An evaluation of the Johanson model for roller compaction process development for a high dose API

Moroney, Kevin M.; Cronin, Patrick; Adeleye, Opeyemi A.; Schaller, Barbara; Howard, Matthew A.; Castro-Dominguez, Bernardo; Ramachandran, Rohit; Walker, Gavin

doi:10.1016/j.powtec.2020.02.058

Cited by 12 publications

(2 citation statements)

References 49 publications

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“…These characteristics are used in other mathematical models of the compaction (briquetting) process in the roller presses. Despite its shortcomings, and above all, the model describing only a simplified strain state, much modern work is developed based on Johanson’s method [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Modelling of the Fine-Grained Materials Briquetting Process in a Roller Press with the Discrete Element Method

2022

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By using the Altair® EDEM™ software, which implements the discrete element method, modelling and further study of the processes occurring in the roller press’s deformation area were carried out. It was shown that the discrete element method makes it possible to accurately describe the phenomena occurring in the area of roller press deformation compared with the finite element method. Models of material compaction in a roller press are developed using calcium hydroxide (slaked lime) and copper ore concentrate. The developed model makes it possible to determine the process’s energy parameters and the material’s compaction characteristics, taking into account the characteristics of its constituent particles. It was shown that discrete element modelling could be used effectively to create roller presses that provide rational characteristics of the briquetting process, taking into account the properties of the material being briquetted and the operating modes of the equipment. The results of the studies provided the basis for the applicability of the development of the discrete element method for describing the phenomena occurring in roller presses and accelerating the design of press equipment and briquetting technological processes.

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Section: Introductionmentioning

confidence: 99%

Modelling of the Fine-Grained Materials Briquetting Process in a Roller Press with the Discrete Element Method

2022

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“…The granular material is described by the internal friction angle, the wall friction angle and the compressibility constant (K). Many authors developed the model further and made modifications 4,9,18,21,[28][29][30] . The original model and the modifications have merits.…”

Section: General Considerationsmentioning

confidence: 99%

Improving Process Understanding in Roll Compaction

Kleinebudde

2022

Journal of Pharmaceutical Sciences

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Identification of Cause–Effect Relationships between Process Parameters and the Film Formation in the Semidry Electrode Production for Lithium‐Ion Batteries

Leeb,

Schwarz,

Daub

2024

Energy Tech

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Conventional electrode production for lithium‐ion batteries has high energy and plant space demand, due to the high solvent content of the slurry to be processed by slot die or doctor blade coating. By using the semidry electrode production, the solvent content is reduced by more than 50% compared to the conventional electrode production, decreasing energy demand and drying length. Regarding technology readiness level, the semidry electrode production is on the pilot scale, as the basic principles have been shown. However, many unknown cause–effect correlations exist between the process parameters and the product properties. This study aims to analyze process parameter variations and their influence on the geometric, electrochemical, and mechanical properties of the electrode. An experimental design is utilized to obtain statistically relevant conclusions. It is found that the first calender gap and the roller speed influence the mass loading and the porosity of the electrode. The roller speed significantly influences the ionic resistance within the electrode, which may be attributed to the used release foil.

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An evaluation of the Johanson model for roller compaction process development for a high dose API

Cited by 12 publications

References 49 publications

Modelling of the Fine-Grained Materials Briquetting Process in a Roller Press with the Discrete Element Method

Modelling of the Fine-Grained Materials Briquetting Process in a Roller Press with the Discrete Element Method

Improving Process Understanding in Roll Compaction

Identification of Cause–Effect Relationships between Process Parameters and the Film Formation in the Semidry Electrode Production for Lithium‐Ion Batteries

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