METHOD FOR PRODUCING A TRANSFER MIXTURE BY THE DIRECT DISSOLUTION PROCESS, USING A THIN LAYER EVAPORATOR
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United States of America Patent
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Sep 12, 2024
app pub date -
Jan 12, 2022
filing date -
Jan 13, 2021
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Abstract
A method for producing a transfer mixture by the direct dissolution method in a thin film evaporator (D) having a feed, a housing and a discharge, wherein the feed introduces a product consisting essentially of cellulose, water and a functional liquid into the housing, wherein an evaporator shaft (5) situated in the housing (4) rotationally wipes the product over the heated interior of the housing (4), wherein the product heats up and some of the water evaporates, so that the transfer mixture is obtained, wherein (a) the transfer mixture is discharged before the product substantially overheats; and (b) all heating surfaces of the thin film evaporator in contact with the product are subjected to a heating temperature, which is at least 20K above the temperature of the product.
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