Title:
METHOD FOR PREPARING HIGH-PURITY ALUMINA
Document Type and Number:
WIPO Patent Application WO/2011/129658
Kind Code:
A2
Abstract:
The present invention relates to a method for preparing high-purity alumina, the method comprising: a mother liquor preparing step for dissolving and aging ordinary aluminum hydroxide; a refining step for adding pulp to absorb impurities from the prepared mother liquor after the mother liquor preparing step; and an obtaining step for obtaining high-purity alumina by adding a seed into the mother liquor and precipitating, and filtering, washing, and recrystalizing, and calcinating the precipitate. Thus, the present invention enables an environmentally-friendly and low-cost preparation of high-purity alumina.
Inventors:
HU, Jae Hoon (205-401 Poongam Daeju Apt, 1102 Poongam-dong Seo-gu, Gwangju-si 502-156, 502-156, KR)
Application Number:
KR2011/002717
Publication Date:
October 20, 2011
Filing Date:
April 15, 2011
Export Citation:
Assignee:
HAEMAROO MATERIALS CO., LTD. (306 Jeonnam technopark, 618-64 Yeonsan-dongMokpo-si, Jeonranam-do 530-370, 530-370, KR)
주식회사 해마루머티리얼즈 (전라남도 목포시 연산동 618-64 전남테크노파크 306호, 530-370 Jeonranam-do, 530-370, KR)
주식회사 해마루머티리얼즈 (전라남도 목포시 연산동 618-64 전남테크노파크 306호, 530-370 Jeonranam-do, 530-370, KR)
International Classes:
C01F7/46; B01D9/02; B01D15/08
Attorney, Agent or Firm:
PARK, Byung Chang (2F Dongju Bldg. 824-24, Yeoksam-dong Kangnam-gu, Seoul 135-080, 135-080, KR)
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