TH23119A - Solution formation - Google Patents

Abstract

One method is described for the formation of a solution of cellulose in third amine oxide (eg, N-methyl morphaline, N-oxide) and non-cellulose solvent (e.g. water The methodology involves the preparation of mixtures containing non-solvent excess substances, and the removal of excess by To heat the mixture to a temperature above the boiling point of the non-solvent at almost the pre-set atmospheric pressure, the hot mixture is fed. Into the input set of the mixing chamber at almost the same pressure as the pre-set atmospheric pressure, to cause The sudden vaporization of some excess non-solvent substance is then stirred in the mixing chamber with the rotor and moving. Move through the mixing room while becoming The non-solvent vapors continued to form, the cellulose solution formed by this method was pulled from the mixing chamber, and the non-vaporized non-solvent was recovered. In a joint rotation method From one end Together of the mixing room Machine for making Methodology for success and achievement has been described. As well

Claims (1)

1. Methods for converting cellulose mixtures, amine third oxide and non-solvent additives, such as water, into cellulose solutions. In the third amine oxide Which contains a reduced amount of non-solvent substance, which consists of various steps of heating the mixture until To a temperature which is higher than the boiling point Of non-solvent substances At almost the same pressure as atmospheric pressure As predetermined, the continuous infeed of this humidifying mixture into the import zone of Mixing chamber at almost pressure tags: