Quality and processability

Clean up includes identifying, gathering, storing (when appropriate), and classifying materials associated with a specific toll. Decisions can then be made as to which raw materials, intermediates, and product will be shipped back to the client or kept by the toller. Some off-spec product, retained samples, or unused intermediates may be considered waste materials at this point. Equipment clean up can be extremely important to preserving quality and process safety integrity prior to the next production run of a new product. 

Solid particles have a distinct form, which can strongly affect their appearance, product quality and processing behaviour. Thus, in addition to chemical composition, particulate solids have to be additionally characterized by particle size and shape. Furthermore, particles can be generated at any point within the process. For example, nucleation occurs within a crystallization process and large particles are broken down to numerous smaller ones in a comminution process or within a drier. 

Further details and specialized information on the mechanisms, product qualities, and processes applied to the heating of coal in solvents can be found in the abundant literature [20], What follows arc some of the results of research conducted at West Virginia University, where investigations of the conversion of coal into pitches suitable for graphite production have been carried out... 

The above simulations as to the occurrence of hot spots once more illustrate the power and promises of LES over RANS-type simulations. The hot spots can never be found by means of a RANS-type of simulation. The same technique was used by Van Vliet et al. (2006) to study the influence of the injector geometry and inlet temperature on product quality and process efficiency in the LDPE reactor. On the contrary, the RANS-based simulations due to R. A. Bakker and Van den Akker (1994, 1996) were pretty much suited to arrive at yield predictions for a fed batch reactor as a whole. 

Relationship Between Polyester Quality and Processability Hands-On Experience... 

The critical equipment affecting the product quality and process capability is effectively maintained. 

More than 20 years ago K.H. Norris first introduced near infrared spectroscopy as a powerful technology in the field of composition analysis of cereals [1]. However, classical spectroscopists did not want to recognize its potential. This tendency still persists but there is no doubt that NIR is now an established technique for characterization of food and provides a convenient analytical tool for quality and process control. 

As described above, NIR is a promising method for food analyses and provides a convenient analytical tool for quality and process control. 

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