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    Recovering/recycling nitric acid from dinitration process streams comprising HNO3/dinitro compounds
    21.
    发明授权
    Recovering/recycling nitric acid from dinitration process streams comprising HNO3/dinitro compounds 失效
    从包含HNO3 /二硝基化合物的二硝化工艺流中回收/再循环硝酸

    公开(公告)号：US06191325B1

    公开(公告)日：2001-02-20

    申请号：US09130348

    申请日：1998-08-13

    Applicant: Philippe Marion ,  Pascal Metivier

    Inventor： Philippe Marion ,  Pascal Metivier

    IPC: C07C20500

    CPC classification number: C07C201/16 ,  C07C201/08 ,  C07C205/06

    Abstract: Dinitro aromatic compounds are improvedly prepared by reacting an aromatic compound with a nitric acid nitrating agent and thence separating the nitrating acid from the process stream thus formed, the process stream containing said at least one dinitro aromatic compound and also having a fraction of the nitrating acid dissolved therein, the subject process also comprising (a) distilling/stripping nitric acid from said process stream, (b) recovering nitric acid from the top of the distillation/stripping vessel and recycling same to the nitration reaction and (c) washing the process stream which contains the at least one dinitro aromatic compound, but having the nitric acid removed therefrom.

    Abstract translation: 二硝基芳族化合物通过使芳族化合物与硝酸硝化剂反应，然后从所形成的工艺流中分离硝酸而改进制备，所述工艺流含有所述至少一种二硝基芳族化合物，并且还含有一部分硝酸 本方法还包括（a）从所述工艺流中蒸馏/除去硝酸，（b）从蒸馏/汽提容器的顶部回收硝酸并将其再循环到硝化反应，和（c）洗涤该过程 其含有至少一种二硝基芳族化合物，但其中除去硝酸。

    Method for preparing a 4-hydroxybenzaldehyde and derivatives
    22.
    发明授权
    Method for preparing a 4-hydroxybenzaldehyde and derivatives 失效
    4-羟基苯甲醛及其衍生物的制备方法

    公开(公告)号：US06184421B2

    公开(公告)日：2001-02-06

    申请号：US09308065

    申请日：1999-05-13

    Applicant: Pascal Metivier

    Inventor： Pascal Metivier

    IPC: C07C4538

    CPC classification number: C07C45/676 ,  C07C39/11 ,  C07C41/30 ,  C07C45/38 ,  C07C51/235 ,  C07C47/58 ,  C07C47/575 ,  C07C65/21 ,  C07C43/23

    Abstract: The present invention concerns a process for the preparation of a 4-hydroxybenzaldehyde and its derivatives. More particularly, the invention concerns the preparation of 3-methoxy-4-hydroxybenzaldehyde and 3-ethoxy-4-hydroxybenzaldehyde, respectively known as vanillin and ethylvanillin. The process for the preparation of a 4-hydroxybenzaldehyde and its derivatives is characterized in that it consists of selectively oxidising, to a carboxy group, the group in the 2 position with respect to the hydroxyl group, present in the phenolic compounds in a mixture comprising at least a phenolic compound (A) carrying formyl and/or hydroxymethyl groups in the 2 and 4 position, a phenolic compound (B) carrying a formyl or hydroxymethyl group in the 4 position, a phenolic compound (C) carrying a formyl or hydroxymethyl group in the 2 position, resulting in a mixture comprising a 3-carboxy-4-hydroxybenzaldehyde, a 4-hydroxybenzaldehyde and a 2-hydroxybenzoic acid, which then undergoes a decarboxylation operation to produce the 4-hydroxybenzaldehyde and a phenol which can optionally be recycled.

    Abstract translation: 本发明涉及一种制备4-羟基苯甲醛及其衍生物的方法。 更具体地，本发明涉及3-甲氧基-4-羟基苯甲醛和3-乙氧基-4-羟基苯甲醛的制备，分别称为香草醛和乙基香兰素。 制备4-羟基苯甲醛及其衍生物的方法的特征在于，它包括以相对于羟基的2位选择性氧化羧基，所述基团存在于酚类化合物中，所述混合物包含 至少在2位和4位含有甲酰基和/或羟甲基的酚类化合物（A），4位上带有甲酰基或羟甲基的酚类化合物（B），含有甲酰基或羟甲基的酚类化合物（C） 组成2位，得到包含3-羧基-4-羟基苯甲醛，4-羟基苯甲醛和2-羟基苯甲酸的混合物，然后进行脱羧操作以产生4-羟基苯甲醛和可以任选地为 回收。

    Preparation of picric acid
    23.
    发明授权
    Preparation of picric acid 失效
    苦味酸的制备

    公开(公告)号：US6063967A

    公开(公告)日：2000-05-16

    申请号：US94595

    申请日：1998-06-15

    Applicant: Laurent Bernard ,  Pascal Metivier

    Inventor： Laurent Bernard ,  Pascal Metivier

    IPC: C07C201/08 ,  C06B25/04 ,  C07C205/24 ,  C07C205/00

    CPC classification number: C07C201/16 ,  C07C201/08

    Abstract: Picric acid, namely, 2,4,6-trinitrophenol, is readily and effectively prepared by nitrating o-nitrophenol and/or p-nitrophenol into at least one dinitrophenol in a nitric acid medium of reaction, characteristically essentially consisting of nitric acid or immixture thereof with a strong co-acid, the at least one dinitrophenol remaining soluble in the medium of reaction, and therein completing nitration of the at least one dinitrophenol and precipitating picric acid therefrom.

