# Lead processing - Stage 3 (technology) internal name `lead-mk03` · tier 5 (Chemical science pack, [tier 5](https://factorio.kalzumeus.com/tier/5.md)) HTML page: https://factorio.kalzumeus.com/tech/lead-mk03/ ## Cost 800 units of (1 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 2 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 3 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 6 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 10 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 120 s each. ## Requires (1) - [Additives](https://factorio.kalzumeus.com/tech/additives.md) ## Leads to (5) - [Cottongut upgrade](https://factorio.kalzumeus.com/tech/cottongut-upgrade.md) - [Lead processing - Stage 4](https://factorio.kalzumeus.com/tech/lead-mk04.md) - [Research upgrade](https://factorio.kalzumeus.com/tech/research-upgrade.md) - [Silver - Stage 2](https://factorio.kalzumeus.com/tech/silver-mk02.md) - [Mounts - Stage 3](https://factorio.kalzumeus.com/tech/spidertron.md) ## Unlocks (12 recipes) ### High grade lead (`high-grade-sl`) - 3 s · tier 5 - Ingredients: 4 × [Silver lead concentrate](https://factorio.kalzumeus.com/item/sl-concentrate.md) - Results: 1 × [High grade lead](https://factorio.kalzumeus.com/item/high-grade-lead.md) - Made in: Solid separator MK 01, Solid separator MK 02, Solid separator MK 03, Solid separator MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Refined silver lead dust (stage 2) (`lead-refined-dust-02`) - 2.5 s · tier 5 - Ingredients: 1 × [Refined silver lead dust (stage 1)](https://factorio.kalzumeus.com/item/lead-refined-dust.md) - Results: 1 × [Refined silver lead dust (stage 2)](https://factorio.kalzumeus.com/item/lead-refined-dust-02.md) - Made in: Ball mill MK 01, Ball mill MK 02, Ball mill MK 03, Ball mill MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Refined silver lead dust (stage 3) (`lead-refined-dust-03`) - 2 s · tier 5 - Ingredients: 1 × [Refined silver lead dust (stage 2)](https://factorio.kalzumeus.com/item/lead-refined-dust-02.md) - Results: 1 × [Refined silver lead dust (stage 3)](https://factorio.kalzumeus.com/item/lead-refined-dust-03.md), 1 × [Sand](https://factorio.kalzumeus.com/item/sand.md) - Made in: Automated screener MK 01, Automated screener MK 02, Automated screener MK 03, Automated screener MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Molten lead (`molten-lead-02`) - 4 s · tier 5 - Ingredients: 100 × [Silver lead solution (stage 1)](https://factorio.kalzumeus.com/fluid/sl-01.md), 3 × [Borax](https://factorio.kalzumeus.com/item/borax.md), 3 × [Graphite](https://factorio.kalzumeus.com/item/graphite.md) - Results: 70 × [Molten lead](https://factorio.kalzumeus.com/fluid/molten-lead.md) - Made in: Electric arc furnace MK 01, Electric arc furnace MK 02, Electric arc furnace MK 03, Electric arc furnace MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Molten lead (`molten-lead-03`) - 3 s · tier 5 - Ingredients: 1 × [High grade lead](https://factorio.kalzumeus.com/item/high-grade-lead.md), 2 × [Borax](https://factorio.kalzumeus.com/item/borax.md), 2 × [Graphite](https://factorio.kalzumeus.com/item/graphite.md) - Results: 500 × [Molten lead](https://factorio.kalzumeus.com/fluid/molten-lead.md) - Made in: Electric arc furnace MK 01, Electric arc furnace MK 02, Electric arc furnace MK 03, Electric arc furnace MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Silver lead solution (stage 1) (`sl-01`) - 5 s · tier 5 - Ingredients: 100 × [Silver lead zinc pulp (stage 2)](https://factorio.kalzumeus.com/fluid/slz-pulp-02.md), 50 × [Z3 reagent](https://factorio.kalzumeus.com/fluid/z3-reagent.md), 50 × [Pressurized