Complete methanol-to-formaldehyde plants engineered, fabricated, erected and commissioned by a single supplier. Silver catalyst and metal oxide routes. Pilot scale to 300 TPD. 37% to 55% formalin. Building process plants from Bhiwadi, India since 1987.
Every plant is engineered around your methanol source, target formalin concentration and downstream resin process. These are the capacity points most frequently specified — plants outside this range are engineered to requirement.
Compact, pre-assembled formaldehyde units for R&D, process validation and small captive resin production. Shipped largely pre-piped to shorten site work.
The most common entry capacity for plywood, particle board and laminate manufacturers moving from bought-in formalin to captive production.
Mid-scale continuous production for established resin producers and merchant formalin suppliers, with steam generation from process heat recovery.
Large continuous installations for integrated chemical complexes and export-scale merchant producers, with full automation and emission control.
This is the single most consequential decision in a formaldehyde project, and it is driven by your methanol price, target concentration, plant size and how long you intend to run the asset. Both routes convert methanol to formaldehyde; they differ in operating regime, capital cost and methanol economics. Reta engineers both.
| Parameter | Silver Catalyst Process | Metal Oxide Process (Formox-type) |
|---|---|---|
| Operating regime | Methanol-rich, above the upper explosive limit | Methanol-lean, below the lower explosive limit |
| Reaction temperature | Approx. 600 – 720 °C | Approx. 250 – 400 °C |
| Catalyst | Silver crystals or silver gauze | Iron-molybdenum oxide |
| Capital cost | Lower — simpler equipment, smaller reactor | Higher — larger reactor volume, more heat-transfer surface |
| Methanol consumption | Higher per tonne of product | Lower per tonne of product |
| Product concentration | Readily reaches 50 – 55% | Typically 37 – 55% depending on absorber design |
| Residual methanol in product | Higher | Very low |
| Catalyst life | Shorter, but silver is recoverable | Longer operating campaigns |
| Typical best fit | Small to mid capacity, lower upfront investment, concentrated formalin, captive resin use | Large continuous capacity, methanol-cost-sensitive operation, low-methanol product specification |
How to read this in practice: if methanol is your dominant lifetime operating cost and you will run the plant continuously at high capacity, the metal oxide route usually repays its higher capital cost. If you are producing for captive resin use, want concentrated formalin, or are commissioning your first formaldehyde line, the silver catalyst route generally reaches production faster and at lower investment. Send us your methanol landed cost, target capacity and downstream resin process and we will model both for your specific case.
A single point of responsibility from process design through performance guarantee — so you are not coordinating six vendors across an unfamiliar supply chain.
Mass and energy balance, P&IDs, equipment sizing, plant layout and utility schedules built around your feedstock and product specification.
Vaporisation, superheating and air-methanol mixing systems designed for stable feed to the catalyst bed.
Silver catalyst or iron-molybdenum tubular reactor with the associated catalyst loading and support arrangement.
Packed or tray absorber engineered to hit your target formalin concentration with controlled residual methanol.
Waste heat boiler and condensing train recovering process heat as usable steam to cut plant operating cost.
Off-gas handling and emission abatement engineered to meet pollution control board requirements and international norms.
SS 304 / SS 316 storage tanks with temperature control, fabricated in-house alongside the plant.
Field instrumentation, MCC, PLC/DCS control panel and interlocks for safe automated operation.
Site erection supervision, cold and hot commissioning, performance testing and operator training — in India or at your overseas site.
Most formaldehyde buyers weigh a locally engineered plant against a lower-quoted imported package. The quoted price is rarely where the difference shows up — it shows up at commissioning, at the first breakdown, and at the first spare part.
You speak directly to the people designing and fabricating your plant — not a trading intermediary relaying specifications to an unnamed workshop. Technical questions get answered by the person who sized the equipment.
Drawings, P&IDs, operating manuals, test certificates and correspondence in clear English throughout — with engineers reachable in your working hours across India, the Gulf and Africa.
Our engineers travel to your plant for erection supervision, start-up and operator training, and return for support. Visa access and flight times from India to the Gulf, Africa and South Asia make callbacks practical rather than theoretical.
Because the plant is fabricated in our own works, replacement parts are made from the original drawings — not sourced from a container queue against a part number nobody can trace.
Come and witness fabrication, hydro testing and radiography at our Bhiwadi works, or nominate a third-party inspection agency. What you approve is what gets loaded.
Plants are designed around your methanol quality, utilities and downstream resin process — rather than fitting your process to the nearest standard package on a price list.
Fabrication to ASME Section VIII Division 1 and IS 2825 design codes, with material test reports, weld inspection records and complete test documentation supplied against every vessel.
Nearly four decades fabricating reactors, columns, heat exchangers and storage tanks for the chemical, paint and pharmaceutical industries — the exact equipment set a formaldehyde plant is built from.
Reta also supplies the downstream resin plants — so the formalin line and the resin line can come from one supplier, on one schedule, with one point of accountability.
Urea formaldehyde (UF), melamine formaldehyde (MF) and phenol formaldehyde (PF) resins for plywood, particle board, MDF and decorative laminates — the largest single outlet for formalin.
Hexamine, pentaerythritol, paraformaldehyde and agrochemical intermediates produced from formalin as primary feedstock.
Textile treatment chemicals, paint and coating resins, preservatives and disinfectant formulations drawing on 37% formalin.
Reta Engineering Works exports process plants and fabricated equipment to the United Arab Emirates, Saudi Arabia, Egypt, Bangladesh and South Africa. Equipment is sea-worthy packed for container or break-bulk shipment from Indian ports, supplied with complete English-language documentation, material test reports and inspection records, and supported by commissioning engineers deployed to site.
The silver catalyst process runs methanol-rich at roughly 600–720 °C and is favoured for lower capital cost, simpler equipment and concentrations up to 55%. The metal oxide route runs methanol-lean at roughly 250–400 °C, achieves lower methanol consumption per tonne and produces formalin with very low residual methanol, at higher upfront cost. Silver catalyst generally suits smaller and mid-scale or captive production; metal oxide suits large continuous plants where lifetime methanol cost dominates. See the full comparison table above.
From pilot and skid-mounted units through to 300 TPD industrial plants, covering the 30, 50, 80, 100 and 150 TPD capacity points most commonly specified by resin and chemical producers. Capacities outside this range are engineered to requirement.
Process and basic engineering, methanol vaporiser and preheat system, catalyst reactor, absorption column, heat recovery and steam generation, condensers, off-gas handling and emission control, formalin storage tanks, interconnecting piping, structural steel, instrumentation, electricals and control panel, site erection, commissioning, performance testing and operator training. Complete test certificates, material test reports and inspection documentation are supplied.
37% is the standard commercial grade and the most widely used in UF and PF resin manufacture. Plants can be configured up to 55% where your downstream resin process or freight economics favour a more concentrated product.
Yes. We export to the UAE, Saudi Arabia, Egypt, Bangladesh and South Africa, and deploy commissioning engineers to site for erection supervision, start-up and operator training. Equipment ships sea-worthy packed with full English-language documentation and inspection records.
Yes. We supply UF, MF and PF resin plants alongside formaldehyde units, so the complete formalin-to-resin line — reactors, condensers, storage tanks and controls — comes from one supplier on one schedule.
Delivery depends on capacity, process route and the scope you place with us. Share your capacity, target concentration and site location and we will issue an indicative schedule alongside the technical proposal.