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 Acid (MET) acrylic paint and polu00ecmero, and use of such acid (MET) acrylic paint and polu00ecmero in producing fibers, films,Foams and composites

摘要

Processes for the prepadau00e7u00e3o 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 relates to a process for the preparation of an acrylic acid (MET), then: (a) a product gas containing acrylic acid (MET) and obtained from oxidation in gas phase.In the product gas is brought into contact with an aqueous phase in a partition unit to generate an aqueous phase departure; (b) the phase match is placed into contact with an organic agent of separation in an extraction unit to generate a first phase and at least one phase; (c) P. At least one phase chosen from the first phase and at least one preferably the first phase.Is subjected to crystallization, crystallization of the suspension preferably in a unit of a phase, a crystallization to produce a pure acrylic acid (MET).The invention also relates to a device for the preparation of acrylic acid (MET), a process for the preparation of the polymer from an acrylic acid (MET) obtained by the above process, a device for the preparation of this polymer, a polymer obtained by this process and the U. So the acid (MET) acrylic or the polymer chemicals, such as fibers, and articles so formed.