公开(公告)号：US08932712B2

公开(公告)日：2015-01-13

申请号：US13702545

申请日：2011-06-01

申请人： Mohan Prabhu Kuvettu ,  Manish Agarwal ,  Arumugam Velayutham Karthikeyani ,  Balaiah Swamy ,  Biswanath Sarkar ,  Mitra Bhanu Patel ,  Santanam Rajagopal

发明人： Mohan Prabhu Kuvettu ,  Manish Agarwal ,  Arumugam Velayutham Karthikeyani ,  Balaiah Swamy ,  Biswanath Sarkar ,  Mitra Bhanu Patel ,  Santanam Rajagopal

IPC分类号： B32B5/16

CPC分类号： C09K15/02 ,  B01J23/10 ,  B01J29/061 ,  B01J29/088 ,  B01J29/185 ,  B01J29/405 ,  B01J29/7057 ,  B01J35/0006 ,  B01J35/0026 ,  B01J35/023 ,  B01J37/0045 ,  B01J2229/20 ,  B01J2229/42 ,  B82Y30/00 ,  C10G11/02 ,  C10G11/05 ,  C10G75/02 ,  C10G2300/4075 ,  C10G2300/705 ,  Y10S977/773 ,  Y10T428/2982

摘要： The present invention relates a metal passivator additive comprising: a rare earth component; alumina; clay; colloidal silica; and a zeolite having high silica to alumina ratio. The present invention also relates to a process for preparing a metal passivator additive, said process comprising: preparing a rare earth slurry by mixing rare earth component with water; obtaining an alumina gel by treating alumina slurry with an acid, wherein the alumina slurry is prepared by mixing alumina and water; mixing the alumina gel and the rare earth slurry to obtain a slurry mixture; adding a colloidal silica to the slurry mixture; preparing a clay slurry by mixing clay and a dispersant; combining the clay slurry and the slurry mixture to obtain a rare earth-binder-filler slurry; obtaining an additive precursor slurry by mixing a zeolite having high silica to alumina ratio to the rare earth-binder-filler slurry; spray-drying the additive precursor slurry to obtain a spray-dried product; and calcining the spray-dried product to obtain the metal passivator additive.

摘要翻译： 本发明涉及一种金属钝化剂添加剂，其包括：稀土元素; 氧化铝 粘土; 胶体二氧化硅; 和具有高二氧化硅与氧化铝比的沸石。 本发明还涉及一种制备金属钝化剂添加剂的方法，所述方法包括：通过将稀土组分与水混合来制备稀土浆料; 通过用酸处理氧化铝浆料获得氧化铝凝胶，其中通过混合氧化铝和水制备氧化铝浆料; 混合氧化铝凝胶和稀土浆料以获得浆料混合物; 向浆料混合物中加入胶体二氧化硅; 通过混合粘土和分散剂制备粘土浆料; 将粘土浆料和浆料混合物混合，得到稀土 - 粘合剂 - 填料浆料; 通过将具有高二氧化硅与氧化铝比的沸石与稀土 - 粘合剂 - 填料浆料混合来获得添加剂前体浆料; 喷雾干燥添加剂前体浆料以获得喷雾干燥产物; 并煅烧喷雾干燥的产品以获得金属钝化剂添加剂。