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:
Nov. 29, 1977
Filed:
Jan. 07, 1976
Applicant:
Inventors:
Yoshiki Nishimura, Shin-nanyo, JA;
Kazutaka Sakiyama, Shin-nanyo, JA;
Tadao Adachi, Shin-nanyo, JA;
Kenji Harada, Shin-nanyo, JA;
Assignees:
Toyo Soda Manufacturing Co., Ltd., Tokyo, JA;
Nihon Kinzoku Kogyo Kabushiki Kaisha, Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
2325 / ; 7512 / ; 7512 / ;
Abstract
An apparatus for use in the ammonia soda process or ammonium chloride soda process wherein those parts in contact with the ammoniacal brine, the mother liquor formed in the carbonation tower or the ammonium chloride mother liquor, are made of the austenitic steel consisting essentially of less than 0.05 wt. % of C; 0.1 - 2.0 wt. % of Si; 0.01 - 2.0 wt. % of Mn; 3.0 - 20.0 wt. % of Ni; 15.0 - 30.0 wt. % of Cr; 0.5 - 7.0 wt. % of Mo and the remainder iron.