公开(公告)号：US20150315893A1

公开(公告)日：2015-11-05

申请号：US14651338

申请日：2013-12-12

Applicant: SOLVAY SA

Inventor： Pierre GILLIARD ,  Alain VANDENDOREN

IPC: E21B43/40 ,  C01D7/12

CPC classification number: E21B43/40 ,  C01D7/126 ,  E21B43/28

Abstract: Process for recovering soda values from first and second soda deposits situated respectively in first and second underground cavities containing respectively first and second soda solutions, the second soda solution containing a higher concentration in sodium chloride and/or sodium sulfate than the first soda solution, the process comprising: extracting a stream of first soda solution from the first cavity; introducing the stream of first soda solution in a first process which produces first soda crystals and a first waste purge stream containing a higher concentration in sodium chloride and/or in sodium sulfate than the first soda solution; introducing at least part of the first waste purge stream in the second cavity; extracting a stream of second soda solution from the second cavity; and introducing the stream of second soda solution in a second process which produces second soda crystals which have a higher concentration in sodium chloride and/or sodium sulfate than the first soda crystals.

Abstract translation: 分别位于分别包含第一和第二苏打溶液的第一和第二地下腔中的第一和第二苏打沉积物的苏打值的第二苏打溶液的含量比第一苏打溶液含有较高浓度的氯化钠和/或硫酸钠的方法， 方法包括：从第一腔中提取第一苏打溶液流; 在产生第一苏打晶体的第一方法和在第一苏打溶液中含有较高浓度的氯化钠和/或硫酸钠的第一废物清除流中引入第一苏打溶液流; 将第一废物吹扫流中的至少一部分引入第二腔中; 从第二腔中提取第二苏打溶液流; 并在第二种方法中引入第二苏打溶液流，该方法产生在第一苏打晶体中在氯化钠和/或硫酸钠中具有较高浓度的第二苏打晶体。