公开(公告)号：US4499062A

公开(公告)日：1985-02-12

申请号：US499037

申请日：1983-05-27

申请人： Peter Christophliemk ,  Rudolf Novotny ,  Jurgen von Laufenberg ,  Josef Sadlowsky

发明人： Peter Christophliemk ,  Rudolf Novotny ,  Jurgen von Laufenberg ,  Josef Sadlowsky

IPC分类号： B01J8/10 ,  B01J8/20 ,  C01B33/26 ,  C01B39/02 ,  C01B33/32

CPC分类号： C01B33/26 ,  B01J8/10 ,  B01J8/20 ,  B01J2219/182

摘要： A process for the hydrothermal fusion of aluminum silicate and alkali aluminum silicates with aqueous sodium hydroxide solution under pressure and at elevated temperatures in the presence of soluble silicates, in which an aqueous solution containing from about 20 to about 50% by weight of NaOH is mixed with aluminum silicates and/or alkali aluminum silicates, and with a hydrothermally fusible silicate component, wherein the ratio by weight of SiO.sub.2 to Al.sub.2 O.sub.3 in the mixture amounts to at least 30:1 and the ratio by weight of SiO.sub.2 to Na.sub.2 O amounts to at least 1.5:1, and the mixtures are reacted at temperatures of from about 180.degree. to about 250.degree. C. and under the saturated steam pressures corresponding to those temperatures. The resulting sodium silicate solution, which contains the dissolved aluminum, is then separated off.

摘要翻译： 在可溶性硅酸盐的存在下，在压力和升高的温度下，将硅酸铝和碱金属铝硅酸盐与氢氧化钠水溶液水热熔融的方法，其中将含有约20至约50重量％的NaOH的水溶液混合 与硅酸铝和/或碱金属硅酸铝，以及水热熔融硅酸盐组分，其中混合物中SiO 2与Al 2 O 3的重量比至少为30:1，SiO 2与Na 2 O的重量比至少为 1.5:1，混合物在约180℃至约250℃的温度下反应，并在相应于这些温度的饱和蒸气压下进行。 然后将所得的含有溶解的铝的硅酸钠溶液分离出来。