extractive industry - ορισμός. Τι είναι το extractive industry
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Τι (ποιος) είναι extractive industry - ορισμός

DISTILLATION IN THE PRESENCE OF A MISCIBLE, HIGH BOILING, RELATIVELY NON-VOLATILE SOLVENT, THAT FORMS NO AZEOTROPE WITH THE OTHER COMPONENTS IN THE MIXTURE
Extractive Distillation
  • [[Process flow diagram]] showing an extractive distillation apparatus. In this case the mixture components A and B are separated in the first column through the solvent E (recovered in the second column).

Extractivism         
  • Example of mass extraction of trees for lumber, resulting in deforestation
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  • Map of Yasuni National Park in Ecuador (green area)
  • Yanacocha Mine in Cajamarca, Peru
PROCESS OF EXTRACTING RESOURCES FROM THE EARTH
Extractive industry; Extractive industries; User:Carly MacArthur/sandbox; Extractivist; Extractivist forces; Extractivist economy
Extractivism is the process of extracting natural resources from the Earth to sell on the world market. It exists in an economy that depends primarily on the extraction or removal of natural resources that are considered valuable for exportation worldwide.
The Extractive Industries and Society         
SCIENTIFIC JOURNAL
Extr. Ind. Soc.; Extr Ind Soc; The Extractive Industries & Society
The Extractive Industries and Society is a quarterly peer-reviewed academic journal in the field of environmental studies, with a specific focus on the societal and environmental impacts of extractive industries such as the mining and oil and gas industries. It was established in 2014 and is published by Elsevier.
Cannabis industry         
CULTIVATORS, PRODUCERS, CONSUMERS AND ASSOCIATED SERVICES ASSOCIATED WITH CANNABIS
Draft:Cannabis industry; Cannabis company; Marijuana industry
The cannabis industry is composed of legal cultivators and producers, consumers, independent industrial standards bodies, ancillary products and services, regulators and researchers concerning cannabis and its industrial derivative, hemp. The cannabis industry has been inhibited by regulatory restrictions for most of recent history, but the legal market has emerged rapidly as more governments legalize medical and adult use.

Βικιπαίδεια

Extractive distillation

Extractive distillation is defined as distillation in the presence of a miscible, high-boiling, relatively non-volatile component, the solvent, that forms no azeotrope with the other components in the mixture. The method is used for mixtures having a low value of relative volatility, nearing unity. Such mixtures cannot be separated by simple distillation, because the volatility of the two components in the mixture is nearly the same, causing them to evaporate at nearly the same temperature at a similar rate, making normal distillation impractical.

The method of extractive distillation uses a separation solvent, which is generally non-volatile, has a high boiling point and is miscible with the mixture, but doesn't form an azeotropic mixture. The solvent interacts differently with the components of the mixture thereby causing their relative volatilities to change. This enables the new three-part mixture to be separated by normal distillation. The original component with the greatest volatility separates out as the top product. The bottom product consists of a mixture of the solvent and the other component, which can again be separated easily because the solvent does not form an azeotrope with it. The bottom product can be separated by any of the methods available.

It is important to select a suitable separation solvent for this type of distillation. The solvent must alter the relative volatility by a wide enough margin for a successful result. The quantity, cost and availability of the solvent should be considered. The solvent should be easily separable from the bottom product, and should not react chemically with the components or the mixture, or cause corrosion in the equipment. A classic example to be cited here is the separation of an azeotropic mixture of benzene and cyclohexane, where aniline is one suitable solvent.

Παραδείγματα από το σώμα κειμένου για extractive industry
1. "A set of guiding principles [for the extractive industry] isn‘t likely to have direct applicability in the IT sector," he said.
2. "It seems to us that the political priority is the modernization and diversification of the economy beyond the extractive industry," said Ron Smith, chief strategist at Alfa Bank.
3. North Hamgyong Province occupies an important position in ensuring the nation‘s economic development as it has lots of enterprises in the fields of metal industry and extractive industry and other pilot domains of the national economy, he said, calling on it to play a pioneer‘s role in the building of an economic power.