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发明名称
PROCEDE DE PURIFICATION DE DIHYDROXYBIPHENYLES
摘要
<p><P>La présente invention concerne un procédé de purification du dihydroxy-4,4' biphényle par acylation du milieu de préparation et précipitation sélective du diacétylbiphényle.</P></p>
申请公布号
FR2633612(A1)
申请公布日期
1990.01.05
申请号
FR19880008725
申请日期
1988.06.29
申请人
RHONE POULENC CHIMIE
发明人
ALAIN NONN
分类号
C07C67/52;C07C37/86;C07C39/15;C07C69/16
主分类号
C07C67/52
代理机构
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