Results 221 to 230 of about 80,588 (268)

Transition from Surface Treatment in a Batch Process to a Continuous Process

MRS Proceedings, 1998
AbstractFor the improvement of the adhesion to ethylene vinylacetate copolymer (EVA), poly (ethylene terephthalate) (PET) films were treated with low pressure plasmas in a laboratory batch reactor and in a pilot scale semi-continuous treatment system. The effects of the treatments were investigated by mechanical testing of the PET-EVA laminates, by XPS,
A Holländer, E. Royer, J. Behnisch
openaire   +1 more source

Continuous Time Representation Approach to Batch and Continuous Process Scheduling. 1. MINLP Formulation

Industrial & Engineering Chemistry Research, 1998
The problem of decision timing in the context of batch and continuous process scheduling is addressed in this paper. Representation of time in any scheduling model affects the number of integer variables and the convexity of the model. The usual procedure in batch and continuous process scheduling is to divide the scheduling interval into equal size ...
L. Mockus, G. V. Reklaitis
openaire   +1 more source

Continuous Time Representation Approach to Batch and Continuous Process Scheduling. 2. Computational Issues

Industrial & Engineering Chemistry Research, 1998
The first part of this series presented a general mathematical framework for describing a wide variety of scheduling problems arising in multiproduct/multipurpose batch and continuous chemical plants. The problem was formulated as a large mixed integer nonlinear programming model (MINLP).
L. Mockus, G. V. Reklaitis
openaire   +1 more source

Granulation development in batch-to-batch and continuous processes from a quality by design perspective

Journal of Drug Delivery Science and Technology, 2018
Abstract The process of quality by design (QbD) is of great importance in drug development. This review describes the design of experiments (DoE) method, which is an important component of QbD. DoE is predominantly divided into a screening phase and an optimization phase.
Seung Jin Ko, Ju-Hyun Lee, Chin-Yang Kang, Jun-Bom Park   +3 more
openaire   +1 more source

Application of Membrane Residue Curve Maps to Batch and Continuous Processes

Industrial & Engineering Chemistry Research, 2008
Membrane residue curve maps (M-RCMs) [Peters et al. Ind. Eng. Chem. Res. 2006. 45, 9080] plot the change, over time, of the retentate composition in a batch still.
Mark Peters, Shehzaad Kauchali, Diane Hildebrandt, David Glasser   +3 more
openaire   +1 more source

Framework to Batch Process Retrofit - A Continuous Improvement Approach

2014
To be competitive in the global market, companies need to ensure that they run more efficient than ever. This fact forces companies to apply continuous improvement actions in their plants which often involve a series of retrofitting activities that have to be conducted during the whole Life Cycle of their industrial process.
Tânia Pinto-Varela, Ana Carvalho, Ana Barbosa-Póvoa   +2 more
openaire   +1 more source

Efficient Transposition of the Sandmeyer Reaction from Batch to Continuous Process

Organic Process Research & Development, 2016
The transposition of Sandmeyer chlorination from a batch to a safe continuous-flow process was investigated. Our initial approach was to develop a cascade method using flow chemistry which involved the generation of a diazonium salt and its quenching with copper chloride.
D’attoma, Joseph, Camara, Titi, Brun, Pierre Louis, Robin, Yves, Bostyn, Stéphane, Buron, Frédéric, Routier, Sylvain   +6 more
openaire   +2 more sources

From Batch to Continuous Flow Synthesis in Enzymatic Process Towards Molnupiravir

Chemistry – An Asian Journal
AbstractMolnupiravir (1) is one among the limited therapeutic options for treating COVID‐19 infection and exhibits pan‐antiviral potency. Because of urgent demands during the COVID‐19 pandemic, a number of methods were developed to offer more efficient routes.
Siriwat Hongnak, Onanong Vorasin, Pornthip Aunbamrung, Saharat Techapanalai, Thanat Tiyasakulchai, Watcharin Sonwong, Nongluck Jaito, Chawanee Thongpanchang, Saowalak Whungsinsujarit, Onsiri Srikun, Nitipol Srimongkolpithak   +10 more
openaire   +2 more sources

Practical Assessment Methodology for Converting Fine Chemicals Processes from Batch to Continuous

Organic Process Research & Development, 2015
A practical methodology is proposed to assess the feasibility of converting a batch process into a continuous one. Simple guidelines are illustrated to facilitate decision making at different stages of the evaluation, in particular the swift first decision either to proceed with or kill the idea at the early evaluation stage to avoid wasted effort. The
Soo Khean Teoh, Chetankumar Rathi, Paul Sharratt   +2 more
openaire   +1 more source

The Microwave‐to‐Flow Paradigm: Translating High‐Temperature Batch Microwave Chemistry to Scalable Continuous‐Flow Processes

Chemistry – A European Journal, 2011
AbstractThe popularity of dedicated microwave reactors in many academic and industrial laboratories has produced a plethora of synthetic protocols that are based on this enabling technology. In the majority of examples, transformations that require several hours when performed using conventional heating under reflux conditions reach completion in a few
Toma N, Glasnov, C Oliver, Kappe
openaire   +2 more sources