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1. 发明申请

WO1997038944A1 PROCESS FOR THE PREPARATION OF WATER PURIFICATION SOLUTIONS CONTAINING FERRIC IRON AND THE USE OF THE PRODUCT AS OF OBTAINED 审中-公开
标题翻译：制备含铁的水净化解决方案的过程以及产品的使用
公开(公告)号：WO1997038944A1
公开(公告)日：1997-10-23
申请号：PCT/FI1997000229
申请日：1997-04-15
申请人： KEMIRA CHEMICALS OY , JOKINEN, Simo , JÄFVERSTRÖM, Stefan , KENAKKALA, Timo , LHOTA, Oliva , TUOMARLA, Juhani , STENDAHL, Kjell
发明人： KEMIRA CHEMICALS OY
IPC分类号： C02F01/52
CPC分类号： C01G49/14 , C01G49/009 , C01P2006/10 , C01P2006/80 , C02F1/5245
摘要： The invention relates to a process for the preparation, from ferrous iron, of solution-form water treatment chemicals which contain ferric iron, to a granulated intermediate product obtained in the process, and to the use of the end products of the process. In the process, a raw material which contains ferrous iron in the form of an aqueous solution and possibly impurities is oxidized at an elevated temperature so that a precipitating, substantially pure ferric compound and a solution phase which contains the said impurities are obtained. The essential idea of the invention is that the precipitation is conducted in such a manner that part of the ferric iron precipitates in the form of goethite FeO(OH) or, in the presence of sulfate ions, in the form of hydronium jarosite H3OFe3(OH)6(SO4)2, while part of the ferric iron remains as a water-soluble ferric compound in the solution phase. Suitable raw materials include impure ferrous sulfate and pickling solutions which contain ferrous chloride. The precipitated pure ferric compound can further be separated by filtration or, alternatively, the slurry can be granulated to form a solid intermediate product and be later reslurried in water, whereupon a pure ferric compound can be separated by filtration. The pure ferric compound is dissolved in an acid, whereupon it is suitable as a coagulant for the purification of drinking water, and the solution phase is suitable as such as coagulant for the treatment of waster water.
摘要翻译：本发明涉及从二价铁制备含有三价铁的溶液型水处理化学品的方法，该方法涉及在该方法中获得的颗粒状中间体产品以及该方法的最终产品的使用。在该方法中，将含有水溶液和可能的杂质的亚铁的原料在升高的温度下被氧化，从而获得沉淀的，基本上纯的三价铁化合物和含有所述杂质的溶液相。本发明的基本思想是以这样的方式进行沉淀，使得铁的一部分以针铁矿FeO（OH）的形式沉淀，或者在硫酸根离子的存在下，以水合氢氯酸钾的方式H3OFe3（OH ）6（SO 4）2，而一部分三价铁在溶液相中保持为水溶性三价铁化合物。合适的原料包括不纯的硫酸亚铁和含有氯化亚铁的酸洗溶液。沉淀的纯铁化合物可以进一步通过过滤分离，或者，浆料可以造粒以形成固体中间产物，并稍后在水中再浆化，由此可以通过过滤分离纯的三价铁化合物。纯铁化合物溶解在酸中，因此适合用作净化饮用水的凝结剂，并且溶液相适合于用于处理废水的凝结剂。

2. 发明申请

WO1995006005A1 METHOD FOR RECOVERING AT LEAST ONE METAL FROM AN ACIDIFIED WASTE WATER SLUDGE 审中-公开
标题翻译：从一种酸化的废水污泥中回收至少一种金属的方法
公开(公告)号：WO1995006005A1
公开(公告)日：1995-03-02
申请号：PCT/FI1994000377
申请日：1994-08-26
申请人： KEMIRA OY , OINAS, Pekka , JOKINEN, Simo
发明人： KEMIRA OY
IPC分类号： C02F01/26
CPC分类号： C02F1/26 , C02F1/722
摘要： A method for recovering at least one metal from an acidified waste water sludge by liquid-liquid extraction, said method comprising: providing an acidified waste water sludge comprising ions of at least one metal and organic material, treating said acidified waste water sludge with an oxidizer to convert the organic material into a form that does not have an unfavourable effect on a subsequent liquid-liquid extraction, and subjecting said treated, acidified waste water sludge to a liquid-liquid extraction thereby obtaining an organic phase loaded with ions of said at least one metal, and subsequently recovering ions of said at least one metal from said organic phase.
摘要翻译：一种通过液 - 液萃取从酸化废水污泥中回收至少一种金属的方法，所述方法包括：提供含有至少一种金属和有机材料的离子的酸化废水污泥，用氧化剂处理所述酸化废水污泥将有机材料转化为对随后的液 - 液萃取不具有不利影响的形式，以及将所述经处理的酸化废水污泥进行液 - 液萃取，由此获得负载所述至少一种离子的有机相一种金属，随后从所述有机相中回收所述至少一种金属的离子。

