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Title:
METHOD FOR DRYING TEREPHTHALIC ACID AND HORIZONTAL ROTARY DRYER
Document Type and Number:
WIPO Patent Application WO/2017/046970
Kind Code:
A1
Abstract:
[Problem] To provide a method for drying terephthalic acid and a horizontal rotary dryer, the method not only enabling a dryer to have an improved drying capacity to facilitate mass treatment of terephthalic acid but also rendering a size reduction possible. [Solution] A method for drying terephthalic acid using a horizontal rotary dryer, the method comprising rotating the rotating cylinder so that the critical speed ratio α defined by equations 1 and 2 is 17% or higher but less than 80% and drying the object to be treated. Vc=2.21D1/2 equation 1 α=V/Vc·100 equation 2 In the equations, Vc is the critical speed (m/s) of the rotating cylinder, D is the inner diameter (m) of the rotating cylinder, α is the critical speed ratio (%) of the rotating cylinder, and V is the rotation speed (m/s) of the rotating cylinder.

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Inventors:
NAKATA YOICHI (JP)
ONO YUICHI (JP)
SUWA SATOSHI (JP)
SATO SUMITO (JP)
Application Number:
PCT/JP2015/084517
Publication Date:
March 23, 2017
Filing Date:
December 09, 2015
Export Citation:
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Assignee:
TSUKISHIMA KIKAI CO (JP)
International Classes:
F26B17/32
Foreign References:
JP2014055687A2014-03-27
JPS58501245A1983-07-28
JP2010236846A2010-10-21
JP5778831B12015-09-16
JPS6260632B21987-12-17
JP2009203163A2009-09-10
Other References:
See also references of EP 3168560A4
"explanatory manual of Association of Powder Process Industry and Engineering, Japan Standard SAP 15-13", 2013, pages: 17
Attorney, Agent or Firm:
NAGAI, YOSHIHISA (JP)
Yoshihisa Nagai (JP)
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