公开(公告)号：US20100098621A1

公开(公告)日：2010-04-22

申请号：US12444730

申请日：2007-10-05

Applicant: Robert E. Bucher, JR. ,  James Timothy Cronin ,  Yung-Hsing Samson Hsu ,  Charles David Musick ,  Kunle Ogunde ,  Robert Rossi

Inventor： Robert E. Bucher, JR. ,  James Timothy Cronin ,  Yung-Hsing Samson Hsu ,  Charles David Musick ,  Kunle Ogunde ,  Robert Rossi

IPC: C01G23/07

CPC classification number: C01G23/07 ,  C01P2006/80 ,  C09C1/3661

Abstract: The disclosure relates to a process for making titanium dioxide, comprising: reacting titanium tetrachloride with oxygen by contacting the titanium tetrachloride with the oxygen in a vapor phase reactor under mixing conditions and at an elevated temperature to form a gaseous product stream containing titanium dioxide; separating the titanium dioxide from the gaseous product stream to form a process stream; analyzing the process stream to detect a concentration of titanium tetrachloride in the process stream; comparing the concentration of titanium tetrachloride detected in the process stream to an aim point concentration; and modifying the oxidation conditions to restore or maintain the concentration of titanium tetrachloride in the process stream at the aim point. In one embodiment, the process further comprises contacting the gaseous product stream with silicon tetrachloride under mixing conditions and at an elevated temperature to at least partially encapsulate the titanium dioxide with a silicon-containing compound and separating the at least partially encapsulated titanium dioxide from the gaseous product stream and analyzing the process stream to detect a concentration silicon tetrachloride for comparison to a silicon tetrachloride aim point concentration so that the conditions for silicon tetrachloride contacting can be modified to restore or maintain the concentration of silicon tetrachloride in the process stream.

Abstract translation: 本公开涉及一种制备二氧化钛的方法，包括：在混合条件和升高的温度下，在气相反应器中使四氯化钛与氧接触使四氯化钛与氧反应形成含有二氧化钛的气态产物流; 将二氧化钛与气态产物流分离以形成工艺流; 分析工艺流以检测工艺流中四氯化钛的浓度; 将在工艺流中检测到的四氯化钛的浓度与目标浓度进行比较; 并修改氧化条件以恢复或维持目标点处理物流中四氯化钛的浓度。 在一个实施方案中，该方法还包括在混合条件下和在升高的温度下使气体产物流与四氯化硅接触以至少部分地将二氧化钛与含硅化合物包封，并将至少部分包封的二氧化钛与气体 产物流并分析工艺流以检测四氯化硅浓度以与四氯化硅目标浓度进行比较，从而可以改变四氯化硅接触的条件以恢复或维持工艺流中四氯化硅的浓度。

公开(公告)号：US20080280142A1

公开(公告)日：2008-11-13

申请号：US12157814

申请日：2008-06-12

Applicant: John Nicholas Birmingham ,  Stephan Claude De La Veaux ,  Yunghsing Samson Hsu ,  Peter Jernakoff ,  Kevin Joseph Leary ,  Charles David Musick ,  Philipp M. Niedenzu ,  Narayanan S. Subramanian

Inventor： John Nicholas Birmingham ,  Stephan Claude De La Veaux ,  Yunghsing Samson Hsu ,  Peter Jernakoff ,  Kevin Joseph Leary ,  Charles David Musick ,  Philipp M. Niedenzu ,  Narayanan S. Subramanian

IPC: C04B14/00 ,  B32B15/02 ,  B05D7/00

CPC classification number: C08K9/06 ,  C01P2004/62 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/60 ,  C01P2006/62 ,  C01P2006/63 ,  C01P2006/64 ,  C08K9/02 ,  C08K9/04 ,  C09C1/3669 ,  C09C1/3676 ,  C09C1/3684 ,  C09C1/3692 ,  Y10T428/2991 ,  Y10T428/2995 ,  Y10T428/2998

Abstract: One aspect of the invention is to provide a composition comprising a titanium dioxide particle having on the surface of said particle a substantially encapsulating layer comprising a pyrogenically-deposited metal oxide; said substantially encapsulating layer having on its surface at least one organic surface treatment material selected from an organo-silane, an organo-siloxane, a fluoro-silane, an organo-phosphonate, an organo-acid phosphate, an organo-pyrophosphate, an organo-polyphosphate, an organo-metaphosphate, an organo-phosphinate, an organo-sulfonic compound, a hydrocarbon-based carboxylic acid, an associated ester of a hydrocarbon-based carboxylic acid, a derivative of a hydrocarbon-based carboxylic acid, a hydrocarbon-based amide, a low molecular weight hydrocarbon wax, a low molecular weight polyolefin, a co-polymer of a low molecular weight polyolefin, a hydrocarbon-based polyol, a derivative of a hydrocarbon-based polyol, an alkanolamine, a derivative of an alkanolamine, an organic dispersing agent, or a mixture thereof. Another aspect of the invention is to provide processes for producing said composition.

