Search | Engineering

Subscribe Submit

Home Journals Focus Videos Achievement Fronts About US 中文版

Resource Type

Journal Article 51

Conference Videos 1

Year

2023 2

2022 5

2021 2

2020 4

2017 4

2016 2

2014 2

2013 9

2012 1

2011 5

2010 6

2009 5

2008 2

2006 1

open ︾

Keywords

crystallization 15

morphology 4

melt crystallization 3

FBRM 2

crystallization kinetics 2

industrial crystallization 2

magnesium hydroxide 2

nucleation 2

particle size distribution 2

precipitation 2

supersaturation 2

5-(difluoromethoxy)-2-mercapto-1H-benzimidazole (DMB) 1

6-aminopenicillanic acid 1

Drosophila S2 cell 1

Artemisia annua 1

L-asparaginase II 1

isotactic polybutene-1 1

¹³C NMR 1

Ammonia removal and recovery 1

open ︾

Search scope:

排序： Display mode:

Progress in membrane distillation crystallization: Process models, crystallization control and innovative

Xiaobin Jiang, Linghan Tuo, Dapeng Lu, Baohong Hou, Wei Chen, Gaohong He

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 647-662 doi: 10.1007/s11705-017-1649-8

Abstract: Membrane distillation crystallization (MDC) is a promising hybrid separation process that has been appliedprogress has been made in MDC technologies including the promotion of nucleation and better control of crystallizationThis review focuses on the development of MDC process models and on crystallization control strategies

Keywords： membrane distillation crystallization mathematics model nucleation separation hybrid process

HTML PDF Collect

Effects of a structurally related substance on the crystallization of paracetamol

Ali SALEEMI, I.I. ONYEMELUKWE, Zoltan NAGY

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1, Pages 79-87 doi: 10.1007/s11705-013-1308-7

Abstract: Paracetamol (PCM) was crystallized from an isopropanol (IPA) solution containing various small amounts of metacetamol as an additive. The effect on the nucleation kinetics was studied by measuring the induction time to nucleation and the metastable zone width using focused beam reflectance measurements (FBRM) and attenuated total reflectance (ATR-UV/Vis) spectroscopy. Both the induction time and the metastable zone width were expressed as functions of the additive concentration. Small amounts of metacetamol (1–4 mol-%) were found to cause significant inhibition to the nucleation by extending both the induction time and the metastable zone width. A progressive change in the morphology of the paracetamol crystals from tabular to columnar habit was observed with increasing metacetamol concentration. The solvent also had a significant effect on the size of the paracetamol crystals as smaller crystals were obtained in IPA than in aqueous solution. The dissolution rate of paracetamol was improved by the incorporation of metacetamol with 4 mol-% having the most effect. A supersaturation control (SSC) approach was implemented for the PCM-IPA system with and without metacetamol in an attempt to control and obtain larger metacetamol-doped paracetamol crystals.

Keywords： acetaminophen metacetamol crystallization metastable zone width induction time supersaturation control

HTML PDF Collect

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: Microscale crystallization is at the frontier of chemical engineering, material science, and biochemicalstructure and cavities, pore shape and pore size, surface porosity, channels), in various microscale crystallizationfuture research and development directions are outlined to emphasize the importance of interfacial crystallization

Keywords： interfacial crystallization heterogeneous nucleation supersaturation micro/nanostructure process

HTML PDF Collect

The feasibility of coating by cooling crystallization on ibuprofen naked tablets

Fatima Mameri, Ouahiba Koutchoukali, Mohamed Bouhelassa, Anne Hartwig, Leila Nemdili, Joachim Ulrich

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2, Pages 211-219 doi: 10.1007/s11705-017-1619-1

Abstract: Recently, a new process of coating by cooling crystallization has been developed and applied on bisacodylpastilles obtained by melt crystallization.In this work, we investigated the feasibility of coating by cooling crystallization on ibuprofen “nakedbeen determined experimentally for the coating solution because they are essential factors for any crystallizationThe results show that naked tablet coating by cooling crystallization is feasible and can be applied

Keywords： coating solution crystallization ibuprofen tablets sucrose

HTML PDF Collect

Utilizing melt crystallization fundamentals in the development of a new tabletting technology

Ahmed ABOUZEID,Sandra PETERSEN,Joachim ULRICH

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3, Pages 346-352 doi: 10.1007/s11705-014-1443-9

Abstract: Increasing production effeciency and lowering costs are some of the many advantages melt crystallizationMelt crystallization is a purification (separation) process.

