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TitleA single-step process for the preparation of highly pure alkyl esters used in making lactic acid, poly lactic acid
Knowhow is available forA single-step process for preparation of highly pure alkyl esters, which is used in the manufacture of lactic acid and further to poly lactic acid – both with wide industrial and commercial applications
SummaryNCL’s process uses alkali metal carboxylate salts to convert to its respective pure alkyl esters by a single, direct esterification step. Alkali metal salts used are prepared from natural sources. This process results in alkyl esters of very high purity (99.5-99.8%). The use of mineral acid is eliminated in this process – hence, no undesired sulfate side products are generated. The resulting methyl lactate can be hydrolyzed to get pure lactic acid.
Advantages• The products are of extremely high purity • Pollution free process (by avoiding sulfate side-products) • The byproducts (the corresponding carbonate salts) and the un-reacted carbon dioxide and alcohol can be recycled and reused in the process again –hence reducing cost

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Scientific/ engineering subject areas Chemical sciences & engineering ; Others
Investor interest categories Materials Technology including Nanotechnology ; Clean/Green/ Enviro/Energy Technology
Industries Pharmaceuticals, Bulk Drugs, Formulations ; Agriculture, Agro-biotech, Agro-products, Fertilizers, Food processing & Secondary Agriculture Industrial Biotechnology Medical Biotechnology, Biomed Products, Medical Healthcare, Diagnostics Polymers, Plastics, Elastomers, Fibers, Adhesives, Paints, Specialty Polymers, Natural Polymers, Fibers and Leather Others
Customer categories and nature of business Businesses and other industries (B2B) ; Others
Technology readiness levels TRL B: Proof-of-concept demonstrated in lab scale

Year of development
Whether patents are part of this offering ?Yes

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Database reference

Database record number 20131002112527
Date of upload 3 / Oct / 2013
Date of update 4 / Oct / 2013
URL to site when communicating about this knowhow http://nclinnovations.org/khdb/viewrecord.php?recordno=20131002112527
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