发明名称 |
Sintered body of calcium carbonate and process for producing same |
摘要 |
The invention relates to a process for producing a sintered body of calcium carbonate without permitting thermal decomposition of calcium carbonate during sintering, and to the sintered body. A powder material primarily comprising calcium carbonate is subjected to a cold powder pressing process to prepare a green compact, which is then heated in a high-pressure gas atmosphere consisting essentially of an inert gas at a temperature t DEG C. of 900</=t<1200 and at a high gas pressure P kgf/cm2 of <IMAGE>
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申请公布号 |
US5187125(A) |
申请公布日期 |
1993.02.16 |
申请号 |
US19910766263 |
申请日期 |
1991.09.27 |
申请人 |
MARINE BIO CO. LTD.;KABUSHIKI KAISHA KOBESEIKOSHO |
发明人 |
SOMEYA, NOBUO;KITAZATO, TADAO;FUJIKAWA, TAKAO;MANABE, YASUO |
分类号 |
C04B35/622;C04B35/00;C04B35/03;C04B35/645;C04B38/00 |
主分类号 |
C04B35/622 |
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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