نتایج جستجو برای: chemical recycling

تعداد نتایج: 405537  

Journal: :Chemie Ingenieur Technik 2023

The plastic crisis is a key driver for chemical recycling (CR), with focus placed on plastics circularity via Plastics-to-Plastics. This neglects its potential in enabling wide range of carbon-containing waste and hinders critical discussion broader contributions to decarbonizing the sector. To address this gap, four CR routes their integration conventional treatment production value chains are...

2016
Wim Denissen Johan M Winne Filip E Du Prez

Most covalent adaptable networks give highly interesting properties for material processing such as reshaping, recycling and repairing. Classical thermally reversible chemical cross-links allow for a heat-triggered switch between materials that behave as insoluble cured resins, and liquid thermoplastic materials, through a fully reversible sol-gel transition. In 2011, a new class of materials, ...

2004
I Bolanča Z Bolanča

The efficiency of ink separation in the process of waste paper recycling depends among other things on the ink properties, kind of the substrate, the printing techniques and the printing conditions. Chemical deinking flotation does not efficiently remove water based flexographic inks, UV ink and varnish, ElectroInk and some toners from digital printed paper. The use of enzymes could be an alter...

2017
Alyse D. Portnoff Cuihua Gao M. Jack Borrok Xizhe Gao Changshou Gao G. Jonah Rainey

Antibody therapeutics offer effective treatment options for a broad range of diseases. One of the greatest benefits of antibody therapeutics is their extraordinarily long serum half-life, allowing infrequent dosing with long-lasting effects. A characteristic of antibodies that drives long half-life is the ability to interact with the recycling receptor, FcRn, in a pH-dependent manner. The benef...

2003
D. BRAUN

Despite all the technical and economic problems and the public discussions on the environmental dangers and hazards of chlorine chemistry, poly(vinyl chloride) (PVC) is the second most produced plastic (with a worldwide capacity of about 31 million tons), placing after polyolefins and before styrene polymers. Presently, PVC production worldwide is growing at a rate of more than 4% per year. The...

Journal: :international journal of nano dimension 0
elaheh esmaeili department of chemical engineering, birjand university of technology, birjand, p.o. box 97175/569-212, iran. fatemeh deymeh department of chemical engineering, birjand university of technology, birjand, p.o. box 97175/569-212, iran. seyyed amin rounaghi department of materials engineering, birjand university of technology, birjand, p.o. box 97175/569-295, iran.

recently, the demands for the production of many different types of plastic wastes are greatly growing that subsequently, lead to the serious challenges in environmental considerations. since, these materials are rarely resolved by microorganisms, hence, their recycling to the useful materials is crucial. in the present study, we used a solution electrospinning technique to synthesize nano/micr...

Journal: :international journal of environmental research 2013
y.j. kim d.h. kang m.g. kim t.i. qureshi

this study was conducted to identify emission characteristics of certain hazardous substancescontained in the plastic of used home electrical and electronic appliances keeping in view compliance with therestriction of hazardous substances (rohs) directive and to estimate the possibility of safe recyclingpractices. according to the results, the concentration of cadmium, lead, mercury and chromiu...

Journal: :int. journal of mining & geo-engineering 2012
sajjad jannesar malakooti amin joudaki sied ziaedin shafaei mohammad noaparast soheila aslani

in this study, the possibility of producing coal with less than 11% ash from tailings of flotation process was investigated. the effect of six flotation parameters: collector type, collector consumption, frother type, frother consumption, pulp density and mixing rate were studied on a sample from a tailing dam. a software based experimental design approach (dx7) was applied to determine and mod...

2015
Julide Oner Burak Sengoz

The asphalt paving industries are faced with two major problems. These two important challenges are generated with an increase in demand for environmentally friendly paving mixtures and the problem of rapidly rising raw materials. Recycling of reclaimed asphalt pavement (RAP) is a critical necessity to save precious aggregates and reduce the use of costly bitumen. Warm Mix Asphalt (WMA) technol...

Journal: :Journal of Institute of Science and Technology 2021

Inefficient solid waste management of plastics and polymeric materials is one the global challenges leading to environmental deterioration. This challenge has brought alarming concern minimize volume such wastes released into environment. The proposes a solution existing problems some extent by reuse, recycling, efficient conversion alternative application. Chemical thermo-mechanical plastic en...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید