Invention Grant
- Patent Title: In line, continuous proppant coating method
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Application No.: US17296871Application Date: 2019-12-06
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Publication No.: US11667830B2Publication Date: 2023-06-06
- Inventor: Praveen Agarwal , Arjun Raghuraman , Juan Carlos Medina
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- International Application: PCT/US2019/064832 2019.12.06
- International Announcement: WO2020/146068A 2020.07.16
- Date entered country: 2021-05-25
- Main IPC: C09K8/70
- IPC: C09K8/70 ; C09K8/80

Abstract:
A continuous process for forming a coated proppant, said process comprising the steps of: (a) washing particles, (b) drying the particles at a first predetermined temperature, (c) cooling the particles, (d) feeding the cooled particles with a second predetermined temperature lower than the first predetermined temperature to an inlet of a combined continuous mixer and conveyor unit, (e) feeding a coating composition into the combined continuous mixer and conveyor unit, (f) mixing and simultaneously conveying the particles and the coating composition for a predetermined time, (g) curing the coating composition by transfer of heat from the particles, (h) discharging the coated particles from an outlet of the combined continuous mixer and conveyor unit, wherein said process does not comprise a step of heating the particles after the drying.
Public/Granted literature
- US20220025249A1 IN LINE, CONTINUOUS PROPPANT COATING METHOD Public/Granted day:2022-01-27
Information query