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Batch reactor capacity for toll manufacturing

For anyone who needs a synthesis step run in somebody else’s reactor, at campaign scale, to their process.

Live listings

3 verified units list Batch reaction capacity today. Every listing is published under an alias; the plant’s identity is exchanged only after both sides sign.

  • MS glass-lined reactor, 1 KL

    Verified Toller GJ-1002 (GJ-1002)

    BHARUCH district, Gujarat

    Batch reaction, Chlorination

    Reactor capacity
    1 – 1 KL
    Batch size
    0.2 – 0.8 KL
    Lead time
    15 days
    Materials
    Glass-lined
    Available nowDocument verified

  • MS glass-lined reactor, 2 KL

    Verified Toller GJ-1002 (GJ-1002)

    BHARUCH district, Gujarat

    Batch reaction, Chlorination

    Reactor capacity
    2 – 2 KL
    Batch size
    0.5 – 1.8 KL
    Lead time
    30 days
    Materials
    Glass-lined
    Available nowDocument verified

Search these 3 listings — add capacity, material of construction or certification filters from there.

What batch reaction on job work involves

Batch reaction is the core of chemical toll manufacturing. A client owns a process — a nitration, a condensation, an amination — and buys time in a multi-purpose reactor to run it, typically for a campaign of several batches. The plant contributes the vessel, the utilities, the operators and the compliance; the client contributes the know-how, the specification and often the key raw materials.

The reactors themselves are glass-lined mild steel for acidic or corrosive service, SS316 or SS304 for neutral and alkaline chemistry, and Hastelloy or PTFE-lined vessels for the difficult cases. Working volumes run from 1 KL pilot vessels to 20 KL and beyond, jacketed for steam, hot oil or chilled brine, with reflux condensers, receivers and scrubbers around them. Fit is about the whole train, not the vessel alone.

What to check before you send an enquiry

The questions our desk puts to a unit before it qualifies an enquiry for Batch reaction. A listing answers most of them; the trial batch answers the rest.

  • Material of construction against your reagents at process temperature — glass lining for acid phases, SS316 for alkali, and a plant that will show you the vessel history.
  • Temperature and pressure envelope: jacket utility range (chilled brine to hot oil), design pressure, and whether the reactor is rated for the exotherm your process carries.
  • Utilities and abatement: scrubber for acid gases, solvent recovery, nitrogen blanketing, and a flameproof area classification if your solvents need it.
  • Effluent route: what leaves your process, and whether the plant’s ETP or CETP membership can take that load at your campaign size.
  • Batch records, retained samples and a named process chemist on the plant side who will run the trial batch with your team present.

Where the capacity is

Multi-purpose batch plants are densest in Ankleshwar, Panoli and Vapi in Gujarat, with strong pharma-oriented capacity in Pashamylaram and Jeedimetla near Hyderabad and a long-established chemical estate at Tarapur north of Mumbai.

Unit operations

Industries served

Clusters

Common questions

What is a batch reactor used for in the chemical industry?
A batch reactor holds a fixed charge of reactants for a fixed time under controlled temperature and pressure, then is emptied and cleaned before the next charge. It suits products made in campaigns rather than continuously: agrochemical intermediates, pharmaceutical intermediates, dyes, and specialty chemicals whose volumes do not justify a dedicated plant. The same vessel can make different products in sequence, which is what makes it the workhorse of toll manufacturing.
What is the difference between a batch reactor and a continuous reactor?
A batch reactor processes one charge at a time and every batch has a start and an end, so conditions change through the run. A continuous reactor is fed and discharged without stopping and holds steady conditions. Batch suits small and medium volumes and frequent product changes; continuous suits one product at high volume. Toll manufacturing is overwhelmingly batch for that reason.
Why are batch reactors used in the pharmaceutical industry?
Pharmaceutical intermediates and APIs are made in campaigns, need full traceability of each batch, and change often as products move through development. A batch reactor gives a discrete, documented lot that can be released or rejected on its own, which is what regulators and quality systems are built around. Multi-purpose batch plants also let one site make many products under the same approvals.
What reactor material of construction should I specify?
It follows your chemistry, not the plant’s preference. Glass-lined steel handles most acidic and corrosive duties, stainless steel suits neutral and mildly corrosive work, and Hastelloy or similar alloys are for aggressive halogenated or high-chloride systems. Ask for the vessel’s design pressure and temperature, the agitator type, and whether the jacket carries steam, hot oil or brine.

Other unit operations

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