Industrial minerals, today and tomorrow; the raw materials to build the upper Midwest

1992 ◽  
Author(s):  
P.K. Sims ◽  
Sarah Chadima ◽  
R.F. Biek
Keyword(s):  
Raw Materials ◽  
Industrial Minerals ◽  
Upper Midwest

scholarly journals Industrial minerals of the Fennoscandian Shield and their contribution to progress in the mineral-raw materials balance of global economy

2019 ◽  
Author(s):  
Владимир Щипцов
Keyword(s):  
Global Economy ◽  
Raw Materials ◽  
Fennoscandian Shield ◽  
Mineral Deposits ◽  
Market Demand ◽  
Industrial Minerals ◽  
Geological Evolution ◽  
Industrial Mineral ◽  
Environmental Requirements

The Fennoscandian Shield is a megastructure, which has actively evolved since the early stages of earth crust formation (> 3.5 Ga) and a sequence of geological regimes during subsequent geological evolution paralleled by the formation of various types of industrial mineral deposits. The paper shows the important role of the shield’s industrial minerals in the exploitation of global useful mineral deposits played for decades. The industrial mineral potential and its dependence on socio-economic conditions, environmental requirements and market demand are described.

scholarly journals Log Truck Value Analysis from Increased Rail Usage

Forests ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 677
Author(s):  
Sangpil Ko ◽  
Pasi Lautala ◽  
Kuilin Zhang
Keyword(s):  
Case Studies ◽  
Raw Materials ◽  
Forest Products ◽  
Forest Products Industry ◽  
Upper Midwest ◽  
Time Efficiency ◽  
Value Analysis ◽  
Fuel Prices ◽  
The Impact

Over the past several decades, the transportation of raw materials (logs) has increasingly shifted from the railway to trucks. However, the long-term sustainability of this shift is being questioned due to the shortage of truck drivers, fluctuation of fuel prices, and changes in hours of service laws. The industry is interested in the possibility to shift more logs back to the railway but the impact of such a shift on truckers has not been investigated. This study attempted to quantify the impact of such a change on the operations of log truckers by calculating time efficiency (percentage of daily hours of service for revenue activities) and value efficiency (average loaded versus total ton-kilometers per day) between a truck only and multimodal (truck/rail) alternatives. We used actual data from the forest products industry companies and truck performance data from an earlier study to investigate the impact through case studies in four different locations of the upper Midwest, US. The results of our analysis revealed that in three out of our four case studies, re-routing log movements through rail yard/siding improved the time efficiency and value efficiency. Finally, our sensitivity analysis found that increases in average truck speed and maximum hours or service had higher impact on multimodal transportation than in truck-only system.

scholarly journals The Effect of Beneficiation on Some Properties of Osun State Ceramic Raw Materials

2019 ◽  
Vol 3 (3) ◽  
pp. 62-66
Author(s):  
Oluranti Adetunji Abiola ◽  
Adekola Olayinka Oke ◽  
Babatunde Victor Omidiji ◽  
Dare Aderibigbe Adetan
Keyword(s):  
Aluminum Content ◽  
Raw Materials ◽  
Silica Sand ◽  
Iron Impurity ◽  
Industrial Minerals ◽  
Ceramic Tiles ◽  
State Ceramic ◽  
Pelletron Accelerator ◽  
Water Alcohol

Clay, feldspar and silica sand are important industrial minerals which often need treatment commonly known as beneficiation to improve the quality of ceramic tiles produced from these materials. The different minerals, after sorting, were treated separately in distilled water, alcohol and hydrochloric acid before being crushed in a ball mill; they were then characterized using a pelletron accelerator. The results show an increased silicon content for clay, silica sand and feldspar; and reduced aluminum content for clay and silica sand but not for feldspar. Iron impurity and its oxide are also shown to reduce by over 50% in all the minerals while potassium was found to be the dominant element in feldspar among the defining elements. In conclusion, the increased quartz in the mineral will improve the hardness, density, porosity, and rigidity of ceramic tiles as well as providing support and controlling shrinkage. Furthermore, increasing the mineral quotient in feldspar will enhance its fluxing potential.

