首页> 外国专利> Process for the conversion of the in the production of titanium dioxide according to the sulfate process as iron sulfate in a waste product due to the environment is not part of a half-shell shaped product of the same

Process for the conversion of the in the production of titanium dioxide according to the sulfate process as iron sulfate in a waste product due to the environment is not part of a half-shell shaped product of the same

机译：由于环境原因，根据硫酸盐法在二氧化钛生产中作为废物中的硫酸铁转化的方法不属于相同半壳形产品的一部分

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Ferrous sulphate heptahydrate obtained as a by-product of the production of titanium dioxide by the sulphate process is converted into a non-polluting, free-flowing particulate neutralization product by contacting said sulphate with calcium hydroxide as a neutralizing agent in a molar ratio between said neutralizing agent and said ferrous sulphate of at least 1:1, and reacting the resulting mixture under agitation at a temperature not exceeding 60 DEG C. and for a contact time not exceeding five minutes.

机译：通过使硫酸盐与作为中和剂的氢氧化钙接触，使所述硫酸盐与作为硫酸盐法生产二氧化钛的副产物而得到的硫酸亚铁七水合物转化为无污染，自由流动的颗粒中和产物。中和剂和所述硫酸亚铁的比例至少为1：1，并使所得混合物在不超过60℃的温度下搅拌并接触时间不超过5分钟。

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公开/公告号DE2937131A1

专利类型
公开/公告日1980-04-03

原文格式PDF
申请/专利权人 EUTECO IMPIANTI SPA;
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申请/专利号DE19792937131
发明设计人 PICCOLO LUIGI IT;CORSINI TULLIO IT;PAOLINELLI ANTONIO IT;FERRI GAUDENZIO IT;ROVERE ANGELO LA IT;
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申请日1979-09-13
分类号A62D3/00;C01G23/04;A01N7/00;
国家 DE
入库时间 2022-08-22 17:30:35

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