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1. 发明授权

US10011495B2 Process for preparing precipitated silica 有权
公开(公告)号：US10011495B2
公开(公告)日：2018-07-03
申请号：US14373801
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain
IPC分类号： C01B33/12 , C01B33/193
CPC分类号： C01B33/128 , C01B33/193
摘要： A process for preparing precipitated silica in which: (i) an stock having a concentration of alkali metal M silicate less than 20 g/L is formed; (ii) acid is added to said initial stock, until at least 50% of the amount of M2O is neutralized; (iii) silicate and acid are simultaneously added, such that the degree of consolidation is greater than 4 and at most 100; and (v) acid is added until a pH value of between 2.5 and 5.3 is obtained, wherein the acid used in at least one of the process steps is a concentrated acid.

2. 发明授权

US09758645B2 Use of a precipitated silica containing titanium and a specific coupling agent in an elastomer composition 有权
公开(公告)号：US09758645B2
公开(公告)日：2017-09-12
申请号：US14439107
申请日：2013-10-29
申请人： RHODIA OPERATIONS
发明人： Laurent Guy , Dominique Dupuis , Emmanuelle Allain
IPC分类号： C08L7/00 , C08K5/53
CPC分类号： C08L7/00 , C08K5/53 , C08K13/02 , C08L9/00 , C08L2201/02 , C08L19/006
摘要： The invention concerns the combined use, in an elastomer composition preferably comprising an isoprene elastomer, a precipitated silica containing titanium and a specific conjugated diene compound, such as a conjugated diene phosphonate or phosphinate compound. It also concerns the elastomer compositions obtained and the items produced from said compositions.

3. 发明申请

US20150284546A1 Use of a precipitated silica containing titanium and a specific coupling agent in an elastomer composition 有权
标题翻译：在弹性体组合物中使用含有钛和特定偶联剂的沉淀二氧化硅
公开(公告)号：US20150284546A1
公开(公告)日：2015-10-08
申请号：US14439107
申请日：2013-10-29
申请人： RHODIA OPERATIONS
发明人： Laurent Guy , Dominique Dupuis , Emmanuelle Allain
IPC分类号： C08L7/00
CPC分类号： C08L7/00 , C08K5/53 , C08K13/02 , C08L9/00 , C08L2201/02 , C08L19/006
摘要： The invention concerns the combined use, in an elastomer composition preferably comprising an isoprene elastomer, a precipitated silica containing titanium and a specific conjugated diene compound, such as a conjugated diene phosphonate or phosphinate compound. It also concerns the elastomer compositions obtained and the items produced from said compositions.
摘要翻译：本发明涉及组合使用的弹性体组合物，优选包括异戊二烯弹性体，含钛的沉淀二氧化硅和特定共轭二烯化合物如共轭二烯膦酸盐或次膦酸盐化合物。它还涉及获得的弹性体组合物和由所述组合物产生的物品。

4. 发明授权

US10011494B2 Process for preparing precipitated silica 有权
公开(公告)号：US10011494B2
公开(公告)日：2018-07-03
申请号：US14373799
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain , Sylvaine Neveu
IPC分类号： C01B33/12 , C01B33/193
CPC分类号： C01B33/128 , C01B33/193
摘要： A process for preparing precipitated silica in which: (i) an aqueous stock having a concentration of alkali metal silicate less than 20 g/L is formed; (ii) acid is added to said initial stock, until at least 50% of the amount of M2O is neutralized; (iii) silicate and acid are simultaneously added, such that the degree of consolidation is greater than 4 and at most 100; (iv) silicate and acid are simultaneously added, such that the pH of the reaction medium is between 7 and 10; (v) acid is added until a pH value of between 2.5 and 5.3 is obtained; and (vi) the reaction medium is placed in contact with acid and silicate, such that the pH is between 2.5 and 5.3, wherein the acid used in at least one of the process steps is a concentrated acid.

5. 发明授权

US09695053B2 Process for preparing precipitated silica having specific morphology, particle size and porosity 有权
公开(公告)号：US09695053B2
公开(公告)日：2017-07-04
申请号：US14373791
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain , Sylvaine Neveu
IPC分类号： C01B33/12 , C01B33/193
CPC分类号： C01B33/128 , C01B33/193
摘要： The invention relates to a process for the preparation of precipitated silica formed of aggregates of large primary silica particles, at the surface of which occur small primary silica particles, in which the acid used in at least one of the process steps is a concentrated acid.

6. 发明申请

US20150037235A1 Process for preparing precipitated silica 有权
标题翻译：沉淀二氧化硅的制备方法
公开(公告)号：US20150037235A1
公开(公告)日：2015-02-05
申请号：US14373797
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain , Sylvaine Neveu
IPC分类号： C01B33/12
CPC分类号： C01B33/128 , C01B33/193
摘要： A process for preparing precipitated silicas in which: (i) an aqueous stock with a pH of between 2 and 5 is formed; (ii) silicate and acid are simultaneously added to said stock, such that the pH of the resulting reaction medium is maintained between 2 and 5; (iii) silicate is added until a pH value of between 7 and 10 is obtained; (iv) silicate and acid are simultaneously added, such that the pH of the reaction medium is between 7 and 10; (v) acid is added until a pH value of between 2.5 and 5.3 is obtained; and (vi) the reaction medium is placed in contact with acid and silicate, such that the pH is between 2.5 and 5.3; wherein the acid used in at least one of the process steps is a concentrated acid.
摘要翻译：一种制备沉淀二氧化硅的方法，其中：（i）形成pH为2至5的水性原料; （ii）将硅酸盐和酸同时加入到所述原料中，使得所得反应介质的pH保持在2和5之间; （iii）加入硅酸盐直到获得7至10的pH值; （iv）同时加入硅酸盐和酸，使得反应介质的pH为7至10; （v）加入酸直至获得2.5至5.3的pH值; 和（vi）使反应介质与酸和硅酸盐接触，使得pH在2.5和5.3之间; 其中在至少一个工艺步骤中使用的酸是浓酸。

