Batteries
Lead-acid battery recycling plant
Used batteries broken, smelted and refined into soft lead and alloys, with the polypropylene recovered.
Lead is the most recycled metal in the world, and India's battery makers already source most of their lead from recycling. A secondary-lead plant breaks used batteries mechanically, neutralises the acid, washes and sells the polypropylene, smelts the paste and grids in a rotary furnace and refines the crude lead into soft lead and battery alloys. The rules are strict because the hazard is lead dust and fume, and the margin is set by competition for scrap.
- Feed
- Used lead-acid batteries, drained or undrained, from collection networks and importers under licence.
- Capacity modelled
- Reference plant of about 48,000 tonnes of batteries a year, with smaller and larger cases compared.
Products and buyers
Soft lead, 99.97%
Battery paste oxide; sheets and cable sheathing
Antimonial and calcium alloys
Battery grids, to each maker's specification
Washed polypropylene chips
New battery cases and moulded goods
Neutralised acid and slag
Treated and disposed of under the hazardous-waste rules
Under the Battery Waste Management Rules, battery makers must collect 90% of the automotive batteries they sell and use 35–40% domestically recycled lead, and recyclers must recover at least 60% of the dry battery weight. Source: Battery Waste Management Rules, 2022, and amendments
02Process
How the plant works.
- 01Battery breaking
- 02Acid drain and neutralisation
- 03PP washing
- 04Paste and grid separation
- 05Rotary furnace smelting
- 06Kettle refining and alloying
- 07Ingot casting
- OUTSoft lead, 99.97%
- OUTAntimonial and calcium alloys
- OUTWashed polypropylene chips
03Rules
What shapes the plant.
- Red category: consent to establish and operate plus hazardous-waste authorisation; mechanised breaking, enclosed furnaces with bag houses and a 30 m stack are required.
- Registration as a recycler under the Battery Waste Management Rules; EPR certificates for the batteries processed.
- Imports of used batteries need MoEF&CC permission and are limited to registered recyclers.
- Regular blood-lead monitoring of workers.
04Viability
What decides whether it pays.
- 01The spread between scrap-battery and LME-linked lead prices, not the lead price itself.
- 02Lead recovery per battery and furnace fuel and flux consumption.
- 03Alloy sales and captive collection, which lift the margin above plain soft lead.
- 04Whether EPR certificate income is counted; the model plant excludes it.
05The report
What the lead-acid battery recycling report covers.
A model-plant report exists for this plant type. A site-specific version replaces its assumptions with your feed, prices, quotes and location, and is written to be taken to a lender.
- Plastic & Rubber Recycling Solutions
- Equipment Selection & Advisory
- Greenfield / Brownfield Project Execution
- Wastewater Management Towards Zero Discharge
- Executive summaryThe plant at a glance: capacity, products, project cost, returns and the decision it supports.
- Market and regulationFeed availability, buyers and prices, the rules that create or restrict demand.
- Site, capacity and productsLocation logic, plant size, product mix and specifications buyers will accept.
- Process and technologyThe route chosen and why, with a process flow and material balance.
- Machinery and utilitiesEquipment list with ratings and quantities, power, water, fuel and manpower.
- Environment and approvalsPollution-board category, emissions and effluent controls, licences and EPR registration.
- Capital and operating costBuilt bottom-up: land, civil, machinery, electricals, pollution control, pre-operative costs.
- Financials and sensitivityFive-year P&L, project financing, debt service, payback, and what moves the result.
- Risks and open questionsWhat must be confirmed with quotes, buyers and the regulator before money is committed.
Planning a lead-acid battery recycling plant?
A short message is enough to start: the waste stream, the location, the scale you are thinking of, and where you are in the decision. We reply within one business day.