-
公开(公告)号：EP0952776B1
公开(公告)日：2003-08-06
申请号：EP95908078.9
申请日：1995-01-18
-
公开(公告)号：EP3976558A1
公开(公告)日：2022-04-06
申请号：EP20814126.7
申请日：2020-05-27
申请人： Easymining Sweden AB
发明人： COHEN, Yariv , ENFÄLT, Patrik , SVÄRD, John , HÖGBERG, Carl-Johan
-
公开(公告)号：EP3331841B1
公开(公告)日：2021-03-17
申请号：EP16822283.4
申请日：2016-08-03
IPC分类号： C05B7/00 , C01B25/238 , C05B11/00
-
-
公开(公告)号：EP3707097A1
公开(公告)日：2020-09-16
申请号：EP18825742.2
申请日：2018-11-09
IPC分类号： C01B25/01 , C01B25/222 , C05B11/00 , C08F20/06
-
6.发明公开
公开(公告)号：EP3331841A2
公开(公告)日：2018-06-13
申请号：EP16822283.4
申请日：2016-08-03
申请人： OCP SA , Samrane, Kamal , Kossir, Abdelaali , Khouloud, Mehdi
IPC分类号： C05B7/00 , C01B25/238 , C05B11/00
摘要： The invention relates to a method for manufacturing an ammonium phosphate fertilizer from a phosphoric acid aqueous solution that has less than 50% P205 concentration and is obtained by wet inorganic phosphate treatment, said phosphoric acid containing traces of cadmium. Said method includes the following steps: (a) neutralizing said phosphoric acid solution (1) with ammonia (3) up to a molar ratio N/P of between 0.1 and 0.8; (b) reacting said partially neutralized solution (4) with a sulfide source (6) so as to form a cadmium sulfide precipitate (9); (c) separating said precipitate (9) so as to obtain a refined ammoniated phosphoric acid solution (10), and (d) ammoniating and granulating said refined solution (10) so as to form said fertilizer (12).
-
公开(公告)号：EP1567463A1
公开(公告)日：2005-08-31
申请号：EP03773331.8
申请日：2003-11-18
发明人： MCCONCHIE, David , CLARK, Malcolm, William , DAVIES-MCCONCHIE, Fiona, Gaye , WALSH, Stephen, Robert
IPC分类号： C05B11/00
摘要： The present invention relates to fertiliser composition comprising from 95% to 1% by weight, based on the total weight of the fertiliser composition, of a phosphate fertiliser and from 5% to 99% by weight, based on the total weight of the fertiliser composition, of a phosphate binding substance selected from the group consisting of red mud that has been at least partially reacted with a material comprising at least one of calcium ions and magnesium ions, red mud that has been at least partially neutralised by addition of acid, red mud that has been at least partially neutralised by treatment with carbon dioxide, and red mud that has been at least partially neutralised by addition of at least one mineral containing at least one of calcium ions and magnesium ions, the phosphate binding substance having a reaction pH, when mixed with 5 times its weight of water, of less than 10.5. There are further provided methods for preparing the fertiliser and methods for fertilising soils.
-
公开(公告)号：EP3856704B1
公开(公告)日：2023-10-04
申请号：EP19779713.7
申请日：2019-09-18
-
公开(公告)号：EP3856704A1
公开(公告)日：2021-08-04
申请号：EP19779713.7
申请日：2019-09-18
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.007 秒)