7. 发明授权

US09695054B2 Process for preparing precipitated silica 有权
公开(公告)号：US09695054B2
公开(公告)日：2017-07-04
申请号：US14373797
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain , Sylvaine Neveu
IPC分类号： C01B33/12 , C01B33/193
CPC分类号： C01B33/128 , C01B33/193
摘要： A process for preparing precipitated silicas in which: (i) an aqueous stock with a pH of between 2 and 5 is formed; (ii) silicate and acid are simultaneously added to said stock, such that the pH of the resulting reaction medium is maintained between 2 and 5; (iii) silicate is added until a pH value of between 7 and 10 is obtained; (iv) silicate and acid are simultaneously added, such that the pH of the reaction medium is between 7 and 10; (v) acid is added until a pH value of between 2.5 and 5.3 is obtained; and (vi) the reaction medium is placed in contact with acid and silicate, such that the pH is between 2.5 and 5.3; wherein the acid used in at least one of the process steps is a concentrated acid.

8. 发明申请

US20150266743A1 Process for preparing precipitated silica 有权
标题翻译：沉淀二氧化硅的制备方法
公开(公告)号：US20150266743A1
公开(公告)日：2015-09-24
申请号：US14373799
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain , Sylvaine Neveu
IPC分类号： C01B33/12
CPC分类号： C01B33/128 , C01B33/193
摘要： A process for preparing precipitated silica in which: (i) an aqueous stock having a concentration of alkali metal silicate less than 20 g/L is formed; (ii) acid is added to said initial stock, until at least 50% of the amount of M2O is neutralized; (iii) silicate and acid are simultaneously added, such that the degree of consolidation is greater than 4 and at most 100; (iv) silicate and acid are simultaneously added, such that the pH of the reaction medium is between 7 and 10; (v) acid is added until a pH value of between 2.5 and 5.3 is obtained; and (vi) the reaction medium is placed in contact with acid and silicate, such that the pH is between 2.5 and 5.3, wherein the acid used in at least one of the process steps is a concentrated acid.
摘要翻译：一种制备沉淀二氧化硅的方法，其中：（i）形成具有碱金属硅酸盐浓度低于20g / L的水性原料; （ii）将酸加入到所述初始原料中，直到M 2 O的至少50％被中和; （iii）同时加入硅酸盐和酸，使得固结度大于4并且至多为100; （iv）同时加入硅酸盐和酸，使得反应介质的pH为7至10; （v）加入酸直至获得2.5至5.3的pH值; 和（vi）将反应介质与酸和硅酸盐接触，使得pH在2.5和5.3之间，其中在至少一个工艺步骤中使用的酸是浓酸。

9. 发明申请

US20150030518A1 Process for preparing precipitated silica having specific morphology, particle size and porosity 有权
标题翻译：制备具有特定形态，粒度和孔隙率的沉淀二氧化硅的方法
公开(公告)号：US20150030518A1
公开(公告)日：2015-01-29
申请号：US14373791
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain , Sylvaine Neveu
IPC分类号： C01B33/12
CPC分类号： C01B33/128 , C01B33/193
摘要： The invention relates to a process for the preparation of precipitated silica formed of aggregates of large primary silica particles, at the surface of which occur small primary silica particles, in which the acid used in at least one of the process steps is a concentrated acid.
摘要翻译：本发明涉及一种制备沉淀二氧化硅的方法，所述沉淀二氧化硅由大的一次二氧化硅颗粒的聚集体形成，其表面出现小的一次二氧化硅颗粒，其中至少一个工艺步骤中使用的酸是浓酸。

10. 发明申请

US20150030519A1 Process for preparing precipitated silica 有权
标题翻译：沉淀二氧化硅的制备方法
公开(公告)号：US20150030519A1
公开(公告)日：2015-01-29
申请号：US14373801
申请日：2013-01-23
申请人： RHODIA OPERATIONS
发明人： Emmanuelle Allain
IPC分类号： C01B33/12
CPC分类号： C01B33/128 , C01B33/193
摘要： A process for preparing precipitated silica in which: (i) an stock having a concentration of alkali metal M silicate less than 20 g/L is formed; (ii) acid is added to said initial stock, until at least 50% of the amount of M2O is neutralized; (iii) silicate and acid are simultaneously added, such that the degree of consolidation is greater than 4 and at most 100; and (v) acid is added until a pH value of between 2.5 and 5.3 is obtained, wherein the acid used in at least one of the process steps is a concentrated acid.
摘要翻译：一种制备沉淀二氧化硅的方法，其中：（i）形成具有碱金属M硅酸盐浓度小于20g / L的原料; （ii）将酸加入到所述初始原料中，直到M 2 O的至少50％被中和; （iii）同时加入硅酸盐和酸，使得固结度大于4并且至多为100; 并且（v）加入酸直至获得2.5至5.3之间的pH值，其中在至少一个工艺步骤中使用的酸是浓缩酸。

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