发明名称 |
AGGLOMERATES OF PRECIPITATED SILICA, METHOD FOR THEIR PREPARATION AND THEIR USE AS FILTER MEDIUM IN GAS FILTRATION |
摘要 |
The present invention relates to a method of producing a material comprising agglomerated particles of precipitated silica, comprising preparing a solution of at least two metal salts (Me), wherein the metal ions are divalent or polyvalent. A solution of alkali metal (M) silicate having a molar ratio SiO<SUB>2</SUB>/M<SUB>2</SUB>O of 1 - 4 is prepared. Said solutions are mixed and the mixture stirred, allowing a coagulum to immediately form. The coagulum is rinsed, collected, dewatered, impregnated and processed to provide a material having a dry matter content of >75%, preferably >97%. A material obtainable by the process is also provided. |
申请公布号 |
WO2006071183(A1) |
申请公布日期 |
2006.07.06 |
申请号 |
WO2005SE02036 |
申请日期 |
2005.12.23 |
申请人 |
SVENSKA AEROGEL AB;NORBERG, SVEN-PETER;LINDAHL, LARS GOESTA;ABRAHAMSSON, JOERGEN |
发明人 |
NORBERG, SVEN-PETER;LINDAHL, LARS GOESTA;ABRAHAMSSON, JOERGEN |
分类号 |
B01J20/30;B01D53/46;B01D53/50;B01D53/56;B01D53/58;B01D53/62;B01D53/68;B01D53/72;B01D53/81;B01J;B01J20/10;B01J20/32 |
主分类号 |
B01J20/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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