Process for purification of a monomu00earo by extraction with a training officer of the phases and crystallization, the use of monu00c8meros obtained and device su00ecntese

摘要

Process for purification of a monu00c8mero by extraction with a training officer of the phases and crystallization, the use of monu00c8meros obtained and device su00ecntese ".The invention relates to a process for purification of an acid monomer having a double bond, comprising the steps of: (a) providing a mixture of departure.Containing as components of the mixture of departure, respectively, based on the mixture of departure: (A1) at least 5% by weight of monomer acid; and (A2) at least 0,01% by weight of water, or (A3) at least 0.01% by weight of at least one component of the mixture of departure; or (A2) and (A3).In which the sum of fractions in% by weight of the components of the mixture of departure is respectively 100% by weight; (b) adding an agent forming phases, or a salt of the training officer of phases.Or a mixture of both, to obtain a mixture of purification.Of which: (c) at least one first phase and at least one another phase different from the first stage with a limit of phases form a system of phases; (d) to reduce the temperature of the system of stages.Where: (E) in one of the phases of the system phases, a crystal product containing at least 50% by weight of the components of the mixture of departure is formed, and another component of the mixture of departure.As a crystalline system; and (f) isolation of the crystal product, as well as a device for synthesis of a monomer acid having a double bond.A process for producing an acid monomer having a double bond, a monomer having a double bond and acid obtainable by this process, fibers, films, foams, bodies formed.Superabsorbent polymers and other polymers to the base or acid containing the monomer, the use of acid monomer in or for the production of fibers, films, foams, bodies formed.Superabsorbent polymers or other specialty polymers.