Title:
【発明の名称】高密度を持つセシウム及びルビジウム塩の溶液を調製する方法
Document Type and Number:
Japanese Patent JP3378007
Kind Code:
B2
Abstract:
PCT No. PCT/EP93/03143 Sec. 371 Date Jul. 17, 1995 Sec. 102(e) Date Jul. 17, 1995 PCT Filed Nov. 10, 1993 PCT Pub. No. WO94/11303 PCT Pub. Date May 26, 1994The method of making a high density saline cesium and rubidium solution includes comminuting uncalcined pollucite and/or calcined lepidolite to a grain size of less than 0.1 mm; combining the comminuted material in the presence of water with Ca(OH)2 at a mol ratio of SiO2 to CaO of not less than 1:2; hydro-thermally decomposing at a temperature of 200 DEG to 280 DEG C., a pressure of 20 to 40 bar and with a suspension density of 4 to 15% by weight for from 1 to 3 hours to form a suspension containing insoluble solids; filtering the insoluble solids and washing to form a filtrate and concentrating the filtrate; blowing carbon dioxide into the concentrated filtrate to precipitate calcium carbonate and lithium carbonate and filtering the concentrated filtrate to separate the precipitated carbonates from a remaining solution; and then adding an acid or acid anhydride to the remaining solution until the pH of the remaining solution reaches about 6 and concentrating by evaporation to form the high density saline cesium and rubidium solution.
Inventors:
Prinz, horst
Hoffman, Hartmut
Kavele, Claus
Wegner, Marion
Hoffman, Hartmut
Kavele, Claus
Wegner, Marion
Application Number:
JP51170294A
Publication Date:
February 17, 2003
Filing Date:
November 10, 1993
Export Citation:
Assignee:
Metal Gezel Shaft / Actien Gezel Shaft
International Classes:
C01D17/00; C22B26/10; (IPC1-7): C01D17/00; C22B26/10
Domestic Patent References:
| JP6036334A | ||||
| JP448097B1 |
Other References:
【文献】Chem.Abs.,1970年,Vol.73,pp.105,79009y
【文献】Chem.Abs.,1973年,Vol.79,pp.422,4949v
【文献】Chem.Abs.,1984年,Vol.100,pp.214,160074p
【文献】Chem.Abs.,1973年,Vol.79,pp.422,4949v
【文献】Chem.Abs.,1984年,Vol.100,pp.214,160074p
Attorney, Agent or Firm:
Masaru Tsuchiya