27.12.2021

The price and use of silicon slag
As one of the metallurgical materials purchased in large quantities by

manufacturers, silicon slag has an

irreplaceable advantage. The price of silicon slag is relatively low compared with

other ferroalloy products, but it has a wide range of uses. Silicon slag is the

residue left after the refining of silicon ore, which also contains a lot of silicon

content.The use of silicon slag is also more extensive.
The use of silicon slag is mainly can be used as deoxidizer and refining the

industrial silicon in the silicon slag.Silicon slag is a "star" in the

field of deoxidizing. As a deoxidizing agent, it can reduce costs and increase

profits. Because of its low price and silicon content, steelmakers prefer silicon

slag products when purchasing ferroalloy raw materials for steelmaking.Silicon slag

also performs well in desulfurization, mainly because silicon slag contains a large

number of basic oxides, which can react with sulfur dioxide to produce sulfate, and

its slurry can be used for flue gas desulfurization.So silicon slag with low price,

high efficiency by the majority of customers.
The silicon slag products of Henan Star Metallurgical Materials Group are

complete in type: Si30%, 45%, 50%, 55%, 60%, 65%.Granularity level uniform 0-3mm, 0-

12mm, 10-100mm or customized granularity can be, my company in addition to silicon

slag specializing in the production of ferrosilicone, fermanganese, inoculation

agent, silicon carbide and other metallurgical resistant materials, with a complete

and scientific quality management system, variety of specifications, good service

quality is excellent, look forward to working with you.
Silicon briquette is pressed with silicon slag powder, Silicon slag is the

floating slag during the process of silicon metal smelting. It is a kind of good

deoxidizer and widely used for steelmaking. With the low price and good performance,

it is used to replace Ferro silicon by the steel plant. Steel casting industry

insiders know that some after refining silicon slag is lft over from the original

silion ore, but also contains a lot of silicon, silicon slag as one of production

enterprises large number of procurement of metallurgical materials, has an

irreplaceable advantage, because the purpose of the silicon is different, there are

many different kinds of silicon slag and slag can be roughly divided into industrial

silicon, solar silicon slag, semiconductor silicon slag.
The recovery of silicon from the waste industrial silicon slag is urgent for the

cleaner production of silicon industry. The feasibility and optimization of

recovering and purifying the metallic silicon from silicon slag are investigated by a

united technology of combining electromagnetic separation and slag treatment. The

physicochemical purification mechanism of silicon from slag was put forward. A

calcium silicate slag reagent containing chlorine was added to the raw materials,

which displays greatly role on separation and purification of metallic silicon. The

optimized experimental conditions of melting time 60?min and heating power 15?kW were

obtained.
What is the High Carbon Silicon ?
High Carbon Silicon , another name is H C Silicon . It is the by-product of

Silicon metal , and main element are Si and C , balance are S , P, SiO2.
How to produce High Carbon Silicon ?
In the process of producing Silicon metal, temperature is not enough to

adequately smelting the raw material of Silicon metal in the bottom .After a long

time of accumulation , there will be the by- product High carbon silicon .
Advantage
Improve the quality of molten steel, improve product quality and improve

product capacity.
Reduce the amount of alloy added, reduce steelmaking costs, and increase economic

benefits.
Price is very low , meanwhile quality is very stable .
High Carbon Silicon
High carbon silicon, also

known as high carbon ferrosilicon,high carbon metal silicon or silicon carbon alloy.

