发明名称 METHOD FOR PRODUCTION OF A LIQUID COMPOSITION OF AN ORTHO-DIHYDROXYBENZYL COMPOUND OF HIGH PURITY AND SAID COMPOSITION
摘要 <p>The invention relates to a method for production of a liquid composition of an ortho-dihydroxybenzyl compound of high purity and said composition. More particularly The invention relates to the production of a liquid composition of pyrocatechol of high purity. Said method comprises mixing an ortho-dihydroxybenzyl compound with an organic solvent and applying the specific features pertaining to the nature of the materials used in the installation.</p>
申请公布号 WO2003068713(P1) 申请公布日期 2003.08.21
申请号 FR2003000497 申请日期 2003.02.17
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