About us

Dandong Chemical Engineering Institute Co., Ltd. (known as DCEI) is a scientific and technologically innovative company specialized in R&D, manufacturing and marketing of Hexagonal Boron Nitride and borides. Its predecessor was Dandong Chemical Engineering Institute, founded in 1966. The company covers an area of 36,000 m2, with fixed assets of 37 million yuan and more than 100 employees, of them more than 30% are scientific researchers and technicians. Liaoning BoronContaining New Materials Engineering Laboratory and Liaoning Boron Fine Chemical Engineering Technology Research Center were founded in DCEI. The company mainly produces highperformance Hexagonal Boron Nitride， Amorphous Boron powders, Titanium Diboride, Zirconium Diboride and Calcium Hexaboride by international advanced technologies. In decades, DCEI has gained ISO 9001 & IATF 16949 quality management system certifications ISO 14001 environmental management system certification and ISO 45001 occupational health and safety management system certification and holding more than 20 national patents.

Culture

Honor

Factory

Product

Hexagonal BN
Ceramic
Amorphous boron
Titanium diboride
Zirconium diboride
Calcium hexaboride

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BN HDA SERIES AGGLOMERATED BORON NITRIDE

Product Features

HDA series are high-density Boron Nitride agglomerated particles. The tap density can reach 0.7g/cm3. The products contain single crystal Boron Nitride which is compacted and densified to materials with very low porosity. At present, HDA series comes in two specifications. One is a larger agglomerate with increased Boron Oxide content and D50 of about 210 μm. Another one is smal agglomerated product with low Boron Oxide content and D50 of about 22 μm.

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BN NA SERIES Nano BN

Product Features

NA series is one of the boron nitride products that is currently developing, with particles smaller than 1 um. lt has two morphologies: granular and single platelet. The average particle size of granular grade is about 50 nm, and the size of platelet-like grade is about 400 nm.

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H-BN HS SERIES HEXAGONAL BORON NITRIDE

Product Features

HS series The crystal morphology appears to be single platelet with high crystallinity and low graphitization index. The crystals grow preferred in plane direction and this can be clearly observed under SEM, The crystals have a very high aspect ratio. The product has large crystal size, high purity, low specific surface area, increased density, low soluble Borates, hydrophobic and lipophilic nature and no agglomeration. The overall quality is outstanding and matching the advanced quality level of products from all over the world.

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H-BN HN SERIES HEXAGONAL BORON NITRIDE

Product Features

HN series Microscopically,the monolithic structure is composed of 5~20 μm fillet with a thickness of 0.1 μm. The hexagonal boron nitride HN is fully crystallized, the specific surface area is small, and the free Boron Oxide is low.

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H-BN HF SERIES HEXAGONAL BORON NITRIDE

Product Features

HF series The crystals appears to be smaller, thick, and round shaped. HF has medium crystallinity, small particle size, relatively large specific surface area. high purity, and low water-soluble Boron Oxide content.

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BN GR SERIES GRANULATED BORON NITRIDE

Product Features

GR series are medium density granulated Boron Nitride particles with a tap density of 0.4 to 0.6 g/cm3. GR series is spheroidal grade, of laminated particles of high-purity and high crystallinity Boron Nitride single crystals. The typical particle size varies from 50 ~360 μm to fit for different applications.

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H-BN HC SERIES HEXAGONAL BORON NITRIDE

Product Features

HC series has medium to high crystallinity and excellent high temperature and oxidation resistance. Microscopically, HC is a small agglomerate of smaller crystals with an overall medium specific surface area. The free Boron Oxide of HC and HC8 is typically higher than for other grades.

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BN Ceramic Series

Product Features

The BN ceramic series and its composite ceramics are made of BN powder or composite powder by hot pressing process .The density is between 19-2.1g/cm3The hardness,compressive strength and bending strength of BN ceramics are relatively low, but the thermal conductivity is high. In addition, the ceramic appears low resistivity and corrosion resistance

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AMORPHOUS BORON BORON

Product Features

Amorphous boron powder series products are amorphous Boron with different purities obtained by purification of amorphous boron elements through combustion synthesis. The product has very fine particle size (1-2 μm) and high reactivity. The main impurity are magnesium compounds. The high purity grade is further refined with very low impurity content.

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Titanium diboride

Product Features

Titanium Diboride is highly crystalline and has high purity. The particle size is adjustable from 5 μm to 100 μm, and the microstructure is hexagonal or approximately hexagonal with a certain thickness of the single crystals.

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Zirconium Diboride

Product Features

The Zirconium Diboride is a highly crystalline and high-purityproduct, with a particle size of 10 μm to 50 μm adjustable, and a square crystal with amicroscopic shape of about 10 μm,

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Calcium hexaboride

Product Features

The Calcium Hexaboride is a highly crystalline product, with about 5% Boron Carbide inclusion and a square crystal with a microscopic form of 10-20 μm.

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