公开(公告)号：US20150246817A1

公开(公告)日：2015-09-03

申请号：US14431038

申请日：2013-09-23

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Deepak Akolekar ,  Phani Kiran Bollapragada ,  Santosh Khokarale

IPC: C01B33/12

CPC classification number: C01B33/12 ,  C01B33/126 ,  C01B37/02 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  Y10T428/2982

Abstract: A process for preparing a mesoporous silica comprising contacting as starting components (1) a structure-directing template selected from the group consisting of hydrogenated and non-hydrogenated natural vegetable oils, silicone oils, and combinations thereof; (2) water; (3) silica; and, optionally, (4) a structure-directing co-template selected from tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, cetyltrimethylammonium bromide (CTAB), hexadecyltrimethylammonium chloride; hexadecyltrimethylammonium hydroxide hydrate, hexadecyltrimethylammonium p-toluenesulfonate, hexadecyltrimethylammonium bis-sulfonate, poloxamers having a weight average molecular weight ranging from 5,000 to 20,000 Daltons (Da), and combinations thereof; in the substantial absence of an alcohol solvent; under conditions such that a mesoporous silica having an average pore diameter ranging from 50 to 175 angstroms and a pore diameter distribution that, within one standard deviation of its mean, is substantially unimodal, is formed. The product composition may offer preferred use in, for example, gas separations, sensing, water purification, heavy metal removal, and electronics, where its narrower pore diameter distribution increases its selectivity.

Abstract translation: 一种制备介孔二氧化硅的方法，包括以起始组分（1）的形式接触选自氢化和非氢化天然植物油，硅油及其组合的结构导向模板; （2）水; （3）二氧化硅; 和（4）选自四甲基氢氧化铵，四乙基氢氧化铵，四丙基氢氧化铵，十六烷基三甲基溴化铵（CTAB），十六烷基三甲基氯化铵的结构导向共模板; 十六烷基三甲基氢氧化铵水合物，对甲苯磺酸十六烷基三甲基铵，双磺酸十六烷基三甲基铵，重均分子量为5,000至20,000道尔顿（Da）的泊洛沙姆及其组合; 基本上不存在醇溶剂; 在使得平均孔径为50至175埃的介孔二氧化硅和其平均值的一个标准偏差内的孔径分布基本上为单峰的条件下形成。 产物组合物可以在例如气体分离，感测，水净化，重金属去除和电子学中提供优选的用途，其中其较窄的孔径分布增加其选择性。

公开(公告)号：US09573818B2

公开(公告)日：2017-02-21

申请号：US14431038

申请日：2013-09-23

Applicant: Dow Global Technologies LLC

Inventor： Deepak Akolekar ,  Phani Kiran Bollapragada ,  Santosh Khokarale

IPC: C01B33/12 ,  C01B37/02

CPC classification number: C01B33/12 ,  C01B33/126 ,  C01B37/02 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  Y10T428/2982

Abstract: A process for preparing a mesoporous silica comprising contacting as starting components (1) a structure-directing template selected from the group consisting of hydrogenated and non-hydrogenated natural vegetable oils, silicone oils, and combinations thereof; (2) water; (3) silica; and, optionally, (4) a structure-directing co-template selected from tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, cetyltrimethylammonium bromide (CTAB), hexadecyltrimethylammonium chloride; hexadecyltrimethylammonium hydroxide hydrate, hexadecyltrimethylammonium p-toluenesulfonate, hexadecyltrimethylammonium bis-sulfonate, poloxamers having a weight average molecular weight ranging from 5,000 to 20,000 Daltons (Da), and combinations thereof; in the substantial absence of an alcohol solvent; under conditions such that a mesoporous silica having an average pore diameter ranging from 50 to 175 angstroms and a pore diameter distribution that, within one standard deviation of its mean, is substantially unimodal, is formed. The product composition may offer preferred use in, for example, gas separations, sensing, water purification, heavy metal removal, and electronics, where its narrower pore diameter distribution increases its selectivity.

Abstract translation: 一种制备介孔二氧化硅的方法，包括以起始组分（1）的形式接触选自氢化和非氢化天然植物油，硅油及其组合的结构导向模板; （2）水; （3）二氧化硅; 和（4）选自四甲基氢氧化铵，四乙基氢氧化铵，四丙基氢氧化铵，十六烷基三甲基溴化铵（CTAB），十六烷基三甲基氯化铵的结构导向共模板; 十六烷基三甲基氢氧化铵水合物，对甲苯磺酸十六烷基三甲基铵，双磺酸十六烷基三甲基铵，重均分子量为5,000至20,000道尔顿（Da）的泊洛沙姆及其组合; 基本上不存在醇溶剂; 在使得平均孔径为50至175埃的介孔二氧化硅和其平均值的一个标准偏差内的孔径分布基本上为单峰的条件下形成。 产物组合物可以在例如气体分离，感测，水净化，重金属去除和电子学中提供优选的用途，其中其较窄的孔径分布增加其选择性。