3. 发明申请

WO1995032153A1 METHOD FOR PURIFYING IMPURE ALUMINIUM OXIDE BY THERMAL TREATMENT 审中-公开
标题翻译：通过热处理净化氧化铝的方法
公开(公告)号：WO1995032153A1
公开(公告)日：1995-11-30
申请号：PCT/FI1995000273
申请日：1995-05-19
申请人： KEMIRA CHEMICALS OY , JOKINEN, Simo , AITTA, Eero
发明人： KEMIRA CHEMICALS OY
IPC分类号： C01F07/46
CPC分类号： C01F7/56 , C01B15/023 , C01F7/74
摘要： The invention relates to a method for preparing impure aluminium oxide. In accordance with the invention, impure, granular or ground aluminium oxide is subjected to thermal treatment at a temperature of 500-900 DEG C. The thermally-treated aluminium oxide is dissolved in concentrated acid at a raised temperature, is diluted with water, and when necessary, is filtered and centrifugated in order to remove undissolved components. Aluminium salts purified with the method of the invention are suitable to be used as water purifying and retention agents.
摘要翻译：本发明涉及一种制备不纯的氧化铝的方法。根据本发明，在500-900℃的温度下对不纯的，颗粒状或研磨的氧化铝进行热处理。将热处理的氧化铝在升高的温度下溶解在浓酸中，用水稀释，必要时将其过滤并离心以除去未溶解的组分。用本发明方法纯化的铝盐适合用作水净化和保留剂。

4. 发明申请

WO1995032152A1 METHOD FOR PURIFYING IMPURE ALUMINIUM OXIDE BY EXTRACTION 审中-公开
标题翻译：通过萃取纯化氧化铝氧化物的方法
公开(公告)号：WO1995032152A1
公开(公告)日：1995-11-30
申请号：PCT/FI1995000272
申请日：1995-05-19
申请人： KEMIRA CHEMICALS OY , JOKINEN, Simo
发明人： KEMIRA CHEMICALS OY
IPC分类号： C01F07/46
CPC分类号： C02F1/5245 , C01B15/023 , C01F7/56 , C01F7/74
摘要： The invention relates to a method for purifying impure aluminium oxide. In accordance with the invention, impure aluminium oxide is finely ground, dissolved in a concentrated acid at a raised temperature, diluted with water, and an organic solvent is added to extract organic impurities. The phases are separated, the aqueous phase containing aluminium salts settled on the bottom is filtered or centrifugated to remove undissolved components, and is used as such or further purified. Part of the organic phase is taken to combustion and part is recycled for use as a solvent in the extraction step. Aluminium salts purified with the method of the invention are suitable to be used as water purifying and retention agents.
摘要翻译：本发明涉及纯化不纯的氧化铝的方法。根据本发明，将不纯的氧化铝精细研磨，在升高的温度下溶解在浓酸中，用水稀释，并加入有机溶剂以提取有机杂质。分离各相，将沉淀在底部的含有铝盐的水相过滤或离心以除去未溶解的组分，并原样使用或进一步纯化。将有机相的一部分置于燃烧中，并将部分再循环用作萃取步骤中的溶剂。用本发明方法纯化的铝盐适合用作水净化和保留剂。

