摘要:
The invention relates to a process and an apparatus for controlled preparation of octachlorotrisilane from monomeric chlorosilanes, by subjecting the chlorosilanes to a thermal plasma.
摘要:
The invention relates to a process for preparing polysilanes by converting monosilane in the presence of hydrogen in a plasma, and to a plant for performing the process.
摘要:
The invention relates to a process and an apparatus for preparation of polychlorosilanes from monomeric chlorosilanes, by subjecting the chlorosilanes to a thermal plasma.
摘要:
The invention relates to a process for converting polychlorosilanes into hexachlorodisilane, by one or more trimeric polychlorosilanes or a trimeric polychlorosilane in a mixture with higher molecular weight polychlorosilanes being exposed to a gas discharge and hexachlorodisilane being formed and isolated.
摘要:
The invention relates to a process for preparing dimeric and/or trimeric silanes by reaction of monosilane in noble gas in a non-thermal plasma, and also to a plant for performance of this process.
摘要:
A plant for preparing trisilylamine in the gas phase is provided. The plant includes a reactor (1) suitable for the reaction of at least the starting materials ammonia and monohalosilane in the gas phase; a precipitation vessel (2) downstream of the reactor (1); and a mixer (3) suitable for producing a homogeneous gas mixture containing at least the starting materials ammonia and monohalosilane upstream of the reactor (1). The mixer (3), reactor (1) and precipitation vessel (2) are connected to one another structurally in such a way that a continuous gas flow through the plant is ensured, with the gas flow optionally being able to be interrupted at one or more suitable points within the plant.
摘要:
The invention relates to a process for producing trimeric and/or quaternary silicon compounds or trimeric and/or quaternary germanium compounds, where a mixture of silicon compounds or a mixture of germanium compounds is exposed to a nonthermal plasma, and the resulting phase is subjected at least once to a vacuum rectification and filtration.
摘要:
The invention provides a method for the processing of finely divided solids during the production of chlorosilanes, which is characterized in that the finely divided solids are hydraulically pressed to give bodies of increased density. Moreover, also provided is the compact obtained by the process according to the invention which is characterized by a filling factor of the finely divided solids to be hydraulically pressed of 3.9 to 4.5.
摘要:
Hollow bodies having a silicon-comprising shell, are produced by, in a gas comprising at least one silane of the general formula SinH2n+2−mXm with n=1 to 4, m=0 to 2n+2 and X=halogen, (a) generating a non-thermal plasma by an AC voltage of frequency f, or operating a light arc, or introducing electromagnetic energy in the infrared region into the gas, giving a resulting phase which (b) is dispersed in a wetting agent and distilled, and then (c) the distillate is contacted at least once with a mixture of at least two of the substances hydrofluoric acid, nitric acid, water, giving a solid residue comprising hollow bodies having a silicon-comprising shell after the conversion reaction of the distillate with the mixture has abated or ended.
摘要:
The present invention relates to a specific process for producing trisilylamine from monochlorosilane and ammonia in the liquid phase. The invention further relates to a plant wherein such a process can be carried out with advantage.