PURIFICATION
OF PLASTICS

A New Vision for the Plastic Economy

PolyCycl is developing technologies for up-cycling of different
kinds of post-consumer waste plastics, using a de-lamination,
de-inking and a solvent based purification approach.

Re-Cycling of Plastics

At the heart of the plastic waste problem is the linear take-make-dispose model of consumption, which means products get manufactured, bought, used briefly and then thrown away.

The circular economy represents an attempt towards a more sustainable alternate, where materials are kept flowing in a closed loop system, rather than being used once and then discarded.

A big challenge today for furthering the circular economy on plastics is paucity of cost-effective technological interventions that can upcycle waste-plastics rather than down-cycle them.

The goal of PolyCycl's upcycling processes is to achieve a plastic recyclate that can be returned to the production process, thereby minimising the need for virgin resources in making of new plastic articles.

linear economy
recycling economy
circular economy

A SOLVENT-BASED APPROACH TO UP-CYCLING

The solvent extraction process starts by isolating the target plastic resin from a mixed waste
stream. The isolated resin is then dissolved in one or more carefully selected solvents to
obtain a homogenised solution.

Additives, colorants, odorants and other non-plastic contaminants are then removed from
this homogenised solution using a series of physical separation and chemical-assisted steps.

The filtrate left behind contains the purified plastic in a dissolved form. The purified resin is
then re-precipitated and recovered by addition of a non-solvent to the filtrate mix.The end
result is a purified resin that may be used for manufacturing of new plastic articles.

The entire process operates at relatively low temperature and pressure and uses non-
hazardous solvents which are recovered and re-circulated.

The development of these technologies is presently at TRL-4 readiness.

TECHNOLOGIES IN R & D

TetrapakCyclTM

Chemical Recycling of Tetrapak

Recovery Of Polyethylene & Aluminium from post-consumer Poly-Al film.

  • POLYETHYLENE
  • ALUMINIUM

MLPCyclTM

Chemical recycling of flexible Multi Layered Plastics

De-metallization, de-lamination and de-inking of flexible MLP.


Brand-agnostic
Multi Layered Packaging (MLP)

Mixed Poly-olefins (PE/PP)
recovered from MLP
PET recovered from MLP

PETCyclTM

Chemical recycling of post-consumer coloured PET

Recovery of decolorized PET crystals from post-consumer colored PET bottles.

SOLVENT
DISSOLUTION

RECOVERED PET

REMOVAL OF ADDITIVES AND CONTAMINANTS

PURIFIED FILTRATE

PECyclTM

Chemical Recycling of post consumer HDPE

Removal of colorants, pigments, dyestuffs, odorants.

SHREDDED HDPE

RECOVERED HDPE

SOLVENT
DISSOLUTION

DECONTAMINATED HDPE

Research & Development

PolyCycl’s R&D centre is located near Chandigarh, in the
low-lying foothills of the Indian Himalayas.

Explore the R & D Centre