An X-Ray Fluorescence Coating Gauge for Paint Thickness

1977 ◽  
Vol 21 ◽  
pp. 93-104
Author(s):  
Z. Shanfield ◽  
M. Bertin
Keyword(s):  
Quality Control ◽  
Coating Thickness ◽  
Raw Materials ◽  
X Ray ◽  
The World ◽  
Coating Uniformity ◽  
On Line ◽  
Industrial Use ◽  
Paint Thickness

The industrial use of X-ray fluorescence (XRF) coating gauges is a well established practice. For homogeneous coatings such as zinc or tin on steel, on-line XRF gauges are in use around the world. In continuous coating lines coils of uncoated metal are welded to one another and are coated at speeds between 100 and 2000 ft/min. Gauges are used to read cross-sheet coating profiles and determine the average coating thickness through the length of the coil. The motivation for the use of these on-line X-ray instruments is quality control, particularly coating uniformity, and raw materials savings.

PROBLEMS AND PROSPECTS OF INVOLVING ORE PROCESSING WASTE FROM THE TYRNYAUZ DEPOSIT INTO INDUSTRIAL OPERATION

2021 ◽  
Vol 4 (1) ◽  
pp. 86-96
Author(s):  
M.V. Rylnikova ◽  
◽  
M.V. Tsupkina ◽  
R.K. Dzhappuev ◽  
◽  
...  
Keyword(s):  
High Altitude ◽  
Raw Materials ◽  
Ecological Impact ◽  
Processing Waste ◽  
Industrial Operation ◽  
Ore Processing ◽  
The World ◽  
Industrial Use ◽  
Technogenic Raw Materials ◽  
Tailings Dumps

The problem of involving stale ore processing waste from the Tyrnyauz deposit into industrial operation is considered. The world experience of involving technogenic mineral formations in industrial exploitation is summarized, and the main directions of industrial use of technogenic raw materials are determined. The possible ecological impact of tailings dumps located in high-altitude areas on the ecology of the mining region is considered. The data on the formation, operation and composition of the tailings dumps of the Tyrnyauz Tung-sten-Molybdenum Combine (TVMK) are summarized. The problems are formulated and the prospects for the liquidation of tailings dumps by involving man-made raw materials in indus-trial operation are justified.

scholarly journals Cement Quality Control By Using Modern Radiation Methods Of Chemical Analysis In The Process Of Its Production

2019 ◽  
Vol Vol. 14, No.1 ◽  
pp. 15-20
Author(s):  
Yu. Kuchirka ◽  
E. Volodarsky ◽  
Keyword(s):  
Quality Control ◽  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Chemical Analysis ◽  
Neutron Activation ◽  
Quality Management System ◽  
Raw Materials ◽  
Spectral Characteristics ◽  
Cement Production ◽  
X Ray

An essential part of modern quality management system in cement production is state-of-the-art radiation measurement technologies based on methods of neutron activation, X-ray fluorescence and X-ray diffraction chemical analysis of substance. The high speed and accuracy of measuring the characteristics of raw materials and finished products can be achieved by their complex application, thereby ensuring an improving in the level of automation of cement production and the quality of cement in general. The main stages of the portlandcement production process by dry method are considered, including the keypoints of quality control of their implementation by applying mentioned radiation methods of chemical analysis of raw materials and completed product. The metrological problems of their practical implementation in continuous cement production are analyzed, in particular problems of uncertainty assessment, static and dynamic calibration and increase of accuracy of measuring systems that implement neutron activation analysis methods. Shown the directions of their improvement by the use of alternative neutron sources, methods of Monte Carlo N-Particle Transport Code for neutron activation analysis physical processes simulation and machine learning for the efficient processing of spectral characteristics of investigated substances.

