Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Test Method for Determining the Rate of Bioleaching of Iron From Pyrite by Thiobacillus Ferrooxidans (Includes all amendments And changes 8/16/2017).
Automaticky preložený názov:
Štandardná skúšobná metóda pre stanovenie miery Bioleaching železa z pyritu by Thiobacilus ferrooxidans
NORMA vydaná dňa 1.1.2001
Označenie normy: ASTM E1357-90(1996)e1
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.2001
Kód tovaru: NS-41475
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
bioleaching, iron, ore leaching, pyrite, soluble ion, Thiobacillus Ferrooxidans
Significance and Use | ||||||||
The development and refinement of processes for bioleaching of metal ores and coal desulfurization require intercomparison of bioleaching data both to better understand metal ore bioleaching mechanisms and to develop more effective strains. For uncertain reasons, different strains of T. ferrooxidans exhibit different pyrite leaching rates and different sources of pyrite vary widely in susceptibility to microbial attack. This test method has been developed to provide a standard procedure for evaluating the rate of bioleaching of iron from iron pyrite (FeS2), a commonly used growth substrate for T. ferrooxidans and an important mineral that is biologically degraded in commercial bioleaching operations and in many exposed coal deposits. A high leaching rate in this test is evidence for potential degradability of the mineral in mining operations. A low rate of bioleaching suggests that the mineral is inherently not a good substrate or that it contains toxicants toward thiobacilli, and might not be readily bioleaching in a mining operation. |
||||||||
1. Scope | ||||||||
1.1 This test method covers procedures for determining the rate of bioleaching of iron from pyrite (FeS2) by the bacterium Thiobacillus ferrooxidans . 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
||||||||
2. Referenced Documents | ||||||||
|
Chcete mať istotu, že používate len platné technické normy?
Ponúkame Vám riešenie, ktoré Vám zaistí mesačný prehľad o aktuálnosti noriem, ktoré používate.
Chcete vedieť viac informácií ? Pozrite sa na túto stránku.
Posledná aktualizácia: 2024-08-27 (Počet položiek: 2 344 895)
© Copyright 2024 NORMSERVIS s.r.o.