Furnace Fabrica began operations in the sulphuric acid industry in the early 80s, in collaboration with Outotec Group (formerly Lurgi Metallurgie GmbH) based in Germany.

Since then, we have designed and constructed sulphuric acid plants in over 40 countries. Our energy-efficient plants have been developed to help clients meet their specific needs.

Using our engineering knowledge and years of experience on diverse projects, we also provide technical support throughout the life-cycle of a plant. This can be related to processes involving Non-Ferrous Metallurgy and the production of oleum, liquid sulphur dioxide and other chemicals.

However, our main areas of focus are gas-based and element-based sulphuric acid plants:

1) Gas based Sulphuric Acid Plants



Roasting is a process that utilizes gas-solid reactions to remove sulphur (as sulphur dioxide) and impurities like Arsenic, Antimony, Mercury and halogenides from concentrates and ores.

At Furnace Fabrica, we utilize fluidised bed technology to facilitate the transformation of sulphides (e.g. zinc sulphide) into oxides (e.g. zinc oxide) and sulphur dioxide.

We also offer energy recovery solutions that convert waste heat from acid-circulating systems into low-pressure steam for use in power generation or other processes.

The off-gas treatment and energy recovery system of the roaster includes:

  • Hot off-gas cooling & dust separation
  • Wet Gas Cleaning
  • Sulphuric Acid Plants

2) Element based Sulphuric Acid


Although sulphur usually enters the combustion chamber in molten form, it can sometimes be delivered in solid form. In such cases, we provide:

  • Efficient facilities for sulphur melting and filtration− which makes sulphur suitable for combustion
  • Loading/unloading stations for solid and liquid sulphur
  • Sulphur filtration and storage units

With our captive fabrication and in-house production facilities, our capabilities (100-over 2000 TPD) range across:

  • Mechanical Works
  • Civil Works
  • Insulation Works
  • Special Piping Equipment Installations
  • Refractory Products
  • Rubber Lining Solutions
  • Shutdown Management
  • Relocation
  • Renovation/Revamping


13 Feb, 2020

Furnace Fabrica joins hands with EME Education- SAP partner and leading player in education & technology to create an industry-ready pool of skilled youth.

To learn more, visit:

29 Nov, 2019

Significant Milestone achieved with ISO 45001: 2018 Certification- the newest OHS Management System standard

29 Jan, 2019

Significant Manufacturing Order for Expansion Project in Western India

31 Aug, 2018

EPCC Order for Large Process Plant from Leading Indian-based Synthetic Fiber Manufacturer

30 July, 2018

Large Contract Awarded for Aluminium Refinery in Eastern India

20 April, 2017

Major Contract Awarded for Infrastructure Works by Southern-India based public sector refinery

12 April, 2017

Large Contract Awarded for Continous Copper Rod Casting & Rolling Plant in Western India

17 Feb, 2017

Significant Public Sector Contract awarded for Integrated Refinery Expansion Project in Southern India

24 Dec, 2016

Major Contract Awarded by Leading Exporter of Phosphate Fertilizer in Morocco