Scandium triflate-catalyzed Strecker-type reactions of aldehydes, amines and tributyltin cyanide in both organic and aqueous solutions. Achievement of complete recovery of the tin compounds toward environmentally-friendly chemical processes

1998 ◽  
pp. 981-982 ◽  
Author(s):  
Shū Kobayashi ◽  
Tsuyoshi Busujima
Keyword(s):  
Aqueous Solutions ◽  
Environmentally Friendly ◽  
Complete Recovery ◽  
Chemical Processes ◽  
Tin Compounds

Complete recovery of Eu from BaMgAl10O17:Eu2+ by alkaline fusion and its mechanism

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1113-1119 ◽  
Author(s):  
Shengen Zhang ◽  
Hu Liu ◽  
De'an Pan ◽  
Jianjun Tian ◽  
Yifan Liu ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Complete Recovery ◽  
Efficient Process ◽  
Alkaline Fusion

An environmentally friendly and efficient process for recycling waste phosphors has been developed.

Periodate Titration of Fe(II) in Acid Aqueous Solutions: An Environmentally Friendly Redox Reaction for the Undergraduate Laboratory

1997 ◽  
Vol 2 (4) ◽  
pp. 1-7 ◽  
Author(s):  
THOMAS G. DRUMMOND ◽  
WILLIAM L. LOCKHART ◽  
SPENCER J. SLATTERY ◽  
FAROOQ A. KHAN ◽  
ANDREW J. LEAVITT
Keyword(s):  
Aqueous Solutions ◽  
Redox Reaction ◽  
Environmentally Friendly ◽  
Undergraduate Laboratory

Green chemistry in China

2011 ◽  
Vol 83 (7) ◽  
pp. 1379-1390 ◽  
Author(s):  
Zheng Cui ◽  
Evan S. Beach ◽  
Paul T. Anastas
Keyword(s):  
Green Chemistry ◽  
Rational Design ◽  
Environmentally Friendly ◽  
Research Field ◽  
Academic Community ◽  
Chemical Processes ◽  
Plastics Additives

The principles of green chemistry provide a framework for rational design of environmentally friendly chemicals and chemical processes having reduced intrinsic hazard. In China, the academic community has made advances in key areas, developing new catalysts, solvents, polymers, plastics additives, and biomass transformations that add to the “toolbox” of alternative, more benign, and transformative technologies. Educational and outreach activities have also flourished in recent years. This perspective highlights examples of green chemistry breakthroughs in China, focusing on literature reports from 2008 to 2010. While we cannot hope to be comprehensive, we aim to provide examples that demonstrate the scope of the current research field.

An environmentally friendly batch bioadsorption study of the radionuclides 67Ga from aqueous solutions by fibrous tea waste

2010 ◽  
Vol 165 (2) ◽  
pp. 563-572 ◽  
Author(s):  
Hayrettin Eroglu ◽  
Erhan Varoglu ◽  
Sinan Yapıcı ◽  
Ali Sahın
Keyword(s):  
Aqueous Solutions ◽  
Environmentally Friendly ◽  
Tea Waste

scholarly journals Development of Environmentally Friendly Cellulose Derivative-Based Hydrogels for Contact Lenses Using a Radiation Crosslinking Technique

2021 ◽  
Vol 11 (19) ◽  
pp. 9168
Author(s):  
Akihiro Hiroki ◽  
Mitsumasa Taguchi
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Aqueous Solutions ◽  
Contact Lenses ◽  
Value Added ◽  
Environmentally Friendly ◽  
Soft Contact ◽  
Elongation At Break ◽  
Soft Contact Lenses ◽  
Polyethylene Glycol 1000

Although they have potential environmental pollution issues, soft contact lenses are value-added biodevices for medical use. Thus, it is important to reconsider starting materials and production methods to achieve sustainable development. In this study, hydrogels composed of hydroxypropyl cellulose (HPC) as an environmentally friendly material were produced by radiation and investigated for use in disposable soft contact lenses. HPC-based hydrogels with good mechanical properties and transparency were prepared by irradiation of electron beams on highly concentrated aqueous solutions containing HPC, polyethylene glycol #1000 dimethacrylate (23G), and 2-hydroxyethyl methacrylate (HEMA). The addition of 23G to HPC aqueous solutions resulted in an increase in the gel fraction as well as improved mechanical properties, such as tensile strength and elongation at break. The tensile strength and the elongation at break of HPC/HEMA/23G hydrogel obtained by the further addition of HEMA with HPC/23G aqueous solutions exhibited 0.2 MPa and 124%, which were approximately 2.0 and 1.8 times larger than these of the pure HPC hydrogel, respectively. The evaluation of the properties of the HPC/HEMA/23G hydrogel demonstrated its potential as a soft contact material with improved mechanical properties.

Synthesis of copper oxide nanowires and nanoporous copper via environmentally friendly transformation of bulk copper–calcium alloys

2018 ◽  
Vol 54 (43) ◽  
pp. 5446-5449
Author(s):  
X. Zhang ◽  
K. Turcheniuk ◽  
B. Zusmann ◽  
J. Benson ◽  
S. Nelson ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Copper Oxide ◽  
Environmentally Friendly ◽  
Oxide Nanowires ◽  
Nanoporous Copper ◽  
One Step ◽  
Cu Nanostructures

In this work, we report a novel, one-step, inexpensive and environmentally friendly synthesis of Cu nanostructures by means of chemical de-alloying of bulk Cu–Ca alloys in aqueous solutions.

scholarly journals STUDIES ON NONEQUILIBRIUM PHYSICO-CHEMICAL PROCESSES IN THE SYSTEM "FUEL CONTAINING MASSES - AQUEOUS SOLUTIONS OF RADIOACTIVE ELEMENTS"

1997 ◽  
pp. 63 ◽  
Author(s):  
Yukhnovskii ◽  
Tokarchuk ◽  
Ignatyuk ◽  
Kobryn ◽  
Omelyan ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Chemical Processes ◽  
Radioactive Elements ◽  
Physico Chemical
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