公开(公告)号：EP1954630A2

公开(公告)日：2008-08-13

申请号：EP06824257.7

申请日：2006-11-09

申请人： Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

发明人： BROUWER, Jan, Peter

IPC分类号： C01F11/12

CPC分类号： C01B33/187 ,  C01B13/36 ,  C01B33/142 ,  C01F5/14 ,  C01F11/12

摘要： The invention provides a process for preparing a metal hydroxide comprising the steps of: (a) providing particles of a metal silicate; (b) mixing the particles with a mineral acid solution to obtain a slurry which comprises precipitated silica; (c) separating the precipitated silica from the slurry to obtain a remaining solution; (d) increasing the pH of the remaining solution to such an extent that a metal hydroxide is formed; (e) separating the metal hydroxide so obtained from the remaining solution; and (f) adding to the remaining solution obtained in step (e) an acid solution, thereby forming a salt containing solution, or (g) removing at least part of the base added in step (d) from the remaining solution obtained in step (e), thereby forming a salt containing solution.

公开(公告)号：EP4421059A1

公开(公告)日：2024-08-28

申请号：EP23158719.7

申请日：2023-02-27

申请人： Sabic Agri-Nutrients Company

发明人： Al-Rabhi, Mohamed ,  Mamedov, Aghaddin ,  Hegde, Ravi

IPC分类号： C05D9/02 ,  C01F11/12 ,  C01F11/18 ,  C02F1/42 ,  C04B18/14 ,  C05G3/80 ,  C05G5/30

CPC分类号： C05D9/02 ,  C05G3/80 ,  C05G5/30 ,  C04B18/142 ,  C02F1/42 ,  C01F11/18 ,  C01F11/12 ,  C04B40/0231 ,  C04B28/10 ,  C04B18/141 ,  C05D3/00

摘要： Disclosed herein are methods of forming a soil amendment from metal slag, the method may comprise: increasing sodium in a bentonite clay by reacting bentonite clay and sodium salt to provide ion-exchanged sodium bentonite clay, wherein the bentonite clay comprises both sodium and calcium; feeding carbon dioxide through a reactor containing a mixture of the metal slag and the ion-exchanged sodium bentonite clay; wherein sodium ions of the ion exchanged bentonite clay transfers the carbon dioxide to a calcium silicate phase of the metal slag; reacting the ion-exchanged sodium bentonite clay with calcium silicate to consume the sodium carbonate of the ion-exchanged sodium bentonite clay and provide sodium silicate and calcium carbonate; reacting the sodium silicate to provide sodium carbonate and silicon dioxide; and combining the calcium carbonate and silicon dioxide to form the soil amendment, wherein the metal slag is a calcium slag silicate.

公开(公告)号：EP2781485A4

公开(公告)日：2015-08-12

申请号：EP12850399

申请日：2012-11-09

申请人： NAGOYA INST TECHNOLOGY

发明人： FUJI MASAYOSHI ,  SHIRAI TAKASHI ,  RIVERA VIRTUDAZO RAYMOND V ,  TAKAI CHIKA

IPC分类号： C01B33/24

CPC分类号： C01B33/24 ,  C01B13/32 ,  C01F11/12 ,  Y10T428/2982

公开(公告)号：EP2781485A1

公开(公告)日：2014-09-24

申请号：EP12850399.2

申请日：2012-11-09

申请人： Nagoya Institute Of Technology

发明人： FUJI, Masayoshi ,  SHIRAI, Takashi ,  RIVERA VIRTUDAZO, Raymond V. ,  TAKAI, Chika

IPC分类号： C01B33/24

CPC分类号： C01B33/24 ,  C01B13/32 ,  C01F11/12 ,  Y10T428/2982

摘要： [Object] To provide a method for producing hollow nanoparticles each having a shell mainly including calcium silicate and having a particle size on the order of nanometers, where the method can freely control the particle size, shape, and shell thickness of the hollow nanoparticles.
[Solution] The hollow nanoparticles are produced by performing a first step of forming a core-shell particle having a core particle containing calcium and, on a surface thereof, a coating layer including amorphous silica; a second step of hydrothermally converting the coating layer of the core-shell particle into a shell mainly including calcium silicate; and a third step of removing the core particle from the core-shell particle while allowing the shell of the core-shell particle to remain.

公开(公告)号：EP1785396A1

公开(公告)日：2007-05-16

申请号：EP05077552.7

申请日：2005-11-09

申请人： Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

发明人： Brouwer, Jan Peter

IPC分类号： C01F11/12 ,  C01F5/14 ,  C01B33/187

CPC分类号： C01B33/187 ,  C01B13/36 ,  C01B33/142 ,  C01F5/14 ,  C01F11/12

摘要： The invention provides a process for preparing a metal hydroxide comprising the steps of:
(a) providing particles of a metal silicate;
(b) mixing the particles with a mineral acid solution to obtain a slurry which comprises precipitated silica;
(c) separating the precipitated silica from the slurry to obtain a remaining solution;
(d) increasing the pH of the remaining solution to such an extent that a metal hydroxide is formed; and
(e) separating the metal hydroxide so obtained from the remaining solution.

摘要翻译： 本发明提供一种制备金属氢氧化物的方法，包括以下步骤：（a）提供金属硅酸盐的颗粒; （b）将所述颗粒与无机酸溶液混合以获得包含沉淀二氧化硅的浆料; （c）从沉淀物中分离沉淀的二氧化硅以获得剩余的溶液; （d）将剩余溶液的pH提高至形成金属氢氧化物的程度; 和（e）从剩余的溶液中分离得到的金属氢氧化物。