发明名称 |
Aluminum silicate complex and high-performance adsorbent comprising the same |
摘要 |
Provided is an adsorbent having superior adsorption properties for use as a dehumidifying agent for desiccant air conditioning which exhibits high adsorption properties at mid and high humidity ranges, and for use as a gas adsorbent of carbon dioxide, ammonia, formaldehyde and the like. A precursor suspension having a Si/Al ratio of 0.70 to 1.0 is prepared, and the precursor suspension is subsequently heated at 110° C. or higher for 2 days to synthesize a complex of a layered low-crystalline clay mineral and an amorphous aluminum silicate. The obtained complex of the layered low-crystalline clay mineral and the amorphous aluminum silicate yields excellent water vapor adsorption performance of 45 wt % or more at a relative humidity of 60%, and therefore can be used as an adsorbent for desiccant air conditioning. The complex also yields excellent carbon dioxide absorption/desorption performance of 12 wt % or more at 100 kPa to 900 kPa, and therefore can be used as a gas adsorbent for gas such as ammonia and formaldehyde. |
申请公布号 |
US8865020(B2) |
申请公布日期 |
2014.10.21 |
申请号 |
US200812810533 |
申请日期 |
2008.12.26 |
申请人 |
National Institute of Advanced Industrial Science and Technology |
发明人 |
Suzuki Masaya;Tsukimura Katsuhiro;Kawabata Sumiko;Ikeda Chieko;Nakanishi Ryousuke;Tajiri Koji;Inukai Keiichi;Maeda Masaki |
分类号 |
C09K3/00;B01J20/16;B01D53/02;C01B33/26;C01B33/40;B01D53/28;B01J29/06;B01D53/047 |
主分类号 |
C09K3/00 |
代理机构 |
Howson & Howson LLP |
代理人 |
Howson & Howson LLP |
主权项 |
1. A complex comprising a layered low-crystallinity clay mineral and an amorphous aluminum silicate, wherein the complex having four broad peaks centered at about 2θ=20, 26, 35, 39° in a powder X-ray diffraction pattern obtained by using CuKα as an X-ray source. |
地址 |
Tokyo JP |