公开(公告)号：EP3374318A1

公开(公告)日：2018-09-19

申请号：EP16801047.8

申请日：2016-11-08

申请人： SABIC Global Technologies B.V.

发明人： VAN LIER, Roy ,  HASHMI, Syed Azhar ,  CHAITANYA, Vadlamani Prasad Rao ,  MOHANDAS, Sandeep P. ,  AL-SUBHI, Muhammad Mosleh ,  SANGJOO, Lee ,  HANEEF, Hasan Mohammed Rashad

IPC分类号： C02F1/42 ,  C02F1/66 ,  C02F103/36 ,  C02F103/38

CPC分类号： C02F1/42 ,  B01J41/04 ,  B01J41/05 ,  B01J41/07 ,  B01J41/12 ,  B01J47/02 ,  B01J47/04 ,  B01J49/07 ,  B01J49/57 ,  C02F1/66 ,  C02F2001/422 ,  C02F2101/32 ,  C02F2103/36 ,  C02F2103/38 ,  C02F2209/02 ,  C07C51/42

摘要： A method for recovering water from purified terephthalic acid production wastewater includes: producing purified terephthalic acid comprising purified terephthalic acid feedstock and wastewater comprising impurities; separating the purified terephthalic acid feedstock from the wastewater comprising impurities; transferring the wastewater to a tank; adjusting the p H of the wastewater with a basic solution; adjusting the temperature of the wastewater; passing the wastewater to a column; contacting the wastewater with an ion exchange resin to remove the impurities; and recovering the water depleted of impurities.

公开(公告)号：EP3362162A1

公开(公告)日：2018-08-22

申请号：EP16856082.9

申请日：2016-10-12

申请人： Ecolab USA Inc. ,  SABIC Global Technologies B.V.

发明人： CUOQ, Fabrice ,  LEEN, Steven ,  VACHON, Jerome ,  VAN ZIJL, Anthoni ,  ROBSON, Ian ,  VAN LIER, Roy ,  ARNST, Theodore

IPC分类号： B01D17/04 ,  C10G33/04 ,  C07C4/02

CPC分类号： C10G33/04 ,  B01D17/047 ,  C02F1/68 ,  C02F2101/325 ,  C02F2101/36 ,  C02F2101/38 ,  C02F2103/365 ,  C02F2303/08

摘要： Disclosed herein are methods for resolving emulsions formed from oils present in quench waters of ethylene manufacturing operations. The methods include adding a cationic oligomer to the base of a water quench tower having an emulsion formed therein, and collecting a water phase therefrom. The water phase can be applied to a water recycling loop within the manufacturing facility.