Applicability of near infrared sorting in the minerals industry
نویسندگان
چکیده
Introduction I t is not possible to eliminate near infrared (NIR) spectroscopy as an analytical technique from our modern daily life. Flinn describes this very comprehensively and includes various application examples of NIR spectroscopy in his article titled “An average day (or how near infrared affects daily life)” in 2005. Applications of NIR spectroscopy in the minerals processing industry were not mentioned in the article in contrast to, for example, applications in the recycling industry. The technique is not yet widely applied in the minerals industry though, as in other industries, its use is expanding rapidly. The following article offers a very brief overview of the applicability of NIR spectroscopy in the minerals industry with specific attention for the latest research on NIR sorting. Since 2008, the Unit of Mineral Processing (AMR) (RWTH Aachen University) has conducted research on the feasibility of NIR sorting. This research has unfolded the potential and led to the implementation of the first NIR sorters in the minerals industry.
منابع مشابه
Hyperspectral Imaging – From Laboratory to In-line Food Sorting
Perfect quality control of food becomes more and more a matter of course. Foreign materialslike pieces of rocks, insects, plastics, carton etc. have to be identified and sorted out. For many years, near-infrared spectroscopy has been a widely-used analytical offline method for quality inspection for small samples in the food and agriculture industry. Up to now, high-speed automatic sorting mach...
متن کاملEmerging Technologies for Non- Destructive Quality Evaluation of Fruit
The development of science and technology, and especially of information technology, has made available many non-destructive methods for analysis of materials, which can also be applied to fruits. The fruit industry needs non-destructive techniques for on-line sorting and certifying high quality fruit. Electronic noses, acoustic methods and optical methods like near infrared spectroscopy are me...
متن کاملInvestigating levels of aflatoxin B1 exposure through the settled dust in the working environment in workers of the dry and wet household waste sorting of the recycling industry
Background & Aim: Aflatoxin B1 (AFB1) acts as a genotoxic, cytotoxic, and a potential hepatocarcinogen agent. Any contact with aflatoxins is a main threat to workers in the waste management industry. On the other hand, just a few studies have investigated occupational exposure to mycotoxins in the aforementioned industry. In this study, the exposure level of workers to dust and AFB1 has been in...
متن کاملDetermining of crystalline silica in respirable dust samples by infrared spectrophotometry in the presence of interferences.
Infrared Spectrophotometry (IR) is now widely used to determine crystalline silica in industrial dust samples. Though the IR method has many advantages when dealing with respirable dust samples, some serious analytical errors are often caused by interference minerals contamination. These minerals have a characteristic absorption band corresponding in position to the analytical peak for crystall...
متن کاملPrediction of Freshness Quality and Phosphate Residue of White Shrimp Products Using Near-Infrared Spectroscopy
Background: The manufacturing of frozen shrimp is an important industry for the economy of Thailand. The objective of this study was to use Near-Infrared (NIR) spectroscopy to determine the freshness quality, including Total Volatile Basic Nitrogen (TVB-N) and Water Holding Capacity (WHC) of white shrimp (whole and chopped shrimp) and phosphate residues of shrimp. Methods: Sixty white shrimp ...
متن کامل