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Visit Salt Mining & Milk Processing Factory - F...
274,21 € *
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Visit Salt Mining & Milk Processing Factory - From Tanga City (Half Day)

Anbieter: Viator – Ein Trip...
Stand: 23.01.2020
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Visit Salt Mining & Milk Processing Plant-From ...
411,32 € *
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Visit Salt Mining & Milk Processing Plant-From Tanga City-Full Day Tour

Anbieter: Viator – Ein Trip...
Stand: 23.01.2020
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Open Pan Salt Making
40,10 € *
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High Quality Content by WIKIPEDIA articles! In Europe virtually all domestic salt is obtained by solution mining of underground salt formations although some is still obtained by the solar evaporation of sea water. Salt is extracted from the Brine using vacuum pans, where brine is heated in a partial vacuum in order to lower the boiling point. In the past salt has been extracted by heating the brine in pans operating at normal atmospheric pressure, known as open pans.

Anbieter: Dodax AT
Stand: 23.01.2020
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Salt-Concrete
29,90 € *
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High Quality Content by WIKIPEDIA articles! Salt-concrete (or salzbeton) is a construction material that is used to reduce the water inflow in mining shafts in salt mines. It is composed of 16% cement, 39% halite, 16% limestone powder, 14% water and 15% sand. Salt-concrete was used for the first time in 1984 in the Kali mine in Rocanville in Canada. A salt-concrete seal was also installed in the Asse II mine in Lower Saxony in 1995. ince the end of the repository for radioactive waste Morsleben in 1998, the salt dome stability deteriorated to a state where it could collapse. Since 2003, a volume of 480.000 m3 of saltconcrete has been pumped into the pit to temporarily stabilize the upper levels. In addition another 4.000.000 m3 of saltconcrete will be used to temporarily stabilize the lower levels.

Anbieter: Dodax AT
Stand: 23.01.2020
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Open Pan Salt Making
39,00 € *
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High Quality Content by WIKIPEDIA articles! In Europe virtually all domestic salt is obtained by solution mining of underground salt formations although some is still obtained by the solar evaporation of sea water. Salt is extracted from the Brine using vacuum pans, where brine is heated in a partial vacuum in order to lower the boiling point. In the past salt has been extracted by heating the brine in pans operating at normal atmospheric pressure, known as open pans.

Anbieter: Dodax
Stand: 23.01.2020
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Mining Industry of Ghana
54,00 € *
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Ghana's economy depends largely on exports of cocoa and gold. Other mineral commodities produced in the country were aluminum, bauxite, diamond, manganese, natural gas, petroleum, salt, and silver. The contribution of Ghana s mining sector to the country s gross domestic product increased from 1.3% in 1991 to an average of about 5% in recent years. Export earnings from minerals averaged 35%, and the sector was one of the largest contributors to Government revenues through the payment of mineral royalties, employee income taxes, and corporate taxes. In 2005, gold production accounted for about 95% of total mining export proceeds.

Anbieter: Dodax
Stand: 23.01.2020
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Eine Zeitreise durch 10.000 Jahre Bergbau in de...
9,90 € *
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Mining in the Eastern and Southern Alps commenced early in the prehistoric past. Particularly the use of the rich mineral raw materials and geo-ressources such as hunting grounds and pastures stimulated or even caused human occupation of Alpine landscapes. However, the presently dominant understanding of the Alps as a recreation park and a traffic block increasingly supersedes the notion of the ancient coherence of the cultural landscape. In the past, periods of an increased interest in the Alpine region [e.g. in copper, salt or iron] and phases of marginalisation [e.g. in the major contexts of the Imperium Romanum or the present] took turns creating a permanent “uphill” and “downhill” as indicated by the exhibition title. This short guide provides for these and other aspects in its nine chapters dealing with the Alps as a physical space and cultural area, with geology and mining, copper, salt, the Romans in the Alps, the Medieval struggle for droits de régale, mining as a public task in Early Modern times, and the question of what remains and will remain of all this in the present and future. The volume is printed in colour throughout and ends with registers of authors and lenders.

Anbieter: Dodax
Stand: 23.01.2020
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Stability analysis methods of underground minin...
84,90 € *
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This book includes own research studies and results regarding, on the one hand, to the problem of stability - reliability of mining works in difficult conditions in geomechanical terms, and on the other hand, the research had also been subject to exploitation of rock salt, meaning micro and macroscopic behavior analysis of salt based on detailed laboratory geomechanical research and in situ, but also by analyzing the stability of underground workings executed in salt massif during operations, and the idea that underground voids created will have another destination after the exploitation of salt deposits. Particularly, the results of observations and in situ measurements performed in underground are presented, the correlation between the parameters that influence the stability of underground works, critical depth from which one can define the vertical behavior of the rock deformation, that is, limits the separation zone from the elastic behavior of the plastic behavior. A mathematical model was developed, which is based on the concept of entropy, a model that can analyze the stability of the pillars of any shape.

Anbieter: Dodax
Stand: 23.01.2020
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Eine Zeitreise durch 10.000 Jahre Bergbau in de...
10,20 € *
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Mining in the Eastern and Southern Alps commenced early in the prehistoric past. Particularly the use of the rich mineral raw materials and geo-ressources such as hunting grounds and pastures stimulated or even caused human occupation of Alpine landscapes. However, the presently dominant understanding of the Alps as a recreation park and a traffic block increasingly supersedes the notion of the ancient coherence of the cultural landscape. In the past, periods of an increased interest in the Alpine region [e.g. in copper, salt or iron] and phases of marginalisation [e.g. in the major contexts of the Imperium Romanum or the present] took turns creating a permanent “uphill” and “downhill” as indicated by the exhibition title. This short guide provides for these and other aspects in its nine chapters dealing with the Alps as a physical space and cultural area, with geology and mining, copper, salt, the Romans in the Alps, the Medieval struggle for droits de régale, mining as a public task in Early Modern times, and the question of what remains and will remain of all this in the present and future. The volume is printed in colour throughout and ends with registers of authors and lenders.

Anbieter: Dodax AT
Stand: 23.01.2020
Zum Angebot