Process for the selective oxidation of hydrocarbons and their de

Details Process for the selective oxidation of hydrocarbons and their de Process for the selective oxidation of hydrocarbons and their de

1995-08-02

1998-09-22

Barts, Samuel

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568719, 568741, 568780, 568803, 568836, 549518, C07C 3700

Patent

active

058115994

ABSTRACT:
A process for the oxidation of hydrocarbons and their derivatives having the general formula RX, wherein R is from n-alkyl, iso-alkyl, benzyl, cyclohexyl, mono, di or tricyclic aryl, or alkenic groups and X is selected from H, OH or Cl to compounds having formula R.sup.1 XY wherein R.sup.1 =(R--H), X has the meaning defined as above and Y=OH; which comprises of reacting the appropriate hydrocarbon or it's derivative of the formula RX where R and X have the meaning given above, with a solution of aqueous hydrogen peroxide at a temperature in the range of 10.degree.-100.degree. C. in the presence of an amorphous titanium-silicate catalyst having molar chemical composition in terms of the anhydrous oxides of TiO.sub.2 : (5-400) SiO.sub.2, having an average micropore radius between 10 and 40 .ANG., an absorption band around 220 nm in the ultraviolet region, a band around 960 cm.sup.-1 in the infrared region, interatomic vectors around 1.6-1.7, 2.7-2.8, 4.1-4.2 and 5.0-5.2 .ANG. in the radial electron density distribution and absence of any line in the x-ray diffraction pattern; and isolating the resultant products of the oxidation reaction by conventional methods.

REFERENCES:
Ratnasamy, P. and A.J. Leonard. "X-Ray Scattering Techniques in the Study of Amorphous Catalysts" Catalysis Reviews 6(2): 293-322 (1972).
Romano, et al. "Selective oxidation with Ti-silicalite" La Chimica & L'Industria 72: 610-616 (1990).
Kooyman, et al. "Titanium deposited from TiCl.sub.4 on amorphous silica and silicalite-1 as catalyst in aromatic hydroxylation reactions" Catalysis Letters 13: 229-238 (1992).

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