Chemically Treated Submicron Illite Clays for Product with Improved Strength

2015 ◽  
Vol 1117 ◽  
pp. 152-155
Author(s):  
Liga Grase ◽  
Gundars Mezinskis ◽  
Inta Vitina
Keyword(s):  
Electron Microscopy ◽  
Raw Materials ◽  
Nitrogen Adsorption ◽  
Raw Material ◽  
Industrial Minerals ◽  
X Ray Diffraction ◽  
Adsorption Method ◽  
X Ray ◽  
Different Temperatures ◽  
Scanning Electron

A variety of industrial minerals, such as kaolinite, feldspars, and etc., have been used as solid raw materials in the geopolymerization technology. The illite-containing raw material in this study was obtained by the use of sedimentation method. Clay and dust fractions was subjected to the treatment with NaOH alkaline solution and afterwards treated at different temperatures. Results obtained by X-ray diffraction, Scanning electron microscopy, nitrogen adsorption method confirmed the usability of Liepas deposit homogenized gray and red clays for possible realization of geopolymer method.

scholarly journals Production, Reserves, and Processing of Feldspar and Feldspathoid Rocks in the Czech Republic from 2005 to 2019—An Overview

Minerals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 722 ◽  
Author(s):  
Jan Zahradník ◽  
Jakub Jirásek ◽  
Jaromír Starý ◽  
Martin Sivek
Keyword(s):  
Czech Republic ◽  
Nepheline Syenite ◽  
Raw Materials ◽  
Sedimentary Rocks ◽  
Industrial Minerals ◽  
The Czech Republic ◽  
Granitic Pegmatites ◽  
Mine Production ◽  
Granitoid Rocks

This paper aims to characterize and interpret the trends in reserves, resources, and mine production of feldspar and feldspathoid rocks during 2005–2019 in the Czech Republic. With over 101 Mt of total resources and 22 Mt of reserves, feldspar belongs to the crucial industrial minerals of the Czech Republic. With annual outputs of approximately 400–450 kt of feldspars and 20–35 kt of feldspathoid rocks (nepheline syenite), the Czech Republic ranks among the top European and world feldspar producers. Most of the production comes from leucocratic granitoid rocks (key active deposit: Krásno-Vysoký Kámen), followed by sedimentary rocks (key active deposit: Halámky), and granitic pegmatites (key active deposit: Luženičky). Nepheline syenite is mined at a single deposit. All deposits are extracted from open pits (quarries). Ongoing geological prospecting and exploration for new deposits are increasing available reserves and resources. The feldspar raw materials are used in the domestic glass and ceramic industries, while more than 50% is exported, generally to Poland and Germany.

New Route of Utilization of Pegmatites Tailings to Application as a Ceramics Raw Materials

2015 ◽  
Vol 820 ◽  
pp. 18-23
Author(s):  
A.L. Silva ◽  
E.W.V. Sousa
Keyword(s):  
High Purity ◽  
Ceramic Industry ◽  
Raw Materials ◽  
Raw Material ◽  
Paper Pulp ◽  
Industrial Minerals ◽  
Process Route ◽  
Consumer Markets ◽  
New Process

The proposal to obtain a new route for exploitation of tailings from pegmatite emerged from the need of many companies that showed to reuse of these tailings as raw materials ceramics. The pegmatites represent a large part of available industrial minerals. These can be classified into: kaolin, feldspar, mica, quartz and metallic minerals such as tantalite / columbite and others. The consumer markets for these minerals are glassmaking, ceramic industries, paper, pulp, metallurgy, etc. Order for the product is fit for sale ceramics and metals companies must be of high purity of this raw material. Therefore, the process of separation of these minerals must be carried out as effectively as possible. In this study, surveys have been made to the development of a new process route which facilitates, an optimized manner, separation from pegmatite, concentrated in the waste process of extracting companies, so that a better product shall be passed through the ceramic industry.

Role of technological researches in development of the mineral raw materials complex of the Timan-North Ural region

2018 ◽  
Vol 5 ◽  
pp. 38-47
Author(s):  
I.N. Burtsev ◽  
◽  
O.B. Kotova ◽  
D.V. Kuzmin ◽  
D.O. Mashin ◽  
...  
Keyword(s):  
Oil Shale ◽  
Raw Materials ◽  
Mineral Resources ◽  
Ural Region ◽  
Industrial Minerals ◽  
Mineral Raw Materials ◽  
Technological Assessment ◽  
Effective Use

Actual problems of a technological assessment of mineral raw materials of the Timan-North Ural region are considered. The role of scientific developments in development and effective use of mineral resources of the region is shown. Results of technological researches of coals, oil shale, bauxites, titanium ores, industrial minerals are given.

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