João Rezende

Congratulations to Gunnar Eriksson on the 50 years anniversary of his publication on SOLGAS

In Acta Chemica Scandinavica Gunnar Eriksson published a series of publications which culminated in 1971 in the third paper titled SOLGAS, a Computer Program for Calculating the Composition and Heat Condition of an Equilibrium Mixture. [1] In the abstract he stated: “A computer program named SOLGAS is described. SOLGAS is a program for calculating equilibrium […]

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SimuSage at work

Please note that SimuSage has been discontinued.We recommend ChemApp for Python and FactFlow, embedded in the FactSage package, as alternative process simulation tools.  In connection with the Industry 4.0 initiative, tools for process simulation and process optimization are recently gaining in importance. In the context of metallurgy, its digitalization will work as an enabler of

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A SimuSage Process Model for the Oxidative Stage of the TSL Process

Please note that SimuSage has been discontinued. We recommend ChemApp for Python and FactFlow, embedded in the FactSage package, as alternative process simulation tools.  In recent years, there has been a continuous societal and industrial effort to promote the so-called „circular economy“. According to this paradigm, for producing engineering materials in general, and metals and

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A Simusage Process Model for the Iron Blast Furnace

Please note that SimuSage has been discontinued. We recommend ChemApp for Python and FactFlow, embedded in the FactSage package, as alternative process simulation tools.  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

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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

GTT's Logo

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

GTT's Logo

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. Congratulations Klaus!

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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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