Sl. No. Titile of the Project Sponsoring Agency Duration Sanctioned amount(Rs. in Lakhs) Result
1. Novel Extractants for Actinide separations IGCAR 3 years
3.6 Completed
2. Catalytic Liquefaction of Neyveli Lignite CMPDI 3 years
14 Completed
3. Synthesis and Characterization of Bismuth Titanate (BiT) – Calcium Copper Titanate (CCTO) Nanocomposite Materials for Patch Antenna Applications DRDO-ER&IPR 2 years
9.6 Completed
4. Synthesis and ferroelectric properties of rare earth modified bismuth titanate nanowires DAE, BRNS

3 years


19.725 Completed


Catalytic Liquefaction of Neyveli Lignite

—Funding Agency : CMPDI, Ranchi
—Duration : 3 years (March 2009 to March 2012)
—Amount : Rs. 14,00,000/-
—Status     : Completed
—Principal Investigator and Co Investigator : Dr.N.Krishnamurthy and Dr.P.Vallinayagam

Objective : 

  Depolymerization is an essential initial step to breakdown the complicated structures of lignite into simpler ones for liquefaction. It is expected that additional alkylation of depolymerized lignite could reduce inter chain interactions, enhance diffusion of catalysts into the polymer matrix to favour cleavage of chain. As the alkylateddepolymerized lignite is highly soluble in organic solvents than raw and depolymerized lignite, it can be subjected to fractionation by column chromatography to obtain valuable compounds

Methodology :

  Neyveli Lignite was depolymerized with phenol using phosphotungstic acid as catalyst at 185OC. Catalytic alkylation of depolymerized Neyveli Lignite was carried out with various alcohols as alkylating agents in presence of phosphotungstic acid as catalyst. The tert-butylateddepolymerized lignite was fractioned into different compounds using column chromatography. Three major compounds were isolated and characterized by FTIR, 1H NMR and Mass spectral techniques.

Outcome :

International Journal Publications : 2

1. Liquid Phase Depolymerization of Neyveli Lignite Over Phosphotungstic Acid

     Asian Journal of Chemistry; Vol. 25, No. 13 (2013), 7437-7440

2. Catalytic Alkylation of Depolymerized Neyveli Lignite

     Asian Journal of Chemistry; Vol. 26, No. 13 (2014), 3963-3966