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JAPAN TAPPI JOURNAL, 1997
Wastepaper reclaimed for recycling can be classified to two categories. One, to which newsprint and magazine waste belong, contains lignin. The other, which is mostly fine paper waste, consists of wood free chemical pulp. The former is bleached with peroxides and reducing agents, and the latter is done by chlorine chemicals.Recently, wood containing ...
openaire +2 more sources

An acid-free process to prepare battery grade nickel and cobalt sulfates from complex resources

Nature Communications
Nickel sulfate is a critical compound for lithium-ion batteries, mainly prepared from nickel sulfide concentrate (NSC). Typically, high-temperature smelting or high-pressure leaching is required to achieve high extraction rates for Ni and Co.
Qing Zhang +8 more
doaj +1 more source

Plastic waste recycling: an overview of the mechanical, chemical, and thermal technologies

Journal of Engineering and Applied Science
With the increasing production and consumption of plastics all over the world, polymer recycling techniques have been extensively studied in the literature. However, polymer recycling still faces some challenges that can hinder its optimal efficiency and
Ricardo Júnior de Oliveira Silva +2 more
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How Much Can Chemical Recycling Contribute to Plastic Waste Recycling in Europe? An Assessment Using Material Flow Analysis Modeling