METHOD FOR MANUFACTURE OF FREE-FLOWING FORM OF POWDERED CHOLINE CHLORIDE PRODUCED FROM ITS WATER SOLUTION Russian patent published in 2013 - IPC A23L1/302 A23K1/16 C07C215/40 

FIELD: food industry.

SUBSTANCE: invention relates to methods for manufacture of a free-flowing form of powdered choline chloride produced from a water solution having a biological action. The method envisages mixing 70% water solution of choline chloride with an active adsorbent. The adsorbent is represented by dry apple refuses produced as a result of two-stage drying process implementation in the two-sectional dryer. At the first stage apple refuses with moisture content equal to 65…70% are subjected to drying in a pulse vibrofluidised layer with atmospheric pressure superheated steam with a temperature equal to 130…135°C at a rate of 1.5…2 m/sec till moisture content is equal to 45…50%. The product layer is brought into a vibrofluidised state for 3 sec every 60 sec with an air distributor plate having oscillation amplitude and frequency equal to 5…7 mm and 10…12.5 Hz respectively. At the second stage apple refuses are dried in a pseudofluidised layer with superheated steam with decreased pressure equal to 0.02…0.04 MPa and temperature equal to 80…100°C at a rate of 1.0…1.5 m/sec till the final moisture content is equal to 8…10%. The exhaust superheated steam from the first dryer section, with a temperature equal to 105…110°C, is divided into two flows. One flow is supplied into an atmospheric pressure steam superheater for superheating up to a temperature equal to 130…135°C with heating steam by way of recuperative heat exchange and then is returned into the first section with a recirculation loop formation. The other steam flow in the amount generated in the product drying process at the first stage is supplied into a decreased pressure steam superheater where steam condensation takes place while condensation heat is used for superheating decreased pressure steam up to a temperature equal to 80…100°C due to recuperative heat exchange. The exhaust superheated steam from the second section of the dryer (having a decreased pressure and temperature equal to 65…80°C) is divided into two flows; one of them is supplied by a blower into the decreased pressure steam superheater for superheating up to 80…100°C and then is returned into the second section with a recirculation loop formation. The other seam flow in an amount generated in the apple refuses drying process at the second stage is supplied through the separating wall of the condenser into the condenser where steam condensation and atmospheric air preliminary heating up to a temperature equal to 45…50°C take place. The produced heating steam condensate with a temperature equal to 125…130°C from the atmospheric pressure steam superheater and exhaust atmospheric pressure superheated steam condensate with a temperature equal to 100…105°C from the decreased pressure steam superheater are supplied through the separating wall of the calorifier into the calorifier for final heating of atmospheric air up to a temperature equal to 65…70°C. Produced dry apple refuses are milled into particles sized 1 mm, fractionated; the sieve overtail is supplied for additional milling while the sieve undersize is mixed with choline chloride water solution preliminarily heated up to 35…40°C at a ratio of 2:3. Then the produced mixture with moisture content equal to 47…50% is supplied into the drier where the mixture is dried in the fluidised layer, till the final moisture content is equal to 10%, with atmospheric air heated up to 65…70°C at airflow rate in the drier operation chamber equal to 0.8…1.0 m/sec. The exhaust atmospheric air with a temperature equal to 40…45°C is supplied at first from the drier for purification into the purifier cyclone and then - into the heater for heating the initial choline chloride solution before supplying it into the mixer. Then the finely dispersed choline chloride fraction produced after purification is combined with a flow of the ready powdered choline chloride released from the dryer and is supplied for cooling.

EFFECT: invention allows to produce powdered choline chloride with high quality and high nutritional value and ensure vitamin B4 preservation in the ready product and enhance energy efficiency of the ready product production method.

1 dwg