|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||501/146 ; 501/147 ; 501/148 ; 501/149|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 1 인용 특허 : 4|
A bleached, dispersed, high solids slurry is produced from unprocessed crudes at low pH and with minimum work input, using polyacrylic acid as the dispersant. The process involves making the slurry at the highest solids possible without resorting to filtration or spray drying.
A process for treating a crude kaolin clay mineral which comprises: a. blunging the clay in sufficient water to form an aqueous suspension having a solids content of at least 60% by weight for a period of time in the range of about two minutes to less than an hour, adding sufficient ammonia to adjust the pH to within the range of about 3.0 to about 4.5 and adding polyacrylic acid as a dispersant, employing a quantity of dispersant sufficient to achieve substantially minimum low shear viscosity; b. degritting to remove particles larger than those that wou...