| 发明名称 |
METHOD FOR REDUCING EQUIPMENT FOULING IN (METH)ACRYLIC ACID PRODUCTION PROCESS |
| 摘要 |
<p>The present invention provides a method for reducing fouling of equipment during separation and purification steps of (meth)acrylic acid production by early removal of aldehyde impurities by adding a hydrazide compound well upstream of the separation and purification steps. In particular, carbodhydrazide may be added as an aldehyde scavenging agent to aqueous (meth)acrylic acid prior to dehydration and purification steps.</p> |
| 申请公布号 |
SG191822(A1) |
申请公布日期 |
2013.08.30 |
| 申请号 |
SG20130051271 |
申请日期 |
2011.11.30 |
| 申请人 |
ROHM AND HAAS COMPANY |
发明人 |
CHARENDOFF, MARC;JULIETTE, JAMIE, JERRICK;MENDOZA, JOY;SHAH, RAJESH |
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