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Patent Searching and Data


Title:
METHOD FOR RECOVERY OF HIGH-GRADE SCHEELITE CONCENTRATE AND FACILITY FOR RECOVERY OF SCHEELITE CONCENTRATE
Document Type and Number:
WIPO Patent Application WO/2017/209440
Kind Code:
A1
Abstract:
Provided are a method for recovery of a high-grade scheelite concentrate and a facility for recovery of a scheelite concentrate. Specifically, provided is a method for recovery of a high-grade scheelite concentrate, the method comprising the steps of: mixing particulate products of scheelite ore with water to form an ore solution; subjecting the ore solution to froth flotation to obtain a rougher scheelite concentrate; and subjecting the rougher scheelite concentrate to froth flotation to obtain a selective scheelite concentrate, wherein the step for obtaining a rougher scheelite concentrate comprises a step for sequentially adding a pH adjuster and an inhibitor to the ore solution, and wherein the pH adjuster is Na2CO3 and the amount of the pH adjuster added is equal to or more than 2 kg/t and equal to or less than 3.5 kg/t; and the inhibitor is Na2SiO3 and the amount of the inhibitor added is equal to or more than 3.5 kg/t and equal to or less than 4.5 kg/t or less.

Inventors:
JEON, Ho Seok (124 Gwahak-ro, Yuseong-gu, Daejeon, 34132, KR)
KIM, Byuoung-gon (302ho 1104dong, Daeducktechnovally-11 APT114, Baeul 2-ro,Yuseong-gu, Daejeon, 34032, KR)
KIM, Su Gang (202ho, Eunsung Villa77-13, Sinseongnam-ro,Yuseong-gu, Daejeon, 34116, KR)
Application Number:
KR2017/005446
Publication Date:
December 07, 2017
Filing Date:
May 25, 2017
Export Citation:
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Assignee:
KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM) (124 Gwahak-ro, Yuseong-gu, Daejeon, 34132, KR)
International Classes:
C22B3/20; B03B5/28; B03D1/02; C22B34/34; C22B34/36
Foreign References:
KR101576927B12015-12-14
KR780000602B11978-11-28
KR101576928B12015-12-14
KR20150076347A2015-07-07
Other References:
LEE, EUN SUN.: "Study on the Recovery of High-Purity Molybdenum Concentrate for Lubricant Use by Froth Flotation", UST MASTER'S THESIS, February 2015 (2015-02-01), pages 1 - 93
Attorney, Agent or Firm:
LIM, Sengseop et al. (No.303 Somerset Palace, 7 Yulgok-ro 2-gil,Jongno-gu, Seoul, 03143, KR)
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