Chemistry of inorganic compounds – Sulfur or compound thereof – Binary compound
Reexamination Certificate
2009-07-10
2010-11-16
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Sulfur or compound thereof
Binary compound
C423S564000, C423S565000, C422S129000, C422S161000
Reexamination Certificate
active
07833508
ABSTRACT:
The invention relates to a reaction vessel in which hydrogen sulphide is prepared from sulphur and hydrogen, wherein the reaction vessel consists partly or entirely of a material which is resistant to the reaction mixture, its compounds or elements and retains its resistance even at high temperatures.
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PCT Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority or the Declaration (Form PCT/ISA/220) received in PCT/EP2009/058388 mailed Oct. 27, 2009.
PCT International Search Report (Form PCT/ISA/210) received in PCT/EP2009/058388 mailed Oct. 27, 2009.
PCT Written Opinion of the International Searching Authority (Form/ISA/237) received in PCT/EP2009/058388 mailed Oct. 27, 2009.
Barth Jan-Olaf
Finkeldei Caspar-Heinrich
Hasselbach Hans Joachim
Heinzel Harald
Kretz Stephan
Evonik Degussa GmbH
Smith , Gambrell & Russell, LLP
Vanoy Timothy C
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