Address: F34, South Tower, Greenland Central Plaza, Zhengzhou, Henan Province, China
Tel:+86-371-88888998
Fax:+86-371-88886886
E-mai:sales8@chinaelong.com

Your present location:Home >> Refractory for Industrial Furnaces >> Chromite Sand
  • Name: Chromite Sand
  • Products Id: a88
  • Advantage: It has anti-melting, high temperature resistance, high chrome oxide content, reduce the wear and tea
  • Delivery Time:
  • Products Used:

Changxing refractory’s chromite sand is a naturally occuring spinel consisting primarily of the oxides of chrome and iron, which is processed by crushing and sieving. The main chemical composition of chromite sand is Cr2O3, with heat volume stability, high heat conductivity. When chromite sand contact with molten metal, it doesn't react with iron oxide and other chemical reactions. Chromite Sand not only has the characteristics of solid phase sintering but also can well prevent infiltration of molten metal.

Physical and chemical indexes

Cr2O3

SiO2

CaO

FeO

MgO

Al2O3

Cr/Fe

45.0%(MIN)

1.0%(MAX)

0.15%(MAX)

27%

10.61%

13.96%

1.59:1

1.    The indexes of chromite sand (rich ore/concentrate) used for casting ferrochrome.

Grade

Cr2O3(%)

Cr2O3/FeO

P(%)

S(%)

SiO2(%)

Size(mm)

Application

≥50

>3

--

--

<1.2

 

Nitrogen-bearing ferrochromium

≥45

≥2.5-3

<0.03

<0.05

<6

 

Medium/Low/Mirco Carbon Ferro Chrome

≥40

≥2.5

<0.07

<0.05

<6

40-75mm

Electric furnace carbon ferrochrome

≥32

≥2.5

<0.07

<0.05

<6

40-50mm

Blast furnace carbon ferrochrome

 

2.    In refractory material industry, chromite sand is usually used for producing 

magenesite-chrome brick, chrome brick, chrome alumina brick, etc.

Grade

Cr2O3(%)

SiO2(%)

CaO(%)

Size(mm)

Application

≥35

≤8

≤2

50-300mm

Natural refractory material

≥30-32

≤11

≤3

50-300mm

Producing chrome brick, magnesite-chrome brick

 

3.    In chemical industry, chromite sand is mainly used for producing dichromate

(chromium salt), and then use chromate to produce other products.

Cr2O3(%)

Cr2O3/FeO

SiO2(%)

Size(mm)

Application

≥30

≥2.5-2.5

Little

----

Producing dichromate (chromium salt)

 

4.    Cast stone grade chromite sand requirement: Producing diabase cast stone, Cr2O3:10%-20%, SiO2

Message
 
Content:
* Entered characters:0 Word
Less than or equal500Character
Your e-mail:
 
Example: example@mail.com
Telephone:
 
Less than or equal to 32 characters (including 0-9, -, (,), comma)
Address:
 
Verification code: