• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Regioselective, stereoselective and catalytic hydrochlorination of alkynes. The present invention describes a process for obtaining vinyl chlorides which can comprise, at least, the following steps: - A first step in which, at least, an alkyne selected from acetylene, an acetylene derivative and combinations thereof, and hydrogen chloride is contacted with a catalyst containing, at least, gold nanoparticles in the presence of a non-protic polar additive. - A second stage of heating the obtained mixture. - A third stage of product recovery. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2676121A1
    申请号:ES201631594
    申请日:2016-12-15
    公开日:2018-07-16
    发明作者:Avelino Corma Canós；Antonio LEYVA PÉREZ；Judit OLIVER MESEGUER
    申请人:Consejo Superior de Investigaciones Cientificas CSIC；Universidad Politecnica de Valencia；
    IPC主号:
    专利说明:

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    vinyl with the methodology described in the present invention, avoiding the very toxic and expensive synthetic routes currently in use.
    Description of the invention
    5
    The present invention describes a process for obtaining vinyl chlorides of industrial interest by direct coupling of alkynes with hydrogen chloride in the presence of a solid catalyst containing gold nanoparticles and a non-protic and polar additive.
    The method of obtaining vinyl chlorides described comprises, at least, the following steps:
    - A first stage in which at least one alkyne selected from acetylene, a
    Acetylene derivative and combinations thereof, and hydrogen chloride can be contacted with a catalyst that can contain at least gold nanoparticles in the presence of a non-protic polar additive.
    - A second stage of heating the obtained mixture.
    twenty
    - A third stage of product recovery.
    According to a general embodiment of the present invention, the alkyne may be selected from acetylene gas, or acetylene derivatives with substituents selected from alkyls,
    Aromatics, methoxies, aldehydes, halides, esters and combinations thereof that are preferably in amounts between 1000 and 1 equivalents, preferably 100-20 equivalents relative to catalyst. Preferably, the alkyne used in the process is acetylene gas.
    According to a particular embodiment, the ratio of alkyne to catalyst may preferably be between 1000 and 1, and more preferably between 100 and 20.
    4
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    权利要求:
    Claims (1)
    [1]
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    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2018109247A1|2018-06-21|
    ES2676121B1|2019-04-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN101735005A|2008-11-14|2010-06-16|约翰逊马西有限公司|Improvement of catalytic method|CN109622036B|2018-12-25|2021-08-13|南开大学|Preparation method of gold-based catalyst for preparing vinyl chloride by acetylene hydrochlorination method|
    CN109589998B|2019-01-15|2021-09-03|扬州工业职业技术学院|Novel ZnO/Se/SiO2Preparation method of composite material and application of composite material in preparation of phthalide|
    CN109665951B|2019-01-15|2021-09-03|扬州工业职业技术学院|ZnO/Se/SiO2Composite materials and their use as oxidizers|
    CN113578318A|2021-08-31|2021-11-02|南京工业大学|Preparation and application of gold-based catalyst for acetylene hydrochlorination|
    法律状态:
    2018-07-16| BA2A| Patent application published|Ref document number: 2676121 Country of ref document: ES Kind code of ref document: A1 Effective date: 20180716 |
    2019-04-29| FG2A| Definitive protection|Ref document number: 2676121 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190429 |
    2019-11-27| FA2A| Application withdrawn|Effective date: 20191121 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201631594A|ES2676121B1|2016-12-15|2016-12-15|HYDROCHLORINATION REGIOSELECTIVA, STEREOSELECTIVA AND CATALYTICA OF ALQUINOS|ES201631594A| ES2676121B1|2016-12-15|2016-12-15|HYDROCHLORINATION REGIOSELECTIVA, STEREOSELECTIVA AND CATALYTICA OF ALQUINOS|
    PCT/ES2017/070788| WO2018109247A1|2016-12-15|2017-11-30|Regioselective, stereoselective and catalytic hydrochlorination of alkynes|
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