Bead for Use in a Milling Device

Publication: EP4563227A1
Published: 2025-06-04
Family Size: 1
Granted: No

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a uniquely designed milling bead used in mechanochemical milling devices. The bead maintains a generally spherical shape but features specialized surface structures—such as grooves or protruding rings—that significantly increase its surface area compared to normal smooth beads. These modifications enhance the interaction between the bead and processed materials, resulting in improved efficiency for processes such as co-crystallization, allotrope conversion, and particle size reduction during milling operations.

Use CasesContent extracted from patent full text and abstract with AI.

  • Industrial and laboratory grinding, mixing, and homogenization of powders and particulate materials
  • Mechanosynthesis of chemical compounds through solid-state reactions
  • Co-crystallization of pharmaceutical and chemical compounds without solvents
  • Allotrope conversion of elements (e.g., transforming red phosphorus to black phosphorus)
  • Reducing particle sizes in materials science, metallurgy, ceramics, and nanomaterials production
  • Improving efficiency and throughput in milling processes in pharmaceutics, chemistry, and materials engineering

BenefitsContent extracted from patent full text and abstract with AI.

  • Significantly faster and more uniform mixing and reaction rates compared to standard spherical beads
  • Reduces caking, clumping, and non-uniform mixing, leading to higher product quality
  • Enhanced particle size reduction with improved monodispersity of particles
  • Enables solvent-free or low-solvent mechanochemical processes, supporting greener chemistry approaches
  • Provides higher and more evenly distributed kinetic energy within the milling device, improving overall process efficiency
  • Versatile—compatible with a wide range of bead materials and applicable to various milling devices

Technical Classifications (CPCs)

Main Classifications

Manufacturing & Transport

Sub Classifications

Crushing & Disintegrating

CPC Codes

B02C17/20

Inventors & Applicants

Applicants

Univ Berlin Freie

Patent Abstract

The invention relates to a bead (1) for use in a milling device (20), the bead (1) having a general shape of a sphere and comprising a modified spherical surface structure (10), furthermore the invention relates to method for co-crystallization, to the method for allotrope conversion and to the method for particle size reduction, wherein said methods use said bead (1).

Key Information

Publication No.

EP4563227A1

Family ID

88978333

Publication Date

2025-06-04

Application No.

EP23212608A

Application Date

2023-11-28

Priority Date

2023-11-28

Granted

No

Possible Cooperation

For further information please contact the transfer office.