selectively and quantitatively binding the sodium to the resin (5), then the sodium is quantitatively removed in the form of NaOH (8) by displacement using a lime suspension (6), preferably milk-of-lime. The resin (9) to which the calcium is bound is then regenerated for reuse at the start of the process (2) by elution of the calcium in the form of CaCl2 (12) using a dilute hydrochloric acid solution (10).
摘要翻译：公开了一种使用离子交换树脂从碱性工业废物中回收钠的方法，特别是根据拜耳法制造氧化铝水泥的“红色污泥”和含钠废水。根据该方法，将碱性废物（1）的水性悬浮液（通常为“红色污泥”）与RH +阳离子树脂（2）（优选羧酸树脂）接触，以选择性和定量地将钠与树脂（5）中，然后通过使用石灰悬浮液（6），优选石灰乳酸置换，以NaOH（8）的形式定量除去钠。然后通过使用稀盐酸溶液（10）洗脱CaCl 2（12）形式的钙，在方法（2）开始时再结合钙结合的树脂（9）再利用。

6. 发明申请

WO2009114910A1 METHOD OF CONCENTRATING A BAYER PROCESS LIQUOR 审中-公开
标题翻译：浓缩贝氏过程液的方法
公开(公告)号：WO2009114910A1
公开(公告)日：2009-09-24
申请号：PCT/AU2009/000328
申请日：2009-03-19
申请人： ALCOA OF AUSTRALIA LIMITED , ILIEVSKI, Dean , HAY, Peter Stewart
发明人： ILIEVSKI, Dean , HAY, Peter Stewart
IPC分类号： B01D1/00 , C01F7/04
CPC分类号： B01D1/065 , B01D1/26 , B01D53/268 , C01F7/0606
摘要： A method for concentrating spent Bayer process liquor, the method comprising the steps of: Passing at least a portion of a calciner flue gas to a separator to provide a dehydrated gas stream and a water vapour enriched stream Contacting the spent Bayer process liquor with the water vapour enriched stream; and Evaporating water from the spent Bayer process liquor, thereby concentrating the spent Bayer process liquor.
摘要翻译：一种用于浓缩废拜耳处理液的方法，所述方法包括以下步骤：将至少一部分煅烧烟道气通入分离器中以提供脱水气流和富含水蒸气的物流将废拜勒处理液与水接触富蒸气流; 并从废拜勒处理液中蒸发水，从而浓缩用过的拜耳处理液。

7. 发明申请

WO2008045677A1 HYDROPHOBICALLY MODIFIED POLYAMINE SCALE INHIBITORS 审中-公开
标题翻译：疏水改性聚酰胺鳞片抑制剂
公开(公告)号：WO2008045677A1
公开(公告)日：2008-04-17
申请号：PCT/US2007/079473
申请日：2007-09-26
申请人： CYTEC TECHNOLOGY CORP , HEITNER, Howard, I. , SPITZER, Donald, P.
发明人： HEITNER, Howard, I. , SPITZER, Donald, P.
IPC分类号： C02F1/00 , C02F5/00 , C02F5/12 , C08G73/02 , C23F14/02
CPC分类号： C08G73/0206 , B03C1/30 , C01F7/0606 , C01F7/0633 , C02F5/12 , C02F2101/20 , C02F2103/28 , C02F2103/34 , C08G73/02 , C08G73/022 , C23F14/02 , H01F1/445
摘要： Hydrophobically modified Si-containing polyamines are useful for treating scale in industrial process streams. Preferred hydrophobically modified Si-containing polyamines are particularly useful for treating aluminosilicate scale in difficult-to-treat industrial process streams, such as in the Bayer alumina process streams, nuclear waste streams and kraft paper mill effluent streams.
摘要翻译：疏水改性的含Si多胺可用于处理工业流程中的结垢。优选的疏水改性的含Si多胺特别可用于在难处理的工业流中处理铝硅酸盐垢，例如在拜耳氧化铝工艺流，核废料流和牛皮纸浆流出物流中。