This product is a by-product of the production of metal silicon.
The main components are silicon and carbon. Generally required between silicon

40-70%. The carbon content is between 10-25%. Other ingredients are: silica,

phosphorus, sulfur and so on. It can replace ferrosilicon, silicon carbide,

carbonizer. And Reduce the amount of deoxidizer. It can be used in converter smelting

deoxidation alloy process.
High carbon silicon production process
In the process of smelting metal silicon, there is a case where the electrodes

are not uniformly heated in the furnace. As a result, the furnace bottom fails to

reach the optimum temperature required to produce metal silicon. A small amount of

raw materials such as silica and carbon at the bottom did not fully react. After a

long period of accumulation under high temperature conditions, it forms a block on

the bottom of the furnace.
These large (stable traits) chunks are broken and screened, which is what we

often call high carbon silicon.
A metal made from the second-most abundant element on Earth has become scarce,

threatening everything from car parts to computer chips and throwing up another

hurdle for the world economy.
The shortage in silicon metal,

sparked by a production cut in China, has sent prices up 300% in less than two

months. It’s the latest in a litany of disruptions, from snarled supply chains to a

power crunch, that are creating a destructive mix for companies and consumers.
The silicon issue also captures how the global energy crisis is cascading through

economies in multiple ways. The slashing of output in China, far and away the world’

s biggest silicon producer, is the result of

efforts to reduce power consumption.
For many industries, it’s impossible to avoid the fallout.
Silicon, which makes up 28% of the earth’s crust by weight, is one of mankind’s

most diverse building blocks. It’s used in everything from computer chips and

concrete, to glass and car parts. It can be purified into the ultra-conductive

material that helps convert sunlight into electricity in solar panels. And it’s the

raw material for silicone -- a water- and heat-resistant compound used widely in

medical implants, caulk, deodorants, oven mitts and more.
Si-C alloy is a new type of alloy, generally called silicon carbon alloy, or high

carbon silicon.,or high carbon ferro silicon. Specifications include high carbon

silicon lump (10-50mm), high carbon silicon granule (1-3mm, 3-8mm), high carbon

silicon powder (0-3mm, 0-5mm, 0-8mm), high carbon silicon briquette ( 10-50mm).
High carbon silicon 6818 contains: si:68% c:18%
Application：[url=http://www.kxgalloy.com/high-carbon-silicon/high-carbon-

silicon-6818/]High carbon silicon 6818[/url] can be used for all kinds of ordinary

steels to deoxidize, increase silicon, increase carbon during casting, and quickly

deoxidize, with early slag formation, dense reducing atmosphere, and effectively

improve the element recovery rate, so that the quality of molten steel is stable.
High carbon silicon 6818 can replace ferrosilicon, silicon carbide, recarburizer,

reduce the amount of deoxidizer, used in converter smelting deoxidation alloying

process, the effect is stable, steel chemical composition, mechanical properties and

internal control quality are better than traditional processes.
Characteristic：High carbon silicon 6818 improve the quality of molten steel,

improve product quality, improve product capabilities, reduce the amount of alloy

added, reduce steelmaking costs, and increase economic benefits.
High carbon silicon 6515 can be used for all kinds of ordinary steels to

deoxidize, increase silicon, increase carbon during casting, and quickly deoxidize,

with early slag formation, dense reducing atmosphere, and effectively improve the

element recovery rate, so that the quality of molten steel is stable.
High

carbon silicon 6515 can replace ferrosilicon, silicon carbide, recarburizer,

reduce the amount of deoxidizer, used in converter smelting deoxidation alloying

process, the effect is stable, steel chemical composition, mechanical properties and

internal control quality are better than traditional processes. High carbon silicon

6515 improve the quality of molten steel, improve product quality, improve product

capabilities, reduce the amount of alloy added, reduce steelmaking costs, and

increase economic benefits.
The traditional silicon-manganese alloy, the market price has climbed all the

way. This makes the cost of converter steelmaking gradually increase. Reduce the

profitability of steel. And the recovery rate of traditional alloys is often affected

by the operation of the converter. The amount of steel produced, the amount of slag,

etc., make the alloy composition in the finished product fluctuate greatly. The

chemical composition of the smelting steel is unstable. The qualified rate of

finished product internal control indicators is low.
Si65-C15 alloy is a new type of alloy, generally called silicon carbon alloy, or

high carbon silicon.,or high carbon ferro silicon.
First of all,it can replace the expensive deoxidizer ferro silicon. It is

suitable for deoxidation during the smelting of general steel, alloy steel and

special steel.

keine Angabe