Industry
Bulk Drugs
Bulk drug and API manufacture often includes a carbon treatment step: powdered carbon is charged into the reaction mass or solution, stirred, and filtered out, taking colour and impurities with it.
Quick answer
How is activated carbon used in bulk drug manufacturing?
In bulk drug and API manufacture, powdered activated carbon is charged into the reaction mass or solution to remove colour and impurities, then filtered out using a filter aid. Granular carbon columns are used for continuous purification of process liquids.
Where our products fit in bulk drug manufacture
The highlighted stages are where our products are used. Select a product for its technical details.
Common problems and how they are treated
Slow filtration after carbon treatment
Filter aid as precoat and body feed.
Results that vary between batches
The same approved grade, supply after supply.
Ash or soluble matter in product
Washed carbon grades where purity matters.
Continuous liquid purification
Granular carbon for column systems.
Products for bulk drugs
Powdered Activated Carbon
Powdered carbon charged to reaction masses and solutions for decolourisation and impurity removal.
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Filter Aid Powder
Filter aid as precoat and body feed on nutsche filters, filter presses and sparklers.
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Granular Activated Carbon
Granular carbon columns for continuous purification of process liquids.
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Bulk Drugs: common questions
What causes slow filtration after a carbon treatment step?
Fine carbon particles can blind the filter medium. A filter aid precoat, with body feed where needed, keeps the cake porous and the filtration rate steady.
How much activated carbon is used per batch?
It depends on the product, the impurity load and the result required, and is usually established through trials. We can share grade data to support your trials.
Discuss your bulk drugs requirement
Tell us about your application and requirements. Our team will help you identify the appropriate product for your needs.
