Organochlorosilanes are produced by reacting, in a fluidized bed reactor, a chloromethane-containing reactant gas with a particulate contact mass containing silicon and a catalyst, wherein the organochlorosilanes have the general formula (CH.sub.3).sub.nHSiCl.sub.4-n-m where n=1 to 3 and m=0 or 1, wherein the process is characterized by three dimensions indices K1-K3, which are respectively associated with the reactor, the contact mass, and the reaction conditions, and which are maintained within specified bounds.

An organic electroluminescence device comprises a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer comprises a polycyclic compound represented by Formula 1 and achieves high efficiency and a low driving voltage. In Formula 1, at least one of Ar.sub.1 to Ar.sub.4 is represented by Formula 2. ##STR00001##

Provided is a fluorosilicone resin and a preparation method thereof. Using pentafluorostyrene as raw material, pentafluorophenethyldimethylchlorosilane is prepared by a hydrosilylation reaction. By means of a polycondensation reaction of the pentafluorophenethyldimethylchlorosilane, trimethylchlorosilane and tetraethyl orthosilicate, a pentafluorophenyl silicone resin is prepared. The preparation method adopts a two-step polycondensation process, which overcomes the disadvantages of a large difference in hydrolysis reactivity between pentafluorophenyldimethylchlorosilane and a copolymerized trialkyl-chlorosilane, and achieves a high yield. The obtained pentafluorophenyl silicone resin has the advantages of superior heat resistance, simple preparation process, low equipment requirements, high availability of raw material, and suitability for mass production. The heat-resistant fluorosilicone resin can be applied in a polymer material, such as a heat-resistant adhesive.

An organic electroluminescence device comprises a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer comprises a polycyclic compound represented by Formula 1 and achieves high efficiency and a low driving voltage. In Formula 1, at least one of Ar.sub.1 to Ar.sub.4 is represented by Formula 2.

##STR00001##

Provided is a fluorosilicone resin and a preparation method thereof. Using pentafluorostyrene as raw material, pentafluorophenethyldimethylchlorosilane is prepared by a hydrosilylation reaction. By means of a polycondensation reaction of the pentafluorophenethyldimethylchlorosilane, trimethylchlorosilane and tetraethyl orthosilicate, a pentafluorophenyl silicone resin is prepared. The preparation method adopts a two-step polycondensation process, which overcomes the disadvantages of a large difference in hydrolysis reactivity between pentafluorophenyldimethylchlorosilane and a copolymerized trialkyl-chlorosilane, and achieves a high yield. The obtained pentafluorophenyl silicone resin has the advantages of superior heat resistance, simple preparation process, low equipment requirements, high availability of raw material, and suitability for mass production. The heat-resistant fluorosilicone resin can be applied in a polymer material, such as a heat-resistant adhesive.

The present disclosure provides a method for processing a fluorine-containing aqueous solution. The method comprises a reaction step for mixing in a vertical direction the fluorine-containing aqueous solution and a disiloxane compound represented by a general formula R.sub.aR.sub.bR.sub.cSiOSiR.sub.dR.sub.eR.sub.f, wherein R.sub.a, R.sub.b, R.sub.c, R.sub.d, R.sub.e and R.sub.f are selected independently from each other from a group consisting of a phenyl group and an alkyl group comprising from 1 to 20 carbon atoms and hydrogen, to react a fluorine ion in the fluorine-containing aqueous solution with the disiloxane compound, obtaining a first reaction liquid containing a monofluorosilane compound represented by general formulas R.sub.aR.sub.bR.sub.cSiF and R.sub.dR.sub.eR.sub.fSiF.

A process for producing organochlorosilanes in a fluidized bed reaction comprises reacting haloorganic reaction gas with a catalytic composition comprising silicon, copper catalysts and promoters, in a fluidized bed reactor, wherein the hydraulic diameter of the fluidized bed reactor dhyd, the superficial gas velocity in the fluidized bed reactor uL and the particle Sauter diameter of the catalytic composition d32 are selected such that, in a Cartesian coordination system in which Ar is plotted against Re, points on the surface are formed wherein the surface is limited by equations 1 and 2
Ar=2.Math.10.sup.5.Math.Re.sup.2+0.08*Re120Equation 1:
Ar=2.Math.10.sup.5.Math.Re.sup.21.07*Re+14100Equation 2: wherein the lower limit Ar=0.5 and the upper limit Ar=3000. The invention also relates to a method for selecting reaction parameters for producing organochlorosilanes.

A process for producing organochlorosilanes in a fluidized bed reaction comprises reacting haloorganic reaction gas with a catalytic composition comprising silicon, copper catalysts and promoters, in a fluidized bed reactor, wherein the hydraulic diameter of the fluidized bed reactor dhyd, the superficial gas velocity in the fluidized bed reactor uL and the particle Sauter diameter of the catalytic composition d32 are selected such that, in a Cartesian coordination system in which Ar is plotted against Re, points on the surface are formed wherein the surface is limited by equations 1 and 2
Ar=2.Math.10.sup.5.Math.Re.sup.2+0.08*Re120Equation 1:
Ar=2.Math.10.sup.5.Math.Re.sup.21.07*Re+14100Equation 2: wherein the lower limit Ar=0.5 and the upper limit Ar=3000. The invention also relates to a method for selecting reaction parameters for producing organochlorosilanes.

A process for producing organochlorosilanes in a fluidized bed reaction comprises reacting haloorganic reaction gas with a catalytic composition comprising silicon, copper catalysts and promoters, in a fluidized bed reactor, wherein the hydraulic diameter of the fluidized bed reactor dhyd,

the superficial gas velocity in the fluidized bed reactor uL and

the particle Sauter diameter of the catalytic composition d32 are selected such that,

in a Cartesian coordination system in which Ar is plotted against Re, points on the surface are formed wherein the surface is limited by equations 1 and 2

Ar=2.Math.10.sup.5.Math.Re.sup.2+0.08*Re120 Equation 1

Ar=2.Math.10.sup.5.Math.Re.sup.21.07*Re+14100 Equation 2

wherein the lower limit Ar=0.5 and
the upper limit Ar=3000. The invention also relates to a method for selecting reaction parameters for producing organochlorosilanes.

A process for producing organochlorosilanes in a fluidized bed reaction comprises reacting haloorganic reaction gas with a catalytic composition comprising silicon, copper catalysts and promoters, in a fluidized bed reactor, wherein the hydraulic diameter of the fluidized bed reactor dhyd,

the superficial gas velocity in the fluidized bed reactor uL and

the particle Sauter diameter of the catalytic composition d32 are selected such that,

in a Cartesian coordination system in which Ar is plotted against Re, points on the surface are formed wherein the surface is limited by equations 1 and 2

Ar=2.Math.10.sup.5.Math.Re.sup.2+0.08*Re120 Equation 1

Ar=2.Math.10.sup.5.Math.Re.sup.21.07*Re+14100 Equation 2

wherein the lower limit Ar=0.5 and
the upper limit Ar=3000. The invention also relates to a method for selecting reaction parameters for producing organochlorosilanes.