In the chemical industry, carbide is an important base material for fertilisers and in the production of raw iron. Until now, the synthesis of carbide has principally been based on the use of coal and coke, which have become increasingly more expensive as a result of the high worldwide demand for energy.
However, the carbon required for producing carbide can also be obtained from plastic waste. The BINE Projektinfo brochure “Producing carbide using plastic waste” (08/2011) presents a new process that enables the material- and energy-based use of residues from the processing industry and is now entering regular operation.
The manufacture of one tonne of carbide requires between 3,200 and 3,500 kWh of electricity, whereby one tonne of lime and 0.6 tonnes of coke and coal are used as the raw materials. In order to partly replace them, the new synthesis process also enables the use of sorted, pre-selected and shredded waste from the plastic processing industry. The test production has confirmed the excellent product quality of the carbide produced and the emission values conform to the statutory required limit values. Heavy metals and chlorine compounds are filtered out. Because they occur in very concentrated form in the filter dust, this produces very little waste that can be relatively cheaply disposed of in comparison with alternative recycling processes.
The new process has been developed by a southern German chemical company. In future, it plans to produce more than 10% of the carbon required for the carbide synthesis using plastic waste. A market survey that the company conducted in advance has shown that sufficient amounts of waste are already produced from plastic processing industries in the surrounding region.Press contact
About FIZ Karlsruhe
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.Our business areas:
Rüdiger Mack | idw
Atomic structure of ultrasound material not what anyone expected
21.02.2018 | North Carolina State University
Hidden talents: Converting heat into electricity with pencil and paper
20.02.2018 | Helmholtz-Zentrum Berlin für Materialien und Energie
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
21.02.2018 | Life Sciences
21.02.2018 | Life Sciences
21.02.2018 | Materials Sciences