Ceramic Grain Filter

• Category :

  Catalyst and Auxiliary/Other Auxiliary Agent

• CAS NO :

• EC NO :

• Molecular Formula :

• Molecular Weight :

• Main Specifications :

  Ceramic grain filters are made of refined pottery clays added with certain modifiers, and processed of grinding, mixing, shaping and high temperature sintering.

• Packing :

  customer's request

• Product description :

  Ceramic Grain Filters

  1.? Product Description

  ???? Ceramic grain filters are made of refined pottery clays added with certain modifiers, and processed of grinding, mixing, shaping and high temperature sintering. They do not contain any substances that harmful to people or environment. They are hard and rough in surface, porous inside the structure, and have the advantages of high mechanical strength, large specific surface area and porosity. When used in water treatment, they behave a activated surface property, a great amount of pollutant entrapment, less water head loss in the filter bed, lower consumption of back-flush water, stable in chemical and biologic property, and long service life. Ceramic grain filters is a new and efficient filter material to increase the water yield, upgrade the water quality and save chemicals and energy.??

  2. ?Chemical Composition of Ceramic Sand Filters

  ?Composition	?Content %??
  SiO2	50-70％
  Al2O3	15-25％
  Fe2O3	0.5-10％
  CaO	1-5％
  MgO	1-5％
  KO2+NaO	3-8％
  ?The balance	≤ 2

  3.Technical Indexes of Ceramic Grain Filters

  ?Item	?Index
  Appearance	Rough ball, porous, red & brown
  Grain diameter，mm	0.5-30
  ?Apparent Density,g/cm3	1.2-1.6
  ?Bulk density,g/cm3	0.6-1.2
  ?Total porosity,%	60-80
  ?Specific surface area,cm2/g	5000-10000
  ?Attrition & crushing rate,%	≤2
  ?Even coefficient	K80=1.2-1.5
  ?Even coefficient	K80=1.0-1.3
  ?Solubility in acid,%	≤2
  ?Solubility in alkali,%	≤1.5
  ?Soluble substance	No any harmful elements contained

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• Uses :

  water treatment,coal filter