Nanotest Hungary Kft.

Háztartási hulladékok, alternatív tüzelő anyagok előkészítése elemanalízishez

A háztartási hulladék minták általában inhomogén, több fázisú, különböző komponensekből álló anyagok. A szintetikus műanyag és szerves koponensek, mint pl. fa, parafa, papír mellett szerveztlen anyagok és akár fémek is megtalálhatók a hulladékokban. Abban az esetben, ha pl. ezek a hulladékok égetőkben kerülnek megsemmisítésre, vagy felhasználásra, mint pl. alternatív tüzelőanyagok, a toxikus és egyéb az égetés folyamatának vezérlése szempontjából fontos komponensek koncentrációjának meghatározására van szükség, amihez megfelelően elő kell készíteni ezeket a mintákat. A külnönböző komponensek és inhomogén összetétel miatt hagyományos őrlő készülékek nem alkalmasak erre a feladatra. Daráló gépekkel viszonylag jól össze lehet aprítani a hulladékokat, viszont a szerves analitikához szükséges szemcseméret nem érhető el velük.

 

Megoldás: alacsony hőmérsékleten történő őrlés

Supermini benchtop WDXRF meets performance requirements of ASTM C114 standard test method for hydraulic cement

In a strictly regulated industry, cement producers must maintain manufacturing processes that are accurate, running efficiently, and thus ensure that their customers receive the highest quality material ideally suited for a specific application. So a cement plant must continuously analyze its products to meet these requirements. The ability to accurately analyze for the major components as well as for minute concentrations of light elements (as low as sodium) has recently been demonstrated on the Rigaku Supermini 200 W benchtop WDXRF spectrometer. This small unit uses a 200 W Pd X-ray tube, has a 12-position sample carousel for automated analysis, and an air-cooled X-ray tube, which eliminates the need for cooling water or a chiller.

Rietveld refinement for a cement sample

The figure below shows the results of a Rietveld refinement for a cement sample using powder diffraction data collected on an Ultima IV multipurpose diffraction system at 298 K.

Limestone Analysis

The approximately 970+ power plants that burn oil and coal to produce electricity in America have been cited as a major source of sulfur dioxide (SO2) emissions. This pollutant can irritate the upper respiratory tract and damage lung tissue, as well as yellowing plant leaves and eating away iron, steel, marble and other solid materials. The demand for limestone is increasing due to a legislated requirement for SO2 flue gas desulphurization systems (scrubbers) to be installed in these facilities. Because of this ever-increasing demand, limestone quarry lab technicians are required to take samplings frequently and respond quickly to certify product ready to release by truck or trainload.

Granite mapping

In an effort to better understand the world around us, geologists are always striving to make new petrographic discoveries about even the most commonplace materials seen every day. Granite is one such material. Due to vast elemental variety found in mined granite, an interesting analytical opportunity presents itself, in which an elemental map or profile analysis capability would be ideal.

In-situ analysis: High temperature · Low temperature · Variable humidity · Reactive gases · Combined XRD/DSC

The ability to measure samples under specific non-ambient conditions is essential in the research and development of many advanced materials. The Ultima IV has a wide range of fully integrated non-ambient configurations, including the world's only commercially available combined XRD/DSC system.

Comparison of wavelength dispersive X-ray fluorescence and energy dispersive X-ray fluorescence techniques

The wavelength-dispersive fluorescence technique (Primini red lines below) has superior resolution and sensitivity, when compared to the alternative energy-dispersive fluorescence method ("EDX" blue lines below). For example, figure below displays the resolving power of the wavelength technique in the area of the titanium (Ti-KA) and barium (Ba-LA) overlap with two distinct peaks, distinguishing it from the amorphous scatter seen in the energy peak at the same region. 

X-ray microdiffraction of the crystalline structure forming a tooth

X-ray diffraction measurements of enamel and dentin, which are the major tissues of a tooth, indicate that they are mostly made of hydroxyapatite. It is not very well known that external treatments, such as laser irradiation, may alter the structure of these components. X-ray microdiffraction is useful to observe the localized influence of laser irradiation on the enamel.