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公开(公告)号：WO2011025440A1
公开(公告)日：2011-03-03
申请号：PCT/SE2010/050899
申请日：2010-08-20
Applicant: EASYMINING SWEDEN AB , COHEN, Yariv
Inventor： COHEN, Yariv
CPC classification number: C01F7/56 , C22B3/10 , C22B3/42 , Y02P10/234
Abstract: Phosphorus containing material is treated with mineral acid to form a leach-solution (7) comprising of trivalent aluminum, phosphorus and optionally trivalent iron. Aluminum and possibly iron is extracted by adsorbing in a scavenger (22) having an affinity for cations and by releasing aluminum and iron into a strip-solution during regeneration. The regeneration is performed with hydrochloric acid (31). Anionic metal chloride complexes are extracted from the hydrochloric acid strip-solution (32) by adsorbing in a scavenger (42) having affinity for anionic metal chlorides. Metal chlorides are recovered from the loaded scavenger (46) by elution with water (49). Gaseous hydrogen chloride (38) is added to the raffinate (33) from the metal chloride extraction. Crystalline aluminum chloride hexahydrate (37) is separated. The hydrochloric acid strip-solution (31) is recycled and used for stripping a scavenger (26) loaded with aluminum and/or iron. The depleted ash leach-solution (9) is treated for phosphorus recovery and preferably reused for dissolution of a phosphorus containing material.
Abstract translation: 含磷材料用无机酸处理以形成包含三价铝，磷和任选的三价铁的浸出溶液（7）。 铝和可能的铁通过吸附在对阳离子具有亲和性的清除剂（22）中并通过在再生期间将铝和铁释放到带状溶液中来提取。 用盐酸（31）进行再生。 通过吸附在对阴离子金属氯化物具有亲和性的清除剂（42）中，从盐酸带状溶液（32）中提取阴离子金属氯化物络合物。 通过用水洗脱从负载的清除剂（46）中回收金属氯化物（49）。 从金属氯化物萃取物向残液（33）中加入气态氯化氢（38）。 分离结晶氯化铝六水合物（37）。 将盐酸带状溶液（31）再循环并用于汽提载有铝和/或铁的清除剂（26）。 处理贫化灰渣溶液（9）进行磷回收处理，优选重新用于溶解含磷材料。
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公开(公告)号：WO2010138045A1
公开(公告)日：2010-12-02
申请号：PCT/SE2009/051041
申请日：2009-09-18
Applicant: EASYMINING SWEDEN AB , COHEN, Yariv
Inventor： COHEN, Yariv
Abstract: A method for production of ammonium phosphates comprises providing (210) of a phosphorus-loaded water immiscible liquid phase, adding (212) of anhydrous ammonia to the water immiscible liquid phase, precipitating (214) of mono-ammonium phosphate and/or di-ammonium phosphate from the water immiscible liquid phase and extracting (218) of the precipitated mono-ammonium phosphate and/or di-ammonium phosphate from the water immiscible liquid phase. The method further comprises controlling (216) of a temperature of the water immiscible liquid phase during the adding (212) and precipitating (214) to a predetermined temperature interval.
Abstract translation: 制备磷酸铵的方法包括提供（210）含磷负载的水不混溶的液相，向无水混合液相中加入（212）无水氨，将（214）的磷酸一铵和/或二 - 从水不混溶液相中提取磷酸铵，并从水不混溶液相中提取（218）沉淀的磷酸一铵和/或磷酸二铵。 该方法还包括在加入（212）和沉淀（214）期间控制（216）水不混溶液相的温度至预定的温度间隔。
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公开(公告)号：WO2022115021A1
公开(公告)日：2022-06-02
申请号：PCT/SE2021/051165
申请日：2021-11-23
Applicant: EASYMINING SWEDEN AB
Inventor： COHEN, Yariv , VAN DER WERF, Angela , WESTLUND, Viktoria , TUNSU, Cristian , ROYEN, Hugo
Abstract: A method for recovery of commercial substances from apatite mineral comprises dissolving (S10) of apatite mineral in an acid comprising hydrochloride. The dissolution gives a first liquid solution comprising phosphate, calcium and chloride ions. The first liquid solution is treated (S20) into a second liquid solution comprising calcium and chloride ions. This treatment in turn comprises extracting (S22) of a major part of the phosphate ions with an organic solvent. A bleed solution is removed (S30) from the second solution. Solid gypsum comprising at least 70% in a di-hydrate crystal form is precipitated (S40) from the second solution. This precipitation of solid gypsum comprises adding (S42) the second solution and sulfuric acid simultaneously into a continuous-stirred reactor in the presence of gypsum crystals. Thereby, the precipitation of solid gypsum gives a third liquid solution comprising hydrochloride. An arrangement for recovery of commercial substances from apatite mineral is also presented.
