公开(公告)号：US20020072469A1

公开(公告)日：2002-06-13

申请号：US09947968

申请日：2001-09-06

Applicant: Sud-Chemie Inc.

Inventor： David Hill ,  Christian P. Fabry ,  Jorge Bello

IPC: B01J021/16

CPC classification number: B01J21/16 ,  B01J20/12

Abstract: A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring hormite clay product, cleaning and crushing the clay product to form clay clumps less than 6 in. in diameter, aging the crushed hormite clay and activating the clay with extremely small amounts of acid, in the range of less than 1 percent, by weight. Also, an acceptable bleaching clay product can be produced without the addition of any acid to the aged hormite clay.

Abstract translation: 一种用于生产漂白粘土产品的方法，其包括选择天然产生的激素粘土产品，清洁和破碎粘土产品以形成直径小于6英寸的粘土块的步骤，老化破碎的激素粘土并活化粘土 极少量的酸在小于1重量％的范围内。 此外，可以生产可接受的漂白粘土产品，而不向老化的激素粘土添加任何酸。