Spray-drying method

Catalyst Y-G was prepared in conformity with the spray-drying method of Yates and Garland 27). Ni(N03)2 was dissolved in a small amount of distilled water, whereupon acetone and the requisite amount of aerosil were successively added to it. The slurry was transferred to an atomizer and sprayed with continuous agitation. The spray was directed to a glass surface and the particles adhering to this surface were dried by leading a stream of air over them. 

Giunchedi P, Gavini E, Bonacucina G, Palmieri GF. Tabletted polylactide microspheres prepared by a w/o emulsion-spray drying method. J Microencapsul 2000 17(6) 711-720. 

A poorly water-soluble glycogen phosphorylase inhibitor with solubility of about 1 mg/mLwas processed into a solid dispersion with 10 wt% drug and 90 wt% HPMCAS using a solvent-based (acetone) spray-drying method. The resulting solid-dispersion particles with a mean diameter of 5-20 microns were shown to be essentially amorphous by a powday diffraction analysis. 

In a spray-drying method of encapsulation, Zhao and Whistler (1994) suspended starch to a concentration of 30% in water containing 0.1-1.0% gelatin or any of a number of polysaccharide bonding agents the suspension was forced through an orifice (2 mm diameter) under 80-100 psig at an inlet temperature of 120°C and outlet temperature of 76°C. Porous 10-40-nm-diameter spherical capsules were obtained that were then immersed in peppermint oil. After diffusion of the peppermint oil into the capsules, the spheres were rinsed free of oil and coated in a fluidized bed with a 3%... 

The chapters in Characterization and Catalyst Development An Interactive Approach, assembled from both academic and industrial contributors, give a unique perspective on catalyst development Some chapters thoroughly characterize the catalyst prior to plant evaluation, whereas others utilize characterization to explain performance variances. Some new types of catalysts incorporated into this volume include the preparation of novel catalyst supports based on alumina and hydrous titanates. Attrition-resistant catalysts and ultrafine ceramics were prepared by modified spray-drying methods. New catalyst compositions based on vanadium-containing anionic clays were proposed for oxidation. A recently commercialized catalyst based on magnesium spinel was proposed for use in the abatement of sulfur oxide pollutants in fluid... 

Spray drying methods can also be used. Here, one first dissolves the reactants in a medium, preferably H2O. Small droplets are transported in a gas stream and heated, resulting in a very fast evaporation of H2O. As a result, an intimate reaction mixture is obtained. 

Instead of an electronic furnace, an r.f. inductively coupled plasma (ICP) is also used to generate high temperatures. This method is named a spray lCP technique and has been applied for a wide variety of oxides.Another variation of the spray pyrolysis is the spray- drying method that uses slurry or sol of metal... 

He P, Davis SS, Ilium L. Sustained release chitosan microsphere produced by novel spray drying methods. / Microencapsul 1999 16 343-355. 

Snyder HE, Vosgber MJ, Varga CM, Inventors Ncktar Therapeutics, Inc., assignee. Spray drying methods and related compositions. US patent 20030124193. 2003. 

Skalko-Basnet N, Pavelin Z, Becirevic-Lacan M. Liposomes containing drug and cyclodextrin prepared by the one-step spray-drying method. Drug Dev Ind Pharm 26(12) 1279-1284, 2000. 

While many other microencapsulation techniques also use surface and in situ polymerization methods or, generally, interfacial reactions to produce soluble or insoluble and impermeable or permeable capsule walls, in addition to the coating and spray drying methods that were discussed previously, a growing number of processes de-... 

The cathode material, Lao.. i(Sro,4oFeo.8oCoo.2o03.6 was synthesized by spray drying method. After calcination and ball-milling, the cathode powder was screen printed on a 5x5 cm half cell with a electroMe prepared by sol-gel method, using an ethyl cellulose binder and a terpineol-based solvent . The area of the cathode layers was 4x4 cm with a thickness of about 50 pm. The cathode was dried and no sinter process was carried out before the electrochemical cell test. 

Ionotropic gelation technique combined with a spray drying method... 

These measures, performed using laser granulometry, show that the spray-drying method allows us to obtain a thinner and more homogenous powder than the powder obtained using an agate mortar. 

The spray drying method is most important for drying liquid food products and has received mnch experimental study. Spray drying by definition is the transformation of a feed... 

Figure 28 (A) BSA-release profiles from the PLA-coated PIBCA microcapsules prepared by spray-drying method (B) BSA-release profiles from poly(DL-lactic acid) and poly(lactic-co-glycolic acid)-coated PIBCA microcapsules. (From Ref. 78.)...

Cho JS, Jung KY, Son MY, Kang YC (2014) Large-scale production of spherical Y203 Eu phosphor powders with narrow size distribution using a two-step spray drying method. Rsc Adv 4 62965-62970... 

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