Packaging Processing Bid on Equipment

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1 Packaging - Processing BOCHI 190 Packaging Processing

2 With the BOCHI 190 Mini Spray Dryer you gain... e mtime The compact design and small dimensions of the apparatus make it possible for you to save a considerable amount of time compared to larger and pilot equipment. Thanks to the glass components the apparatus can be cleaned in a few minutes and is then ready for the next process. money Only ml solution or suspension and the corresponding quantities of product suffice to obtain the first results! Expensive pilot runs need only (Ste carried out when successful results have been obtained with the use of the Mini Spray Dryer. laboratory space The Mini Spray Dryer uses only 0.5 m2 of your laboratory bench. zw.41/444,t;e ' a large range of *applications Spray drying and micronization Structural changes Microencapsulation Recovering synthetic and extraction products Packaging - Processing I

3 The operation principle The Mini Spray Dryer operates on the principle of nozzle spraying in parallel flow, i.e., the sprayed product and the drying air flow in the same direction (111s.1 and 2). Flow of drying air Flow diagram of product and Spray nozzle 1 Air intake 2 Heating 3 Flow stabilized entrance into the drying chamber 4 Cyclone separates the product from the air stream 5 Aspirator 6 Temperature sensor «air inlet». This temperature is regulated by the heater. 7 Temperature sensor «air outlet». The optimum selection of the temperature difference between the «inlet» and «outlet» temperatures is one of the most. important aspects of spray drying. The outlet temperature cannot be set as desired since it results from a combination between the inlet temperature aspirator setting and product-feed pump performance. 8 Receiving vessel for the final product Operating elements A Solution, emulsion or dispersion of the product B Peristaltic feed pump C Product channel D Connection for spray flow (pressurized air or inert gas). E Connection for cooling water F Nozzle needle with twist channel The needle can be used to clear the nozzle should it become clogged by the product. For difficult products, the nozzle needle can be operated automatically. This device is available as an accessory. The clear placing of the switches and regulators makes the Mini Spray Dryer very easy to operate. The LED-indicators for «inlet» and «outlet» temperatures make the reading easy and accurate. Packaging - Processing a Main on/off switch b Regulator and indicator for spray flow c Switch and regulator for feed pump d Switch and regulator for aspirator e Switch, indicator and regulator for heating f Digital indicator «inlet temperature» g Digital indicator «outlet» temperature h Connecting sockets for recorder

4 Application examples of the Mini Spray Dryer 1. Spray Drying Most of real or colloidal solutions, as well as emulsions and dispersions can be spray dried, provided that the dried product has the characteristics of solid matter. Today the most frequently used method for drying aqueous extracts or solutions is freeze-drying (Iyophilization) which is rather time consuming. The result most of the time, is a «soft cake», which is usually ground to give a dry but very hygroscopic powder. When the Mini Spray Dryer is used, the dried powder is obtained within a few minutes in the form of a uniform powder. It is much less hygroscopic than a lyophilized product. Ingredients which are sensitive to heat, such as enzymes, antibiotics, etc., retain their entire activity. Example: The spray drying and micronization of sodium sulphite Sodium sulphite crystals prior to dissolution. They often have a particle size more than 100 and are not easy to dissolve. After being spray dried, the same product has an amorphous form with an average particle size of 4-8 [.t. This shows that the surface area of an active substance can be increased many times by micronization which increas'es its activity. 2. Preparation of synthetic or extraction products Packaging - Processing Today the usual process is to concentrate the extracted product and dry it under vacuum. Very often additional steps such as filtering, centrifuging, etc. are necessary, increasing the likelihood of contamination. In the Mini Spray Dryer the product is added in the liquid form and emerges as a fine, dry powder. Thermal shocks are avoided and contamination is minimized, since the receiving vessel is connected directly to the cyclone.

5 3. Spray Agglomeration 4. Microencapsulation A microencapsulation is obtained by homogenizing the liquid product with a solution of the filmogenic material (protecting material). By atomizing the emulsion in the Mini Spray Dryer, a final product is obtained in the form of hollow globules with a diameter of consisting of a «matrix» mass in which the product is encapsuled. In the process of powder coating a fine product is «glued together» with the aid of a filmogen. This method is used mainly for liquid products which are sensitive to: moisture the ambient atmosphere oxidation contact with other products in a powder form evaporation, i.e., aromas or perfumes This process is used to obtain an improved flowability of some inorganic products. Or if: liquids have to be added to a powder it is necessary to release a product or active ingredient under specific conditions, such as: at a certain temperature gastro-soluble or gastro-resistant pharmaceutical products Example: Microencapsulation of an aroma oil in a carrier substance (filmogen). The hypertrophy shows the homogenized emulsion. Carrier substance/aroma oil Ratio: 70% carrier (filmogen) 30% aroma oil After spray drying Here one can recognize the embedded aroma oil droplets in the «matrix» mass. The diameter of the globules ranges from in this particular case. Or 5. Englobe Englobing is carried out the same way as microencapsulation, a solid product instead of a liquid is used. A solution or dispersion is prepared from the product to be processed, a filmogen and a suitable solvent (usually water) is spray dried. he final product emerges in the orm of small globules. Contrary to the microencapsulation, the product is not 100% encapsulated and protected. For many applications it is advantageous for a small part of the product to be freely accessible on the surface. Important fields of application for the Mini Spray Dryer Food and feed Pharmaceutical Plastics Polymers and resins Biochemicals Pigments and dyes Aromas Blood Ceramic products Milk and egg products Cereals Plant and vegetable extracts Packaging - Processing Soaps and detergents Perfumes and flavors Bid on Equipmen

6 Mini. -Spray Dryer BOCHI 190 Technical specifications and accessories Main voltage Power consumption Current consumption Max.temperature/drying air Max. drying air flow Compressed air pressure Compressed air consumption Dimensions (width/depth/height) Weight Shipping Carton volume Shipping weight 220V/60Hz 2600W 14A 220 C ca. 60 m3/hr 5-8 bar max.1000ni/h 50 x 60 x 100 cm 57 kg approx. 0.8 m3 approx. 71 kg Accessories Nozzle-Set for change to 00.7 mm (for viscous substances) with corresponding mixing needle Automatic/Pneumatic nozzle cleaning unit for 200V/60Hz Aspirator filter, complete Mini Spray Dryer BUCHI 190 Standard version compl. with 1 Glass set, nozzle with mm, manual nozzle needle, 2 m exhaust tube, supply air tubing, 220V, 60Hz Equipped with aspirator filter BRINKMANN Muality products for research and control A Subject to changes without notice Printed in Switzerland Brinkmann Instruments, Inc. Cantiague Road Westbury, NY In New York, Packaging Processing In Canada: 50 Galaxy Blvd. Rexdale, Ont. M9W 4Y