SEPARATION OF A STRONG ACID FROM ITS SALTS

    公开(公告)号:US20210323821A1

    公开(公告)日:2021-10-21

    申请号:US17272870

    申请日:2019-08-06

    IPC分类号: C01B7/03

    摘要: The present invention relates to a process for the separation of strong acid from its salts. In said process, a strong acid salt is reacted with organic weak base (OWB) in the presence of a hydrophilic solvent and CO2. The cation of the strong acid salt is precipitated to produce a carbonate/bicarbonate salt and the strong acid form a liquid salt with the OWB. The above process is performed in a solution comprising both the strong acid salt and the WBO. In the next step, the strong acid is released from its OWB liquid salt and the OWB is returned to a previous step.

    METHOD FOR PROCESSING MAGNESIUM CHLORIDE SOLUTIONS
    63.
    发明申请
    METHOD FOR PROCESSING MAGNESIUM CHLORIDE SOLUTIONS 审中-公开
    氯化镁溶液的处理方法

    公开(公告)号:US20160369302A1

    公开(公告)日:2016-12-22

    申请号:US14902374

    申请日:2014-07-02

    申请人: PURAC BIOCHEM BV

    IPC分类号: C12P3/00 C01B7/03 C01F5/10

    摘要: A method for processing MgCl2 solutions including the steps of: providing an aqueous solution including 5-25 wt. % of MgCl2 and optionally organic contaminants to a step, wherein water and present, organic components are evaporated; withdrawing aqueous solution with a MgCl2 concentration of 25-35 wt. % from an evaporation step and providing it to a preconcentrator where it is contacted with a HCl containing gas stream at least 300° C.; providing aqueous solution with a MgCl2 concentration of 35-45 wt. % resulting from the preconcentrator to a thermohydrolysis reactor, being at at least 300° C.; withdrawing MgO from the thermohydrolysis reactor in solid form, and withdrawing a HCl containing gas stream from the thermohydrolysis reactor, said HCl-containing gas stream at least 300° C.; providing the HCl-containing gas stream with at least 300° C. to the preconcentrator; withdrawing a HCl-containing gas stream with a temperature of at most 150° C. from the preconcentrator.

    摘要翻译: 一种处理MgCl 2溶液的方法,包括以下步骤:提供包含5-25wt。 %的MgCl 2和任选的有机污染物到一个步骤,其中水和存在的有机组分被蒸发; 以25〜35wt。%的MgCl 2浓度萃取水溶液。 %,并将其提供给预浓缩器,其中其与含HCl的气流接触至少300℃; 提供MgCl 2浓度为35-45wt。%的水溶液。 由预浓缩器导致热水解反应器的至少300℃的%。 从固体形式的热水解反应器中取出MgO,并从热水解反应器中取出含HCl的气体流,所述含HCl的气流至少为300℃。 将至少300℃的含HCl气流提供给预浓缩器; 从预浓缩器中取出具有至多150℃温度的含HCl气流。

    Using methanesulfonyl halide as a key intermediate for methane gas to liquid conversion and raw commodity chemical generation
    65.
    发明授权
    Using methanesulfonyl halide as a key intermediate for methane gas to liquid conversion and raw commodity chemical generation 有权
    使用甲磺酰卤作为甲烷气体转化为液体转化和原始商品化学生成的关键中间体

    公开(公告)号:US08916734B2

    公开(公告)日:2014-12-23

    申请号:US13279098

    申请日:2011-10-21

    摘要: for Processes for converting a methane or a methane containing natural gas to a monohalogenated methane and other downstream basic commodity chemicals going through methanesulfonyl halide as a key intermediate, whereby following its formation, the methanesulfonyl halide is allowed to decompose under a substantially anhydrous condition, preferably in the presence of a catalyst complex, and whereby in addition to the monohalogenated halide, a hydrogen halide and a sulfur dioxide are also formed in the overall conversion, both of which may be recycled back to the beginning of the processes. Additionally, compositions utilizing such a key intermediate for the same purposes are also disclosed.

