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Diatomite
Diatomite has been used as a filter aid for nearly a century. The ore is a soft, friable siliceous mineral. It is composed of the skeletons of microscopic plants deposited on the bottoms of oceans and lakes after and during the Miocene Age, from 100'000 to 15'000'000 years ago. Under the microscope the particles of diatomite show up in a variety of forms: symmetrical figures resembling disks, rods, cylinders and snowflakes. It is this shape factor combined with the rigidity of the particles that makes diatomite such an excellent raw material for the production of superior filter aids.
Diatomaceous earth is an amorphous form of silica containing a small amount of microcrystalline material. Filter aids are processed at above 800 ¡ãC (1500 ¡ãF). Both calcined and flux-calcined diatomite filter aids are free of organic matter and are non-adsorptive.
Best ? diatomite filter aids offer outstanding performance from the finest to the coarsest grades. These materials meet all requirements for good filter aids. This enables them to meet the exacting clarity and flow-rate demands of industrial filtration. Even more important, the user can depend on consistency and uniformity load after load.
THE
Characteristics of the diatomite and Diatomite Producrs
Diatomite is a kind of univellular apuatic plant.lt absorbs the
aliment of the water and forms the porous silicared ossature .The
corpse of thediatomite precipitates in the water for many years,and
becomes the mineral deposig under cerrain geological conditions.
Diatomite belonge to the amorphous silicon,lt has the charactweistics
of porosity,high pore volume,large specific surface arda,low buld
density,and strong absorbability.lt is lenperature-tolerant,heat-proof.and
has the relativelt compressibility and chemical stability,thus it
is a rare mulrifunctyonal material.lt is suitable for manufacturing
filter aid,absorpjyve support,filler and heat-proof coating and so
on after different processing and alteration.
The sanitarylndexo the diatomiteproducts of food industry
Project |
Type |
Furnacing material |
Flux furnacing material |
AX-100# |
AX-700# |
AX-800# |
AX900-1000# |
AX-3000# |
Physical |
Pallide-flavens-pink |
|
White |
Power,silicon framework with special sperture structure |
Pervious rate(Darcy) |
0.08-0.36 |
2.2-2.9 |
2.9-4.9 |
5.0-10 |
10-30 |
Water-soluble material(%) |
0.02 |
0.05 |
0.07 |
Acid-soluble material% |
2.0 |
3.0 |
PH(10%water starch) |
6.5-8 |
7.0-10.0 |
Lgnition loss% |
1.0 |
Mositure% |
2.0 |
Substatia density(g/ml) |
2.1-2.3 |
Humid density(g/ml) |
0.32-0.42 |
0.36-0.42 |
0.38-0.43 |
0.38-0.44 |
0.38-0.45 |
Sio2% ¡Ý |
87.6 |
Al2o3% ¡Ü |
2.5 |
Fe2o3% ¡Ü |
1.5 |
Others% ¡Ü |
3.0 |
Products Application Area
Food Industrial Products
¡¡¡¡AX-100# AX-700# AX-800# AX-900# AX-1000# AX-3000#
Main Application Area:
¡¡¡¡Beverage and Condiment
¡¡¡¡Beer,ratafee,alcohol,juice,beverage,purified water,yellow wine,vinegar,Soy,etc.
Medication and Sugar Manufacturing
¡¡ ¡¡Blood plasma,purification of Chie\nese traditional nedicine,bacteriophage, Vitamin,levansucrase,fructose,dextrose,granulose,
saccharose,etc
Petrochemicals
¡¡ ¡¡TL-100# ¡¢ TL-600# ¡¢ AX-700# ¡¢ AX-800#¡¢AX-900#¡¢AX-1000#¡¢AX-3000#
Main Applocation Area:
¡¡ ¡¡Lube addictuve,oil,oil paint,irganic acid,inorganic acid,uric albumen,dirposal Of sullage,etc.
Filler producats:
¡¡¡¡ TL-1# £¬ WX-2# £¬ WX-3# £¬ WX-4#
Main Application Area:
¡¡¡¡Pesticide,fertilizer,activator carrier,acentric cast dope,moulage,sheet,csmetic,rubber accelerator,dtc.
