Mill Scale Use

Letter 14057

Mill Scale Use

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My company uses iron ore (magnetite) in its process. However, a large amount of mill scale has become available and we are looking at it as a substitute or supplement. What is the basic composition of mill scale and the difference between it and magnetite and black iron oxide? Can mill scale be used in place of magnetite or black iron oxide?

Fred S
- Charlotte, North Carolina

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Maybe. But with zilch info on what sort of process, there's no way anybody can answer. None of us is a mind reader :-)

Bill Reynolds
consultant metallurgist
Ballarat, Victoria, Australia

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Please answer me these question !! I need help !!

Arash M
- Iran

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As Mr. Reynolds noted, we need some details to hazard a guess, Arash :-)

You are asking us if you can substitute a bean bag for a rolling pin without telling us what you intend to do with the rolling pin :-)

Mill scale is the hardened, oxidized, surface that develops on steel as it is hot processed. It contains iron and oxidized iron and probably undefined contaminants like oils and carbonates. Putting this stuff into a "process" that is not described might work excellently, or it could work poorly, or it could completely fail to work, or it could explode and kill people -- all depending on what the "process" is. Let us know. Thanks.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

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Would it be possible to use iron mill scale with 98% content of Fe₂O₃ as raw material for making magnets.

Edward Gantz
- Birmingham, England

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I would like to know more about the uses for mill scale. Also if the product is useful in industry what is the price tag on mill scale?

Chris Scheepers
trader - Richards Bay, South Africa

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Well I used to use about about 1,000 tons per year. It was used in a ferro-cement mix and poured into a polyethylene shell. These were sold as wheel weights for lawn and garden tractor wheels for extra weight for traction. Weights were 20-75 lbs.

Paul Rybak
- Topton, North Carolina

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We are exploring the use of mill scale (small percentage) in our Pellet Plant coming up in India. We are beneficiating Iron Ore fines bearing Fe 56% to 300-325 mesh and then using a series of hydro-cyclones to bring the Fe up to 64%. I would like to explore the use of mill scale in crushed form (325 mesh/44 microns) for: 1. upgrading by green ball Fe content & 2. increase the quality of finished pellets in terms of reduction.

Any suggestions / opinions / advice is solicited.

Prashant Sharma
- Kolkata, WB, India

March 3, 2008

Our factory mixes a little per cent of mill scale into iron ore fines before they are sintered so that we could get a higher grade of FE content.

Charles Yu
- Qingdao, Shandong, China

April 15, 2009

Hi Everybody,

I would like to know what are industries that uses iron mill scale as raw materials? What are the industrial uses of Iron Mill Scale? Can any of you help me?

Vijay Mahindhran
exporter - Coimbatore, India

October 16, 2009

Hi to all of the readers
I just wanted to have a solution about mill scale that how can i remove SiO2 from mill scale.
Thanks

Rashid hussain
exporter - Karachi,Pakistan

October 29, 2009

what are the technologies available in the world for recycling of iron oxide which is obtained from steel billets?

shaluka shyamali
student - Sri Lanka

October 29, 2009

Hi, Shaluka. Please put your question into context for us. What is your situation?

For example, we do not want to be a homework hotline where people just post their homework assignments and then go out and party while someone writes their essay for them :-)

So what's up?

Regards,

Ted Mooney
finishing.com
Brick, New Jersey

November 10, 2009

dear sir,
please tell me about iron oxide scale and how to leach it in acidic solution or use it in another application.
My company is a beam and rod rolling mill ,
thanks a lot.
hassan don

hassan.don
- ahwaz, khuzestan, Iran

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