• 专利标题:   Synthesizing carbon beads by preparing viscous slurry in non-polar solvent configured to function as disperse phase, preparing viscous gel using hydrocolloids, passing disperse phase and continuous phase into microfluidic droplet generator, subjecting to thermal treatment and UV radiation and drying.
  • 专利号:   WO2021178338-A1, IN202247045432-A, CN115103715-A, KR2022135238-A, EP4114549-A1, US2023108396-A1, JP2023517180-W
  • 发明人:   PARENTE M, SITHARAMAN B, SITARAMAN B
  • 专利权人:   MILLENNIAL MATERIALS DEVICES INC, MILLENNIAL MATERIALS DEVICES INC, MILLENNIAL MATERIALS DEVICES INC
  • 国际专利分类:   B01D039/20, B01J020/20, B01J021/16, B01L003/00, B82Y030/00, B82Y040/00, C01B032/162, C01B032/156, C01B032/168, C01B032/194, C01B032/21, C01B032/28, C01B032/384, C01B032/15, C01B032/318, B01J002/06, C09C001/58, B01J013/00, C01B032/05, C09C001/44
  • 专利详细信息:   WO2021178338-A1 10 Sep 2021 B01D-039/20 202181 Pages: 49 English
  • 申请详细信息:   WO2021178338-A1 WOUS020366 02 Mar 2021
  • 优先权号:   US983863P, US17760477, CN80014913, KR728754

▎ 摘  要

NOVELTY - Process for synthesis of carbon beads involves preparing a viscous slurry in a non-polar solvent configured to function as a disperse phase, where the viscous slurry is prepared using at least one of a binder, a crosslinker molecule, a radical polymerization initiator and a carbon material and each of the binder and the crosslinker molecule comprises terminal carbon double bond groups and a spacer group, preparing a viscous gel using hydrocolloids, where the viscous gel is configured to function as a continuous phase; passing the disperse phase and the continuous phase into a microfluidic droplet generator to obtain spherical droplets of a predefined size; subjecting the spherical droplets to one of a thermal treatment and UV radiation to obtain spherical particles of carbon beads; and drying the spherical particles of carbon beads to obtain the carbon beads of a predefined dimension. USE - The process is useful for synthesis of carbon beads used in separation, filtration, purification, wires and cables, electrodes, sensor, composite and additive manufacturing and pharmaceutical delivery applications. ADVANTAGE - The process provides the carbon beads of spherical structures with controlled size, morphology, porosity and physico-chemical properties, enables modulation of the viscous slurry for synthesis of the carbon beads with improved physico-chemical properties and enhances ability of the carbon beads to withstand extreme pH and high temperatures. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a composition for synthesis of carbon beads comprising a viscous slurry as a disperse phase, where the viscous slurry comprises 0.1-20 wt.% carbon material, 50-99 wt.% binder or crosslinker molecule, where the each of the binder and the crosslinker molecule comprises terminal carbon double bond groups and a spacer group, 1-3 wt.% radical polymerization initiator, where the radical polymerization initiator comprises at least one of benzoyl peroxide, 2,2-azo-bis-isobutyronitrile, 2-hydroxy-2-methyl-propiophenone, and diphenyl iodonium nitrate and 0.05-5 wt.% viscous gel as a continuous phase, where the viscous gel comprises hydrocolloids; and (2) a microfluidic droplet generator comprising a continuous phase pressure tank configured to hold a viscous gel as a continuous phase, a continuous phase pressure regulator fluidically coupled to continuous phase pressure tank, where the continuous phase pressure regulator is configured to control a flow rate and a pattern of the continuous phase, a metered pressure pump fluidically connected to a slurry reservoir, and the metered pressure pump is configured to control flow of a viscous slurry as a disperse phase loaded into the slurry reservoir, a hydrophilic co-flow focused nozzle fluidically connected to the continuous phase pressure regulator and the slurry reservoir, where the hydrophilic co-flow focused nozzle is configured to allow mixing of the continuous phase and the dispersed phase and a hydrophilic reaction chamber fluidically coupled to the hydrophilic co-flow nozzle, where the hydrophilic reaction chamber is configured to carry hydrophilic reactions for synthesis of spherical shaped particles of carbon beads.