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Difference between revisions of "Crystallisation and precipitation"
Crystallisation and precipitation (view source)
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<onlyinclude>'''Crystallisation''' is the process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas. Attributes of the resulting crystal depend largely on factors such as temperature, air pressure, and in the case of liquid crystals, time of fluid evaporation.</onlyinclude> | {{Infobox technology}}<onlyinclude>'''Crystallisation''' is the process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas. Attributes of the resulting crystal depend largely on factors such as temperature, air pressure, and in the case of liquid crystals, time of fluid evaporation.</onlyinclude> | ||
==Feedstock== | |||
=== Origin and composition === | |||
=== Pre-treatment === | |||
==Process and technologies== | ==Process and technologies== | ||
Crystallization occurs in three major steps. The first is nucleation, the appearance of a crystalline phase from either a supercooled liquid or a supersaturated solvent. The second step is known as crystal growth, which is the increase in the size of particles and leads to a crystal state. An important feature of this step is that loose particles form layers at the crystal's surface and lodge themselves into open inconsistencies such as pores, cracks, etc. | Crystallization occurs in three major steps. The first is nucleation, the appearance of a crystalline phase from either a supercooled liquid or a supersaturated solvent. The second step is known as crystal growth, which is the increase in the size of particles and leads to a crystal state. An important feature of this step is that loose particles form layers at the crystal's surface and lodge themselves into open inconsistencies such as pores, cracks, etc. | ||
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Crystallization is also a chemical solid–liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs. In chemical engineering, crystallization occurs in a crystallizer. Crystallization is therefore related to precipitation, although the result is not amorphous or disordered, but a crystal. | Crystallization is also a chemical solid–liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs. In chemical engineering, crystallization occurs in a crystallizer. Crystallization is therefore related to precipitation, although the result is not amorphous or disordered, but a crystal. | ||
== | ==Products== | ||
=== Post-treatment === | |||
==Technology providers== | ==Technology providers== | ||
===ABC=== | ===ABC=== | ||
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| Other = Unknown | | Other = Unknown | ||
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== Open access pilot and demo facility providers == | |||
[https://biopilots4u.eu/database?field_technology_area_data_target_id=106&field_technology_area_target_id%5B75%5D=75&field_contact_address_value_country_code=All&field_scale_value=All&combine=&combine_1= Pilots4U Database] | |||
==Patents== | ==Patents== | ||
==References== | ==References== | ||
[[Category:Hybrid processing]] | [[Category:Hybrid processing]] | ||