Invention Grant
- Patent Title: Process for macroscopically separating maceral concentrate from raw coal
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Application No.: US16879737Application Date: 2020-05-20
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Publication No.: US10906048B1Publication Date: 2021-02-02
- Inventor: Wei Huang , Dong Wang , Jun Wang , Chunyan Tu , Litong Liang , Zeyu Peng
- Applicant: Taiyuan University of Technology
- Applicant Address: CN Taiyuan
- Assignee: Taiyuan University of Technology
- Current Assignee: Taiyuan University of Technology
- Current Assignee Address: CN Taiyuan
- Agency: Avant Law Group, LLC
- Priority: CN201910651214 20190718
- Main IPC: B03D1/02
- IPC: B03D1/02 ; B03B5/32 ; B03B7/00 ; B03B9/00 ; B03B5/34

Abstract:
Processes for macroscopically separating a maceral concentrate from raw coal are disclosed. In some embodiments, a process includes the following steps: crushing and sieving the raw coal to obtain a first coal sample and a second coal sample; subjecting the first coal sample to a heavy medium cyclone separation process; and subjecting the second coal sample to a froth flotation process. The first coal sample has a particle size within a first particle size range, and the second coal sample has a particle size within a second particle size range. In other embodiments, the froth flotation process uses a froth flotation agent including a foaming agent and a collector. The foaming agent includes at least one item selected from the group consisting of 2-octanol, terpenic oil, and polyethylene glycol (PEG). The collector includes at least one item selected from the group consisting of kerosene, diethyl phthalate (BET), and diesel.
Public/Granted literature
- US20210016292A1 Process for Macroscopically Separating Maceral Concentrate From Raw Coal Public/Granted day:2021-01-21
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