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公开(公告)号：WO2021251891A1
公开(公告)日：2021-12-16
申请号：PCT/SE2021/050560
申请日：2021-06-11
Applicant: EASYMINING SWEDEN AB
Inventor： COHEN, Yariv , TUNSU, Christian , VAN DER WERF, Angela , BOMAN, Daniel
Abstract: An arrangement (100) for production of fully soluble, pure and well-defined mono- or di-potassium phosphates, comprises an extraction section (10), a stripping section (20) and end treatment arrangements (90). The extraction section performs a liquid-liquid extraction of phosphate between a feed liquid (1) comprising phosphoric acid. The stripping section performs a liquid-liquid extraction of phosphate between solvent loaded with phosphate and a strip solution (4). The solvent depleted in phosphate is recirculated to the extraction section for further extraction of phosphate. The strip solution is an aqueous potassium phosphate solution. The end treatment arrangements comprise a source of potassium base (60), an adding arrangement (70), a cooling arrangement (50), a precipitate remover (40) and a recirculation system (80).
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公开(公告)号：WO2013191639A1
公开(公告)日：2013-12-27
申请号：PCT/SE2013/050736
申请日：2013-06-19
Applicant: EASYMINING SWEDEN AB
Inventor： COHEN, Yariv , ENFÄLT, Patrik
CPC classification number: C01B25/462 , B01D9/0013 , B01D11/04 , B01J19/24 , B01J2219/00049 , B01J2219/24 , C01B25/28 , C01B25/461 , C05B7/00 , C05B11/10
Abstract: An arrangement (100) for production of fully soluble, pure and well defined mono-or di-ammonium phosphates, comprises an extraction section (10), a stripping section (20) and end treatment arrangements (90). The extraction section performs a liquid-liquid extraction of phosphate between a feed liquid (1) comprising phosphoric acid and being essentially free from nitrate ions, and a solvent (5) having a solubility in water of less than 2%. The stripping section performs a liquid-liquid extraction of phosphate between solvent loaded with phosphate and a strip solution (4). The solvent depleted in phosphate is recirculated to the extraction section for further extraction of phosphate. The strip solution is an aqueous ammonium phosphate solution, wherein at least 80% of the ammonium phosphate is monoammonium phosphate and/or wherein the solvent is a water-immiscible alcohol. The end treatment arrangements comprise a source of ammonia (60), an adding arrangement (70), a cooling arrangement (50), a precipitate remover (40) and a recirculation system (80).
Abstract translation: 用于生产完全溶解，纯净且定义好的磷酸二氢铵或磷酸二铵的装置（100）包括萃取部分（10），汽提部分（20）和末端处理装置（90）。 提取部分在磷酸基本上不含硝酸根离子的进料液（1）和在水中的溶解度小于2％的溶剂（5）之间进行磷 - 液萃取。 汽提段在负载磷酸盐和带状溶液（4）的溶剂之间进行磷酸液体液体萃取。 将贫磷酸盐的溶剂再循环至提取部分以进一步提取磷酸盐。 带状溶液是磷酸铵水溶液，其中至少80％的磷酸铵是磷酸氢二铵和/或其中溶剂是与水不混溶的醇。 末端处理装置包括氨源（60），添加装置（70），冷却装置（50），沉淀物去除器（40）和再循环系统（80）。
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Patent Agency Ranking
公开(公告)号：WO2019125293A1
公开(公告)日：2019-06-27
申请号：PCT/SE2018/051327
申请日：2018-12-18
Applicant: EASYMINING SWEDEN AB
Inventor： COHEN, Yariv , ENFÄLT, Patrik , SVÄRD, John
Abstract: Amethod for decomposing struvite comprises dissolving of a feed material comprising struvite (100) in HCl(11), forming an acid solution(103). Phosphorus is removed from the acid solution, forming a phosphorus-depleted solution(106). A neutralized solution (108) is formed by adding a base (107) to the phosphorus-depleted solution. Achloride salt solution(110)is formed from the neutralized solution.An arrangement (1) for decomposing struvite comprises a dissolver container(10), a phosphorus removing section(20), a neutralizer container (70) and achloride salt solution handlingsection(79). The dissolver container is configured for dissolving a feed material comprising struvite in HCl. The phosphorus removing section is configured for removing phosphorus from the acid solution. The neutralizer container is configured for forming a neutralized solution by adding a base to the phosphorus-depleted solution. The chloride salt solution handlingsection is configured for forming a chloride salt solutionfrom the neutralized solution.
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7.发明申请PRODUCTION OF PHOSPHATE COMPOUNDS FROM MATERIALS CONTAINING PHOSPHORUS AND AT LEAST ONE OF IRON AND ALUMINIUM 审中-公开含有磷和至少一种铁和铝的材料生产磷酸盐化合物
公开(公告)号：WO2014178788A1
公开(公告)日：2014-11-06
申请号：PCT/SE2014/050545
申请日：2014-05-02
Applicant: EASYMINING SWEDEN AB
Inventor： COHEN, Yariv , ENFÄLT, Patrik
CPC classification number: C01B25/32 , C01B25/28 , C01B25/36 , C01B25/375 , C01F7/34 , C01F7/56 , C01F7/74 , C01F11/46 , C01G1/12 , C01G45/02 , C01G49/0009 , C01G49/02 , C01G49/10 , C01G49/14 , C02F1/66 , C02F11/00 , C02F2101/105 , C05B11/12 , C05B11/16 , C05F7/00 , Y02A40/213
Abstract: A method for concentration of phosphate compounds comprises dissolving (205) of sludge ash in hydrochloric acid. Insoluble residues are separated (210), thereby forming a first leach solution. A mole ratio of phosphorus to a sum of ferric iron and aluminium in the first leach solution is controlled (215) to be larger than 1. A base is added (220) to the first leach solution in an amount causing precipitation of phosphate compounds. The precipitated phosphate compounds are removed (225) from the first leach solution. Sulphuric acid is added (240) to the first leach solution, causing precipitation of sulphate compounds. The precipitated sulphate compounds are separated (245) from the first leach solution. At least a part of the leach solution is recycled (248) as the hydrochloric acid used for the dissolving of sludge ash. Further methods for processing the precipitated phosphate compounds are presented as well as arrangements for performing the methods.
