Quality agglomerate

The well-defined motion and growth patterns in agglomerating discs allows some generalized statements in regard to agglomerate quality. Characteristics that are of particular importance are ... 

In pressure agglomeration, it is preferable to meter recycle into the mixer. However, when product quality does not need to be tightly controlled, recycle can be added to the fresh feed in the agglomerator. The ratio of fresh feed to recycle should be kept constant, however, because variations in feed composition change the agglomerate quality which, in turn, influences the recycle rate. Therefore, a surge bin for the recycle must be provided from which the fines are metered back into the system. (Note This statement is valid for all agglomeration methods.)... 

S.C. Bouffard, Agglomeration for Heap Leaching Equipment Design, Agglomerate Quality Control, and Impact on the Heap Eeach Process, Mineral Engineering, 21 (2008), 1115-1125. 

Filter mass washing can influence the quality of water being filtered. Changes may be consequent to fermentation, agglomeration, or formation of preferential channels liable to occur if backwashing is inadequate. 

Each stage of particle formation is controlled variously by the type of reactor, i.e. gas-liquid contacting apparatus. Gas-liquid mass transfer phenomena determine the level of solute supersaturation and its spatial distribution in the liquid phase the counterpart role in liquid-liquid reaction systems may be played by micromixing phenomena. The agglomeration and subsequent ageing processes are likely to be affected by the flow dynamics such as motion of the suspension of solids and the fluid shear stress distribution. Thus, the choice of reactor is of substantial importance for the tailoring of product quality as well as for production efficiency. 

Although measurement of the compressive strength of agglomerates is certainly more convenient for routine checking and quality control, the tensile strength is a more fundamental property, since in theory it can be... 

The degree of contamination governs the performance and product quality and affects the utility value of the end product. Secondary contaminants such as additive agglomerates are included in the term contamination . Particularly in case of film polymers, such particles diminish the quality of audio or video tapes due to the vulnerability of films to this drop-out phenomenon. 

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