Keywords： phase separation melt crystallization tablets process optimization

HTML PDF Collect

Nucleic acid crystallization and X-ray crystallography facilitated by single selenium atom

Wen Zhang,Jack W. Szostak,Zhen Huang

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2, Pages 196-202 doi: 10.1007/s11705-016-1565-3

Abstract: However, the crystallization and phase determination are the major bottle-neck problems in crystallographystrategies to solve the phase determination problem, but also offer a potential strategy to explore crystallization

Keywords： selenium DNA RNA nucleic acid crystallization

HTML PDF Collect

Effect of polyethylene glycol on the crystallization, rheology and foamability of poly(lactic acid) containing

Frontiers of Chemical Science and Engineering doi: 10.1007/s11705-023-2342-8

Abstract: In this study, the rheological properties, crystallization and foaming behavior of poly(lactic acid)The isothermal crystallization kinetics results suggested that the polyamide 6 nanofibrils and polyethyleneglycol had a synergistic effect on accelerating poly(lactic acid) crystallization.With the polyethylene glycol, the crystallization half-time reduced from 103.6 to 62.2 s.

Keywords： poly(lactic acid) foaming microfibrillation rheological property crystallization

HTML PDF Collect

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: The applications of the crystallization technique in the pharmaceutical industry as a purification andexternal control in the form of feedback and real-time optimal control using cooling and antisolvent crystallizationTwo methods to prepare micron-sized drug particles, namely, micro-crystallization and polymer-coatedResolution of chloromandelic acid derivatives, a racemic compound, is achieved using direct crystallizationand diastereomeric salts crystallization.

Keywords： feedback morphology pulmonary paracetamol recognition

HTML PDF Collect

Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2, Pages 130-138 doi: 10.1007/s11705-013-1332-7

Abstract: Furthermore, the crystallization kinetics based on the population balance theory was studied to provide

Keywords： magnesium hydroxide precipitation micron-sized crystallization kinetics

HTML PDF Collect

Importance of emulsions in crystallization—applications for fat crystallization

Sandra PETERSEN, K. CHALEEPA, Joachim ULRICH

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1, Pages 43-48 doi: 10.1007/s11705-013-1309-6

Abstract: Emulsions and crystallization are two independent research topics which normally do not overlap althoughHere, the importance of emulsions in the field of fat crystallization is described.fractionation and phase change materials, emulsification can be applied as a tool to improve the fat crystallizationemulsification creates new application fields such as solid lipid nanoparticles in the area of fat crystallization

Keywords： emulsion fat crystallization phase change material emulsion fractionation emulsion solidification

HTML PDF Collect

Control of the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercapto

Yongli WANG, Shuyuan MA, Xiaodong Lü, Chuang XIE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4, Pages 423-431 doi: 10.1007/s11705-012-1211-7

Abstract: The spherical agglomeration of DMB during the reactive crystallization in a batch crystallizer was monitoredWe found that the low feeding rate of acetic acid, high crystallization temperature, low agitation rateIn addition, the crystallization process of DMB was optimized by a new control strategy of supersaturation

Keywords： 5-(difluoromethoxy)-2-mercapto-1H-benzimidazole (DMB) reactive crystallization agglomeration feeding rate crystallization temperature agitation rate

HTML PDF Collect

Modeling of specific structure crystallization coupling with dissolution

Yuanhui JI, Hongliang QIAN, Chang LIU, Xiaohua LU, Xin FENG, Xiaoyan JI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1, Pages 52-56 doi: 10.1007/s11705-009-0301-7

Abstract: In this paper, the research framework for specific structure crystallization modeling has been proposedin which four steps are required in order to investigate the rigorous crystallization modeling by thermodynamicsthe solution, the second is Solid-Liquid equilibrium, the third and fourth are the dissolution and crystallizationcomplex structure formation and microphase transition can be analyzed by combining the dissolution and crystallization

Keywords： structure crystallization activity coefficient reference KCl dissolution

HTML PDF Collect

Effects of sucrose crystallization and moisture migration on the structural changes of a coated intermediate

