TW334350B - The producing method for ultra-filter Alumina tube filters - Google Patents

The producing method for ultra-filter Alumina tube filters

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Publication number
TW334350B
TW334350B TW086114981A TW86114981A TW334350B TW 334350 B TW334350 B TW 334350B TW 086114981 A TW086114981 A TW 086114981A TW 86114981 A TW86114981 A TW 86114981A TW 334350 B TW334350 B TW 334350B
Authority
TW
Taiwan
Prior art keywords
ultra
melamine
producing method
alumina tube
tube filters
Prior art date
Application number
TW086114981A
Other languages
Chinese (zh)
Inventor
Shin-Ren Chen
Lii-Hwang Leu
Tzong-Hwai Shyy
Kuen-Long Wang
Original Assignee
Defence Dept Chung Shan Inst
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 Defence Dept Chung Shan Inst filed Critical Defence Dept Chung Shan Inst
Priority to TW086114981A priority Critical patent/TW334350B/en
Application granted granted Critical
Publication of TW334350B publication Critical patent/TW334350B/en

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Abstract

A high-pressure ,non-catalytic process for producing melamine from urea and the melamine is recovered directly as a dry powder without washing or recrystallization is described.In the process, liquid melamine is fed to a cooling unit where it is quenched with a liquid medium, preferably liquid ammonia. By increasing the pressure in excess of 600 psi and preferably to 1200 to 1400 psi provides melamine having a purity in excess of 99%.
TW086114981A 1997-10-14 1997-10-14 The producing method for ultra-filter Alumina tube filters TW334350B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW086114981A TW334350B (en) 1997-10-14 1997-10-14 The producing method for ultra-filter Alumina tube filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW086114981A TW334350B (en) 1997-10-14 1997-10-14 The producing method for ultra-filter Alumina tube filters

Publications (1)

Publication Number Publication Date
TW334350B true TW334350B (en) 1998-06-21

Family

ID=58262940

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086114981A TW334350B (en) 1997-10-14 1997-10-14 The producing method for ultra-filter Alumina tube filters

Country Status (1)

Country Link
TW (1) TW334350B (en)

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