Download Agglomeration in Industry: Occurrence and Applications by Wolfgang Pietsch(auth.) PDF

By Wolfgang Pietsch(auth.)

An up to date assessment facing the incidence and key purposes of agglomeration, together with undesirable adhesion and important measurement expansion in pharmaceutical, foodstuff and animal feed, chemical, fertilizer and agrochemical, mineral, construction fabric and ceramic, steel, stable gas, in addition to different industries. additionally, the booklet emphasizes fresh advancements on the point of unmarried debris and functions of agglomeration phenomena in nanotechnology.

the writer has an enormous educational and business adventure as researcher, instructor, developer, clothier, seller, and consumer. he's a professional and advisor within the box of agglomeration, its applied sciences and items. This history makes the special overview of the topic attainable. Wolfgang Pietsch has held a few prime positions in either US and German businesses and is a widespread speaker at meetings and seminars. He has already written 3 previous books on agglomeration.

meant for everyone operating in businesses that strategy and deal with particulate solids, this e-book is helping in figuring out and controlling undesirable agglomeration in addition to selling the applying, improvement, and development of equipment for the valuable use of agglomeration.Content:
Chapter 1 creation (pages 1–2):
Chapter 2 Agglomeration as a normal, self sufficient, and Interdisciplinary box of technology (pages 3–6):
Chapter three Agglomeration basics (pages 7–21):
Chapter four Undesired Agglomeration:Methods of warding off or Lessening its influence (pages 23–36):
Chapter five necessary makes use of of Agglomeration:Agglomeration applied sciences and techniques (pages 37–58):
Chapter 6 business purposes of dimension growth by way of Agglomeration (pages 59–478):
Chapter 7 Powder Metallurgy (pages 479–483):
Chapter eight purposes in Environmental regulate (pages 485–539):
Chapter nine improvement of business functions (pages 541–588):
Chapter 10 Optimization and Troubleshooting of Agglomeration platforms (pages 589–631):
Chapter eleven functions of Agglomeration Phenomena for unmarried debris and in Nanotechnologies (pages 633–653):
Chapter 12 Outlook (pages 655–659):
Chapter thirteen Bibliography (pages 661–691):
Chapter 14 thesaurus of Application?Related phrases linked to Agglomeration (pages 693–719):

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Example text

The resulting intermediate product can then be blended with the other components and no longer induces caking. An almost trivial precaution is very often to lower the moisture content. However, this is not always necessary. Different maximum moisture levels exist that depend on the material. It was found during microscopic studies that caking usually resulted from bonding by the crystals of soluble salts. These crystals often covered the entire granule surface in the form of a veneer or hull. Those salts migrated to the surface of the granule as a solution, leaving numerous small cavities within.

97], the size of the droplets produced by even the finest liquid spray nozzles is often much larger than that of the agglomerate forming primary particles. 1], nucleus formation in a dense tumbling particle bed (type I process) occurs as depicted in Fig. 5. As a droplet contacts fine particulate solids, the initial distribution of binding liquid, which depends on its wetting characteristics, influences the sizes of the resulting nuclei. Perfect wetting results in relatively strong large primary agglomerates that are saturated with liquid and are consolidated and held together by capillary forces, while imperfect wetting produces moistened particles, which may coalesce later and produce much weaker nuclei with different sizes which, in addition, are prone to attrition.

Agglomerates or flocs that are already intentionally, for example to improve handling characteristics of fine powders, or unintentionally present prior to mixing can be destroyed by shear forces in the liquid. Consequently, the generation of the highest possible shear gradient is often considered advantageous when selecting agitators. During extended storage, the particles in pharmaceutical suspensions often form agglomerates that can no longer be destroyed by shaking the preparation. This is of particular concern in, for example, eye drops.

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