5. 发明申请

WO1995006004A1 TREATMENT METHOD FOR WASTE WATER SLUDGE COMPRISING AT LEAST ONE METAL 审中-公开
标题翻译：一种包含至少一种金属的废水污泥处理方法
公开(公告)号：WO1995006004A1
公开(公告)日：1995-03-02
申请号：PCT/FI1994000376
申请日：1994-08-26
申请人： KEMIRA OY , STENDAHL, Kjell , JOKINEN, Simo
发明人： KEMIRA OY
IPC分类号： C02F01/26
CPC分类号： C02F9/00 , C02F1/26 , C02F11/004 , C02F2101/105 , C02F2101/20 , C02F2209/06 , C02F2301/08 , Y02W10/40 , Y10S210/912
摘要： A method for treating waste water sludge comprising at least one metal originating from a waste water treatment coagulant, and phosphorus and heavy metals in order to recover said at least one metal and phosphorus and to discharge said heavy metals, said method comprising: acidifying said waste water sludge to dissolve metals contained in the sludge; subjecting the acidified waste water sludge to liquid-liquid extraction for recovering at least a portion of said at least one metal; treating the raffinate of the extraction in a first precipitation stage with appropriate chemicals for precipitating heavy metals, and thereafter discharging the precipitate thereby leaving a solution having a decreased content of heavy metals; and treating the solution having a decreased content of heavy metals in a second precipitation stage with appropriate chemicals for precipitating phosphorus and thereafter recovering the precipitated phosphorus.
摘要翻译：一种处理废水污泥的方法，包括至少一种源自废水处理凝结剂的金属，以及磷和重金属，以回收所述至少一种金属和磷并排出所述重金属，所述方法包括：将所述废物酸化水泥污泥中溶解金属; 使酸化的废水污泥经过液 - 液萃取以回收所述至少一种金属的至少一部分; 在第一沉淀阶段用适当的沉淀重金属的化学品处理萃取液的萃余液，然后排出沉淀物，从而留下重金属含量降低的溶液; 并在第二沉淀阶段用合适的沉淀磷化学品处理重金属含量降低的溶液，然后回收沉淀的磷。

6. 发明申请

WO1994002424A1 PROCESS FOR PURIFYING SLUDGE CONTAINING MAINLY WATER 审中-公开
标题翻译：净化含水主要原料的方法
公开(公告)号：WO1994002424A1
公开(公告)日：1994-02-03
申请号：PCT/FI1993000302
申请日：1993-07-21
申请人： KEMIRA OY , JOKINEN, Simo , LAINE, Eija
发明人： KEMIRA OY
IPC分类号： C02F11/14
CPC分类号： C02F1/5245 , C02F1/5236 , C02F1/54
摘要： The invention relates to a method for improving purification of sludge containing mainly water, so that before a mechanical dewatering stage two components are added to the sludge in order to improve its dewatering properties. First a water-containing coagulating mixture is added, which contains a ferric salt and an organic polymer having a molecular weight of under 1 000 000, and then a polyelectrolyte with a molecular weight of above 3 000 000 is added.
摘要翻译：本发明涉及一种用于改进主要含水的污泥净化的方法，因此在机械脱水阶段之前，为了提高其脱水性能，将两种组分加入到污泥中。首先加入含水的凝结混合物，其中含有一种铁盐和一种分子量低于1 000 000的有机聚合物，然后加入分子量高于3 000 000的聚电解质。

7. 发明申请

WO1996020894A1 METHOD FOR TREATING WASTE WATER SLUDGE 审中-公开
标题翻译：处理废水污泥的方法
公开(公告)号：WO1996020894A1
公开(公告)日：1996-07-11
申请号：PCT/FI1995000717
申请日：1995-12-29
申请人： KEMIRA CHEMICALS OY , JOKINEN, Simo
发明人： KEMIRA CHEMICALS OY
IPC分类号： C02F11/00
CPC分类号： C02F9/00 , C02F1/66 , C02F11/004 , C02F2101/105 , C02F2101/20 , C02F2101/203 , C02F2209/06 , C02F2301/08 , Y10S210/912 , Y10S210/913
摘要： The invention relates to a method for treating waste water sludge comprising at least one metal originating from a waste water treatment coagulant, and phosphorus and heavy metals in order to recover said at least one metal and phosphorus and to discharge said heavy metals. In this method said waste water sludge is acidified to dissolve metals contained in the sludge thereby yielding an acidified sludge solution containing at least 1 % by weight of at least one metal to be recovered. In a first precipitation stage the pH of said acidified sludge solution is raised to precipitate at least one metal to be recovered as a phosphate, and thereafter the phosphate precipitate is separated, thereby leaving a solution comprising heavy metals. In a second precipitation stage the pH of said solution comprising heavy metals is raised and, if necessary, an appropriate chemical is added to precipitate heavy metals, and thereafter the precipitate is discharged.
摘要翻译：本发明涉及一种处理废水污泥的方法，包括至少一种源自废水处理凝结剂的金属，以及磷和重金属，以回收所述至少一种金属和磷并排出所述重金属。在该方法中，所述废水污泥被酸化以溶解污泥中所含的金属，从而产生含有至少1重量％的待回收的至少一种金属的酸化污泥溶液。在第一沉淀阶段，提高所述酸化污泥溶液的pH以沉淀至少一种作为磷酸盐回收的金属，然后分离磷酸盐沉淀物，由此留下重金属的溶液。在第二沉淀阶段，提高所述包含重金属的溶液的pH，并且如果需要，加入适当的化学物质以沉淀重金属，然后将沉淀物排出。

