专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5965105A Process for the synthesis of flyash based Zeolite-A 失效
标题翻译：用于合成基于飞灰的沸石-A的方法
公开(公告)号：US5965105A
公开(公告)日：1999-10-12
申请号：US96821
申请日：1998-06-12
申请人： Sadhana Rayalu , Nitin Kumar Labhasetwar , Purushottam Khanna
发明人： Sadhana Rayalu , Nitin Kumar Labhasetwar , Purushottam Khanna
IPC分类号： C01B39/14
CPC分类号： C01B39/14 , Y10S423/24
摘要： The present invention relates to a process for synthesis of flyash based Zeolite-A, said process comprising grinding and mixing of flyash and caustic soda in a ratio of 1:1.2 and optionally adding sodium aluminate or aluminium hydroxide to obtain a fine homogeneous fusion mixture; heating the said mixture in an inert vessel at about 500-600.degree. C. for about 1-2 hrs. to obtain a fused mass; cooling, milling, and mixing the said fused mass in distilled water for about 8-10 hrs. with simultaneous optional additon of sodium aluminate or alum solution, in the present or absence of NaC1 followed by optional addition of zeolite-A seeding to obtain amorphous alumino -silicate slurry; subjecting the said slurry to hydrothermal crystallisation at about 90-110.degree. C. for 2 to 4 hrs. to obtain Zeolite-A crystals; and washing the said crystals with water and then subjecting the washed crystals to oven drying at about 50-60.degree. C. to obtain the FAZ-A crystals.
摘要翻译：本发明涉及一种合成基于飞灰的沸石-A的方法，所述方法包括以1：1.2的比例研磨和混合飞灰和苛性钠，并任选地加入铝酸钠或氢氧化铝以获得细均匀的熔融混合物; 在约500-600℃下在惰性容器中加热所述混合物约1-2小时。得到熔融体; 冷却，研磨和将所述熔融物质在蒸馏水中混合约8-10小时。在本发明或不存在NaCl的情况下同时选择性地添加铝酸钠或明矾溶液，然后任选加入沸石-A接种以获得无定形硅铝酸盐浆料; 将所述浆料在约90-110℃下进行水热结晶2至4小时。得到沸石A晶体; 并用水洗涤所述晶体，然后将洗涤的晶体在约50-60℃下烘箱干燥，得到FAZ-A晶体。

2. 发明授权

US6027708A Process for the synthesis of flyash based zeolite-Y 有权
标题翻译：用于合成基于粉末的沸石-Y的方法
公开(公告)号：US6027708A
公开(公告)日：2000-02-22
申请号：US149374
申请日：1998-09-08
申请人： Sadhana Rayalu , Nitin Kumar Labhasetwar , Purushottam Khanna
发明人： Sadhana Rayalu , Nitin Kumar Labhasetwar , Purushottam Khanna
IPC分类号： C01B39/20 , C01B39/24
CPC分类号： C01B39/20 , Y10S423/21
摘要： The present invention relates to a process for the synthesis of flyash based zeolite-Y (FAZ-Y), comprising grainding and mixing of flyash with caustic soda in a ratio ranging between 1:0.4-1:1.2 to obtain a fine homogenous fusion mixture, heating the said fusion mixture in an invert vessel at about 500-600.degree. C. for about 1-2 hours to obtain a fused mass, cooling, milling, and mixing of the said fused mass in distilled water for about 8-12 hours, subjecting the said slurry to hydrothermal crystallization at about 90-110.degree. C. for 8 to 12 hours to obtain FAZ-Y crystals, washing the said crystals with water and then subjecting the washed crystals to oven drying at 50-60.degree. C. to obtain the desired FAZ-Y crystals.
摘要翻译：本发明涉及一种合成基于飞灰的沸石-Y（FAZ-Y）的方法，其包括粉煤灰与苛性钠的比例为1：0.4-1：1.2的混合物，以获得精细均匀的熔融混合物在大约500-600℃下在反转容器中加热所述熔融混合物约1-2小时，以获得所述熔融物质在蒸馏水中的熔融物质，冷却，研磨和混合约8-12小时将所述浆料在约90-110℃下进行水热结晶8至12小时，得到FAZ-Y晶体，用水洗涤所述晶体，然后将洗涤的晶体在50-60℃烘箱干燥。以获得所需的FAZ-Y晶体。

3. 发明申请

US20090305883A1 DEFLUORIDATION OF WATER 审中-公开
标题翻译：水的脱水
公开(公告)号：US20090305883A1
公开(公告)日：2009-12-10
申请号：US12481433
申请日：2009-06-09
申请人： Sadhana Rayalu , Nitin Labhsetwar , Sanjay Kamble , Rajat S. Ghosh
发明人： Sadhana Rayalu , Nitin Labhsetwar , Sanjay Kamble , Rajat S. Ghosh
IPC分类号： B01J20/04 , B01J20/30 , B01J20/08
CPC分类号： C02F1/288 , B01J20/02 , B01J20/0266 , B01J20/041 , B01J20/06 , B01J20/08 , B01J20/28059 , B01J2220/42 , B01J2220/4881 , C02F1/281 , C02F1/283 , C02F1/286 , C02F2101/14 , C02F2209/06
摘要： Bio-ceramic compositions for removing fluoride from water, and methods for making the same are disclosed. The bio-ceramic composition may comprise alumina, calcium oxide, sulfur, and/or carbon. The bio-ceramic composition may be produced from at least one natural media, such as chitin or eggshell membrane. The bio-ceramic composition may realize an initial fluoride adsorption capacity, in water, of at least about 5 mg/g.
摘要翻译：公开了从水中除去氟化物的生物陶瓷组合物及其制备方法。生物陶瓷组合物可以包含氧化铝，氧化钙，硫和/或碳。生物陶瓷组合物可以由至少一种天然培养基（例如甲壳质或蛋壳）制备。生物陶瓷组合物可以在水中实现至少约5mg / g的初始氟吸收能力。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式