Processes for the preparation of acid (MET) acrylic paint and polu00ecmero at least partially based on acid (MET) acrylic paint, devices for the preparation of such acid (MET) acrylic paint and polu00ecmero, fibers, films, foams and composites based on these at least partially u00e1ci The acrylic paint and polu00ecmero (MET), and use of such acid (MET) acrylic paint and polu00ecmero in producing fibers, films,Foams and composites

摘要

Processes for the preparation of acid (MET) acrylic paint and polu00ecmero at least partially based on acid (MET) acrylic paint, devices for the preparation of such acid (MET) acrylic paint and polu00ecmero, fibers, films, foams and composites based on these at least partially u00e1ci The acrylic paint and polu00ecmero (MET), and use of such acid (MET) acrylic paint and polu00ecmero in producing fibers, films,Foams and composites the present invention refers to a process for the preparation of acrylic acid (MET), in which: (a) a gaseous product containing acrylic acid (MET) and obtained a oxidation in gas phase, is placed in contact Cora joined the aqueous phase in a unit of time (3), PA To produce a hardened phase aqueous phase; (b) the temperate is subjected to distillation.In a distillation unit (5), to produce a product of the fund and a product of the top; and () at least the bottom product is subjected to a crystallization in a unit of crystallization, to produce pure acrylic acid (MET), in which an organic release agent is added after the A tempering unit (3) and, preferably, at the latest on the unit of crystallization.The invention also relates to a device for the preparation of acrylic acid (MET), a process for the preparation of a polymer of an acrylic acid (MET), obtainable by the process mentioned above, a device for the preparation of the polymer, a polymer obtainable by this The process and the use of acrylic acid (MET) or the polymer in chemical products such as fibers or molded articles.