Production process Introduction
Source factory, high quality, and low price.
Calcined Diatomite Filter Aid is a high-porosity filter aid material formed by high-temperature calcination, used for liquid clarification and filtration in food, beverage, and chemical industries.
Advantages
High Clarity: The large specific surface area adsorbs fine impurities; the tertiary porous structure traps particles, improving the transparency of the finished product.
Good Chemical Stability: High SiO₂ content and stable structure prevent reaction with acidic media, making it suitable for food and chemical production.
Resistant to Powdering: Calcination improves particle strength, reducing fine powder loss during filtration and maintaining filter bed stability.
Safe and Environmentally Friendly: Made from natural diatomaceous earth, high-temperature impurity removal provides food-grade testing reports.

Product Technical Data Sheet
Low density, high whiteness, low viscosity, and high purity.
Typical Physical & Chemical Properties
|
Grade |
TD21 |
TD23 |
TD25 |
TD27 |
TS505 |
TS507 |
TS509 |
TS516 |
TS518 |
TS527 |
TS528 |
TS529 |
TS637 |
TS639 |
|
Color |
Pink |
Pink |
Pink |
Pink |
white |
white |
white |
White |
White |
White |
White |
White |
White |
White |
|
Permeability(Darcy) |
0.05 |
0.13 |
0.22 |
0.31 |
1.4 |
1.9 |
2.5 |
3.6 |
4.5 |
5.5 |
7.0 |
8.5 |
10.0 |
16.5 |
|
Tap density (g/cm3) |
0.45 |
0.45 |
0.45 |
0.45 |
0.46 |
0.46 |
0.46 |
0.47 |
0.47 |
0.47 |
0.47 |
0.47 |
0.48 |
0.48 |
|
Wet Density(g/cm3) |
0.37 |
0.37 |
0.37 |
0.37 |
0.35 |
0.35 |
0.35 |
0.34 |
0.34 |
0.33 |
0.33 |
0.33 |
0.33 |
0.32 |
|
sieve analysis(%) +150 Mesh |
0.4 |
0.6 |
0.9 |
1.2 |
2.5 |
2.8 |
3.0 |
6.3 |
7.5 |
10.5 |
15.5 |
15.8 |
19.0 |
25.0 |
|
Median Particle Diameter(um) |
15.2 |
17.8 |
20.6 |
22.8 |
25.0 |
28.8 |
30.5 |
32.5 |
37.2 |
40.8 |
45.8 |
50.2 |
60.7 |
72.6 |
|
PH |
6.8 |
6.8 |
6.9 |
7.0 |
8.5 |
8.5 |
8.5 |
9.0 |
9.0 |
9.2 |
9.2 |
9.2 |
9.5 |
9.5 |
|
1,Tyler Screen;+150 mesh= > 105 microns 2,Note: Permeability (Darcy) is tested by the CHINA method. |
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|
Product Grades |
SiO2(%) |
Al2O3(%) |
FeO3(%) |
CaO(%) |
MgO(%) |
Loss on ignition (%)
|
|
|
TD21 Thru TD27 Grades |
90.5 |
3.15 |
1.35 |
0.48 |
0.38 |
0.25 |
|
|
TS505 Thru TS639 Grades |
89.9 |
3.26 |
1.23 |
0.45 |
0.35 |
0.22 |
|
|
The properties reported represent typical values. The values are supplied as a technical service. For important health and safety information, please see the MSDS. |
中国硅藻土制造商 CHINA DIATOMITE MAN UFACTURER |
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Company Introduction
10 years of focus on diatomaceous earth research, development, and manufacturing.

Honor And Qualification
Official certifications and professional after-sales service.











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Why Choose Us
Providing one-stop solutions.

Packaging and Storage
Packaging: 20kg/25kg bags, palletized for container shipping.
Transportation: Pressure-resistant and moisture-proof, suitable for sea/land transport.
Storage: Store in a dry, sealed container, protected from moisture.
Shelf Life: 24 months unopened.

FAQ
Q: What are the differences between Calcined Diatomite Filter Aid and ordinary diatomite filter aids?
A: Calcined diatomite has higher strength, a more stable pore structure, faster filtration speed, and stronger clarification ability.
Q: What industries are it suitable for?
A: Food and beverage (beer, wine, juice), oil refining, chemical industry, wastewater treatment, pharmaceutical production, etc.
Q: Does it meet food-grade or safety certifications?
A: FDA/food-grade compliance documentation and third-party testing can be provided (according to customer needs).
Q: What about supply capacity and delivery time?
A: Standard models are in stock, with a delivery time of 7-10 days; large-volume orders can be supplied monthly on a stable basis.
Q: Do you support customized particle size or filtration performance?
A: Yes. Different particle size distributions and performance parameters can be customized according to filtration flow rate and clarification requirements.

24-hour hotline:400-822-5989
Ministry of Foreign Trade:+86-532-86623372
Domestic trade department phone:+86-532-86623521
Internal trade Department mailbox:sales@cnshengtai.com
Ministry of Foreign Trade E-mail :info@cnshengtai.com
Address:No.97 Fuzhou South Road,Jiaozhou, Qingdao, China
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