公开(公告)号：EP2991935A4

公开(公告)日：2017-01-18

申请号：EP14791380

申请日：2014-05-02

申请人： EASYMINING SWEDEN AB

发明人： COHEN YARIV ,  ENFÄLT PATRIK

IPC分类号： C02F11/00 ,  C01B25/22 ,  C01B25/238 ,  C01B25/28 ,  C01B25/32 ,  C01B25/36 ,  C01B25/37 ,  C01B25/46 ,  C02F1/66 ,  C05B11/12 ,  C05B11/16 ,  C05F7/00

CPC分类号： 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

摘要： 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 aluminum 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.

公开(公告)号：EP2864249A4

公开(公告)日：2016-04-06

申请号：EP13806613

申请日：2013-06-19

申请人： EASYMINING SWEDEN AB

发明人： COHEN YARIV ,  ENFÄLT PATRIK

IPC分类号： C01B25/28 ,  B01D9/00 ,  B01D11/04 ,  C01B25/46 ,  C05B7/00 ,  C05B11/08 ,  C05B11/10 ,  C05C3/00

CPC分类号： C01B25/462 ,  B01D9/0013 ,  B01D11/04 ,  B01J19/24 ,  B01J2219/00049 ,  B01J2219/24 ,  C01B25/28 ,  C01B25/461 ,  C05B7/00 ,  C05B11/10

摘要： 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).

公开(公告)号：EP2435364A4

公开(公告)日：2013-06-19

申请号：EP09845317

申请日：2009-09-18

申请人： EASYMINING SWEDEN AB

发明人： COHEN YARIV

IPC分类号： C01B25/28 ,  B01D11/04 ,  C01B25/46 ,  C05B7/00 ,  C05B11/08 ,  C05C3/00

CPC分类号： C05B7/00 ,  C01B25/28 ,  C01B25/46

公开(公告)号：EP2137101A4

公开(公告)日：2013-06-12

申请号：EP08705283

申请日：2008-01-04

申请人： EASYMINING SWEDEN AB

发明人： COHEN YARIV

IPC分类号： C01B25/234 ,  B01J49/00 ,  C01B25/222 ,  C02F1/42 ,  C02F11/00 ,  C05F1/00 ,  C05F7/00

CPC分类号： C05B7/00 ,  B01J41/07 ,  B01J49/07 ,  C01B25/28 ,  C02F1/42 ,  C02F1/683 ,  C02F2101/105 ,  C02F2303/16 ,  C05C3/00 ,  C05D9/00 ,  C05F7/00