8. 发明申请

WO2007082447A1 一种提高拜耳法生产氧化铝循环效率的方法审中-公开
公开(公告)号：WO2007082447A1
公开(公告)日：2007-07-26
申请号：PCT/CN2006/003313
申请日：2006-12-06
申请人：中国铝业股份有限公司 , 顾松青 , 陈念贻 , 刘祥民 , 尹中林 , 陆文聪 , 刘伟 , 张良苗 , 齐利娟 , 白万全 , 李国兵 , 刘万城 , 韩东战
发明人：顾松青 , 陈念贻 , 刘祥民 , 尹中林 , 陆文聪 , 刘伟 , 张良苗 , 齐利娟 , 白万全 , 李国兵 , 刘万城 , 韩东战
IPC分类号： C01F7/14 , C01D1/34 , B01D11/04
CPC分类号： B01D11/04 , C01D1/34 , C01F7/0606 , C01F7/144
摘要： Disclosed is a method for extracting sodium hydroxide from a concentrated Bayer process circulating liquor through a liquid-liquid extraction process to decrease caustic ratio of evaporation mother liquor or decomposition mother liquor and thus to enhance seed decomposition and to improve Bayer process system cycle efficiency. Extractants such as C 6 -C 20 aliphatic alcohols (eg., n-octyl alcohol) and mixture thereof, alkyl phenols with carbon chain length of C 13 -C 18 , fluorinated alcohols, etc. are used to extract sodium hydroxide from a Bayer process circulating liquor, and then the extraction phase is back-extracted with water to give concentrated sodium hydroxide solution free of aluminum, which is then directly used to digest bauxites or to recover aluminum oxide and caustic alkali from red muds. Back-extracted extractants may be regenerated and recycled, the raffinate is continuely used as seeds to produce aluminum hydroxide via decomposition.

9. 发明申请

WO2006084328A1 ALUMINA RECOVERY 审中-公开
标题翻译：铝回收
公开(公告)号：WO2006084328A1
公开(公告)日：2006-08-17
申请号：PCT/AU2006/000172
申请日：2006-02-10
申请人： BILLITON ALUMINIUM AUSTRALIA PTY LTD , ROSENBERG, Stephen Philip
发明人： ROSENBERG, Stephen Philip
IPC分类号： C01F7/04 , C01F7/46 , C01F7/47
CPC分类号： C01F7/0646 , C01F7/004 , C01F7/005 , C01F7/0606 , C01P2002/22
摘要： A process for recovering alumina values from a first liquor having an initial concentration of aluminate ions and hydroxyl ions in solution is described. The first liquor is treated with a hydroxide of a metal other than aluminium to form an aluminium-bearing layered double hydroxide and produce a treated stream of first liquor, the treated stream of first liquor having a final concentration of aluminate ions less than the initial concentration of aluminate ions. The aluminium-bearing layered double hydroxide is separated from the treated stream of first liquor. Thereafter the clarified treated stream of first liquor is returned to a first location within an alumina refinery. The separated aluminium-bearing layered double hydroxide is contacted with a solution containing carbonate ions to form a slurry comprising an insoluble salt of the metal other than aluminium and a second liquor comprising aluminate ions released from the aluminium-bearing layered double hydroxide.
摘要翻译：描述了从溶液中具有初始浓度的铝酸盐离子和羟基离子的第一液体中回收氧化铝值的方法。第一种液体用除了铝之外的金属的氢氧化物处理以形成含铝的层状双氢氧化物并产生经处理的第一液体流，所处理的第一液体流的铝酸盐离子的最终浓度小于初始浓度的铝酸盐离子。将含铝层状双氢氧化物与经处理的第一液流分离。此后，澄清处理的第一液体物流返回到氧化铝精炼厂内的第一位置。将分离的含铝层状双氢氧化物与含有碳酸根离子的溶液接触以形成包含除铝以外的金属的不溶性盐的浆料和包含从含铝层状双氢氧化物释放的铝酸根离子的第二液体。

10. 发明申请

WO99067172A1 PROCESS FOR THE REMOVAL OF SILICA FROM AN ALKALINE SOLUTION CONTAINING SODIUM ALUMINATE 审中-公开
标题翻译：从含有铝酸钠的碱性溶液中除去二氧化硅的方法
公开(公告)号：WO99067172A1
公开(公告)日：1999-12-29
申请号：PCT/CA1999/000574
申请日：1999-06-18
IPC分类号： C01F7/06 , C01F7/47
CPC分类号： C01F7/0606 , C01F7/47
摘要： A process is described for removing dissolved silica from an alkaline solution containing sodium aluminate, e.g. a Bayer process solution. The process comprises contacting the alkaline solution with a slowly stirred bed of particles comprising coarse silica sand or a mixture of coarse silica sand and particles of sodalite, whereby the dissolved silica is precipitated out of solution to form a precipitation of desilication product dispersed in the solution and separating the desilication product solids from the alkaline solution to obtain a desilicated alkaline solution.
摘要翻译：描述了从含有铝酸钠的碱性溶液中除去溶解的二氧化硅的方法，例如，拜耳流程解决方案。该方法包括使碱性溶液与缓慢搅拌的包含粗二氧化硅砂或粗二氧化硅砂和方钠石颗粒混合物的颗粒的缓慢搅拌床接触，由此将溶解的二氧化硅从溶液中沉淀出来形成分散在溶液中的脱溶产物的沉淀并将脱硅产物固体与碱性溶液分离，得到脱溶碱性溶液。

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