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:
Jan. 03, 1984
Filed:
Nov. 16, 1981
James N Pryor, Catonsville, MD (US);
Chang W Chi, Columbia, MD (US);
W. R. Grace & Co., New York, NY (US);
Abstract
Shaped products of a 3A zeolite are formed either as beads or extrudates without any binder remaining. In the case of beads, a 4A powder is mixed with a caustic solution and a metakaolin clay binder to form beads. The beads are converted to a binderless 4A product which is given a partial calcium exchange followed by a potassium exchange to obtain the desired 3A binderless bead. The 3A extrudates are produced by forming binderless 4A extrudates from a 4A powder and clay mixture that contains 40-60% by weight clay. These binderless 4A extrudates are then given a potassium exchange. Both the beads and the extrudates can be used to dry a mixture of a hydrocarbon compound such as ethylene and water.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile