Dry Flowable (DF)
Description
Dry Flowable (DF) is a solid formulation prepared by wet milling (like the process of SC) followed by spray drying or fludized bed granulation to remove moisture.
Benefits
● Non-dusty, freely flowable, reduced packaging and transportation costs
● Spontaneous dispersion upon dilution with perfect blooming effect, appropriate for aerial application
● A smaller droplet particle Achievable for better efficacy
● Suitable for continuous and large scale production, low labor intensity and clean production
● High loading of active ingredients
Limitaions
● One-time investment of facilities and technical threshold is high, suggest to use this production method when reach a certain production scale.
Comparisons between Dry Flowable and Water Dispersible Granule
|
Item |
WDG |
DF |
|
Milling method |
Dry milling |
Wet milling |
|
Particle size after milling |
5-15μm |
1-5μm |
|
Dispersion in water |
left: WDG right: DF |
|
|
Granulation method |
Extrusion, granule is strong but poor in flow |
Spay drying, granule is softer but flowable |
|
Granule size |
Millimetre level |
100-150μm |
Granulation technologies
|
Item |
High tower spraying granulation |
Continuous fluid bed granulation |
|
Height of facility |
Around 30 meters |
Around 15 meters |
|
Operating temperature |
110-140℃ |
70-120℃ |
|
Granule size |
80-120 mesh |
60-80 mesh |
|
Granule morphology |
|
|
|
Benefits |
Mature facility, stable operation, suitable for most common products |
Good wettability performance, drying time can be adjusted, suitable for continuous and large scale production |
|
Limitaions |
Drying time is fix, not suitable for some AIs of low-melting-point or easily stick to wall |
not suitable for some AIs of high viscosity and low |
Dry Flowable (DF) formulations Prepared by Two Granulation Technologies:
Spay Drying and Fluid Bed
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Dispersant SP-WG33
(Universal dispersant with high temperature tolerance)SP-WG33 is a comb-like polycarboxylate dispersant supported by controllable polymerization technology. Moderate proportion between hydrophobic Add to Inquiry -
Dispersant SP-WG32
(Low Foaming, Milling Aid)SP-WG32 is a comb-like polycarboxylate dispersant with moderate hydrophobic groups and MW distribution contributed by controllable polymerization technology. This greatly Add to Inquiry -
Dispersant SP-WG31
(Enhance Milling Efficiency)Alkyl naphthalene sulfonate dispersant synthesized by novel condensation process, featured by uniform MW distribution. Providing better adsorption stability on pesticide Add to Inquiry -
Dispersant SP-WG30
(Lignin Sulfonate with Low Sugar Content and Robust Dispersion Ability)SP-WG30 is a kind of lignosulfonate dispersant with MW around 10,000 and sulfonation degree of 1.0. Its high molecular weight Add to Inquiry -
Dispersant SP-WG36
(Universal Dispersant for DF)SP-WG36 is a polycarboxylate dispersant with comb-like structure using controllable polymerization technology. Specially designed for DF formulations. Its unique Add to Inquiry -
Chlorothalonil 720 Fungicide(Application Case)
• Product name: Dispersant SP-WG33. • CAS No: 62601-60-9. • Chemical name: Polycarboxylate. • Application: Dispersant for DF formulations. • Packing: In 200kg Net Drum. • Qty in 20′ FCL: 16MT. • Add to Inquiry -
Dimethomorph 50(Application Case)
Dimethomorph 50 is a chemical fungicide used to control diseases in crops such as grapes, potatoes, lettuce, and cucumbers. It belongs to the group of chemicals known as Oomycete fungicides, which Add to Inquiry -
Metiram 55 Pyraclostrobin 5 WG(Application Case)
Metiram 55 pyraclostrobin 5 wg is a combination fungicide consisting of metiram and pyraclostrobin as active ingredients. It is commonly used to control a wide range of fungal diseases in various Add to Inquiry
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Application of Dry Flowable
Lignosulfonates with surfactants. These particular products act as a dispersant to suspend the particles of a formulation, work as a binder to help strengthen the granules and as a disintegrant to help break the granules apart when diluted in water. The addition of surfactants offers advantages such as formulation flexibility, better wetting, greater performance with high silica levels and improved compatibility. They can also improve the water tolerance and fertilizer compatibility of a tank mix.
It is a polymer dispersant with a special lipophilic group and certain rigidity. It has good compatibility with both high-loading lipophilic pesticides and low melting point pesticides due to its strong lipophilicity. It also has high hand water resistance and excellent dispersibility at different temperature. The product itself is not sticky and will not cause hardening of formulation.
|
Item |
Standards |
|
Appearance (25°C) |
Yellow viscous liquid |
|
PH (1% aqueous solution, 25°C) |
6.0 ~ 8.0 |
|
Nonvolatile matter (%) |
30.0±1.0 |
A method for preparing a pesticide dry suspension, comprising: first selecting a high-performance dispersant to prepare a medium-high content pesticide suspension, then adding a water-soluble high-temperature resistant dispersant and a water-soluble disintegrant to the suspension system for shear mixing, and then spray drying to obtain a dry suspension product. This method is mainly suitable for preparing a high-content suspension with a difficult technical system, such as a low-melting-point technical with a melting point below 80°C, a highly water-soluble technical with a solubility in water greater than 0.5g/L, and a technical that easily forms hydrogen bonds and water clusters with water. By the above method, the preparation of the dry suspension can increase the ratio of the solid content in the suspension slurry, reduce the energy consumption of spray drying, and increase the granulation rate and particle size of the dry suspension.

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Packing |
Drum |
|
Shipping |
Shipped by road, sea, rail or air |
FAQ
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