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US 4,294,624 AGranted
Drying co-mingled carbohydrate solution and recycled product by dielectric heating
OwnerPreston L. Veltmaninventor
Life of this patent
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Abstract
A method of forming dried, solid particulate products from carbohydrate solutions, including complex carbohydrate solutions in the presence of recycled dried product using dielectric heating to supply heat of water vaporization.
Claims13
A process for drying a carbohydrate solution to form a stable, solid, substantially anhydrous particulate product therefrom comprising:
- (a) co-mingling said carbohydrate solution with recycled dry product solid to form a particulate admixture dryable in a dielectrically heated drying zone;
- (b) drying said particulate admixture in said dielectrically heated drying zone at a particle temperature below the melting point of said particulate admixture to form said stable, solid, substantially anhydrous product;
- (c) removing said stable, solid, substantially anhydrous product from the drying zone and dividing it into a first portion and a second portion;
- (d) recycling said first portion;
- and
- (e) recovering said second portion.
3 more elements
A process for drying a carbohydrate solution to form a stable, solid, substantially anhydrous particulate product therefrom comprising:
- (a) co-mingling said carbohydrate solution with about 5 to 20 parts of recycled dry product solids per part of solids in said solution in a co-mingling zone to form a particulate admixture dryable in a dielectrically heated drying zone and having a water content of not more than about 4% by weight;
- (b) drying said particulate admixture at a particle temperature below the melting point of said particulate admixture, in a gas stream in said dielectrically heated drying zone to form said stable, solid, substantially anhydrous product;
- (c) discharging said stable, solid, substantially anhydrous product from the drying zone and dividing it into a first portion and a second portion;
- (d) recycling said first portion to the co-mingling zone;
- and
- (e) recovering said second portion.
3 more elements
A process for drying a carbohydrate solution to form a stable, solid, substantially anhydrous particulate product therefrom comprising:
- (a) co-mingling, in a co-mingling zone, said carbohydrate solution with an amount of recycled dry product solids effective for forming a particulate admixture dryable in a dielectrically heated drying zone and having a water content of not more than about 4% by weight;
- (b) drying said particulate admixture in a gas stream in said dielectrically heated drying zone to form said stable, solid, substantially anhydrous product;
- (c) discharging said stable, solid, substantially anhydrous product from the drying zone and dividing it into a first portion and a second portion;
- (d) recycling said first portion to the co-mingling zone;
- and
- (e) recovering said second portion.
3 more elements
Dependencies are inferred from the claim text.