8. 发明申请

WO1995000446A1 METHOD FOR THE TREATMENT OF WATER TREATMENT SLUDGE 审中-公开
标题翻译：处理水处理污泥的方法
公开(公告)号：WO1995000446A1
公开(公告)日：1995-01-05
申请号：PCT/FI1994000262
申请日：1994-06-16
申请人： KEMIRA CHEMICALS OY , NILSSON, Rolf , JOKINEN, Simo
发明人： KEMIRA CHEMICALS OY
IPC分类号： C02F01/52
CPC分类号： C02F1/5245 , C02F11/14
摘要： A method for the treatment of sludge obtained from such a water treatment process wherein an aluminium or iron chemical is used as a coagulant, so as to reduce the amount of sludge, which method comprises the steps of: a) treating the water treatment sludge with an inorganic acid to produce an acidic sludge comprising dissolved aluminium or iron; b) optionally separating insoluble material from the acidic sludge to produce an acidic solution comprising dissolved aluminium or iron; c) treating said acidic sludge or said acidic solution with a +1-cation compound in the presence of sulphate ions in such conditions that the pH of the sludge or solution remains at a level where aluminium precipitates as an alunite compound or iron precipitates as a jarosite compound; and d) separating the precipitated alunite or jarosite compound from the remaining sludge.
摘要翻译：一种用于处理由这样的水处理工艺获得的污泥的方法，其中使用铝或铁化学品作为凝结剂，以减少污泥的量，该方法包括以下步骤：a）用水处理污泥产生包含溶解的铝或铁的酸性污泥的无机酸; b）任选地从酸性污泥中分离不溶物质以产生包含溶解的铝或铁的酸性溶液; c）在硫酸根离子的存在下，用这种条件使用+ 1-阳离子化合物处理所述酸性污泥或所述酸性溶液，使得污泥或溶液的pH保持在铝沉淀作为铝酸盐化合物或铁沉淀的水平，黄钾铁矾和d）将沉淀的铝酸钠或黄钾铁矾合成物与剩余的污泥分离。

9. 发明申请

WO1997034836A1 A METHOD FOR IMPROVING THE APPLICABILITY OF A WATER TREATMENT CHEMICAL, AND A COAGULANT 审中-公开
标题翻译：一种改善水处理化学品和香料的适用性的方法
公开(公告)号：WO1997034836A1
公开(公告)日：1997-09-25
申请号：PCT/FI1997000173
申请日：1997-03-17
申请人： KEMIRA CHEMICALS OY , JOKINEN, Simo , AITTA, Eero
发明人： KEMIRA CHEMICALS OY
IPC分类号： C02F01/52
CPC分类号： C02F1/5236
摘要： The invention relates to a method for improving the applicability of a water treatment chemical as a coagulant in a water treatment process comprising a flocculation step wherein the coagulant in the form of an aqueous solution is added to the water to be purified, said water treatment chemical containing an iron and/or aluminium compound as the main component and soluble bivalent manganese Mn(II) as an impurity. According to the invention a concentrated aqueous solution of said water treatment chemical is subjected to oxidation (2) by means of an oxidant to obtain a concentrated aqueous solution to be used as said coagulant or the obtained concentrated aqueous solution is converted into a solid product, said product being subsequently converted into an aqueous solution to be used as said coagulant, said oxidant being used in an amount at least sufficient to oxidize the soluble MN(II) present in the water treatment chemical to manganese dioxide MnO2 or permanganate MnO4 , said MnO2 being flocculated away in the subsequent flocculation step (3), and said MnO4 acting as an oxidizer in the water treatment process.
摘要翻译：本发明涉及一种改善水处理化学品作为絮凝剂的水处理方法在水处理方法中的适用性的方法，该方法包括絮凝步骤，其中将水溶液形式的凝结剂加入待提纯的水中，所述水处理化学品含有铁和/或铝化合物作为主要成分和可溶性二价锰Mn（II）作为杂质。根据本发明，所述水处理化学品的浓缩水溶液通过氧化剂进行氧化（2），得到用作所述凝结剂的浓缩水溶液，或将所得浓缩水溶液转化为固体产物，所述产物随后转化为用作所述凝结剂的水溶液，所述氧化剂的用量至少足以将存在于水处理化学品中的可溶性MN（II）氧化成二氧化锰MnO 2或高锰酸盐MnO 4 - ，所述MnO 2在随后的絮凝步骤（3）中絮凝，并且所述MnO 4 - 在水处理过程中用作氧化剂。

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