A novel electrochemically enhanced homogeneous PMS-heterogeneous CoFe2O4 synergistic catalysis for the efficient removal of levofloxacin

2021 ◽  
pp. 127651
Author(s):  
Qianyu Zhang ◽  
Xiaoqin Sun ◽  
Yuan Dang ◽  
Jun-Jie Zhu ◽  
Yuan Zhao ◽  
...  
Keyword(s):  
Efficient Removal ◽  
Synergistic Catalysis

Regio-, Stereo- and Enantioselective α-Addition of Carbonyl Nucleo-philes to Allenamides Catalyzed by a Synergistic Copper/Enamine System

2020 ◽  
Author(s):  
Rémi Blieck ◽  
Sebastien Lemouzy ◽  
Marc Taillefer ◽  
Florian Monnier
Keyword(s):  
Catalytic System ◽  
Secondary Amine ◽  
Primary Amine ◽  
Synergistic Catalysis ◽  
Enantioselective Addition ◽  
Amine Catalysts

A dual copper/enamine catalytic system is found to enable an intermolecular enantioselective α-addition of various carbonyl nucleophiles to allenamides. Secondary amine catalysts allowed the highly enantioselective addition of aldehydes, while using primary amine catalysts led to the enantioselective addition of ketoester nucleophiles. The process was found to be highly regio-, stereo- and enantio-selective and represented the first allene hydrofunctionalization using an synergistic catalysis involving copper

AN NOVEL UCSB-ANR INTEGRATED SYSTEM FOR EFFICIENT REMOVAL OF ORGANIC MATTER AND AMMONIA NITROGEN FROM SWINE WASTEWATER

2016 ◽  
Vol 15 (10) ◽  
pp. 2261-2266
Author(s):  
Xiaowei Li ◽  
Jie Zhang ◽  
Weiwei Zhao ◽  
Xuewen Yi ◽  
Wei Lin ◽  
...  
Keyword(s):  
Organic Matter ◽  
Ammonia Nitrogen ◽  
Integrated System ◽  
Swine Wastewater ◽  
Efficient Removal

Studying dispersed and rheological properties of hydrocarbon-containing acid emulsions and their efficiency in removing asphalt-resin-paraffin deposits

2020 ◽  
pp. 128-139
Author(s):  
M. Yu. Shumakher ◽  
V. V. Konovalov ◽  
A. P. Melnikov
Keyword(s):  
Aqueous Solution ◽  
Hydrochloric Acid ◽  
Rheological Properties ◽  
Reaction Rate ◽  
Experimental Studies ◽  
Efficient Removal ◽  
Reservoir Properties ◽  
Hydrocarbon Solvents ◽  
Formation Zone ◽  
Effect Of The Composition

Currently, the treatment of the bottomhole formation zone with acidic compositions is one of the most common methods to intensify the oil inflow. The use of various modified acid compositions increases the efficiency of acid treatments on the bottomhole formation zone. Acid compositions, including those containing hydrocarbon solvents, which contribute to more efficient removal of organic colmatants, affect the reaction rate of the reagent with the rock and processing equipment, change the reservoir properties, etc.The article presents the results of experimental studies, which are aimed at establishing the effect of the composition of hydrocarbon-containing acidic emulsions consisting of an aqueous solution of hydrochloric acid, toluene and Neonol AF 9-10 on their dispersed and rheological properties, as well as their efficiency in removing paraffin deposits.

scholarly journals Synthesis and evaluation of Ca-doped ferrihydrite as a novel adsorbent for the efficient removal of fluoride

2021 ◽  
Author(s):  
Khalil Ahmad ◽  
Izaz Ali Shah ◽  
Sharafat Ali ◽  
Muhammad Tariq Khan ◽  
Muhammad Bilal Ahmed Qureshi ◽  
...  
Keyword(s):  
Efficient Removal
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