X-ray diffraction data of tibolone Δ4 isomer (isotibolone)

2009 ◽  
Vol 24 (4) ◽  
pp. 337-342 ◽  
Author(s):  
Selma Gutierrez Antonio ◽  
Fabio Furlan Ferreira ◽  
Gabriel Lima Barros Araujo ◽  
Jivaldo do Rosario Matos ◽  
Carlos de Oliveira Paiva-Santos
Keyword(s):  
Thermal Analysis ◽  
Quality Control ◽  
Ir Spectroscopy ◽  
Raw Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Drug Products ◽  
Synchrotron Light ◽  
Major Degradation Product

Tibolone is used for hormone reposition of postmenopause women and isotibolone is considered the major degradation product of tibolone. Isotibolone can also be present in tibolone API raw materials due to some inadequate synthesis. Its presence is then necessary to be identified and quantified in the quality control of both API and drug products. In this work we present the indexing of an isotibolone X-ray diffraction pattern measured with synchrotron light (λ=1.2407 Å) in the transmission mode. The characterization of the isotibolone sample by IR spectroscopy, elemental analysis, and thermal analysis are also presented. The isotibolone crystallographic data are a=6.8066 Å, b=20.7350 Å, c=6.4489 Å, β=76.428°, V=884.75 Å3, and space group P21, ρo=1.187 g cm−3, Z=2.

Application of X-ray diffraction techniques to quality control of refractories and raw materials

2021 ◽  
Vol 1 (2) ◽  
pp. 51-59
Author(s):  
T. I. Ivanova ◽  
V. N. Maslov ◽  
S. I. Gershkovich ◽  
F. R. Iksanov ◽  
A. A. Kovalenko ◽  
...  
Keyword(s):  
Quality Control ◽  
Raw Materials ◽  
X Ray Diffraction ◽  
X Ray

Большинство огнеупорных материалов и сырье для их получения являются кристаллическими веществами. Для качественного и количественного определения фазового (минерального) состава этих веществ и для анализа их технологически значимых структурных характеристик может успешно применяться метод рентгеновской дифракции. Рассмотрены примеры исследования основных типов огнеупорных материалов полнопрофильным методом Ритвельда и указаны контролируемые параметры при их производстве. Сделан вывод о важности выявления структурных особенностей минеральных фаз, которые существенно влияют на физико-механические свойства огнеупоров.

Primena suve metode X-Ray senzorskog sortiranja/ prečišćavanja uglja – lignita sa površinskog kopa uglja „GACKO“ 20212, XXIII

2021 ◽  
Vol 23 (2) ◽  
pp. 79-84
Author(s):  
Aca Jovanović ◽  
Mile Bugarin ◽  
Miodrag Šešlija
Keyword(s):  
Process Parameters ◽  
Raw Materials ◽  
Ore Deposits ◽  
Laboratory Research ◽  
Coal Deposit ◽  
X Ray ◽  
Secondary Raw Materials ◽  
The World ◽  
Mining Design ◽  
Technical Solutions

This paper discusses the results of laboratory research and semi-industrial tests of lignite enrichment using X-Ray sensor sorting technology based on which the process parameters for the MMD - Main Mining Design of preparation and treatment of lignite exploited from stratified coal deposit. Also, the paper presents the process and technical solutions given in the MMD. The considered X-Ray Sensor Sorting technology has been successfully applied in the world for about 30 years for separation / sorting of various polymetallic primary and secondary raw materials, for treatment of poor ore deposits as well as for sorting coal from layered deposits.

scholarly journals Mineral Composition and Structural Characterization of the Clinoptilolite Powders Obtained from Zeolite-Rich Tuffs

Minerals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1030
Author(s):  
Ewelina Pabiś-Mazgaj ◽  
Tomasz Gawenda ◽  
Paweł Pichniarczyk ◽  
Agata Stempkowska
Keyword(s):  
Mineral Composition ◽  
Structural Characterization ◽  
Raw Materials ◽  
Wide Spectrum ◽  
Mineral Processing ◽  
Thin Plates ◽  
X Ray ◽  
Wide Range ◽  
The World

