会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Production of acid soluble titania
    • 生产可溶性二氧化钛
    • US5411719A
    • 1995-05-02
    • US127296
    • 1993-09-24
    • Michael J. HollittBrian A. O'Brien
    • Michael J. HollittBrian A. O'Brien
    • C22B34/12C22B1/02C01G23/047C01G23/08
    • C22B34/1236
    • Accordingly the present invention provides a process for producing acid soluble titania which process comprises the steps of:(i) adding a manganese or magnesium compound to a titaniferous mineral if the mineral does not contain sufficient manganese and magnesium to satisfy the following relationship: ##EQU1## where a represents the percentage by weight of MgO contained in the mineral,b represents the percentage by weight of MnO contained in the mineral, andd represents the percentage by weight of TiO.sub.2 contained in the mineral;(ii) heating the titaniferous mineral in the presence of a reductant at a temperature and for a time sufficient to permit contained iron to be reduced to its metallic form and contained titania to convert to an acid soluble form without significant accretion of the mineral occurring;(iii) cooling the product of step (ii); and(iv) subjecting the product of step (iii) to an aqueous chemical treatment to substantially remove iron from the mineralwherein the manganese or magnesium compound is an oxide or is capable of decomposing to an oxide under reaction conditions.
    • 因此,本发明提供了一种生产酸溶性二氧化钛的方法,该方法包括以下步骤:(i)如果矿物不含足够的锰和镁以满足以下关系,则将锰或镁化合物加入到含钛矿物中:其中a表示矿物中所含的MgO的重量百分数,b表示矿物中所含的MnO的重量百分比,d表示矿物中所含的TiO 2的重量百分比; (ii)在还原剂存在下,在足以允许含铁的还原成其金属形式并含有二氧化钛以转化为酸溶性形式而不显着沉积矿物的温度和时间下加热含钛矿物; (iii)冷却步骤(ii)的产物; 和(iv)使步骤(iii)的产物进行水性化学处理以从矿物中基本上除去铁,其中锰或镁化合物是氧化物或在反应条件下能够分解成氧化物。