Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Reexamination Certificate
2006-01-31
2006-01-31
Seidleck, James J. (Department: 1711)
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
C423S069000, C423S085000, C423S710000, C423S711000, C423S712000, C521S063000, C521S154000
Reexamination Certificate
active
06991678
ABSTRACT:
A process for the preparation of crystalline microporous titanium silicates using ethylsilicate-40 and titanium peroxide as silicon and titanium sources respectively is described. The process permits a significant decrease in the production cost of titanium silicate containing higher amount of titanium (Si/Ti=20) because of cheaper raw materials as well as reduction in the quantity of tetarpropylammonium hydroxide (TPAOH) template (SiO2:TPAOH=1:0.06–0.1) required for preparation. The material obtained by the present invention is useful as an active catalyst in the reactions such as oxidation of hydrocarbons, alcohols, sulphides, and thioethers.
REFERENCES:
Sabde. Dhananjay P., et al., “Synthesis of titanium silicalite-1 using silicate-40: a new silica source for zeolite synthesis”,Journal of Materials Chemistry(2000), 10(6), 1365-1370.
Chemical Abstracts Service, Columbus, Ohio, database accession No. 134:62163 CA XP002260170 Wang, Yajun, et al., “Synthesis of TS-1 zeolite with microporous/macroporous structure”, Oct. 2000.
Chemical Abstracts Service, Columbus, Ohio, database accessing No. 138:75590 CA, Chang, S., et al., “Synthesis of silicalite -1 molecular sieve”, CN Patent 1,338427A, Mar. 2002.
Dongare Mohan Keraba
Malshe Kusum Madhukar
Patil Pratap Tukaram
Council of Scientific and Industrial Research
Ladas & Parry
Seidleck James J.
Zemel Irina S.
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