A.V. Luikov Institute of Heat and Mass Transfer

http://www.itmo.by/  
220072 Minsk, Brovki str. 15

Technology of high-temperature synthesis of powders of silicon carbide and other refractory materials in reactor electrothermal fluidized bed

COUNTRY OF ORIGIN

Belarus

IDENTIFIER

TO6703

PUBLISHED

2023-04-29

LAST UPDATE

2023-04-29

DEADLINE

Linked profile in other language
Responsible
Svetlana Markova
+375 29 752 8328
sveta_oms@itmo.by
Summary
A.V.Luikov Heat and Mass Transfer Institute of the NAS of Belarus offers consumers a technology of high-temperature synthesis of powders of silicon carbide and other refractory materials in reactor electrothermal fluidized bed under a commercial agreements with technical assistance and is looking for partners to conclude a technical cooperation agreement.
Description
Silicon carbide SiC refers to innovative materials, the consumption of which in modern high-tech production is constantly growing due to its mechanical, electrical and physical and chemical properties. SiC has high hardness and strength, chemical resistance in oxidizing environments, high thermal conductivity, low density, low thermal expansion coefficient.

A.V.Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus has developed an innovative technology of high-temperature synthesis of powders of silicon carbide and other refractory materials in reactor electrothermal fluidized bed (ETFB reactor), a distinctive feature of which is that the heating of the reacting components occurs by passing an electric current through a fluidized layer of electrically conductive carbon particles, with direct conversion of electrical energy into thermal energy at temperatures of 800 - 1900°C, which causes energy activation of reagents.

The released energy ensures the occurrence of endothermic reactions, and electric discharges between fluidized particles create a microplasma region and destroy chemical bonds in the molecules of the reacting substances. Synthesis of SiC proceeds on the surface of particles of a carbon reducing agent, on which vapors of silicon monoxide SiO are deposited, formed during the evaporation and dissociation of silica SiO2, and the interaction of its melt with carbon at a temperature above 1750 °C.

The efficiency of the technology is ensured by intensive heat and mass transfer between gas and solid particles, fluidity of the layer and its isothermality.

The ETFB reactor provides the possibility of process automation, composition uniformity and high purity of the final product.

The main characteristics of the technology:
maximum temperature до 1900°С
resulting product β-SiC и α-SiC
performance до 3 kg/h
continuous operation
high energy efficiency
the possibility of selective synthesis of various SiC polytypes

The technology is widely used in areas where high temperatures and aggressive media are used: in the aerospace, chemical, nuclear industries, in microelectronics, in the manufacture of abrasive and cutting tools.

The Institute offers partners:
* as part of a commercial agreements with technical support, the acquisition of a technology for high-temperature synthesis of silicon carbide powders and other refractory materials in reactor electrothermal fluidized bed ;
* within the framework of an agreement on technical cooperation, the joint development of technology for the high-temperature synthesis of silicon carbide powders and other refractory materials in reactor electrothermal fluidized bed.


More information - Catalog of R&D products and services of the A.V. Luikov Institute of Heat and Mass Transfer of the NAS of Belarus 2021 "ACTUAL DEVELOPMENTS, RESEARCH, MEASUREMENT AND TESTING", pp.15-16. (in Russian)

Advantages and Innovations
The advantage of this innovative technology is that the internal heating of the reacting particles of the mixture during the flow of current in the ETFB reactor is fundamentally more efficient than heating during the flow of hot gas around the particles in the Acheson furnace, as a result of which energy costs per unit mass of the product are reduced.

The method and installation were awarded the 1st degree Diploma and the Gold Medal in the nomination "The Best Innovative Project in the Field of Materials and Chemical Products" at the St. Petersburg Technical Fair in 2014.
Stage of development
Field tested/evaluated (TRL8)
Funding source
State budged
Internal
IPR status
Exclusive rights
Secret know-how
Sector group
Aeronautics, Space and Dual-Use Technologies
BioChemTech
Materials
Nano and micro technologies

Client information

Type
R&D institution
Year established
1952
NACE keywords
C.28.99 - Manufacture of other special-purpose machinery n.e.c.
D.35.30 - Steam and air conditioning supply
M.72.19 - Other research and experimental development on natural sciences and engineering
M.74.90 - Other professional, scientific and technical activities n.e.c.
Turnover (in EUR)
10-20M
Already engaged in transnational cooperation
Yes
Additional comments
A.V. Luikov Institute of Heat and Mass Transfer of the NAS of Belarus is the largest scientific institution in the republic dealing with fundamental and applied problems of heat and mass transfer, fluid dynamics, energy, heat engineering, chemical physics, physics of combustion and explosion, nanotechnologies, as well as the creation of energy-efficient and environmentally friendly technologies and equipment, devices and devices for energy and mechanical engineering, agro-industrial complex and construction industry, medicine, chemical, electronic, radio engineering, food industry, space industry.

Main directions of scientific and technical activity:
- processes of heat and mass transfer in capillary-porous bodies, disperse systems, rheological and turbulent media, non-equilibrium flows, low-temperature plasma and in the interaction of radiation with matter;
- dynamics, transfer and elementary processes in systems with chemical and phase transformations;
- physical kinetics, heat transfer and transport processes on micro- and nanoscales;
- energy-efficient heat and mass transfer technologies, equipment and devices;
- transfer processes, heat transfer in biological systems and complex molecules;
- physical and structural properties of substances, materials and surfaces under internal structuring and extreme impacts;
- mechanics of liquids, gases and plasma;
- mechanics and rheology of viscoelastic media under shear, temperature, electromagnetic influences;
- numerical methods and software packages for numerical simulation of physical, chemical and heat transfer processes;
- catalytic technologies and equipment for the production of hydrogen, synthesis-, endo- and exo-gases, synthetic and mixed fuels;
- technologies and equipment for the processes of obtaining nano- and micro-structures and materials;
- plasma, plasma-chemical and chemical methods of waste treatment and disposal.

The Institute carries out scientific, scientific-organizational and scientific-production cooperation with academic and industry research institutes, universities, design bureaus, associations and enterprises of Belarus, Russia, Ukraine, Kazakhstan, Moldova, Uzbekistan, Lithuania, Latvia, China, USA, India, Germany, Poland , Czech Republic, Israel, Brazil, Italy, France and other countries.
Languages spoken
English
Russian

Information about partnership

Type of partnership considered
Commercial agreement with technical assistance
Technical cooperation agreement
Type and role of partner sought
Consumers interested in purchasing technology for high-temperature synthesis of silicon carbide powders and other refractory materials in reactor electrothermal fluidized bed under a commercial agreements with technical assistance.

Partners interested in developing technology for high-temperature synthesis of silicon carbide powders and other refractory materials in reactor electrothermal fluidized bed under a technical cooperation agreement.
Type and size of partner sought
> 500
251-500
SME 51-250
SME 11-50
SME <= 10
R&D Institution
University

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