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Advances in the slurry reactor technology of the anthraquinone process for H

Hongbo Li, Bo Zheng, Zhiyong Pan, Baoning Zong, Minghua Qiao

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 124-131 doi: 10.1007/s11705-017-1676-5

Abstract: This paper overviews the development of the anthraquinone auto-oxidation (AO) process for the productionThe characteristics and differences between the fixed-bed and fluidized-bed reactors for the AO processfluidized-bed reactor has many advantages, such as lower operation cost and catalyst consumption, less anthraquinone

Keywords： anthraquinone process     fixed-bed reactor     slurry-bed reactor     hydrogen peroxide    

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Multi-effect anthraquinone-based polyimide enclosed SnO/reduced graphene oxide composite as high-performance

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1231-1243 doi: 10.1007/s11705-023-2306-z

Abstract: dissolved in ester electrolytes and their carbonyls is not fully utilized during charging/discharging processHerein, the SnO2 enclosed with anthraquinone-based polyimide/reduced graphene oxide compositeCarbonyls from the anthraquinone unit provide fully available active sites to react with Li+anthraquinone-based polyimide and the synergistic effect of reducing graphene

Keywords： anthraquinone-based polyimide     multi-effect     tin dioxide     reduced graphene oxide     lithium-ion battery    

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A comparison of the catalytic hydrogenation of 2-amylanthraquinone and 2-ethylanthraquinone over a Pd/Al

Enxian Yuan, Xiangwei Ren, Li Wang, Wentao Zhao

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 177-184 doi: 10.1007/s11705-016-1604-0

Abstract: The hydrogenation of 2-ethylanthraquinone (eAQ), 2- -amylanthraquinone (taAQ) and their mixtures with molar ratios of 1:1 and 1:2 to the corresponding hydroquinones (eAQH and taAQH ) were studied over a Pd/Al O catalyst in a semi-batch slurry reactor at 60 °C and at 0.3 MPa. Compared to eAQ, TaAQ exhibited a significantly slower hydrogenation rate (about half) but had a higher maximum yield of H O and a smaller amount of degradation products. This can be ascribed to the longer and branched side chain in taAQ, which limits its accessibility to the Pd surface and its diffusion through the pores of the catalyst. Density functional theory calculations showed that it is more difficult for taAQ to adsorb onto a Pd (111) surface than for eAQ. The hydrogenation of the eAQ/taAQ mixtures had the slowest rates, lowest H O yields and the highest amounts of degradation products.

Keywords： hydrogenation     hydrogen peroxide     anthraquinone     Pd catalyst     AO process    

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Triggering the biocontrol of

Kandasamy SARAVANAKUMAR, Zhixiang LU, Hai XIA, Meng WANG, Jianan SUN, Shaoqing WANG, Qiang-qiang WANG, Yaqian LI, Jie CHEN

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 2,   Pages 271-279 doi: 10.15302/J-FASE-2018214

Abstract: The molecular docking results indicated that the combination of harzianopyridone, harzianolide and anthraquinone

Keywords： anthraquinone     Botrytis cinerea     harzianolide     harzianopyridone     molecular docking     Trichoderma    

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Applications of the crystallization process in the pharmaceutical industry

Sohrab ROHANI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 2-9 doi: 10.1007/s11705-009-0297-z

Abstract: applications of the crystallization technique in the pharmaceutical industry as a purification and separation processThe effect of process variables and solvent on the polymorphism and morphology of stavudine is discussed

Keywords： feedback     morphology     pulmonary     paracetamol     recognition    

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Degradation of refractory organics in concentrated leachate by the Fenton process: Central compositedesign for process optimization

Senem Yazici Guvenc, Gamze Varank

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1294-1

Abstract: the treatability of leachate nanofiltration concentrate through Fenton oxidation and optimization of processThe Fenton process improves the biodegradability of the leachate NF concentrate, increasing the BOD5/The operational cost of the process is calculated to be 0.238 €/g CODremoved.The results indicate that the Fenton oxidation process is an efficient and economical technology in improvement

Keywords： Concentrated leachate     Fenton oxidation     Central composite design     Biodegradability     Inert COD    

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Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 299-319 doi: 10.1007/s11465-019-0535-0

Abstract: By varying the process parameters such as beam intensity, energy density, spot diameter, and feed rateHigh precision polishing of surfaces can be done using laser process.This article gives a detailed overview of the laser polishing mechanism by explaining various processparameters briefly to get a better understanding about the entire polishing process.