Clinoptilolite is a precious zeolite mineral that has the most comprehensive physicochemical properties among all the zeolite group minerals. Due to these unique properties, clinoptilolite has a wide range of applications in many different industries. In Poland, the clinoptilolite occurs only as an accompanying mineral in the sedimentary rocks nearby Rzeszów. In Europe, the abundant clinoptilolite-bearing deposits are located in Slovakia and Ukraine, where clinoptilolite mineralization occurs in the volcanic tuffs. Due to clinoptilolite’s rare performance, it is extremely crucial to manage its deposits in a complementary manner. In this paper, the mineralogical and structural characterization of the clinoptilolite powders obtained by mineral processing of the clinoptilolite-rich tuffs from Slovakia and Ukraine deposits were discussed. The scope of research covered determination of the mineral composition of the tuffs, structural analysis of the clinoptilolite crystals, as well as textural and physical properties of the powders obtained by mineral processing of the tuffs. In addition, this paper includes the comparative study of the most significant zeolite deposits in the world and investigated clinoptilolite-rich tuffs. A wide spectrum of methods was used: X-ray powder diffraction (XRD), thermal analysis (DSC, TG), X-ray fluorescence (XRF), optical microscopy, Scanning Electron Microscopy (SEM-EDS), the laser diffraction technique, and low-temperature nitrogen adsorption/desorption. The test results indicated that the major component of the tuffs is clinoptilolite, which crystallized in the form of very fine-crystalline thin plates. The clinoptilolite mineralization in the Ukrainian and Slovakian tuffs exhibited a strong resemblance to the clinoptilolite crystals in Yemeni and Turkish tuffs. With respect to the mineral composition, the investigated tuffs showed excellent conformity with the Miocene white tuffs from Romania. The Ukrainian and Slovakian tuffs do not reveal the presence of the clay minerals, which is quite common for naturally occurring zeolite-rich rocks in various deposits in the world. The textural features together with mineral composition of the investigated samples incline that they are potentially suitable raw materials for the sorbent of petroleum compounds. Moreover, the obtained results can be useful indicators with respect to the crushing and compaction susceptibility of the Ukrainian and Slovakian clinoptilolite-rich tuffs.

EMERGING TRENDS IN QUALITY CONTROL OF HERBAL MATERIALS

INDIAN DRUGS ◽  
2018 ◽  
Vol 55 (08) ◽  
pp. 5-6
Author(s):  
M. K. Raina ◽  
Keyword(s):  
Quality Control ◽  
Medicinal Plants ◽  
Rural Areas ◽  
Raw Materials ◽  
Academic Research ◽  
Herbal Medicines ◽  
World Population ◽  
Traditional Medicines ◽  
Emerging Trends ◽  
The World

The therapeutic use of medicinal plants gained considerable momentum in the world during the past few decades. Traditional medicines, which are mostly based on the herbal raw materials growing in their respective regions, were used by over 70 percent of the world population as per WHO. The reason for their popularity was due to non-availability of modern medicines in the rural areas and also due to the unaffordability of modern medicines due to their high cost. Quality control of medicinal plants for use in these Traditional medicines has always been a challenge for the scientists working in this field. In our country, with the awareness growing among the people about the safety of Ayurvedic and Herbal medicines / cosmetics, the quality control testing of both raw herbal ingredients and finished formulations was seriously undertaken both by the academic / research institutions and the herbal drug manufacturers.

A hitchhiker’s guide to microscopy and microanalysis using telecommunications, e-mail, and the Internet

1994 ◽  
Vol 52 ◽  
pp. 390-391 ◽  
Author(s):  
Nestor J. Zaluzec
Keyword(s):  
The Internet ◽  
Information Superhighway ◽  
The World ◽  
Exchange Information ◽  
On Line ◽  
Computer Based ◽  
Software And Hardware ◽  
Communication Software ◽  
Basic Ideas ◽  
E Mail

The Information SuperHighway, Email, The Internet, FTP, BBS, Modems, : all buzz words which are becoming more and more routine in our daily life. Confusing terminology? Hopefully it won't be in a few minutes, all you need is to have a handle on a few basic concepts and terms and you will be on-line with the rest of the "telecommunication experts". These terms all refer to some type or aspect of tools associated with a range of computer-based communication software and hardware. They are in fact far less complex than the instruments we use on a day to day basis as microscopist's and microanalyst's. The key is for each of us to know what each is and how to make use of the wealth of information which they can make available to us for the asking. Basically all of these items relate to mechanisms and protocols by which we as scientists can easily exchange information rapidly and efficiently to colleagues in the office down the hall, or half-way around the world using computers and various communications media. The purpose of this tutorial/paper is to outline and demonstrate the basic ideas of some of the major information systems available to all of us today. For the sake of simplicity we will break this presentation down into two distinct (but as we shall see later connected) areas: telecommunications over conventional phone lines, and telecommunications by computer networks. Live tutorial/demonstrations of both procedures will be presented in the Computer Workshop/Software Exchange during the course of the meeting.

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