Tiancheng LI, Peng ZHOU, Theodore P. LABUZA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4, Pages 346-350 doi: 10.1007/s11705-009-0256-8

Abstract: The purpose of this study was to investigate whether moisture migration and sugar crystallization playmonitored with changes of water activity in different physical domains of samples during storage, while the crystallizationOur results suggested that both moisture loss and sucrose crystallization were mainly responsible forthe crusty intermediate inner layer, and the agglomerated matrix particles were the result of sucrose crystallization

Keywords： inner-layer agglomerated IMF moisture migration crystallization

HTML PDF Collect

Additives effects on crystallization and morphology in a novel caustic aluminate solution decomposition

Ying ZHANG, Shili ZHENG, Yifei ZHANG, Hongbin XU, Yi ZHANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 88-92 doi: 10.1007/s11705-009-0133-5

Abstract: In this research, effects of additives on the crystallization ratio, secondary particle size and morphologyThe crystallization ratios of sodium aluminate solution and crystal size of aluminum hydroxide, determinedHowever, the additives had little effects on the crystallization ratios.

Keywords： additive crystallization morphology caustic aluminate solution aluminium hydroxide

HTML PDF Collect

Permeability analysis and seepage process study on crystal layer in melt crystallization with fractal

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4, Pages 435-441 doi: 10.1007/s11705-011-1139-3

Abstract: In this paper a porous media seepage model was applied to analyze the permeability and study the seepage process of crystal pillar formed in the preparation of electronic grade phosphoric acid (EGPA). By inspecting the seeping process, the structure parameter of crystal pillar could be obtained. Two basic ideal models (perfectly separated model and perfectly connected model) were presented and a characterized factor was introduced to modify the model. A good simulation result was obtained which met the experiment result well. The relationship between and permeability were also discussed. The characterized factor showed potential application on optimizing process.

Keywords： melt crystallization porous media fractal permeability hyperpure material simulation

HTML PDF Collect

Title Author Date Type Operation

Progress in membrane distillation crystallization: Process models, crystallization control and innovative

Xiaobin Jiang, Linghan Tuo, Dapeng Lu, Baohong Hou, Wei Chen, Gaohong He

Journal Article

Effects of a structurally related substance on the crystallization of paracetamol

Ali SALEEMI, I.I. ONYEMELUKWE, Zoltan NAGY

Journal Article

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

Journal Article

The feasibility of coating by cooling crystallization on ibuprofen naked tablets

Fatima Mameri, Ouahiba Koutchoukali, Mohamed Bouhelassa, Anne Hartwig, Leila Nemdili, Joachim Ulrich

Journal Article

Utilizing melt crystallization fundamentals in the development of a new tabletting technology

Ahmed ABOUZEID,Sandra PETERSEN,Joachim ULRICH

Journal Article

Nucleic acid crystallization and X-ray crystallography facilitated by single selenium atom

Wen Zhang,Jack W. Szostak,Zhen Huang

Journal Article

Effect of polyethylene glycol on the crystallization, rheology and foamability of poly(lactic acid) containing

Journal Article

Applications of the crystallization process in the pharmaceutical industry

Sohrab ROHANI

Journal Article

Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Journal Article

Importance of emulsions in crystallization—applications for fat crystallization

Sandra PETERSEN, K. CHALEEPA, Joachim ULRICH

Journal Article

Control of the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercapto

Yongli WANG, Shuyuan MA, Xiaodong Lü, Chuang XIE

Journal Article

Modeling of specific structure crystallization coupling with dissolution

Yuanhui JI, Hongliang QIAN, Chang LIU, Xiaohua LU, Xin FENG, Xiaoyan JI,

Journal Article

Effects of sucrose crystallization and moisture migration on the structural changes of a coated intermediate

Tiancheng LI, Peng ZHOU, Theodore P. LABUZA

Journal Article

Additives effects on crystallization and morphology in a novel caustic aluminate solution decomposition

Ying ZHANG, Shili ZHENG, Yifei ZHANG, Hongbin XU, Yi ZHANG

Journal Article

Permeability analysis and seepage process study on crystal layer in melt crystallization with fractal

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Journal Article

京公网安备 11010502051620号京ICP备11030251号-2

关注我们