发明名称 |
CONDENSATION OF PARTIALLY CONDENSED UREA SOLUTION |
摘要 |
<p>Process for concentrating a partly concentrated urea solution to form a practically anhydrous melt, which urea solution is obtained by evaporation under vacuum or by melting moist urea crystals and which urea solution contains at least 98 percent by weight of urea, by allowing the solution to expand to a pressure between 0.013 and 0.067 bar and removing the water vapour released thereby.</p> |
申请公布号 |
JPS60185756(A) |
申请公布日期 |
1985.09.21 |
申请号 |
JP19840257728 |
申请日期 |
1984.12.07 |
申请人 |
YUNI BAN KUNSUTOMESUTOFUABURIIKEN BV |
发明人 |
KORUNERISU BUAAUEERU |
分类号 |
C07C273/04;C07C67/00;C07C239/00;C07C273/16 |
主分类号 |
C07C273/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|