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1. 发明申请

WO2004094536A1 PROCESS FOR PRODUCING TITANIUM DIOXIDE SLURRIES FROM MICRONIZER TAILS 审中-公开
标题翻译：从微波炉尾部生产二氧化钛的方法
公开(公告)号：WO2004094536A1
公开(公告)日：2004-11-04
申请号：PCT/US2003/037442
申请日：2003-11-21
申请人： KERR-MCGEE CHEMICAL LLC , BROWNBRIDGE, Thomas, Ian , ENGLE, Jeffrey, Austin
发明人： BROWNBRIDGE, Thomas, Ian , ENGLE, Jeffrey, Austin
IPC分类号： C09C1/36
CPC分类号： C09C1/3615 , C01P2006/60 , C09D17/008
摘要： Improved methods for producing titanium dioxide slurries. The output from a micronizer is passed through a condenser to condense the steam and form an aqueous slurry of titanium dioxide, which can in most cases then be further concentrated as desired or which can be sold or used without further concentration, instead of passing the micronizer output to apparatus for separating the Ti02 from the steam, as is currently practiced in the art. The resultant slurry from the condenser is in a further refinement preferably sent to an agitated storage tank together with dispersant and anti-settling compounds to aid in preventing settling of the titanium dioxide solids out of the slurry. To help facilitate condensation of the steam/pigment mixture sent to the condenser, a portion of the condensed slurry is in yet a further refinement pumped from the slurry storage tank to a heat exchanger. The output from the heat exchanger is then fed to the condenser to facilitate the condensing of the steam in the condenser. The temperature and volume (flow) of cooled condensate to the condenser are set to match the amount of steam and its temperature so as to ensure that substantially all of the steam and contained pigment are collected from the condenser.
摘要翻译：改进生产二氧化钛浆料的方法。来自微粉碎机的输出通过冷凝器以冷凝蒸汽并形成二氧化钛的水性浆料，其在大多数情况下可根据需要进一步浓缩，或者可以在不进一步浓缩的情况下进行出售或使用，而不是通过微粉剂输出到用于将TiO 2与蒸汽分离的设备，如本领域当前实践的那样。来自冷凝器的所得浆料进一步细化，优选与分散剂和防沉降化合物一起送至搅拌储罐，以有助于防止二氧化钛固体从浆料中沉降。为了帮助促进送到冷凝器的蒸汽/颜料混合物的冷凝，一部分冷凝的浆料还被从浆料储罐泵入热交换器。然后将来自热交换器的输出物送入冷凝器，以便冷凝器中的蒸汽冷凝。将冷却的冷凝物的温度和体积（流量）设置为与蒸汽的量和其温度相匹配，以确保基本上所有的蒸汽和含有颜料从冷凝器中收集。

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