Keywords： laser polishing     surface roughness     process parameters     mechanism    

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Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 232-242 doi: 10.1007/s11465-018-0469-y

Abstract: A central technology of intelligent machining—the cutting process online monitoring and optimizationIn this research, the cutting process online monitoring and optimization in jet engine impeller machiningResults show that intelligent tool path optimization and cutting process online monitoring are efficient

Keywords： intelligent machining     tool path strategy     process optimization     online monitoring    

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Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Zhiling Wu, Xianchun Tang, Hongbin Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1354-6

Abstract: Abstract • Seasonal and treatment-process variations in invertebrates in a DWTP were analyzed. • Thedisinfected clear water tanks. • Proportions of endogenous invertebrates increased along the treatment processdrinking water treatment plant between May 2015 and April 2016 and analyzed seasonal and treatment-processThe proportion of endogenous invertebrates gradually increased along the treatment process.

Keywords： Invertebrates     Drinking water     Seasonal variations     Treatment process    

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Special issue on “Green chemical process and intensification”

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 11,   Pages 1533-1535 doi: 10.1007/s11705-022-2263-y

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Sulfate digestion process for high purity TiO

T. A. LASHEEN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 155-160 doi: 10.1007/s11705-009-0005-z

Abstract: A titania slag product of Rosetta ilmenite assaying 72% TiO is treated by the sulfate process option

Keywords： titania     slag     sulfate process     pigment    

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Multiscale process systems engineering—analysis and design of chemical and energy systems from moleculardesign up to process optimization

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 137-140 doi: 10.1007/s11705-021-2135-x

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A stepwise process for carbon dioxide sequestration using magnesium silicates

Johan FAGERLUND, Experience NDUAGU, Ron ZEVENHOVEN, Inês ROMÃO,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 133-141 doi: 10.1007/s11705-009-0259-5

Abstract: kinetics; the reaction is slow and has to be accelerated in order to be used in an economically viable processthe reaction should provide the heat for the proceeding Mg(OH) production step, making the overall process

Keywords： carbonation reaction     reactor     producer     large-scale     process    

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Combined process of biofiltration and ozone oxidation as an advanced treatment process for wastewater

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1076-1083 doi: 10.1007/s11783-015-0770-5

Abstract: treated in a pilot plant for reclaimed water production through the denitrification biofilter (DNBF) processThe combined process demonstrated good removal performance of conventional pollutants, including concentrationsantibiotics and endocrine-disrupting chemicals) were also significantly removed during the proposed processAcute toxicity variations of the combined process were estimated by utilizing luminescent bacteria.The combined DNBF/O /BAF process is suitable for the advanced treatment of reclaimed water because it

Keywords： wastewater treatment     micropollutant removal     ozonation     biofiltration     toxicity    

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Interfacial induction and regulation for microscale crystallization process: a critical review

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 838-853 doi: 10.1007/s11705-021-2129-8

Abstract: In the heterogeneous induced nucleation process, the chemical and micro/nanostructural characteristicsshape and pore size, surface porosity, channels), in various microscale crystallization controls and process

Keywords： interfacial crystallization     heterogeneous nucleation     supersaturation     micro/nanostructure     process    

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Title Author Date Type Operation

Advances in the slurry reactor technology of the anthraquinone process for H

Hongbo Li, Bo Zheng, Zhiyong Pan, Baoning Zong, Minghua Qiao

Journal Article

Multi-effect anthraquinone-based polyimide enclosed SnO/reduced graphene oxide composite as high-performance

Journal Article

A comparison of the catalytic hydrogenation of 2-amylanthraquinone and 2-ethylanthraquinone over a Pd/Al

Enxian Yuan, Xiangwei Ren, Li Wang, Wentao Zhao

Journal Article

Triggering the biocontrol of

Kandasamy SARAVANAKUMAR, Zhixiang LU, Hai XIA, Meng WANG, Jianan SUN, Shaoqing WANG, Qiang-qiang WANG, Yaqian LI, Jie CHEN

Journal Article

Applications of the crystallization process in the pharmaceutical industry

Sohrab ROHANI

Journal Article

Degradation of refractory organics in concentrated leachate by the Fenton process: Central compositedesign for process optimization

Senem Yazici Guvenc, Gamze Varank

Journal Article

Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Journal Article

Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

Journal Article

Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Zhiling Wu, Xianchun Tang, Hongbin Chen

Journal Article

Special issue on “Green chemical process and intensification”

Journal Article

Sulfate digestion process for high purity TiO

T. A. LASHEEN

Journal Article

Multiscale process systems engineering—analysis and design of chemical and energy systems from moleculardesign up to process optimization

Journal Article

A stepwise process for carbon dioxide sequestration using magnesium silicates

Johan FAGERLUND, Experience NDUAGU, Ron ZEVENHOVEN, Inês ROMÃO,

Journal Article

Combined process of biofiltration and ozone oxidation as an advanced treatment process for wastewater

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG

Journal Article

Interfacial induction and regulation for microscale crystallization process: a critical review

Journal Article