Arman Seyyedi

6 Questions 6 Answers 0 Followers

Questions related from Arman Seyyedi

What are the technical obstacles for melting low grade (BF quality pellet) DRI in a submerged arc furnace (selfbaking elec.) for pig iron production?

The high quality iron concentrate (Fet>66%) is being less available year by year and also blast furnace steel making is not compatible with Greenhouse emission regulations. What are the...

16 July 2024 1,760 1 View

Commercial process on reduction of cold bonded coal-iron ore composite pellet?

There are several papers on successful "reduction of cold bonded non coking coal-iron ore composite pellet" in laboratory and pilot scale. The successful tests have been done in different setups...

29 August 2021 4,060 0 View

Does industrial scale Hydrometallurgical purification of Silicon exist?

There are several papers describing different hydro-metallurgical purification routes of Metallurgical Si to Solar Si through alloying, doping, nano sized grinding,... and finally leaching in...

29 March 2020 2,461 3 View

How to fine grind material in a narrow band particle size distribution?

Does anybody have ideas to mill Silica powder to micron size particles to a narrow particle size distribution (PSD)? For example grinding with planetary ball mill makes a wide PSD which is not...

20 December 2019 5,677 2 View

Does anybody have ideas about microwave digestion of Silicon powder? is there any protocol?

Silicon does not digest easily...

10 August 2019 2,947 1 View

Any ideas for leaching iron ore to remove silica?

Iron ore is finely interlocked with silica, I m looking for suitable leaching solution to remove silica. The major phases are Hematite, Iron Oxide Hydroxide, Silicon oxide, Pyrolusite and minor...

30 April 2019 4,210 5 View