    摘要翻译: 用于将甲烷或含甲烷的天然气转化为通过甲烷磺酰卤作为关键中间体的单卤代甲烷和其它下游基本商品化学品的方法,由此形成后,使甲磺酰卤在基本无水条件下分解,优选 在催化剂络合物的存在下,并且除了单卤代卤化物之外,在整体转化中也形成卤化氢和二氧化硫,这两者都可以循环回到工艺的开始。 此外,还公开了为相同目的利用这种关键中间体的组合物。

    Method of recovering chlorine gas from calcium chloride
    68.
    发明授权
    Method of recovering chlorine gas from calcium chloride 失效
    从氯化钙中回收氯气的方法

    公开(公告)号:US06994836B2

    公开(公告)日:2006-02-07

    申请号:US10290337

    申请日:2002-11-08

    IPC分类号: C01B7/03

    CPC分类号: C01F11/02 C01B7/03

    摘要: There is disclosed a method of recovering chlorine gas from calcium chloride comprising the steps of introducing calcium chloride into a heat-resistant vessel which is provided with a gas inlet pipe and a gas outlet pipe, heating the calcium chloride up to at least the melting point thereof while introducing an inert gas from the gas inlet pipe into the vessel to produce fused salt of calcium chloride, and heating the interior of the vessel up to at least 1073K and switching a gas to be introduced from the gas inlet pipe from the inert gas to oxygen to allow the fused salt of calcium chloride to react with the oxygen to obtain chlorine gas and calcium oxide, the chlorine gas being subsequently rapidly and continuously discharged from the vessel through the gas outlet pipe.

    摘要翻译: 公开了一种从氯化钙中回收氯气的方法,包括将氯化钙引入耐热容器的步骤,该耐热容器设有气体入口管和气体出口管,将氯化钙加热至少至少熔点 同时将惰性气体从气体入口管引入容器中以产生氯化钙的熔融盐,并将容器的内部加热至至少1073K,并从惰性气体切换从气体入口管引入的气体 氧气使氯化钙的熔融盐与氧气反应得到氯气和氧化钙,氯气随后通过气体出口管从容器中快速且连续地排出。

    Method of producing ferrous sulfate heptahydrate
    69.
    发明申请
    Method of producing ferrous sulfate heptahydrate 失效
    生产硫酸亚铁七水合物的方法

    公开(公告)号:US20050281732A1

    公开(公告)日:2005-12-22

    申请号:US10897602

    申请日:2004-07-23

    摘要: In a method of producing ferrous sulfate heptahydrate, ferrous sulfate monohydrate is converted in a crystallization reactor in the presence of water into ferrous sulfate heptahydrate as crystallized product, and water is subsequently isolated from the ferrous sulfate heptahydrate. Ferrous sulfate monohydrate is obtained from a pickling solution containing ferrous chloride, hydrochloric acid and water and reacted in a precipitating reactor in the presence of excess sulfuric acid to form ferrous sulfate monohydrate and hydrochloric acid. The ferrous sulfate monohydrate is then dehumidified and converted in a crystallization reactor in the presence of excess water into ferrous sulfate heptahydrate.

    摘要翻译: 在生产硫酸亚铁七水合物的方法中,硫酸亚铁一水合物在结晶反应器中在水存在下转化成硫酸亚铁七水合物作为结晶产物,随后从七水硫酸亚铁中分离出水。 硫酸亚铁一水合物由含氯化亚铁,盐酸和水的酸洗溶液得到,并在沉淀反应器中,在过量硫酸存在下反应生成硫酸亚铁一水合物和盐酸。 然后将硫酸亚铁一水合物在过量水的存在下在结晶反应器中进行除湿并转化成七水合硫酸亚铁。

    Method of producing chlorine
    70.
    发明授权
    Method of producing chlorine 失效
    生产氯的方法

    公开(公告)号:US5958357A

    公开(公告)日:1999-09-28

    申请号:US92733

    申请日:1998-06-06

    申请人: C. Edward Eckert

    发明人: C. Edward Eckert

    IPC分类号: C01B7/03 C22B21/06 C01B7/01

    CPC分类号: C22B21/064 C01B7/03 C01B7/035

    摘要: A method of liberating or producing chlorine from hexachloroethane, the method comprising the steps of providing a body comprised of solid hexachloroethane and heating the body to a temperature sufficient to cause the solid hexachloroethane to produce hexachloroethane vapors. Thereafter, the hexachloroethane vapors are exposed to a heated surface and the hexachloroethane vapor decomposed utilizing heat from the heated surface to liberate chlorine from the hexachloroethane vapor.

    摘要翻译: 一种从六氯乙烷中释放或产生氯的方法,该方法包括以下步骤:提供由固体六氯乙烷组成的物体,并加热至足以使固体六氯乙烷产生六氯乙烷蒸汽的温度。 此后,六氯乙烷蒸气暴露于加热的表面,六氯乙烷通过加热表面的热量蒸发,从六氯乙烷蒸气中释放出氯。