992results about "Nitrogen and non-metal compounds" patented technology

A red phosphor whose phosphor-constituting crystal phase consists of CaAlSiN3 activated by monoclinic Eu. In particular, there is provided a red phosphor characterized by consisting of powder of CaAlSiN3 activated by Eu having an average particle diameter, as in unpulverized form measured by the laser diffraction / scattering particle size distribution measuring method, of = 10 [mu]m. Further, there is provided a light emitting device comprising a blue light emitting element, the above red phosphor capable of converting blue light emitted by the blue light emitting element to red light and a yellow phosphor capable of converting the blue light to yellow light. Still further, there is provided a process for producing CaAlSiN3 activated by Eu, comprising firing in a nitrogenous atmosphere at 1400 to 2000 DEG C a raw material powder of Ca3N2, AlN and Si3N4 whose composition falls within the region as enclosed in the composition diagram of 1 by straight lines connecting four points A to D each represented by (Ca3N2 : AlN : Si3N4) wherein the Ca3N2, AlN and Si3N4 mean molar ratio thereof, as follows: Point A: (10:70:20), Point B: (10:65:25), Point C: (70:23:7), and Point D: (70:22:8), the raw material powder further containing EuN in an amount of 0.01 to 20 pts.wt. in terms of Eu per 100 pts.wt. of the sum of Ca3N2, AlN and Si3N4.

There is described an apparatus, a tubular laminar flow, plug flow reactor, for making silylamines and particularly trisilylamine (TSA) in high yields from ammonia gas and a monohalosilane gas. The apparatus can be a tubular flow reactor comprising a first portion of the reactor defining a gas entry zone, a second portion of the reactor defining a reaction zone and a third portion of the reactor defining a separation zone, the reaction zone providing a reactant contacting region. Trisilylamine can be recovered in the separation zone in a cold trap collection vessel.