air](https://factorio.kalzumeus.com/fluid/pressured-air.md) - Results: 50 × [Silver lead solution (stage 1)](https://factorio.kalzumeus.com/fluid/sl-01.md), 100 × [Tailings](https://factorio.kalzumeus.com/fluid/tailings.md) - Made in: Flotation cell MK 01, Flotation cell MK 02, Flotation cell MK 03, Flotation cell MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Silver lead solution (stage 1) (`sl-01-2`) - 5 s · tier 5 - Ingredients: 3 × [Refined silver lead dust (stage 3)](https://factorio.kalzumeus.com/item/lead-refined-dust-03.md), 150 × [Oleochemicals](https://factorio.kalzumeus.com/fluid/oleochemicals.md), 150 × [Z3 reagent](https://factorio.kalzumeus.com/fluid/z3-reagent.md), 350 × [Pressurized air](https://factorio.kalzumeus.com/fluid/pressured-air.md) - Results: 150 × [Silver lead solution (stage 1)](https://factorio.kalzumeus.com/fluid/sl-01.md) - Made in: Flotation cell MK 01, Flotation cell MK 02, Flotation cell MK 03, Flotation cell MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Silver lead solution (stage 2) (`sl-02`) - 2 s · tier 5 - Ingredients: 200 × [Silver lead solution (stage 1)](https://factorio.kalzumeus.com/fluid/sl-01.md), 4 × [Lime](https://factorio.kalzumeus.com/item/lime.md) - Results: 100 × [Silver lead solution (stage 2)](https://factorio.kalzumeus.com/fluid/sl-02.md), 100 × [Silver lead solution (stage 3)](https://factorio.kalzumeus.com/fluid/sl-03.md) - Made in: Hydrocyclone MK 01, Hydrocyclone MK 02, Hydrocyclone MK 03, Hydrocyclone MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Silver lead solution (stage 3) (`sl-03`) - 2 s · tier 5 - Ingredients: 100 × [Silver lead solution (stage 2)](https://factorio.kalzumeus.com/fluid/sl-02.md), 300 × [Water](https://factorio.kalzumeus.com/fluid/water.md) - Results: 50 × [Silver lead solution (stage 3)](https://factorio.kalzumeus.com/fluid/sl-03.md), 100 × [Tailings](https://factorio.kalzumeus.com/fluid/tailings.md) - Made in: Thickener MK 01, Thickener MK 02, Thickener MK 03, Thickener MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Silver lead concentrate (`sl-concentrate`) - 2 s · tier 5 - Ingredients: 400 × [Silver lead solution (stage 3)](https://factorio.kalzumeus.com/fluid/sl-03.md), 1 × [Filtration media](https://factorio.kalzumeus.com/item/filtration-media.md) - Results: 4 × [Silver lead concentrate](https://factorio.kalzumeus.com/item/sl-concentrate.md) - Made in: Filter MK 01, Filter MK 02, Filter MK 03, Filter MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Silver lead zinc pulp (stage 1) (`slz-pulp-01`) - 1 s · tier 5 - Ingredients: 2 × [Silver lead dust](https://factorio.kalzumeus.com/item/lead-dust.md), 25 × [Cyanic acid](https://factorio.kalzumeus.com/fluid/cyanic-acid.md) - Results: 100 × [Silver lead zinc pulp (stage 1)](https://factorio.kalzumeus.com/fluid/slz-pulp-01.md), 1 × [Refined silver lead dust (stage 1)](https://factorio.kalzumeus.com/item/lead-refined-dust.md) - Made in: Hydroclassifier MK 01, Hydroclassifier MK 02, Hydroclassifier MK 03, Hydroclassifier MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md) ### Silver lead zinc pulp (stage 2) (`slz-pulp-02`) - 1 s · tier 5 - Ingredients: 300 × [Silver lead zinc pulp (stage 1)](https://factorio.kalzumeus.com/fluid/slz-pulp-01.md), 50 × [Soda ash regeneration solution](https://factorio.kalzumeus.com/fluid/soda-ash.md) - Results: 300 × [Silver lead zinc pulp (stage 2)](https://factorio.kalzumeus.com/fluid/slz-pulp-02.md) - Made in: Leaching station MK 01, Leaching station MK 02, Leaching station MK 03, Leaching station MK 04 - Unlocked by: [Lead processing - Stage 3](https://factorio.kalzumeus.com/tech/lead-mk03.md)