公开(公告)号：US11801517B2

公开(公告)日：2023-10-31

申请号：US17168858

申请日：2021-02-05

Applicant: Gannan University of Science and Technology ,  Chongyi Zhangyuan Tungsten Co., Ltd

Inventor： Haixiang Hu

IPC: B03D1/02 ,  B03D1/018 ,  B03D1/08 ,  C01G7/00

CPC classification number: B03D1/025 ,  B03D1/018 ,  B03D1/082 ,  C01G7/00 ,  B03D2201/005 ,  B03D2201/007 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/025

Abstract: Provided is a method for recovering gold in a cyanide tailing by hierarchical ramified flotation. The method divides a cyanide tailing into coarse and fine-grained products through screen classification, making preparation for hierarchical ramified flotation. The method then conducts flotation of the coarse and fine-grained products with suitable process parameters and reagent systems, and selects a suitable coarse-grained flotation product as a carrier of fine-grained flotation to maximize the recovery efficiency of fine grains. The method improves the overall recovery rate of gold with the hierarchical ramified flotation of coarse and fine grains, series-carrier flotation and combined reagent enhanced flotation. The method has an advanced process, a good separation effect, and can effectively recover fine-grained gold in the cyanide tailing.

公开(公告)号：US20210260604A1

公开(公告)日：2021-08-26

申请号：US17168858

申请日：2021-02-05

Applicant: Gannan University of Science and Technology ,  Chongyi Zhangyuan Tungsten Co., Ltd.

Inventor： Haixiang HU

IPC: B03D1/02 ,  B03D1/018 ,  B03D1/08 ,  C01G7/00

Abstract: The present disclosure relates to a method for recovering gold in a cyanide tailing by hierarchical ramified flotation. The present disclosure divides a cyanide tailing into coarse and fine-grained products through screen classification, making preparation for hierarchical ramified flotation. The present disclosure then conducts flotation of the coarse and fine-grained products with suitable process parameters and reagent systems, and selects a suitable coarse-grained flotation product as a carrier of fine-grained flotation to maximize the recovery efficiency of fine grains. The present disclosure improves the overall recovery rate of gold with the hierarchical ramified flotation of coarse and fine grains, series-carrier flotation and combined reagent enhanced flotation. The present disclosure has an advanced process, a good separation effect, and can effectively recover fine-grained gold in the cyanide tailing.