Tạp chí
 
Năm 2016
 
Số 1 [02 - 2016], Năm thứ XXX

Nghiên cứu tuyến nổi một số mẫu than hạt mịn vùng Hòn Gai-Cẩm Phả trong dung dịch nước biển

https://tapchi.hoimovietnam.vn/vi/archives?article=16011

  • Cơ quan:

    Trường Đại học Mỏ - Địa chất

  • Ngày đăng: 28-02-2016
Trang: 7 - 10
Lượt xem: 41
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Tóm tắt:

Flotation is the main process to recover the fine coals which has been accumulated in many coal ponds in Hon Gai-Cam Pha area of Quang Ninh province. The flotation process in sea water has been worked out to resolve the shortage of process water in the local area and in the other hand because of that the flotation would be ameliorated in sea water medium.This article presents the flotation test results of some fine coal samples -1 mm from Hon Gai-Cam Pha (Quang Ninh) in sea water in comparison with the tap water. The test results showed that all the coal samples are well floated in the sea water medium: A clean coal product ashed <10 % was received with the recovery of combustible matter 85¸95 % and the ash of the rejects 75¸80 %. The collector consumption was reduced by half and there is no need to use the frother. These preliminary results show that this process have a bright perspective application for fine coal beneficiation in Vietnam.

Trích dẫn
Nhữ Thị Kim Dung và Nguyễn Hoàng Sơn, 2016. Nghiên cứu tuyến nổi một số mẫu than hạt mịn vùng Hòn Gai-Cẩm Phả trong dung dịch nước biển, Tạp chí Công nghiệp Mỏ, số XXX, kỳ 1, tr. 7-10.
Tài liệu tham khảo

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3. Di Liu, Yongjun Peng, Reducing the entrainment of clay minerals in flotation using tap and saline water, Powder Technology 253 (2014) 216-222.

4. 0. Ozdemir, E. Taran, M.A. Hampton, s.I. Karakashev, A.v. Nguyen, Surface chemistry aspects of coal flotation in bore water, International Journal of Mineral Processing 92 (2009) 177-183

5. 0. Ramos, s. Castro, J s. Laskowski, Copper-molybdenum ores flotation in sea water: Floatability and Frothability, Mineral Processing 53 (2013) 108-112.

6. Liguang Wang, Modeling of bubble coalescence in saline water in the presence of flotation frothers, International Journal of Mineral Processing 134 (2015)41-49.

7. Bo Wang, Yongjun Peng, The effect of saline water on mineral flotation - A critical review, Mineral Processing 66 -68 (2014) 13-24.

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