Control of a process for the purification of (meth

专利名称：Control of a process for the purification of

(meth)acrylic acid using on-line, near IRanalysis

发明人：Timothy D. Ligon,Olan S.

Fruchey,Christopher T. Reeves,FungauHo,Roger L. Roundy,William G.

Etzkorn,Mahmood N. A. Jawaid,Patrick M.Wiegand

申请号：US13121046申请日：20090918公开号：US09745244B2公开日：20170829

摘要：An improved process for the manufacture of technical grade (meth)acrylic acid,e.g., acrylic acid, the process comprising producing a hydrated reaction product from thegas-phase oxidation of at least one (meth)acrylic acid precursor, e.g., propylene, followedby first dehydrating and then concentrating the reaction product, the improvementcomprising controlling at least one of the water, acetic acid and (meth)acrylic acidcontent of the reaction product during the purification of the reaction product using on-line, near IR spectroscopy.

申请人：Timothy D. Ligon,Olan S. Fruchey,Christopher T. Reeves,Fungau Ho,Roger L.Roundy,William G. Etzkorn,Mahmood N. A. Jawaid,Patrick M. Wiegand

地址：Saint Albans WV US,Hurricane WV US,Durham NC US,Charleston WVUS,Rosharon TX US,Hurricane WV US,Cross Lanes WV US,South Charleston WV US

国籍：US,US,US,US,US,US,US,US

代理人：Lynn B. Morreale

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