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
    • 2. 发明授权
    • Process for the production of yellow iron oxide
    • 生产黄色氧化铁的方法
    • US06534032B2
    • 2003-03-18
    • US09798847
    • 2001-03-02
    • Ulrich Meisen
    • Ulrich Meisen
    • C01G4902
    • C09C1/24C01G49/06C01P2002/52C01P2002/60C01P2002/70C01P2006/12C01P2006/62C01P2006/63C01P2006/64
    • The present invention relates to a process for the production of an iron oxide yellow by a) adding FeSO4 or FeCl2 with an Fe(III) content of 0.0 to 4.0 mol % Fe(III) and a Mn content of up to 0.7 wt. %, based on the Fe content, to a solution or suspension of an alkaline component that has been heated to a temperature of between 42 and 75° C., and b) oxidizing the suspension formed with an oxidizing agent until all iron(II) has been converted into iron(III) as &agr;-FeOOH, whereby the oxidizing agent is added at a rate such that the oxidation time is between 120 and 600 minutes and the reaction temperature during the entire oxidation time is at least at the temperature at which precipitation occurred.
    • 本发明涉及生产氧化铁黄的方法,其中a)加入Fe(III)含量为0.0-4.0mol%Fe(III)的FeSO 4或FeCl 2,Mn含量高达0.7wt。 基于Fe含量的碱性组分的溶液或悬浮液加热到42至75℃的温度,和b)氧化由氧化剂形成的悬浮液,直到所有的铁(II)具有 被转化为铁(III)作为α-FeO​​OH,由此氧化剂以使得氧化时间在120和600分钟之间并且在整个氧化时间内的反应温度至少在发生沉淀的温度的速率下加入 。
    • 4. 发明授权
    • Method of producing precipitated magnetites
    • 沉淀磁铁矿的生产方法
    • US06280649B1
    • 2001-08-28
    • US09556001
    • 2000-04-20
    • Ulrich Meisen
    • Ulrich Meisen
    • C01G4908
    • H01F1/112C01G49/08C01P2004/62C01P2006/11C01P2006/12C01P2006/42C09C1/24G03G9/0835G03G9/0836
    • The present invention relates to a method of producing magnetite particles useful for the production of toners by (a) placing an alkaline component in the form of an aqueous solution in a vessel under a protective gas, (b) adding 1.0 to 3.0 mol %, relative to Fe of the magnetite, of a silicate component to form a reaction mixture, (c) heating the reaction mixture to a precipitation temperature of 60 to 80° C., (d) adding an iron(II) component at a rate of 0.5 to 1.5 mol of Fe/hour per mol of the alkaline component until the pH of the suspension is 7.0 to 8.5, and (e) oxidizing the suspension with an oxidizing agent at a rate of 20 to 5 mol % of Fe(II)/hour to an Fe(III) content of 65 to 75 mol % of Fe(III).
    • 本发明涉及一种生产用于生产调色剂的磁铁矿颗粒的方法,该方法是(a)将保护气体中的水溶液形式的碱性组分置于容器中,(b)加入1.0-3.0mol% 相对于磁铁矿的Fe,硅酸盐组分形成反应混合物,(c)将反应混合物加热至60至80℃的沉淀温度,(d)以(C) 0.5〜1.5mol Fe /小时/摩尔碱性成分,直到悬浮液的pH为7.0〜8.5,(e)用氧化剂以20〜5mol%Fe(II)的比例氧化悬浮液, /小时,Fe(III)含量为65〜75摩尔%的Fe(III)。
    • 7. 发明授权
    • Method for reprocessing waste acid to form gypsum and iron oxide
    • 后处理废酸形成石膏和氧化铁的方法
    • US06416723B1
    • 2002-07-09
    • US09646280
    • 2000-09-15
    • Gerhard AuerGünter LailachUlrich MeisenWerner Schuy
    • Gerhard AuerGünter LailachUlrich MeisenWerner Schuy
    • C01F100
    • C01C1/028C01F11/46C01G49/06C01P2006/12C01P2006/42C01P2006/60C01P2006/62C01P2006/63C01P2006/64C04B11/262
    • Process for the production of gypsum and also of an iron-oxide pigment from the waste acid that accumulates in the course of the production of titanium dioxide in accordance with the sulfate process, characterized in that in a first stage a partial neutralization of the waste acid is effected with a calcium compound subject to precipitation and optionally direct separation of gypsum, subsequently the remaining solution is neutralized further in a second stage subject to precipitation of a deposit containing Ti, Al, Cr, V and optionally Fe(III) and from the solution containing iron sulfate that is obtained after separation of the solids an iron-oxide pigment is produced in a third stage by addition of alkaline compounds and also optionally addition of ammonia and also of an oxidizing agent, ammonia being liberated by addition of CaO and/or Ca(OH)2 from the solution containing (NH4)2SO4 that is obtained after separation of the iron-oxide pigment.
    • 用于生产石膏的方法以及根据硫酸盐法在二氧化钛生产过程中积聚的废酸中的氧化铁颜料的制备方法,其特征在于在第一阶段中将废酸部分中和 由钙化合物进行沉淀和任选地直接分离石膏,随后在第二阶段中进一步中和残留的溶液,沉淀含有Ti,Al,Cr,V和任选的Fe(III)的沉积物,并从 在第三阶段通过添加碱性化合物以及任选地加入氨以及氧化剂产生在固体分离出氧化铁颜料后得到的含有硫酸铁的溶液,通过添加CaO和/ 或Ca(OH)2从含有(NH 4)2 SO 4的溶液中分离出来)。