João Rezende

FactSage online self-learning videos

Prof. In-Ho Jung from Seoul National University, our colleague and FactSage co-developer, gave a FactSage Workshop during the conference MOLTEN 2021. This workshop included self-learning videos which are freely available online via his website:  MOLTEN2021-FactSageWorkshop-HTTL The following topics were covered in the workshop: Thermodynamic Database Development Ferrous Pyrometallurgy Alloy Design Macro Processing It is an …

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From molar Gibbs energy functions to phase diagrams – Part II

In this blog post we will see how to interpret the phase activity of a phase which does not form in equilibrium for a given temperature and pressure. For this, we will consider an Al-Cu alloy containing 0.01 mol% Cu at a temperature of 500°C and at a pressure of 1 atm and we will …

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A Simusage Process Model for the Iron Blast Furnace

Harvey and Gheribi[1] developed a thermochemistry-based model for the iron blast furnace. In their work, the corresponding process model was developed with a flowsheeting approach based on the connected local equilibrium reactors method, which was implemented using SimuSage, one of the very successful members the GTT’s product family. The model was constructed based on the …

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How do I find out if (and where) a certain substance is included in a thermochemical database?

Sometime ago a customer asked me how to find out if Ca2SiO4 is included in a certain database. Since the answer to this question can be really useful for customers in general, I decided to write this blog on the subject. We will define a substance with a defined chemical composition as a chemical species. …

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GTT Users’ Meeting 2020 will be a Webinar

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GTT-Technologies yearly invites users of its software family to join the GTT Users’ Meeting. Because of the CoViD-19 Pandemia, the usual face-to-face meeting will exceptionally not take place this year. Feedback from our customers made clear to us that there is a strong interest in alternative formats of the GTT Users’ Meeting. Therefore, we are …

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Hume-Rothery prize awarded to Klaus Hack

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We at GTT are very happy that Klaus Hack was awarded the Hume-Rothery Prize 2020. This prize is awarded every year by the Institute of Materials, Minerals and Mining of the United Kingdom in recognition of distinguished achievements concerned with phase relationships in metallic materials or non-metallic materials of metallurgical interest. Please check https://www.iom3.org/iom3-awards. Congratulations …

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FactSage in distance learning and home-office use

To enable academic institutions who rely on the use of FactSage in classroom instruction to students during the coming months, GTT would like to help you make the transition to “distance learning” education easier. If you normally use a FactSage server/client installation at your institute to organize your course that includes hands-on training with FactSage, …

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Minimization of copper losses to the converter slag through a boron oxide addition

The loss of copper in the converting process through its incorporation to the converter slag represents a major problem in the copper metallurgy. There are two important mechanisms for this phenomenon: the physicochemical and the mechanical one. The mechanical mechanism, i.e. the mechanical entrapment of matte or of metallic copper inside the slag, is by …

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