发明授权
- 专利标题: Enhancement of gypsum crystal growth in wet-process phosphoric acid
- 专利标题(中): 水溶性磷酸中水晶生长的增强
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申请号: US3594123D申请日: 1967-08-10
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公开(公告)号: US3594123A公开(公告)日: 1971-07-20
- 发明人: ENCKE FREDERICK LUDWIG , SHEERS EDWARD HELMUT
- 申请人: ARIZONA CHEM
- 专利权人: Arizona Chemical Co LLC
- 当前专利权人: Arizona Chemical Co LLC
- 优先权: US65968467 1967-08-10
- 主分类号: B01D19/04
- IPC分类号: B01D19/04 ; C01B25/22 ; C08L93/00 ; C09F1/04 ; C11D1/72 ; C11D1/76 ; C01F11/46
摘要:
IMPROVEMENTS IN WET-PROCESS PHOSPHRIC ACID SYSTEMS COMPRISING ADDING A COMPOSITION COMPRISING (1) AN ADDUCT OBTAINED BY REACTING ETHYLENE OXIDE WITH TALL OIL ROSIN; WITH OR WITHOUT (2) FATTY ACIDS, WHEREBY FOAM IS SUPPRESSED AND GYPSUM CRYSTAL GROWTH IS ENHANCED.
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