Abstract translation: 磷酸盐化合物的浓缩方法包括将淤泥灰（205）溶解在盐酸中。 不溶性残渣被分离（210），从而形成第一浸出溶液。 控制第一浸出溶液中磷与铁和铝的总和的摩尔比（215）大于1.将碱（220）以引起磷酸盐化合物沉淀的量向第一浸出溶液中加入（220）。 从第一浸出溶液中除去沉淀的磷酸盐化合物（225）。 向第一浸出溶液中加入硫酸（240），导致硫酸盐化合物的沉淀。 沉淀的硫酸盐化合物与第一浸出溶液分离（245）。 浸出溶液的至少一部分被循环（248），作为用于溶解污泥灰的盐酸。 提出了处理沉淀的磷酸盐化合物的其它方法以及用于进行该方法的布置。
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公开(公告)号：WO2022173349A1
公开(公告)日：2022-08-18
申请号：PCT/SE2022/050132
申请日：2022-02-08
Applicant: EASYMINING SWEDEN AB
Inventor： TUNSU, Cristian , VAN DER WERF, Angela , ROYEN, Hugo , COHEN, Yariv , SVÄRD, John
Abstract: A method for chemical processing of sewage sludge ash comprises dissolving (S10) a start material, emanating from sewage sludge ash, in an acid comprising hydrochloric acid. The start material comprising at least silicon and iron compounds. Undissolved residues are separated (S12), whereby a leachate remains. The amount of colloidal silica in the dissolved sewage sludge ash is controlled (S15). At least one of iron and phosphorus is extracted (20) from the leachate by liquid-liquid extraction with an organic solvent. At least a part of a raffinate at least partly depleted in at least one of iron and phosphorus originating from the step of extracting at least one of iron and phosphorus is recirculated (S90) for dissolving the start material, emanating from sewage sludge ash. The recirculated part of the raffinate at least partly depleted in at least one of iron and phosphorus comprises chloride ions. An arrangement for chemical processing of sewage sludge ash is also disclosed.
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公开(公告)号：WO2020256622A1
公开(公告)日：2020-12-24
申请号：PCT/SE2020/050605
申请日：2020-06-11
Applicant: EASYMINING SWEDEN AB
Inventor： COHEN, Yariv , ENFÄLT, Patrik , SVÄRD, John , HÖGBERG, Carl-Johan , NORDSTRÖM, Emilie
Abstract: A method for decomposing struvite comprises dissolving (S10) of a feed material comprising struvite in a mineral acid. Thereby a solution having an acid pH is formed. Magnesium is removed (S30) from the solution. The removing of magnesium comprises increasing (S32) a pH of the solution to a pH in the range of 4.5 to 6, precipitating (S34) magnesium compounds that do not comprise ammonium, and separating (S36) the precipitated magnesium compounds from the solution. Thereby, the solution, after the removing of magnesium, comprises an ammonium salt of the mineral acid. An arrangement for performing such a method is also disclosed. Also, a method and arrangement for recovering at least nitrogen from waste material, based on the decomposing of struvite are disclosed.
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公开(公告)号：WO2020242366A1
公开(公告)日：2020-12-03
申请号：PCT/SE2020/050533
申请日：2020-05-27
Applicant: EASYMINING SWEDEN AB
Inventor： COHEN, Yariv , ENFÄLT, Patrik , SVÄRD, John , HÖGBERG, Carl-Johan
Abstract: A method for decomposing struvite comprises dissolving (S10), in sulphuric acid, of a feed material comprising struvite, thereby forming a solution. Phosphate ions are removed (S20) from the solution. Magnesium compounds are precipitated (S40) from the solution, after the removing of phosphate ions. This precipitation of magnesium compounds is caused by increasing a pH of the solution. By the precipitation of magnesium compounds a solution comprising ammonium sulphate is formed. An arrangement for performing the method is also disclosed. Also, a method for recovering at least one of nitrogen, phosphorus and potassium from waste material comprises precipitating of struvite from an initial liquid of waste material, by adding a magnesium source to said initial liquid of waste material and adjusting a pH to an alkaline pH, separating the precipitated struvite from the initial liquid of waste material and decomposing the separated struvite by a method according to the above concepts.
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