Manufacture of Pesticides

Pesticides can be categorized into several groups - Fungicide, Herbicide, Insecticide, etc. There are many different methods of application and use and products are available in a number of formulation types, e.g. powder, granules, liquid concentrates and sprays. 

Pesticides are typically suspensions of insoluble active ingredients in water; aqueous or oil based solutions are also used. Small amounts of ingredients such as thickeners, antifreeze, antiforming agents and dispersion and wetting additives complete the formulation. The active ingredient content varies considerably, although this is typically around 50%.

The Process

Typical processing methods can be summarized as follows: 

The premixing system must be capable of meeting the following process requirements:

• Incorporating and dispersing large volumes and high proportions of powders.
• Some degree of particle size reduction is required.
• Each formulation has its own set of process conditions - the system must be versatile and adaptable to the many variations in product type.