During the process of recovery of lac from the stick lac, the stick lac is scraped and washed with hot alkali solution to get a refined product known as seedlac. During this process, two by-products lac dye and wax may dissolve and goes into the aqueous effluent (filtrate). To recover these by-products in the pure form for commercial applications, many difficulties faced by shellac industries. These industries are dumping this effluent into the environment due to the lack of innovative technology to recover the dissolved lac resin. The present invention not only evade the environmental-pollution, but also an economical process for the recovery of value-added products from the aqueous effluent.
•Complete recovery of lac resin from the alkaline aqueous effluent
•Economically and commercially viable process.
•Eliminates the use of filtration steps
•The solvents used in the process are recoverable and reusable.
•The final aqueous solution is clear and easy to recover inorganic salts or the concentrated solution will be used as a brine in the aleuritic acid recovery process.
Shellac/lac manufacturers, ready at lab scale demonstration
It reduces the environmental pollution by the recovery of lac resin from the aqueous effluent
Alkaline aqueous effluent from shellac/lac industry
As desired by the customer for their production
The process is the first of its kind for the recovery of lac resin from the aqueous effluent of shellac industry
As informed by the customer, the product (lac resin) recovered from the aq. effluent is useful for commercial applications
Demonstration of extraction of lac resin @ 1 L effluent/batch.
