发明名称 |
PROCESS FOR PRODUCING ULTRAPHOSPHORIC ACID CRYSTAL |
摘要 |
PURPOSE:To provide the subject process comprising imparting a temperature gradient to a supersaturated solution of polyphosphoric acid flux relative to ultraphosphate to cause a mass flow, whereby a sheet crystal and an aculeate crystal having a long axis in the temperature gradient direction, having a comparatively large area and a high quality can be produced with good reappearance. |
申请公布号 |
JPS53141199(A) |
申请公布日期 |
1978.12.08 |
申请号 |
JP19770055334 |
申请日期 |
1977.05.16 |
申请人 |
HITACHI LTD |
发明人 |
KASANO HIROYUKI;FURUHATA YOSHIO |
分类号 |
C30B11/00;C01B25/38;C30B29/14;C30B29/62 |
主分类号 |
C30B11/00 |
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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