专利检索 ap:("DRAVO CORP") AND inv:"HATFIELD PAUL E" 第 1 页

1.

发明授权
Gas-solid contact device and material discharge means 失效
标题翻译：气固接触装置和材料排出装置

公开(公告)号：US3403895A

公开(公告)日：1968-10-01

申请号：US62783967

申请日：1967-04-03

申请人： DRAVO CORP

发明人： HATFIELD PAUL E , JAQUAY LOUIS H

IPC分类号： F27B7/20

CPC分类号： F27B7/2016

2.

发明授权
Method for the regeneration of hydrochloric acid from spent pickle liquor and like solutions 失效
标题翻译：从液态液体和类似溶液中重新生成氢氯酸的方法

公开(公告)号：US3669623A

公开(公告)日：1972-06-13

申请号：US3669623D

申请日：1969-08-25

申请人： DRAVO CORP

发明人： ALLISON ROBERT J , HATFIELD PAUL E , FRUMERMAN ROBERT

IPC分类号： C01G49/06 , C23G1/36 , C01B7/08

CPC分类号： C23G1/36 , C01G49/06 , Y10S423/01

摘要： A METHOD FOR REGENERATING HYDROCHLORIC ACID FROM SPENT PICKLE LIQUORS BY CHARGING THE LIQUOR INTO A CONVERTER WHERE THE LIQUOR IS CONTACTED BY HOT COMBUSTION GASES AND WATER VAPOR, HYDROGEN CHLORIDE AND A METALLIC OXIDE ARE PRODUCED. THE LIQUOR IS DISPERSED IN A CLOSED ENVIROMENT AND CONTACTED THEREIN WITH HOT COMBUSTION GASES AND VAPORS FROM THE CONVERTER AT A TEMPERATURE WHERE THE WATER VAPORIZES TO CONCENTRATE AND PREHEAT THE LIQUOR WHICH IS THEN COLLECTED IN THE ENVIRONMENT FOLLOWED BY TRANSFER OF CONCENTRATED PREHEATED LIQUOR TO THE CONVERTER WHILE GASES AND VAPORS ARE WITHDRAWN FROM THE CLOSED ENVIRONMENT INTO AN ABSORPTION COLUMN AND CONTACTED WITH A COUNTERCURRENT STREAM OF LIQUID ABSORBENT.