Method for separating aluminium chloride from...

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

Reexamination Certificate

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C423S496000

Reexamination Certificate

active

07368590

ABSTRACT:
Aluminum chloride is removed effectively from compound mixtures containing organochlorosilanes such as are produced in the direct synthesis, by adding a diluent containing organochlorosilanes and optionally chloromethane to a solids content <15% and a concentration of compounds having a boiling point >71° C. of less than 25%, and evaporating this diluted mixture into a volatile product stream and an AlCl3-containing solid.

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patent: 5434286 (1995-07-01), Geisberger
patent: 6077967 (2000-06-01), Cardinaud et al.
patent: 842057 (1952-06-01), None
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patent: 0 155 626 (1985-09-01), None
patent: 0 829 484 (1998-03-01), None
patent: 2 761 360 (1998-10-01), None
patent: 20005-029428 (2005-03-01), None
Stark et al., “Aluminum Compounds, Inorganic,” Ullmann's Encyclopedia of Industrial Chemistry, 2002, Wiley-VCH Verlag.
Nol, W., Chemistry and Technology of Silicones,1968, pp. 238 and 340-342.
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Roesch et al., “Silicon Compounds, Organic,” Ullmann's Encyclopedia of Industrial Chemistry, vol. A 24, p. 26.
Schmoelzer H., et al., “Äquilibrierungsreaktionen an Disilanen,” Journal of Organometallic Chemistry, vol. 260, No. 1, Jan. 3, 1984, pp. 31-39 (and English translation).
Sakurai et al., “Aluminum Chloride-Catalyzed Reactions of Organosilicon Compounds II. Facile Syntheses of Alkylchlorosilanes, -Germanes, and -Stannanes (1),” Tetrahedron Letters, vol. 7, No. 45, 1966, pp. 5493-5497.
Zemany, et al., “Kinetics and Thermodynamic Properties of the Disproportionation of Methylchlorosilanes,” Journal of the American Chemical Society, vol. 70, No. 12, (1948-12), pp. 4222-4226.
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For FR 2 761 360: English Patbase Abstract.
For EP-A 155626: English Patbase Abstract.
For DE-B 1111183: English Patbase Abstract.
For DE-C 842057: English Patbase Abstract.

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