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Class Information
Number: 552/269
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Polycyclo ring system containing anthracene configured ring system having at least one double bond between ring members and having oxygen single bonded or any atom double bonded directly at the 9- and 10-positions (e.g., anthraquinones, etc.) > Processes of forming anthraquinone per se or enolic form thereof utilizing heavy metal containing material (e.g., vanadium catalyst utilized, etc.)
Description: Processes wherein a heavy metal containing material is utilized to form anthraquinone, per se, or an enolic form thereof.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6399795 |
Method for producing 2-(4-methyl-3-pentenyl) anthraquinone |
Jun. 4, 2002 |
| 6156155 |
Method for the delignification of lignocellulosic material by adding a dialkyl substituted octahydroanthraquinone |
Dec. 5, 2000 |
| 5616734 |
Process for the catalytic oxidation of aromatic compounds |
Apr. 1, 1997 |
| 5002634 |
Method for the delignification of wood pulp utilizing fused ring quinone compounds prepared from lignin or lignin derived substances |
Mar. 26, 1991 |
| 4822527 |
Process for preparation of anthraquinones and fluorenones |
Apr. 18, 1989 |
| 4804501 |
Process for preparation of anthraquinones and fluorenones |
Feb. 14, 1989 |
| 4477380 |
Oxidation process of reactive aromatics with reactivation of the catalyst using potassium permanganate |
Oct. 16, 1984 |
| 4411818 |
Reactivation of vanadium-containing oxidation catalysts |
Oct. 25, 1983 |
| 4308211 |
Process for the preparation of anthraquinone |
Dec. 29, 1981 |
| 4215063 |
Oxidation catalyst and use in the production of anthraquinone |
Jul. 29, 1980 |
| 4203906 |
Process for catalytic vapor phase oxidation |
May. 20, 1980 |
| 4062872 |
Process of oxidizing hydrocarbons using catalysts with high heat conductivity |
Dec. 13, 1977 |
| 4036860 |
Production of anthraquinone |
Jul. 19, 1977 |
| 4002653 |
Manufacture of anthraquinone |
Jan. 11, 1977 |
| 3965251 |
Method of regenerating a degraded working solution for the production of hydrogen peroxide |
Jun. 22, 1976 |
| 3932474 |
Preparation of antraquinone |
Jan. 13, 1976 |
| 3931254 |
Process for the preparation of anthraquinone |
Jan. 6, 1976 |
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