Spray drying introduction

The introduction of concentrated laundry detergent powders in Japan during 1986-1987 produced a substantial increase in the consumption of LAB in the subsequent 3-4 years as the market changed from low-density, spray-dried powders to the concentrated (compact) products. In these products, which may contain up to 40% surfactant, the cost/performance advantages of LAS are of significance. In addition, LAB sulfonic acid is well suited for the production of high-active, high-density (about 1.0 g/cm3) laundry powders by routes other... 

Fine particle powders can be produced by various methods, such as micronization or spray drying. The physicochemical nature of these fine particles largely defines the stability of the bnlk powder, which in turn is critical to the long-term effective performance of the dry powder product. The section Fine Particles and the Solid State in this article is an introduction to understanding better the fundamental properties that underlie the behavior of bulk powders. Commentary on the various means of producing fine powders follows in the section Powder Production Formulation and Processing. ... 

Long GE. Spraying theory and practice. Chem Eng March 1978 13 73-77. Masters K. Spray Drying, an Introduction to Principles, Operational Practice and Application. 2nd ed. New York John Wiley Sons Inc., 1976. 

Even more recent has been the introduction of cncapsiilaiion/exirusion. which also permits conversion of Havorants. such as essential oils, into solid form. Spray drying is nut required. In the encapsulation process, the flavor substance is "enrobed." A viscous carbohydrate, with less than ]O f water, is created by heating, after which an emulsifier and acid flavoring ingredients are added. The ingredients are reacted under pressure in a cool alcohol bath, and then the product is extruded to fornt filaments, Thus, the final easy-to-handle product contains the flavor within a small capsule. 

Buma, T.J. 1971. Free fat in spray-dried whole milk. 1. General introduction and brief review of literature. Neth. Milk Dairy J. 25, 33-41. 

K. Masters, Spray Drying. An Introduction to Principles, Operating Practices, and Applications,... 

Masters, K. 1972. Spray Drying An Introduction to Principles, Operational Practice and Applications, Leonard Hill, London, U.K. 

An example of an industrial spray-drying system where the combined sorption-spray drying is applied for manufacturing of forage lysine-based concentrates is shown in Figure 12.16. As reported by Tutova and Kuts (1987), introduction of wheat bran directly into the spray cone of dispersed lysine (with the mass ratio of 0.7 to 1.0 kg of bran/kg of dry lysine) markedly improved the product quahty. In particular, the following features were claimed ... 

Alternate Modes of Catalyst Physisorption. Other forms of catalyst delivery to the reactor have been implemented. Catalyst solution has been injected directly into fluidized-bed gas-phase reactors (39), evidently creating a mist of in situ spray-dried catalyst. Spray-dried catalyst has been prepared ex situ as well, in an attempt to better control the morphology of the particles (40). Solid catal54ically active materials have also resulted from precipitation of MAO by aliphatic solvent (41) and through a low conversion polymerization (prepolymerization) prior to introduction to the large-scale polymerization medium (42). 

Paudel A, Loyson Y, Van den Mooter G (2013b) An investigation into the effect of spray drying temperature and atomizing conditions on miscibility, physical stability, and performance of naproxen-PVP K 25 solid dispersions. J Pharm Sci 102 1249-1267 Pavia DL, Lampman GM, Kriz GS (2001) Infrared spectroscopy in Introduction to spectroscopy a guide for students of organic chemistry, 3rd edn. WB Saunders Co., Philadelphia... 

Masters K. Introduction. Spray Drying Handbook. 5th ed. Essex, U.K Longman Scientific Technical, 1991 1-20. 

The introduction of 70% solids sluny clays in the 1970s was a boon to both the papermakers and the clay processors. The papermakers welcomed the ease of handling of the slurry and the reduced manpower requirements in the additives preparation area. The clay producers were able to realize large cost savings by not having to spray dry most of the clay prior to shipment. 

On line additions of aqueous standard solutions for the calibration of LA-ICP-MS including a comparison of wet and dry plasma conditions are discussed by O Connor et al.ls For solution calibration of standard solutions the authors used a 100 (xl PFA nebulizer together with a cyclonic spray chamber or a MCN-6000 sample introduction system with desolvator, to study the wet and dry plasma, respectively. A polypropylene Y piece was applied to mix the laser ablated material and the nebulized standard solutions. The authors found that the on line addition of water is the preferred mode of operation for quantification by LA-ICP-MS, i.e., wet plasma is more stable (improved standard deviation of sensitivity ratios). 

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