The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 31, 2009

Filed:

Nov. 13, 2003
Applicants:

Sunkara Vardhireddy Manorama, Andhra Pradesh, IN;

Kongara Madhusudan Reddy, Andhra Pradesh, IN;

Pratyay Basak, Andhra Pradesh, IN;

Chundayil Kalarickal Nisha, Andhra Pradesh, IN;

Chada Venkata Gopal Reddy, Andhra Pradesh, IN;

Inventors:

Sunkara Vardhireddy Manorama, Andhra Pradesh, IN;

Kongara Madhusudan Reddy, Andhra Pradesh, IN;

Pratyay Basak, Andhra Pradesh, IN;

Chundayil Kalarickal Nisha, Andhra Pradesh, IN;

Chada Venkata Gopal Reddy, Andhra Pradesh, IN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 23/053 (2006.01); C01B 21/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to an environmentally benign process for the simultaneous preparation of nanocrystalline anatase titanium dioxide and hydrazine mohydrochloride, in substantial amounts from the acidic aqueous titanium tetrachloride solution by reacting with hydrazine monohydrate at ambient conditions of temperature and pressure. The process of the present invention is simple, easy to operate, pollution free, high in product purity and homogeneous in product particle.


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