Description: technologyComment of molybdenum production (RER, RoW): A mix of 80% hydrometallurgical and 20% pyrometallurgical production of zinc is chosen to represent the molybdenum production
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Comment: This is a market activity. Each market represents the consumption mix of a product in a given geography, connecting suppliers with consumers of the same product in the same geographical area. Markets group the producers and also the imports of the product (if relevant) within the same geographical area. They also account for transport to the consumer and for the losses during that process, when relevant. This is the market for 'molybdenum', in the Global geography. In this market, expert judgement was used to develop product specific transport distance estimations. This market is supplied by the following activities with the given share: molybdenum production, RER: 0.0162162162161285 molybdenum production, RoW: 0.983783783783872 generalComment of molybdenum production (RoW): Molybdenum is used e.g. in catalytic converters. It is not used for alloying steel. For this, molybdenum trioxide or molybdenite is used. For a lack of specific data, the metallurgical process of the zinc production is used as a proxy. Only the input of the concentrate is adapted. Although zinc and molybdenum concentrate are both sulfidic and the metal content is almost the same, this is a crude assumption and the data quality therefore is poor. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.] generalComment of molybdenum production (RER): This dataset represents the production of 1 kg of molybdenum, in RER, in 2003. For this, molybdenum trioxide or molybdenite is used. For a lack of specific data, the metallurgical process of the zinc production is used as a proxy. Only the input of the concentrate is adapted. Although zinc and molybdenum concentrate are both sulfidic and the metal content is almost the same, this is a crude assumption and the data quality therefore is poor. The data set must only be used if the relevance of molybdenum is low in a LCA study. If the focus of such a study would lie on molybdenum, the process would need to be further investigated. [This dataset was already contained in the ecoinvent database version 2. It was not individually updated during the transfer to ecoinvent version 3. Life Cycle Impact Assessment results may still have changed, as they are affected by changes in the supply chain, i.e. in other datasets. This dataset was generated following the ecoinvent quality guidelines for version 2. It may have been subject to central changes described in the ecoinvent version 3 change report (http://www.ecoinvent.org/database/ecoinvent-version-3/reports-of-changes/), and the results of the central updates were reviewed extensively. The changes added e.g. consistent water flows and other information throughout the database. The documentation of this dataset can be found in the ecoinvent reports of version 2, which are still available via the ecoinvent website. The change report linked above covers all central changes that were made during the conversion process.]
Tags: Molybdän ? Manufacture of basic metals ? Manufacture of basic precious and other non-ferrous metals ? Manufacturing ?
License: Unbekannt
Language: Deutsch
Last harvest: 12.05.2026 01:06
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