公开(公告)号：US4381255A

公开(公告)日：1983-04-26

申请号：US225075

申请日：1981-01-14

申请人： Richard J. Nozemack ,  Chang W. Chi ,  John J. Schwonke

发明人： Richard J. Nozemack ,  Chang W. Chi ,  John J. Schwonke

IPC分类号： B01J20/18 ,  B01J20060101 ,  B01J21/16 ,  B01J29/06 ,  B01J37/00 ,  C01B39/00 ,  C01B39/02 ,  C01B39/18

CPC分类号： C01B33/283

摘要： Binderless zeolite sieve extrudates are made by extruding a mixture containing about 40-60% zeolites with the remainder being a metakaolin clay that has mixed with it about 90-120% of the stoichiometric amount of sodium hydroxide to convert the clay to a zeolite. After extrusion the particles are allowed to dry age during which time most of the clay is converted to the zeolite. A further heat treatment in a dilute caustic aqueous solution insures complete crystallization with subsequent washing and calcination to produce an adsorbent product.

摘要翻译： 无粘结的沸石筛挤出物是通过挤出含约40-60％沸石的混合物制成的，剩余部分是偏高岭土，其与其混合约90-120％的化学计量的氢氧化钠以将粘土转化成沸石。 挤出后，允许颗粒干燥年龄，在此期间大部分粘土转化为沸石。 在稀苛性水溶液中进一步的热处理确保完全结晶，随后进行洗涤和煅烧以产生吸附剂产品。