Controlling the Size of Taurine Crystals in the Cooling Crystallization Process

2013 ◽  
Vol 52 (37) ◽  
pp. 13449-13458 ◽  
Author(s):  
Ruohui Lin ◽  
Meng W. Woo ◽  
Cordelia Selomulya ◽  
Jianping Lu ◽  
Xiao Dong Chen
Keyword(s):  
Crystallization Process ◽  
Cooling Crystallization

Particle engineering by optimization for the unseeded batch cooling crystallization of l-asparagine monohydrate

CrystEngComm ◽  
2017 ◽  
Vol 19 (42) ◽  
pp. 6373-6382 ◽  
Author(s):  
Stutee Bhoi ◽  
Maheswata Lenka ◽  
Debasis Sarkar
Keyword(s):  
Crystallization Process ◽  
Optimization Approach ◽  
Temperature Profiles ◽  
Particle Engineering ◽  
Model Based ◽  
Cooling Crystallization ◽  
Asparagine Monohydrate ◽  
Batch Cooling

A model-based optimization approach is proposed to obtain temperature profiles to achieve the target CSD in a batch cooling crystallization process.

scholarly journals Formalized methodology for the separation of three component electrolytic systems: Partial separation of the system

2013 ◽  
Vol 67 (4) ◽  
pp. 569-583
Author(s):  
Midhat Suljkanovic ◽  
Milovan Jotanovic ◽  
Elvis Ahmetovic ◽  
Goran Tadic ◽  
Nidret Ibric
Keyword(s):  
Isothermal Crystallization ◽  
Crystallization Process ◽  
Sodium Sulphate ◽  
Salt Crystallization ◽  
Feed System ◽  
The Third ◽  
Equilibrium Processes ◽  
Cooling Crystallization ◽  
Process Simulator

This work presents a formalized methodology for salt's separation from three component electrolytic systems. The methodology is based on the multi-variant modelling block of a generalized crystallization process, with options for simulating the boundary conditions of feasible equilibrium processes and the elements of crystallization techniques. The following techniques are considered: cooling crystallization, adiabatic evaporative-cooling crystallization, salt-out crystallization, isothermal crystallization, and a combination of the mentioned techniques. The multi-variant options of the crystallization module are based on different variable sets with assigned values for solving mathematical models of generalized crystallization processes. The first level of the methodology begins with the determination of salt crystallization paths from a hypothetical electrolytic AX-BX-H2O system, following by an examination of salt-cooling crystallization possibilities. The second level determines feasible processes by the communication of a feed-system with the environment through a stream of evaporated water, or introduced water with introduced crystallized BX salt. The third level determines the value intervals of the variables for feasible processes. The methodological logic and possibilities for the created process simulator are demonstrated on examples of sodium sulphate separation from the NaCl-Na2SO4-H2O system, using different salt concentrations within the feed system.

Dynamic Optimization of a Batch Cooling Crystallization Process

1999 ◽  
Vol 38 (4) ◽  
pp. 1469-1477 ◽  
Author(s):  
Yi-dong Lang ◽  
Arturo M. Cervantes ◽  
Lorenz T. Biegler
Keyword(s):  
Dynamic Optimization ◽  
Crystallization Process ◽  
Cooling Crystallization ◽  
Batch Cooling

scholarly journals Polymorph Transformation in Paracetamol Monitored by In-line NIR Spectroscopy During a Cooling Crystallization Process

2011 ◽  
Vol 12 (2) ◽  
pp. 764-770 ◽  
Author(s):  
In-Chun Wang ◽  
Min-Jeong Lee ◽  
Da-Young Seo ◽  
Hea-Eun Lee ◽  
Yongsun Choi ◽  
...  
Keyword(s):  
Crystallization Process ◽  
Nir Spectroscopy ◽  
Cooling Crystallization ◽  
Polymorph Transformation

Continuous Generation of Millimeter-Sized Glycine Crystals in Non-Seeded Millifluidic Slug Flow

Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 412 ◽  
Author(s):  
Mingyao Mou ◽  
Huayu Li ◽  
Bing-Shiou Yang ◽  
Mo Jiang
Keyword(s):  
Slug Flow ◽  
Crystallization Process ◽  
Secondary Nucleation ◽  
Flow Rates ◽  
Aspect Ratios ◽  
Cooling Crystallization ◽  
Primary Nucleation ◽  
Continuous Generation ◽  
Inner Diameter ◽  
Air Streams

Millimeter-sized α-glycine crystals were generated from continuous non-seeded cooling crystallization in slug flow. The crystallization process is composed of three steps in sequence: slug formation, crash-cooling nucleation, and growth. Stable uniform slugs of three different aspect ratios (slug length/tubing inner diameter) were formed, by adjusting the flow rates of both the solution and air streams. Besides supersaturation, the slug aspect ratio can also affect primary nucleation outcome. Stable slug flow can accommodate a relative supersaturation (C/C*) of up to 1.5 without secondary nucleation. Large glycine crystals can grow to millimeter size within 10 min, inside millimeter-sized slugs without reducing the slug quality.

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