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:
Nov. 08, 1994

Filed:

Nov. 24, 1992
Applicant:
Inventors:

Matsushige Sakai, Nagoya, JP;

Akira Saji, Nagoya, JP;

Hidetomo Noda, Nagoya, JP;

Takeo Hondoh, Sapporo, JP;

Tadaaki Tanii, Takasago, JP;

Masaru Ishibashi, Takasago, JP;

Masaaki Negoro, Takasago, JP;

Yutaka Kawata, Takasago, JP;

Takefumi Murakami, Takasago, JP;

Hikaru Kitamura, Kobe, JP;

Toshihiro Kamata, Kobe, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
4234 / ; 423220 ; 4234151 ; 2329 / ; 588261 ; 62532 ; 62 73 ;
Abstract

A carbon dioxide clathrate having a lump diameter enough to precipitate on a desired abyssal position of the sea without being drifted by a seawater flow of the abyss can be produced by bringing an aqueous solution into contact with carbon dioxide with the interposition of an interface in a reactor and retaining this contact; adjusting the pressure in the reactor to 13 atm or more, the temperature of the aqueous solution to a level of more than 5.degree. C. to 10.degree. C., the temperature of the interface to a level of more than 10.degree. C. to 15.degree. C. and the temperature of a lug inserted into the aqueous solution to a level of more than 0.degree. C. to 5.degree. C.; producing/growing the carbon dioxide clathrate on the lug; and then heating the lug to a temperature of more than 10.degree. C. to 30.degree. C. to separate/drop the carbon dioxide clathrate therefrom.


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