MANUFACTURING OF OXALIC ACID BY MOLASSES PROCESS. RakhiVishwakarma S.H Jondhale Polytechnic Final year project.
CHAPTERS • Introduction of oxalic acid • History of oxalic acid • Manufacturing process available • Selected process • Flow sheet • Manufacturing process description • Advantages and disadvantages of oxalic acid • Properties • Application • Summary • Future plans
INTRODUCTION OF OXALIC ACID • IUPAC Name: Oxalic acid • Common name: Ethanedioic acid • Molecular formula: HO2CCO2H • Molecular weight:126 • Melting point: 187 degree
OXALIC ACID • It is an cleaning agent • Industrial level • Individual use • With other chemical • For equipment Textile industries • Degumming of silk • Printing on cotton • Dye on wool
DOMESTIC USE • Bleaching • Polishing • Kitchen levels.
TYPES OF PROCESS AVAILABLE • The literature survey brings forth a number of processes differing basically on the type of raw material used. The process available are: • Alkali fusion of celluose, • Synthesis from sodium formate, • Oxidation of ethylene glycol, • Recovery of nitric acid, • Oxidation of propylene, • Electrolytic process • Fermentation process • Molasses of nitric acid
REASONS FOR SELECTION • Low cost. • Simplest operation. • Trouble free. • Availability of raw products in abundance.
FLOW SHEET INFORMATION • Name of flow sheet: Oxidation of molasses by nitric acid. • Raw material: Nitric acid, Sulphuric acid, Water, Molasses. • Catalyst: Venadium pentaoxide (V2O5).
ADVANTAGES • Oxalic acid can be reused. • It is present in leaves, roots of various plants in many forms. And when taken in required quantities is perfectly safe. • Having adequate levels of oxalic acid in your blood eliminates all abnormal cells effectively with no harmful side effects, thus results in curing cancer. • Very useful in beekeeping
DISADVANTAGES • Oxalic acid can also cause extensive damage to plants. • Oxalic acid is caustic and corrosive to humans. Oxalic acid removes calcium in the blood, forming calcium oxalate, and severe damage to the kidney may occur because of the insoluble calcium oxalate. • Oxalic acid in its crystalline form is poisonous. • Has an harmful effect on environment due to pH shift.
PROPERTIES 1. Appearance... Transparent, colourless, odourless crystals. 2. Solubility... 1gm/7ml (water).3. Specific Gravity... 1.654. Boiling Point... 149 - 160°C (sublimes).5. Melting Point... 101.5°C.6. Vapour Density... 4.4 (air=1).7. Vapour Pressure... < 0.001 @ 20°C (mm Hg).8. Molecular Weight... 126.07.9. Chemical Formula: HO2CCOOH
APPLICATIONS • Woodwork
CLEANING AGENT RUST REMOVER IMAGE OF RUST REMOVAL :
TEXTILE INDUSTRY • USED AS A DISINFECTANT:
SUMMARY • So from all the information we have went through , we can conclude that • Oxalic acid is a comparatively strong organic dicarboxylic acid. • It is a ubiquitous substance in mammalian tissues and plants . • It is endogenously produced in humans and excreted at amount of about 25mg daily via urine. • Plant food constitutes the major source of dietary oxalic acid . • Oxalic acid is occurring naturally in honey with an average content of approximately 200mg /kg.
FUTURE PLANS • 1.Material balance . • 2. Cost estimation. • 3. Safety precaution. • All the above information would be collected by 28’Jan’2011.