Chlorine and iron oxide from ferric chloride - apparatus
    91.
    发明授权
    Chlorine and iron oxide from ferric chloride - apparatus 失效
    氯化铁中的氯和氧化铁 - 装置

    公开(公告)号:US4282185A

    公开(公告)日:1981-08-04

    申请号:US49208

    申请日:1979-06-15

    CPC分类号: B01J8/28 C01B7/03 C01G49/06

    摘要: An improved industrial multistage recirculating-fluidized-bed reactor for producing chlorine and iron oxide having an initial "dense" zone and a downstream "dilute" zone. In the dense zone, a fuel is burned, reactants and recirculated iron oxide particles are heated, ferric chloride is vaporized and at least 50% of the ferric chloride is converted to chlorine and iron oxide. In the downstream dilute zone, a solids fraction from 0.005-0.05 is maintained, along with a superficial gas velocity from 1.5-6 meters/second which is from 5-25 times the superficial gas velocity in the dense zone, and the conversion of ferric chloride is continued to greater than 95% completion.

    摘要翻译: 一种用于生产具有初始“致密”区和下游“稀释”区的氯和氧化铁的改进的工业多级循环流化床反应器。 在致密区域,燃料燃烧,反应物和再循环氧化铁颗粒被加热,氯化铁蒸发,并且至少50%的氯化铁转化成氯和氧化铁。 在下游稀释区,维持0.005-0.05的固体馏分,以及1.5-6米/秒的表观气体速度,其为致密区域中表观气体速度的5-25倍,铁的转化率 氯化物持续大于95%的完成。

    Recovery of chlorine values from iron chloride by-product in
chlorination of aluminous materials
    92.
    发明授权
    Recovery of chlorine values from iron chloride by-product in chlorination of aluminous materials 失效
    在氯化铝材料氯化物副产物中回收氯值

    公开(公告)号:US4259298A

    公开(公告)日:1981-03-31

    申请号:US037718

    申请日:1979-05-10

    摘要: The invention relates to a method of recovering the chlorine values from iron chloride obtained from the chlorination of an aluminous material containing iron oxide, such as bauxite. The method involves partially dechlorinating ferric chloride in the presence of a reducing agent to form products comprising ferrous chloride and a chloride compound derived from the reducing agent and oxidizing ferrous chloride at a temperature of about 300.degree. C. to 1200.degree. C. to form products comprising ferric chloride and ferric oxide. The ferric chloride is recycled and the chlorine values are recovered as the chloride of the reducing agent which is suitable for recycle to the aluminous chlorination stage or has other industrial utility.

    摘要翻译: 本发明涉及从含有氧化铁的铝土材料(例如铝土矿)氯化得到的氯化铁中回收氯值的方法。 该方法包括在还原剂存在下部分氯化氯化铁,以形成包含氯化亚铁和衍生自还原剂的氯化物化合物和在约300℃至1200℃的温度下氧化氯化亚铁的产物,以形成产物 包括氯化铁和氧化铁。 氯化铁被回收,氯值作为还原剂的氯化物被回收,该还原剂适于再循环到高氯化阶段或具有其它工业实用性。

    Transparent red iron oxide pigments and process for producing same
    96.
    发明授权
    Transparent red iron oxide pigments and process for producing same 失效
    透明红色氧化铁颜料及其制造方法

    公开(公告)号:US4201762A

    公开(公告)日:1980-05-06

    申请号:US958078

    申请日:1978-11-06

    申请人: James E. Daly

    发明人: James E. Daly

    摘要: Transparent red iron oxide pigments of outstanding quality and particularly high clarity and strength and good dispersibility characteristics are described. The pigments are produced by heating a dry mixture of alpha-ferric oxide hydrate particles and at least 0.2 part per part of hydrate of a salt which is an alkali metal nitrate, nitrite or mixtures thereof to a temperature above the melting point of the salt and recovering the resulting ferric oxide as a pigment.

    摘要翻译: 描述了出色的透明红色氧化铁颜料,特别高的透明度和强度以及良好的分散特性。 颜料是通过将α-氧化铁水合物颗粒的干混合物和至少0.2份盐水的水合物(其是碱金属硝酸盐,亚硝酸盐或其混合物)加热到高于盐的熔点的温度而制备的,并且 回收所得的氧化铁作为颜料。

    Production of titanium trichloride from ilmenite
    100.
    发明授权
    Production of titanium trichloride from ilmenite 失效
    硝酸铁生产三氯化钛

    公开(公告)号:US4098868A

    公开(公告)日:1978-07-04

    申请号:US791621

    申请日:1977-04-27

    申请人: William K. Tolley

    发明人: William K. Tolley

    CPC分类号: C01G23/02

    摘要: Titanium metal values may be recovered from a titanium bearing source by roasting said source in a reducing atmosphere, leaching the source with aqueous hydrogen chloride at an elevated temperature, cooling and saturating the leached solution with gaseous hydrogen chloride to precipitate hydrated ferrous chloride, separating the precipitated ferrous chloride from the soluble titanium chloride, raising the temperature of the solution to precipitate the titanium, separating and recovering the crystallized titanium compound.

    摘要翻译: 钛金属值的生产钛金属值可以通过在还原气氛中焙烧所述源而从含钛源回收,在升高的温度下用氯化氢水溶液浸出源,用氯化氢气体冷却并饱和浸出的溶液以沉淀出水合物 氯化亚铁,将沉淀的氯化亚铁从可溶性氯化钛中分离出来,提高溶液的温度以沉淀钛,分离和回收结晶的钛化合物。