Study on the Floatation Effect of ZFC Agent for Difficult Slime

2011 ◽  
Vol 361-363 ◽  
pp. 316-319
Author(s):  
Wei Wei Xie ◽  
Lan Hong He ◽  
Jia Wang ◽  
Xiao Wei He
Keyword(s):  
High Selectivity ◽  
Diesel Oil ◽  
Good Stability ◽  
Excellent Performance ◽  
Coal Flotation ◽  
Environmental Friendly ◽  
Flotation Collector

This paper introduced a newly developed coal flotation collector ZFC and its flotation characteristics for Shanxi three different coal samples. ZFC was an emulsion composed by 27% diesel oil, 70% water and 3% homemade surfactant PGS. The surfactant PGS was synthesized with environmental friendly reproducible oil and several surfactants. The flotation results showed that the ZFC had the characteristics of excellent performance, high selectivity and good stability. ZFC could promote the dispersion of diesel oil in the slurry, so that the efficiency of floatation was improved and about 70% diesel oil was saved.

Research on Environmental Friendly Floatation Agent

2011 ◽  
Vol 421 ◽  
pp. 810-814
Author(s):  
Wei Wei Xie ◽  
Xiao Wei He ◽  
Kai Wu Huang ◽  
Yu Ran Zhang ◽  
Cong Kun Liu
Keyword(s):  
High Selectivity ◽  
Diesel Oil ◽  
Ash Content ◽  
Good Stability ◽  
Excellent Performance ◽  
Coal Flotation ◽  
Material Recovery ◽  
Environmental Friendly ◽  
Oil Water ◽  
Flotation Collector

A newly developed coal flotation collector EDO and its flotation characteristics for three Shanxi different coals were introduced in this paper. EDO was an emulsion composed by diesel oil, water and independent development surfactant PGS. Compared flotation experiments show that, at the same dosage, EDO gives 2~5% combustile material recovery promotion than typical collector with only a slightly ash content increment, but saving over 70% diesel oil, and improves the floatation speed. EDO could promote the dispersion of diesel oil in the slurry, so that the efficiency of floatation was improved. The flotation results showed that the EDO had the characteristics of excellent performance, high selectivity and good stability.

Eco-Friendly Synthesis of Sulphonic Acid Oxime Esters Catalyzed by 2-(1H-Benzotriazole-1-yl)-1,1,3,3-Tetramethyluronium Tetrafluoroborate

2014 ◽  
Vol 525 ◽  
pp. 93-96
Author(s):  
Wei Shi ◽  
Ji Ming Zhang ◽  
Jian Hua Zhou ◽  
Jian Hua Zhou ◽  
Song Song Ding
Keyword(s):  
High Selectivity ◽  
Sulphonic Acid ◽  
Present Approach ◽  
High Yield ◽  
Facile Synthesis ◽  
Reaction Duration ◽  
Mild Conditions ◽  
Environmental Friendly

Herein we describle a facile synthesis of sulphonic acid oxime esters in acetonitrile from the corresponding sulphonic acids and oximes catalyzed by the environmental friendly 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (TBTU) in the presence of triethylamine (TEA) under mild conditions. The present approach offers the advantages of a clean reaction, simple methodology, employing readily available catalyst, short reaction duration, high selectivity and high yield.

Green synthesis of 3D SnO2/graphene aerogels and their application in lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (50) ◽  
pp. 39746-39751 ◽  
Author(s):  
Chen Gong ◽  
Yongquan Zhang ◽  
Mingguang Yao ◽  
Yingjin Wei ◽  
Quanjun Li ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Lithium Ion ◽  
Excellent Performance ◽  
Graphene Aerogels ◽  
Environmental Friendly

3D SnO2/GAs were constructed by a simple, facile and environmental friendly process, and show excellent performance when used as anode material in lithium ion batteries.

scholarly journals Transparent Flexible IGZO Thin Film Transistors Fabricated at Room Temperature

Membranes ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 29
Author(s):  
Honglong Ning ◽  
Xuan Zeng ◽  
Hongke Zhang ◽  
Xu Zhang ◽  
Rihui Yao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Room Temperature ◽  
Good Stability ◽  
Negative Bias ◽  
Bending Stress ◽  
Excellent Performance ◽  
Flexible Display ◽  
Bias Stress ◽  
Device Applications

Flexible and fully transparent thin film transistors (TFT) were fabricated via room temperature processes. The fabricated TFT on the PEN exhibited excellent performance, including a saturation mobility (μsat) of 7.9 cm2/V·s, an Ion/Ioff ratio of 4.58 × 106, a subthreshold swing (SS) of 0.248 V/dec, a transparency of 87.8% at 550 nm, as well as relatively good stability under negative bias stress (NBS) and bending stress, which shows great potential in smart, portable flexible display, and wearable device applications.

