公开(公告)号：US4098714A

公开(公告)日：1978-07-04

申请号：US697616

申请日：1976-06-18

申请人： Helmut Derleth ,  Maria Hansen ,  Ingeborg Lange ,  Artur Kurs

发明人： Helmut Derleth ,  Maria Hansen ,  Ingeborg Lange ,  Artur Kurs

IPC分类号： B01J20/32 ,  C01B33/46 ,  C02F5/08 ,  C11D3/00 ,  C11D3/02 ,  C02B5/02 ,  C02B1/22

CPC分类号： C11D3/046 ,  B01J20/041 ,  B01J20/08 ,  B01J20/16 ,  B01J20/28004 ,  B01J20/3204 ,  B01J20/321 ,  B01J20/3212 ,  B01J20/3236 ,  C01B33/46 ,  C02F5/083 ,  C11D3/1213 ,  C11D3/124 ,  C11D3/126 ,  C11D3/128 ,  B01J2220/4825

摘要： Disclosed is a process for preparing a water softening composition which comprises the steps of:(a) applying to finely divided solid carrier particles of an inorganic material selected, e.g., from the group consisting of aluminosilicates having an Al.sub.2 O.sub.3 content of from 1 to 75% by mole, kieselguhr, a silicic acid composition containing 67 mole % of SiO.sub.2, 1 mole % of Al.sub.2 O.sub.3 and 278 mole % of H.sub.2 O, a silica gel containing 12.24% of SiO.sub.2, 7.35% of N.sub.2 SO.sub.4, 0.41% of Na.sub.2 O and 80% of H.sub.2 O, aluminum oxide, alumina hydrate, bentonite and sodium sulfate, a solution of sodium aluminate having a concentration of from about 0.2% to 25% by weight and a molar ratio Na.sub.2 O/Al.sub.2 O.sub.3 of from about 0.3 to 47, in an amount which is sufficient to coat the particles with an outside layer of sodium aluminate amounting from about 0.5 to about 50% by weight of the particles; and, (b) drying the coated particles at a temperature of from about 20.degree. to 120.degree. C. to a residual moisture content of from about 5% to 30% by weight. Also disclosed are the resulting water softening compositions and method of using same.

摘要翻译： 公开了一种制备水软化组合物的方法，其包括以下步骤：

公开(公告)号：US4248847A

公开(公告)日：1981-02-03

申请号：US876050

申请日：1978-02-08

申请人： Helmut Derleth ,  Ludwig Walter ,  Karl-Heinrich Bretz ,  Artur Kurs

发明人： Helmut Derleth ,  Ludwig Walter ,  Karl-Heinrich Bretz ,  Artur Kurs

IPC分类号： C11D3/12 ,  C01B20060101 ,  C01B25/28 ,  C01B39/02 ,  C01B39/16 ,  F16G13/00 ,  C01B33/28

CPC分类号： C01B33/2823 ,  Y10S423/24

摘要： A process for preparing a synthetic substantially crystalline sodium aluminosilicate of the zeolite A type is disclosed. The process comprises rapidly and simultaneously introducing a sodium silicate and a sodium aluminate solution under thorough agitation at a constant by volume ratio which provides for a reaction mixture the content of which is equivalent to a molar ratio of x' Na.sub.2 O/ 1 Al.sub.2 O.sub.3 / y SiO.sub.2 /z' H.sub.2 O wherein x' is from about 6.5 to about 9.0, y is from about 1.7 to about 2.2 and z' is from about 180 to about 250, maintaining the reaction mixture at a temperature of from about 70.degree. to about 100.degree. C. under stirring for a sufficient period of time, usually 1-3 hours, in order to allow the initially amorphous reaction product to crystallize and recovering the substantially crystalline product from the resulting suspension. The essential feature of the process is a continuously maintained constant molar ratio Na.sub.2 O/ Al.sub.2 O/ SiO.sub.2 /H.sub.2 O throughout the reaction mixture during the entire course of the process. The resulting product exhibits a small particle size, an excellent wettability and a high calcium binding power, and is especially suited as a detergent additive.

摘要翻译： 公开了一种制备沸石A型合成基本上结晶的硅铝酸钠的方法。 该方法包括快速并同时在体积比不变的充分搅拌下引入硅酸钠和铝酸钠溶液，其提供反应混合物，其含量相当于x'Na 2 O / 1 Al 2 O 3 / y SiO 2的摩尔比 / z'H 2 O，其中x'为约6.5至约9.0，y为约1.7至约2.2，z'为约180至约250，将反应混合物保持在约70℃至约100℃的温度 在搅拌下足够的时间，通常为1-3小时，以使最初的无定形反应产物从所得悬浮液中结晶并回收基本上结晶的产物。 该方法的基本特征是在整个过程中在整个反应混合物中持续恒定的摩尔比Na 2 O / Al 2 O / SiO 2 / H 2 O。 所得产品具有小的粒度，优异的润湿性和高的钙结合力，并且特别适合作为洗涤剂添加剂。