Genesis and mining potential of kaolin deposits in Patagonia (Argentina)

Domı́nguez, Eduardo; Dondi, Michele; Etcheverry, Ricardo Oscar; Récio, Clemente; Iglesias, Claudio

doi:10.1016/j.clay.2015.12.031

Cited by 12 publications

(8 citation statements)

References 12 publications

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“…This is because at these temperatures, kaolinite, a typical mineral present in the clayey masses of the region, begins the transformation into primary mullite, a mineral with better mechanical parameters 50,51 . These temperature ranges, in addition to being higher and consuming more energy, are far above the burning temperatures practiced by companies in the region 39,52 . Through the results, it is possible to justify the choice of clay 3, used in ceramic mass 4 since the masses with lower water absorptions, excluding the mixed mass, regardless of the burnt temperature, were obtained by ceramic mass 3.…”

Section: Resultsmentioning

confidence: 98%

“…The other problem presented by the clays under analysis was the low content of fluxing oxides (K 2 O and Na 2 O), which total less than 1.50%. This can cause problems in the sintering of the material due to the absence of liquid phase formation 11,39 . Because of this, it is interesting to use materials such as sand and ORW, since the two materials have low loss to fire, and in the case of ORW high levels of fluxing oxides (above 8%).…”

Section: Resultsmentioning

confidence: 99%

“…50,51 These temperature ranges, in addition to being higher and consuming more energy, are far above the burning temperatures practiced by companies in the region. 39,52 Through the results, it is possible to justify the choice of clay 3, used in ceramic mass 4 since the masses with lower water absorptions, excluding the mixed mass, regardless of the burnt temperature, were obtained by ceramic mass 3. These obtained patterns are attributed to the packaging, as discussed by the results of Figure 5.…”

Section: Raw Materialsmentioning

confidence: 99%

“…This can cause problems in the sintering of the material due to the absence of liquid phase formation. 11,39 Because of this, it is interesting to use materials such as sand and ORW, since the two materials have low loss to fire, and in the case of ORW high levels of fluxing oxides (above 8%).…”

Section: Materials Characterizationmentioning

confidence: 99%

See 3 more Smart Citations

Economy analysis of the implementation of extruded tiles fabrication in a ceramic industry containing ornamental rock waste

Azevedo¹,

Marvila²,

Delaqua³

et al. 2021

Int J Applied Ceramic Tech

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As a result of the economic crisis faced in Brazil, industries in the red ceramic sector have economic problems. The objective of this work was to evaluate, technologically and economically, through analysis of economy, the implementation of the production of ceramic tiles, a material with higher added value than bricks and ceramic blocks, in a ceramic industry located in the state of Rio de Janeiro, Brazil. The ceramic tiles were produced containing the incorporation of ornamental rock waste (ORW). The state has a region that has a red ceramic pole, but produces only products with lower added value. For this, specimens were produced with four different ceramic masses burned at temperatures in the range of 800 to 1050°C. Three masses were produced with different clays from the region (ceramic mass 1, 2 and 3) and a ceramic mass 4 was evaluated containing the clay that presented the best results and with the inclusion of sand and ORW, aiming at the analysis of economy. It was found that the masses containing only clays showed satisfactory parameters of resistance, but showed deficiencies in water absorption. The fourth mass, however, presented acceptable values in all the evaluated properties and was chosen to carry out a full‐scale industrial test, which enabled the development of economic analysis and an economic analysis using the theory of real options. The results obtained in this last stage were also positive, providing an internal rate of return of 16.82%, above the minimum practiced rate of 15%, proving the efficiency of the economy applied to the manufacture of extruded tiles in the industries of the study region.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Raw Materialsmentioning

confidence: 99%

Section: Materials Characterizationmentioning

confidence: 99%

See 2 more Smart Citations

Economy analysis of the implementation of extruded tiles fabrication in a ceramic industry containing ornamental rock waste

Azevedo¹,

Marvila²,

Delaqua³

et al. 2021

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…Novel studies on the assessment of industrial clays give improved testing procedures and analytical techniques [21] as well as new perspectives of exploration and utilisation [16][17][18]22,72]. Geology, mineralogy, and origin of industrial clays present data on recently explored mineral deposits [73,74]. Current fundamental and applied investigation of clay minerals in China was summarized by [23] and for Central Europe by [24].…”

Section: Mineralmentioning

confidence: 99%

Towards Better Valorisation of Industrial Minerals and Rocks in Serbia—Case Study of Industrial Clays

2021

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The improvement in valorisation of industrial minerals and rocks in Serbia is related to improvement of legislation, and to adoption of best possible techniques for geological exploration and estimation of resources/reserves. Therefore, we analyzed the actual practice in the field of geological exploration which has not changed significantly in the last 30 years, as well as legislation related to the mining industry and access to land. The improvement of legislation mostly depends on the state authorities. Contrary to that, the enhancement of geological exploration methodology should be the issue of experts working in that area of the mining industry but is also very much related to the existing legislation. Serbia still has very strictly prescribed procedures, which are generally good; however, it is an overly complicated and restrictive system for performing geological exploration and evaluation of mineral deposits. The most important improvements in legislation in the last twenty years are presented and discussed, as well as problems that still need to be solved and solutions found to fully understand the potential of industrial minerals and rocks in Serbia.

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Recycling potential of powdered cigarette waste in the development of ceramic materials

Girondi¹,

Marvila²,

Azevedo

et al. 2020

J Mater Cycles Waste Manag

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Genesis and mining potential of kaolin deposits in Patagonia (Argentina)

Cited by 12 publications

References 12 publications

Economy analysis of the implementation of extruded tiles fabrication in a ceramic industry containing ornamental rock waste

Economy analysis of the implementation of extruded tiles fabrication in a ceramic industry containing ornamental rock waste

Towards Better Valorisation of Industrial Minerals and Rocks in Serbia—Case Study of Industrial Clays

Recycling potential of powdered cigarette waste in the development of ceramic materials

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