摘要:
The disclosure provides for methods of oxidizing carbide anions, or negative ions, from salt like carbides at low temperatures below about 600° C. In another aspect, the disclosure provides for reactions with intermediate transition metal carbides. In yet another aspect, the disclosure provides for a system of reactions where salt-like carbide anions and intermediate carbide anions are oxidized to produce pure carbon of various allotropes.
摘要:
This method for manufacturing trichlorosilane, includes: reacting metallurgical grade silicon with silicon tetrachloride and hydrogen so as to obtain a reaction gas; condensing the reaction gas so as to obtain a condensate; and distilling the condensate using a distillation system including a first distillation column and a secondary distillation column so as to refine trichlorosilane. While maintaining the condensate in a high temperature state so that a concentration of aluminum chloride in the condensate becomes in a range of a saturation solubility or less, the condensate flows to the first distillation column. A liquid distilled in the first distillation column is distilled by the secondary distillation column so as to refine trichlorosilane. A liquid in which aluminum chloride is concentrated is extracted from a bottom portion of the first distillation column. The extracted liquid is concentrated and dried, and then aluminum chloride is exhausted.
摘要:
A production method of aluminum based group III nitride single crystal includes a reaction step, wherein a halogenated gas and an aluminum contact at 300° C. or more to 700° C. or less, producing a mixed gas including an aluminum trihalide gas and an aluminum monohalide gas; a converting step, wherein the aluminum monohalide gas is converted to a solid by setting a temperature of the mixed gas equal to or higher than a temperature to which a solid aluminum trihalide deposit, and lower by 50° C. or more than a temperature to which halogenated gas and aluminum contact in the reaction step; a separation step, wherein the aluminum trihalide gas is removed; and a crystal growth step, wherein the aluminum trihalide gas is used for an aluminum based group III nitride single crystal raw material, keeping its temperature equal to or higher than a temperature of the converting step.
摘要:
A process for the preparation of an amine complex of an aluminum trihalide which comprises reacting aluminum with an amine hydrohalide. The process can be extended to the use of other metals besides aluminum, e.g. magnesium, zinc, or iron.
摘要:
The process for manufacturing halide glasses uses a reaction between organometallic and inter-halide or halide-derived compounds, started at a temperature ranging from the highest melting temperature and the lowest boiling temperature of the compounds used.
摘要:
Method and apparatus for directly desubliming gaseous aluminum chloride to solid form in a fluidized bed of solid particles of aluminum chloride at controlled temperatures for production of selectively constituted solid particulate aluminum chloride.
摘要:
1. PROCESS FOR THE PRODUCTION OF ALUNIMUM CHLORIDE WHICH COMPRISES REACTING CHLORINE AT A TEMPERATURE OF BETWEEN ABOUT 450*-800* C. WITH ALUMINA HAVING AN AVERAGE ALPHA ALUMINA BEING INTERMIXED WITH CARBON AND WEIGHT AND AN AVERAGE SURFACE AREA OF AT LEAST ABOUT10 M.2/G., SAID ALUMINA BEING INTERMIXED WITH CARBON AND COMPOSITELY HAVING AN AVERAGE HYDROGEN CONTENT OF LESS THAN ABOUT 0.5% BY WEIGHT AND AN AVERAGE CARBON CONTENT OF ABOUT 15-24% BY WEIGHT BASED ON THE TOTAL ALUMINA, CARBON AND HYDROGEN CONTENTS PRESENT, TO FORM A GASEOUS EFFLUENT CONTAINING ALUMINUM CHLORIDE AND CARBON OXIDES IN WHICH AT LEAST ABOUT 25% BY WEIGHT OF SUCH CARBON OXIDES IS CARBON DIOXIDE, AND RECOVERING THE ALUMINUM CHLORIDE FROM THE GASEOUS EFFLUENT.