DABCO as a Base and an Organocatalyst in Organic Synthesis: A Review

2020 ◽  
Vol 7 (2) ◽  
pp. 146-162
Author(s):  
Dinesh K. Jangid
Keyword(s):  
Organic Synthesis ◽  
Ring Opening ◽  
High Selectivity ◽  
Solid Catalyst ◽  
Cycloaddition Reactions ◽  
Coupling Reactions ◽  
Henry Reaction ◽  
Environmental Friendly ◽  
Ring Opening Reactions ◽  
Catalytic Applications

One of the organocatalysts 1,4-diazabicyclo[2.2.2]octane (DABCO) is an excellent solid catalyst in a number of reactions. It is also a good nucleophile and a base in numerous reactions for the synthesis of heterocycles. DABCO catalyzes many reactions like cycloaddition reactions, coupling reactions, Baylis-Hillman reaction, Henry reaction, ring opening reactions, etc. One more advanced feature of these reactions is that they proceed through environmental friendly pathway. DABCO has more advantages than other organic catalysts because it is an inexpensive, non.toxic base, an ecofriendly and a highly reactive catalyst for building of organic frameworks, which produce the desired products in excellent yields with high selectivity. Many catalytic applications of DABCO have been reported for the synthesis of an organic framework which has been discussed in this review.

A selective and stable Fe/TiO2 catalyst for selective hydrogenation of butadiene in alkene-rich stream

2021 ◽  
Author(s):  
Zhao Wang ◽  
Laura Santander de Soto ◽  
Christophe Méthivier ◽  
Sandra Casale ◽  
Catherine Louis ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
High Selectivity ◽  
Good Stability ◽  
Tio2 Catalyst

The Fe/TiO2 catalyst shows high selectivity to alkenes at high butadiene conversion and good stability at 175 °C.

Effects of magnetic pretreatment on diesel oil properties and its relationship to low rank coal flotation

2017 ◽  
Vol 53 (3) ◽  
pp. 527-534
Author(s):  
Changlong Zheng ◽  
Haijun Zhang ◽  
Yi Ru ◽  
Ming Xu
Keyword(s):  
Diesel Oil ◽  
Low Rank ◽  
Low Rank Coal ◽  
Coal Flotation

Ultra-Bright 2D Assembled Copper Nanoclusters: Fluorescence Mechanism Exploration and LED Application

2020 ◽  
Vol 996 ◽  
pp. 20-25
Author(s):  
Lin Ai ◽  
Min Tang ◽  
Ji Li ◽  
Hsiao Hsien Chen ◽  
Hong Meng
Keyword(s):  
Low Cost ◽  
Metal Nanoclusters ◽  
Synthetic Route ◽  
Excellent Performance ◽  
Copper Nanoclusters ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Environmental Friendly ◽  
Capping Ligands ◽  
Fluorescent Nanomaterials

Novel fluorescent nanomaterials have attracted enormous interests in the applications of illumination and display besides the traditional organic fluorophors. As potential alternatives, the environmental friendly fluorescent ultra-small organic-inorganic hybrid metal nanoclusters (size < 2 nm) is a series of powerful competitors used in illuminating field, on account of the non-poisonous, large amount of storage in earth, simple synthetic route, and relative low cost. The most important one, facile regulation of the fluorescence intensity and emission colors makes metal nanoclusters more attractive candidates for illumination application. Here, through ingeniously designing the structures of capping ligands, the highly bright copper nanoclusters are obtained, which further assemble into 2D ribbons with fluorescence quantum efficiency ascending to 36.4%. Last, the light emitting diodes with excellent performance are constructed, the emission wavelength locates at 650 nm in red region, which is suitable for plant illumination.

Sign in / Sign up

Export Citation Format

Share Document