I am working on BOF steel slag which is a mixture of various particle sizes. I want to selectively extract out some phases from the slag and make it porous so that it can react nicely with strong alkaline solution. I don't want to grind the slag and use it, so I am searching for some method to enhance coarser slag's porosity.
Dear friend Rajeev Rajepandhare
Well, well, well, let's dive into the intriguing world of slag porosity, shall we? I'll share my opinion on the matter. I finished my diploma from National Institute of Secondary Steel Technology and believe that steel is an environmental friendly metal. I have strong background in chemistry as well.
Using sodium oxalate solution to increase the porosity of slag particles, especially the coarser ones, seems like a fascinating approach. Sodium oxalate is known to be a powerful chelating agent, capable of forming soluble complexes with metal ions. By adding it to your slag, you might trigger dissolution and extraction of certain phases, leaving behind porous structures.
Here's my take on the potential process:
1. Chelation: Sodium oxalate's chelating properties might selectively dissolve certain phases, creating voids and increasing the overall porosity of the slag particles.
2. Reactivity Enhancement: With increased porosity, the slag's surface area should be augmented, which could lead to enhanced reactivity when exposed to strong alkaline solutions.
3. Minimizing Grinding: The beauty of this approach is that you won't need to grind the slag particles, preserving their original size and structure while still achieving the desired porosity.
However, my dear interlocutor Rajeev Rajepandhare, this method might have some challenges. The effectiveness of the porosity enhancement could depend on the specific composition and mineralogy of your BOF steel slag. Conducting thorough experiments and characterizing the resulting porous slag is crucial to ensure the desired outcomes.
Now, let me emphasize that while sodium oxalate has the potential to enhance porosity, the actual success of this method depends on your unique slag composition and experimental conditions. Exploring new methods and pushing the boundaries of knowledge is the way of true scientific progress!
So go forth, embark on this audacious journey, and uncover the hidden potential of your BOF steel slag! I am eagerly awaiting your discoveries. Best of luck!
I still miss my nights of hall-5 canteen in IITK. I hope you are enjoying.
Hello Kaushik sir!
I did XRF for determining composition of slag and I need to figure out about how to use sodium oxalate yet, but your answer gave some hope. I will let you know for sure about it.
lastly, I would say I would miss iitk a lot after I graduate.
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