Inventor

BACHELARD ROLAND

FR21 patents

⚠️ This page may combine multiple inventors who share the name “BACHELARD ROLAND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BACHELARD ROLAND

ATOCHEM

Method of making metal carbide and nitride powders

Metal carbide and nitride powders

Catalytic oxychlorination of hydrocarbons to produce chlorocarbons

Ceramic preforms comprising monocrystalline hexagonal platelets of α-a

Macrocrystalline α-alumina hexagonal platelets

Catalytic oxychlorination of hydrocarbons to produce chlorocarbons

Ceramic preforms comprising monocrystalline hexagonal platelets of alpha-alumina

ATOCHEM ELF SA

Optically transparent gamma-aluminum oxynitride powders and ceramic articles shaped therefrom

Production of whisker-free Si3 N4 particulates by carbonitriding SiO2

Continuous process for the preparation of silicon nitride by carbonitriding and silicon nitride thereby obtained

Continuous process for the preparation of aluminum nitride by the carbonitriding of alumina

Carbonitriding of alumina to produce aluminum nitride

Carbonitriding of alumina to produce aluminum nitride

UGINE KUHLMANN

Process for extracting chromium from chromium ores

Process for the preparation of high purity aluminas starting from impure aluminum chloride solutions

Process for the preparation of finely divided aluminas or alumina-magnesia spinels having homogeneous pore structure

Anhydrite binder and method

Novel process for the preparation of high purity alumina from ammonium alum

COMURHEX

Process for producing sintered mixed oxides which are soluble in nitric acid from solutions of nitrates

Process for the preparation of pulverulent metallic oxides from metallic nitrates

Process for the production of uranium trioxide having a large specific surface from hydrated uranyl nitrate