公开(公告)号：US3308156A

公开(公告)日：1967-03-07

申请号：US39433264

申请日：1964-09-03

Applicant: ALLIED CHEM

Inventor： GERRY HAROLD T ,  JAMEIL AMEEN

CPC classification number: C07C281/06

公开(公告)号：US3383166A

公开(公告)日：1968-05-14

申请号：US39014164

申请日：1964-08-17

Applicant: ALLIED CHEM

Inventor： GERRY HAROLD T ,  AMANO CARL K ,  YODIS ANTHONY W

IPC: C01F7/24 ,  C01F7/66 ,  C22B21/00 ,  C25C3/18

CPC classification number: C22B21/0015 ,  C01F7/24 ,  C01F7/66 ,  C25C3/18 ,  Y02P10/234

公开(公告)号：US3584997A

公开(公告)日：1971-06-15

申请号：US3584997D

申请日：1968-06-21

Applicant: ALLIED CHEM

Inventor： GERRY HAROLD T

IPC: C01B25/22 ,  C01D3/06 ,  C01F5/30 ,  C01B25/10 ,  C01F5/14

CPC classification number: C01F5/30 ,  C01B25/22 ,  C01D3/06

Abstract: A CYCLIC PROCESS FOR THE ECONOMIC RECOVERY OF MAGNESIUM VALUES AND PHOSPHORIC ACID FROM NATURAL HIGH SULFATE BRINES AND PHOSPHATE ROCK BY SUCCESSIVE EVAPORATIONS OF THE BRINE TO OBTAIN SALT PRECIPITATES AND A BRINE CONTAINING MAGNESIUM CHLORIDE WHICH IS DECOMPOSED TO MAGNESIUM OXIDE AND HYDROGEN CHLORIDE.THE HYDROGEN CHLORIDE IS RESERVED FOR DIGESTION OF PHOSPHATE ROCK TO YIELD PHOSPHORIC ACID AND CALCIUM CHLORIDE SOLUTION WHICH IS UTILIZED IN ONE OF THE BEINE EVAPORATION STEPS. THIS PARTICULAR COMBINATION OF STEPS ASSURES RECOVERY OF MOST OF THE MAGNESIUM VALUES OF THE BRINE AND UTILIZES A NET CONSUMPTION OF LOW COST NATURAL BEINE TO YIELD VALUABLE PHOSPHORIC ACID AND THUS EFFECTS MANY ECONOMIES.

公开(公告)号：US3320028A

公开(公告)日：1967-05-16

申请号：US23542562

申请日：1962-11-05

Applicant: ALLIED CHEM

Inventor： KLINGELHOEFER WILLIAM C ,  GERRY HAROLD T

IPC: C01B21/16

CPC classification number: C01B21/16