LCS was given the task by SFCCL to evaluate various technology transfer offers received by them and that are available world over.

LCS carried out detailed investigation of various technologies for Pentaerythritol starting from Formaldehyde, Acetaldehyde and Caustic Soda as raw material, compared the yields and grades/quality of product and provided a detailed investigation report with the recommendation for SFCCL to tie up the technology. Ultimately LCS recommended its own technology which incorporates electro - dialysis to separate Sodium formate stream from Pentaerythritol stream and high pressure splitting to convert formals back to mono - penta.

LCS supplied on turnkey basis a De-acidifier, based upon Anion exchange resins, to selectively reduce Formic Acid content of such Formaldehyde. The arrangement is made to continuously re-circulate the tank material through de-acidifier or regular basis.

LCS provided complete turn key plant for additional facilities which included the know-how, basic and detailed engineering, equipment supply and commissioning assistance starting from drying operation of Hexamine to achieve better moisture properties in the product. The equipment supply has already been completed in May 2002.The plant has been successfully commissioned.

LCS conceived and suggested a multiple effect evaporator system for treating the effluent to concentrate and recover Hexamine which can be re-cycled to Hexamine plant for recovery. Ammonia is also stripped and recovered as a concentrated aqueous solution.The concentrated aqueous solution is recycled back to Hexamine plant whereas the water after recovery of Hexamine and Ammonia from effluent is used as a "make up" to cooling tower.Thus the scheme makes this as a close loop project eliminating major effluent treatment requirement.

LCS has supplied the complete plant on 2 skids respectively for triple effect evaporator and for ammonia distillation. The scope included basic and detailed engineering, equipment supply on skids and commissioning assistance. The plant has been successfully commissioned.

SFCCL asked LCS to find the ways and means to recover Formaldehyde from this excess water. LCS based upon the literature survey conducted the R&D and pilot plant experiments for distillation column which can provide 35% to 40% Formaldehyde as the top product and less than 0.2% Formaldehyde as the bottom product. The top product can be recycled /sold as standard aqueous 37% solution while the bottom product can be used as water for absorption in Formaldehyde plant or excess can be sent to effluent treatment plant requiring negligible treatment.

LCS based upon the pilot plant trials designed a column for distillation of Formaldehyde under high pressure, completed the basic and detailed engineering and supplied the equipment on a skid. The plant has been successfully commissioned.