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.
Patent No.:
Date of Patent:
Apr. 18, 2017
Filed:
Jun. 18, 2015
Changzhou University, Changzhou, CN;
CHANGZHOU UNIVERSITY, Changzhou, CN;
Abstract
The present disclosure provides a method and apparatus for preparing high-purity crystalline silica particles by mixing colloidal silica with an organic base to form a mixed sol. The mixed sol is heated up to a reaction temperature of about 180 degrees Celsius or above, which is held for a reaction time of about 8 to about 168 hours for a hydrothermal synthesis process in the mixed sol. A gravitational setting or a centrifugation is performed on the mixed sol to provide precipitates from the mixed sol. The precipitates are washed with deionized water to remove residual organic base. The washed precipitates are dried at about 60 to about 80 degrees Celsius and are collected and packaged to obtain high-purity crystalline silica particles.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile