Blender Mixing

FIG. 18-33 Lightnin line blender. (Mixing Equipment Co., Inc., with permission.)... 

Muddle the strawberries with the lime juice. In a blender, mix all the ingredients (except the hollowed lime half and 2 ounces tequila), blending at high speed for 1 minute. Pour into a 36-ounce goblet glass. Float the lime half on top with 2 ounces of tequila poured into it. Garnish with the parasols and flamingo straws. 

Capacity of Blender, Mixing time, mixing speed... 

Add ingredients in order listed to powder blender. Mix until uni form. 

Add the sodium bicarbonate and the sodium hexametaphosphate to the blender. Mix five minutes. Add the Rhodacal DS-10 with mixing. Add the optical brightener with mixing. Mix until uni form. 

Each student should prepare two 100-mL volumetric flasks. One will be labeled blank, the other sample. To each flask add 1 mL of 0.5 N NaOH solution. To the blank flask add 10 mL of distilled water. To the sample flask add 10 mL of the raisin extract. (Use a volumetric pipet to withdraw 10 mL from the bottom portion of the blender.) Mix both solutions by swirling them for 15-30 sec. 

For semi-solid and emulsified dressings, transfer a sample to a larger vessel, mix for ca. 2 min. until homogeneous and without delay, remove a portion for analysis. Blend separable dressings with 0.20 g of egg albumen powder as emulsifier per 100 g of sample in a high-speed blender. Mix thoroughly immediately prior to removing an aliquot for analysis. Correct analytical results for added emulsifier (include appropriate quantity of emulsifier in the blank determination). 

The two components (W and C) must be blended thoroughly prior to carburization. This is done in different types of equipment, like V or double cone blenders, mixing ball mills, or high-energy mixers. An even blend is of importance because, during carburization, carbon atoms can only move via diffusion or as methane molecules over very short distances. Pelletizing or compacting enhances diffusion and increases the furnace capacity. 

In the 2- or 3-alloy method, the alloys are usually separately milled to their respective optimal particle sizes. They are then mixed in dry form using tumble blenders. Mixing coarse, individually pre-ground powders followed by a final hall-milling of the blend is also done. 

Most formulations are a multistep process. At a minimum, components are combined in a blender, mixed, sieved, and tableted/filled into capsules. Additional steps such as granulation, drying are also included as demanded by the formulation strategy. Since there are many steps in this process, there are many points at which the material can be tested in process to determine assay, and drug uniformity. The obvious place to look for uniformity will be the final product, typically the individual tablet or capsule. An accurate and rapid uniformity of dosage... 

Solid Active Ingredient - Active, solid diluent, and wetting/dispersing agents, if used, must be homogeneously mixed. An effective and simple device is the ribbon blender. All ingredients in the final product are added to the blender, mixed, then delivered to the next operation. Order of addition is rarely important. Blender size and configuration are determined only by the batch size and preference of the formulator. 

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