To the low the application that water supply handles
¡¡¡¡TL-600#
The Sanitarylndex of the chemied products and other industrial products
Project |
Type |
Flux filter |
Flux coating |
Furnacing filter |
Furnacing coating |
TL-600# |
AX-700-3000# |
WX-3# |
WX-4# |
TL-100# |
TL-1# |
WX-2# |
Physical
apperance |
White |
White |
White |
Lividity
white |
Pallide-flavens-pink |
Grey
white |
Pallide-flavens-pink |
Powder,silicon framework with special sperture structure |
¡¡ |
Pervious rate(Darcy) |
1.2-2.2 |
2.2-above30.0 |
¡¡ |
¡¡ |
0.1-0.38 |
¡¡ |
Moisture% |
0.8 |
1.0 |
PH(10%Water starch) |
7-10 |
7-10 |
7-10 |
6.5-8.0 |
Lgnition lossg/ml |
1.0 |
Humid densityg/ml |
0,38-0.42 |
0.38-0.42 |
0.38-0.42 |
0.39-0.43 |
0.32-0.42 |
0.4-0.5 |
0.32-0.42 |
Substatia densityg/ml |
2.1-2.3 |
Average diameter of particle(um) |
10-25 |
10-50 |
5-15 |
3-13 |
8-15 |
10-30 |
3-13 |
Sio2% ¡Ý |
87.6 |
90.2 |
87.6 |
80 |
90.2 |
Fe2o3% ¡Ü |
1.5 |
2.5 |
1.5 |
Al2o3% ¡Ü |
2.5 |
4.8 |
2.5 |
Lead(calculated by pb)PPM ¡Ü |
¡¡ |
0.40 |
¡¡ |
0.40 |
Arsenic(calculated by As)PPM ¡Ü |
¡¡ |
0.50 |
¡¡ |
0.50 |
Others% ¡Ü |
3.0 |
Typical Physical Properties
Grade |
Color |
Product Type |
Permeability Darcys |
Median Pore Size Microns |
Dry
(lbs/ft3) |
Wet
(lb/ft3) |
150
Mesh% Retained |
325
Mesh% Retained |
%Molsture |
AX-60# |
Pink/ Buff |
Calcined |
0.08 |
2.5 |
8.5 |
17.0 |
1.0 |
N/A |
0.1 |
AX-80# |
Pink/ Buff |
Calcined |
0.16 |
2.5 |
9.0 |
18.5 |
1.5 |
N/A |
0.1 |
AX-100# |
Pink/ Buff |
Calcined |
0.25 |
3.5 |
9.0 |
18.5 |
4.0 |
N/A |
0.1 |
AX-150# |
Pink white |
Flux
calcined |
1.9 |
10 |
12 |
19.5 |
9.0 |
N/A |
0.1 |
AX-700# |
White |
Flux
calcined |
2.9 |
13 |
12 |
19.5 |
10.0 |
N/A |
0.1 |
AX-800# |
White |
Flux calcined |
4 |
17 |
12 |
20.0 |
12 |
N/A |
0.1 |
AX-1000# |
White |
Flux
calcined |
10-25 |
22 |
13 |
21.5 |
60 |
N/A |
0.1 |
WX-2# |
Pink/
Buff |
Calcined |
0.02 |
0.5 |
9.0 |
24 |
N/A |
0.5 |
0.1 |
WX-3# |
White |
Flux calcined |
1.1-1.3 |
7.0 |
10 |
19.5 |
N/A |
0.8 |
0.1 |
WX-4# |
White |
Flux calcined |
0.75 |
6 |
10 |
20 |
N/A |
0.5 |
1.0 |
Typical Particle Size Distribution
Cumulative Weight % Finer Than Micron Size
Grade |
1 ¦Ì |
1.5 ¦Ì |
2.0 ¦Ì |
3.0 ¦Ì |
4.0 ¦Ì |
6.0 ¦Ì |
8.0 ¦Ì |
12.0 ¦Ì |
16.0 ¦Ì |
24.0 ¦Ì |
32.0 ¦Ì |
46.0 ¦Ì |
64.0 ¦Ì |
90.0 ¦Ì |
128.0 ¦Ì |
186.0 ¦Ì |
AX-60# |
0 |
0 |
0 |
2 |
4 |
11 |
19 |
32 |
43 |
60 |
72 |
86 |
93 |
98 |
99 |
100 |
AX-80# |
0 |
0 |
0 |
1 |
3 |
10 |
17 |
29 |
40 |
57 |
70 |
86 |
92 |
97 |
99 |
100 |
AX-100# |
0 |
0 |
0 |
1 |
3 |
9 |
16 |
29 |
39 |
56 |
70 |
84 |
92 |
97 |
99 |
100 |
AX-150# |
0 |
0 |
0 |
0 |
1 |
3 |
6 |
13 |
21 |
39 |
53 |
72 |
84 |
94 |
98 |
99 |
AX-700# |
0 |
0 |
0 |
0 |
0 |
1 |
3 |
7 |
11 |
22 |
38 |
57 |
75 |
91 |
96 |
99 |
AX-800# |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
3 |
7 |
19 |
24 |
52 |
57 |
84 |
93 |
98 |
AX-900# |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
2 |
6 |
18 |
22 |
50 |
55 |
83 |
90 |
96 |
AX-1000# |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
2 |
5 |
10 |
17 |
28 |
50 |
72 |
93 |
WX-2# |
2 |
5 |
8 |
16 |
25 |
40 |
55 |
72 |
83 |
98 |
100 |
|
|
|
|
|
WX-3# |
1 |
2 |
3 |
10 |
25 |
40 |
55 |
72 |
80 |
93 |
97 |
99 |
100 |
|
|
|
WX-4# |
2 |
5 |
8 |
16 |
25 |
40 |
55 |
72 |
85 |
98 |
100 |
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