IES950071A2 - Process for drying a material from solution - Google Patents

Process for drying a material from solution

Info

Publication number
IES950071A2
IES950071A2 IES950071A IES950071A2 IE S950071 A2 IES950071 A2 IE S950071A2 IE S950071 A IES950071 A IE S950071A IE S950071 A2 IES950071 A2 IE S950071A2
Authority
IE
Ireland
Prior art keywords
solution
vacuum
chamber
frozen
spray
Prior art date
Application number
Inventor
Michael Anthony Folan
Original Assignee
Kinerton Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kinerton Ltd filed Critical Kinerton Ltd
Priority to IES950071 priority Critical patent/IES64140B2/en
Publication of IES950071A2 publication Critical patent/IES950071A2/en
Publication of IES64140B2 publication Critical patent/IES64140B2/en

Links

Landscapes

  • Drying Of Solid Materials (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Medicinal Preparation (AREA)

Abstract

A process for obtaining a solid or semi-solid material by drying a solution thereof which comprises expanding a spray of the solution, which has been supercooled, into a vacuum and collecting the frozen droplets of spray on a surface which is sufficiently cold to cause the frozen solvent to sublime from the frozen droplets at the vacuum pressure, thereby producing particles whose size can be controlled by choice of droplet size. Elevated temperatures or milling stages are not required, so the process can be carried out using an apparatus comprising a vacuum chamber (11) having refrigerated walls, a vacuum pump (17) and a condenser (18). The solution is sprayed into the chamber via a nozzle (16) and the frozen droplets are collected on the walls of the chamber (11) and sublimation takes place therefrom.
IES950071 1994-02-09 1995-01-31 Process for drying a material from solution IES64140B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IES950071 IES64140B2 (en) 1994-02-09 1995-01-31 Process for drying a material from solution

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE940116 1994-02-09
IES950071 IES64140B2 (en) 1994-02-09 1995-01-31 Process for drying a material from solution

Publications (2)

Publication Number Publication Date
IES950071A2 true IES950071A2 (en) 1995-07-12
IES64140B2 IES64140B2 (en) 1995-07-12

Family

ID=26319691

Family Applications (1)

Application Number Title Priority Date Filing Date
IES950071 IES64140B2 (en) 1994-02-09 1995-01-31 Process for drying a material from solution

Country Status (1)

Country Link
IE (1) IES64140B2 (en)

Also Published As

Publication number Publication date
IES64140B2 (en) 1995-07-12

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Legal Events

Date Code Title Description
FA9A Application withdrawn section 33(1)
MM4A Patent lapsed