Abstract translation: 本发明的一个方面是提供包含二氧化钛颗粒的组合物，所述二氧化钛颗粒在所述颗粒的表面上具有包含热解沉积金属氧化物的基本上包封层; 所述基本上包封的层在其表面上具有至少一种选自有机硅烷，有机硅氧烷，氟代硅烷，有机膦酸酯，有机酸磷酸酯，有机焦磷酸酯，有机焦磷酸酯， 有机磷酸酯，有机 - 次膦酸盐，有机磺酸化合物，烃基羧酸，烃类羧酸的相关酯，烃类羧酸的衍生物，烃类羧酸的衍生物， 低分子量烃蜡，低分子量聚烯烃，低分子量聚烯烃的共聚物，烃基多元醇，烃类多元醇的衍生物，链烷醇胺，链烷醇胺的衍生物 ，有机分散剂或其混合物。 本发明的另一方面是提供生产所述组合物的方法。

公开(公告)号：US20080089833A1

公开(公告)日：2008-04-17

申请号：US11546764

申请日：2006-10-12

Applicant: Robert E. Bucher ,  James Timothy Cronin ,  Yung-Hsing Samson Hsu ,  Charles David Musick ,  Kunle Ogunde ,  Robert J. Rossie

Inventor： Robert E. Bucher ,  James Timothy Cronin ,  Yung-Hsing Samson Hsu ,  Charles David Musick ,  Kunle Ogunde ,  Robert J. Rossie

IPC: C01G23/047

CPC classification number: C01G23/07 ,  C01P2006/80 ,  C09C1/3661

Abstract: The disclosure relates to a process for making titanium dioxide, comprising: reacting titanium tetrachloride with oxygen by contacting the titanium tetrachloride with the oxygen in a vapor phase reactor under mixing conditions and at an elevated temperature to form a gaseous product stream containing titanium dioxide; separating the titanium dioxide from the gaseous product stream to form a process stream; analyzing the process stream to detect a concentration of titanium tetrachloride in the process stream; comparing the concentration of titanium tetrachloride detected in the process stream to an aim point concentration; and modifying the oxidation conditions to restore or maintain the concentration of titanium tetrachloride in the process stream at the aim point. In one embodiment, the process further comprises contacting the gaseous product stream with silicon tetrachloride under mixing conditions and at an elevated temperature to at least partially encapsulate the titanium dioxide with a silicon-containing compound and separating the at least partially encapsulated titanium dioxide from the gaseous product stream and analyzing the process stream to detect a concentration silicon tetrachloride for comparison to a silicon tetrachloride aim point concentration so that the conditions for silicon tetrachloride contacting can be modified to restore or maintain the concentration of silicon tetrachloride in the process stream.

Abstract translation: 本公开涉及一种制备二氧化钛的方法，包括：在混合条件和升高的温度下，在气相反应器中使四氯化钛与氧接触使四氯化钛与氧反应形成含有二氧化钛的气态产物流; 将二氧化钛与气态产物流分离以形成工艺流; 分析工艺流以检测工艺流中四氯化钛的浓度; 将在工艺流中检测到的四氯化钛的浓度与目标浓度进行比较; 并修改氧化条件以恢复或维持目标点处理物流中四氯化钛的浓度。 在一个实施方案中，该方法还包括在混合条件下和在升高的温度下使气体产物流与四氯化硅接触以至少部分地将二氧化钛与含硅化合物包封，并将至少部分包封的二氧化钛与气体 产物流并分析工艺流以检测四氯化硅浓度以与四氯化硅目标浓度进行比较，从而可以改变四氯化硅接触的条件以恢复或维持工艺流中四氯化硅的浓度。

公开(公告)号：US07208126B2

公开(公告)日：2007-04-24

申请号：US10804277

申请日：2004-03-19

Applicant: Charles David Musick ,  Austin H. Reid, Jr. ,  Lu Zhang

Inventor： Charles David Musick ,  Austin H. Reid, Jr. ,  Lu Zhang

IPC: C01G1/00 ,  C01G23/00

CPC classification number: B82Y30/00 ,  C01G23/07 ,  C01P2004/51 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/60 ,  Y10S977/773 ,  Y10S977/775 ,  Y10S977/777 ,  Y10S977/811

Abstract: Titanium dioxide nanopowder is produced by a process, comprising: (a) reacting titanium tetrachloride and an oxygen containing gas in the vapor phase in a flame reactor, at a flame temperature of at least about 800° C. in the presence of (i) water vapor in an amount ranging from about 1000 to about 50,000 parts per million, based on the weight of titanium dioxide under production, (ii) a diluent gas in an amount greater than about 100 mole percent based on the titanium tetrachloride and oxygen containing gas and (iii) a nucleant consisting essentially of a cesium substance wherein the cesium substance is present in an amount ranging from about 10 to about 5000 parts per million, based on the weight of the titanium dioxide under production, the pressure of reaction being sufficient to form titanium dioxide nanopowder.

Abstract translation: 二氧化钛纳米粉末通过一种方法制备，包括：（a）在火焰反应器中，在至少约800℃的火焰温度下，在（i）的情况下，在气相中使四氯化钛与含氧气体反应， 基于生产中的二氧化钛的重量，水蒸气的量为约1000至约50,000ppm，（ii）基于四氯化钛和含氧气体的量大于约100摩尔％的稀释气体 和（iii）基本上由铯物质组成的成核剂，其中铯物质的存在量为约10至约5000ppm，基于生产中的二氧化钛的重量，反应的压力足以 形成二氧化钛纳米粉末。