Übersetzung für "Fluid bed drying" in Deutsch

The dispersions may be dried by means, for example, of fluid-bed drying, freeze drying or spray drying.

Wet granulation of pharmaceutical tablet mixtures with subsequent fluid bed drying is a basic step in the production of solid dosage forms.

A feature of our constant development are fluid bed plants for drying and/or cooling in a closed inert gas loop.

Such processes proceed continuously, e.g. by means of simultaneous spraying with granulating solution of the mass to be granulated and drying, e.g. in a drum granulator, in granulating vessels, on dish granulators, in a fluid bed, by spray-drying or spray-solidifying, or proceed discontinuously, as, for example, in a fluidised bed, a batch mixer or a spray-drying drum.

For comparison, the stability of conventional sodium perborate monohydrate (prepared by fluid bed drying of sodium perborate tetrahydrate obtained by crystallization) was determined under similar conditions.

As a comparison, the stability of conventional sodium perborate monohydrate (prepared by fluid bed drying of sodium perborate tetrahydrate obtained by crystallization) was determined under similar conditions.

These flowable powders can be adjusted with respect to their particle size by thermal drying methods, in particular by spray drying, fluidised bed drying, fluid bed spray drying, fluid bed spray granulation or fluid bed drying.

The revolutionary, patent pending TwinPro® equipment unites two previously separate processes – high shear granulation and fluid bed drying – in a continuous batch process.

The fluid bed spray drying of the dispersions was implemented on a fluid bed laboratory unit of the type WPF-Mini of the company DMR Prozesstechnologie (Dresden, Germany) in a nitrogen atmosphere.

The fluid bed spray drying is implemented in a nitrogen atmosphere, a nitrogen temperature of 80° C. to 230° C., preferably of 120° C. to 190° C., particularly preferred of 140° C. to 180° C., being used.

Drying of the aqueous dispersion obtained preferably takes place by spray drying, freeze drying, fluid bed drying, drum drying and/or high speed drying, spray drying being particularly preferred and it being possible for spraying to take place by means of a spray wheel, a single or multiple substance nozzle.

Generally speaking, therefore, the silica sols are added to the polymer dispersions before the polymer dispersions are introduced into a drying device, such as spray-drying, fluid-bed drying or freeze-drying systems.

Consequently, for the drying process a greater quantity of water has to be evaporated than from highly pressed-out filtered pigment pastes during the frequently applicable fluid-bed drying.

In addition to spray drying, these methods are for example fluid-bed drying, rolling granulation and drying or freeze-drying alone or in combination.

Drying can be carried out according to known processes, for example by means of fluid bed drying, freeze drying or spray drying, if appropriate after addition of protective colloids as an atomizing aid.

The dispersion obtained is then usually dried, it being possible to add further additives during and/or after the drying, the drying preferably being effected by means of spray drying, freeze drying, fluid-bed drying, drum drying, granulation or high-speed drying, and spray drying being particularly preferred, and it being possible to effect the spraying, for example, by means of a spray wheel or a one-fluid or multi-fluid nozzle.

A suitable method for drying is, in particular, spray drying, especially single-material spray drying using high-pressure nozzles or spiral chamber nozzles, or plate spray drying, freeze-drying with upstream or downstream granulation, or spray-freeze drying, build-up granulation, for example by the plate or drum granulation process, optionally with partially predried product, fluidized-bed drying and granulation, mixer agglomeration, and mixer drying, if appropriate in combination with fluidized-bed or fluid-bed drying.

Methods such as mix-agglomeration in suspension, if appropriate with downstream fluidized-bed or fluid-bed drying, granulation by means of paste-forming with downstream after drying, and comminution or pelleting and steam-jet agglomeration, are also suitable.

To prepare the polymer powders the aqueous dispersions, following addition of protective colloids as spraying aids if desired, are dried, by means of fluid-bed drying, freeze drying or spray drying, for example.

For more than 45 years we have been developing and constructing fluid bed systems for drying, cooling and spray granulation of various organic and non-organic products.