    Abstract translation: 苦味酸，即2,4,6-三硝基苯酚，通过在硝酸反应介质中将邻硝基苯酚和/或对硝基苯酚硝化成至少一种二硝基酚而容易且有效地制备，其特征在于主要由硝酸或杂质组成 其中所述至少一种二硝基苯酚仍然可溶于所述反应介质中，并且其中完成所述至少一种二硝基苯酚的硝化并从其沉淀出苦味酸。

    Process for the preparation of 3-carboxy-4-hydroxybenzaldehides and derivatives thereof
    24.
    发明授权
    Process for the preparation of 3-carboxy-4-hydroxybenzaldehides and derivatives thereof 失效
    3-羧基-4-羟基苯甲醛及其衍生物的制备方法

    公开(公告)号：US5783737A

    公开(公告)日：1998-07-21

    申请号：US776343

    申请日：1997-01-24

    Applicant: Pascal Metivier

    Inventor： Pascal Metivier

    IPC: B01J23/42 ,  B01J23/44 ,  C07B61/00 ,  C07C45/38 ,  C07C45/65 ,  C07C45/67 ,  C07C47/575 ,  C07C47/58 ,  C07C51/255 ,  C07C65/30 ,  C07C201/12 ,  C07C205/61 ,  C07C45/00

    CPC classification number: C07C45/676 ,  C07C45/38 ,  C07C51/255

    Abstract: The present invention concerns a process for the preparation of 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof from phenolic compounds carrying formyl and/or hydroxymethyl groups in the 2 and 4 positions. The invention also concerns the preparation of 4-hydroxybenzaldehydes from 3-carboxy-4-hydroxybenzaldehydes. More particularly, the invention concerns the preparation of 3-methoxy-4-hydroxybenzaldehyde and 3-ethoxy-4-hydroxybenzaldehyde, respectively known as "vanillin" and "ethylvanillin". The process for the preparation of 3-carboxy-4-hydroxybenzaldehyde is characterized in that the group in the 2 position in a phenolic compound carrying formyl and/or hydroxymethyl groups in the 2 and 4 positions is selectively oxidized to a carboxy group, and optionally a hydroxymethyl group in the 4 position is selectively oxidized to a formyl group. A successive decarboxylation step for a 3-carboxy-4-hydroxybenzaldehyde produces a 4-hydroxybenzaldehyde.

    Abstract translation: PCT No.PCT / FR96 / 00779 Sec。 371日期1997年1月24日 102（e）日期1997年1月24日PCT提交1996年5月24日PCT公布。 出版物WO96 / 37454 日期：1996年11月28日本发明涉及在2位和4位含有甲酰基和/或羟甲基的酚类化合物制备3-羧基-4-羟基苯甲醛及其衍生物的方法。 本发明还涉及从3-羧基-4-羟基苯甲醛制备4-羟基苯甲醛。 更具体地，本发明涉及3-甲氧基-4-羟基苯甲醛和3-乙氧基-4-羟基苯甲醛的制备，分别称为“香草醛”和“乙基香兰素”。 3-羧基-4-羟基苯甲醛的制备方法的特征在于，在2位和4位上带有甲酰基和/或羟甲基的酚类化合物中2位的基团被选择性氧化成羧基， 4位的羟甲基被选择性氧化成甲酰基。 3-羧基-4-羟基苯甲醛的连续脱羧步骤产生4-羟基苯甲醛。

    Preparation of p-nitrophenolic compounds
    25.
    发明授权
    Preparation of p-nitrophenolic compounds 失效
    对硝基酚类化合物的制备

    公开(公告)号：US5414148A

    公开(公告)日：1995-05-09

    申请号：US249200

    申请日：1994-05-26

    Applicant: Pascal Metivier ,  Laurent Bernard

    Inventor： Pascal Metivier ,  Laurent Bernard

    IPC: C07C201/06 ,  C07C201/10 ,  C07C205/22 ,  C07C207/04 ,  C07C205/20 ,  C07C205/21 ,  C07C205/26

    CPC classification number: C07C201/00 ,  C07C201/08

    Abstract: p-Nitrophenolic compounds, e.g., p-nitrophenol itself, are selectively prepared by (a) reacting a phenolic compound with a nitrosating agent in the presence of sulfuric acid, the concentration of which H.sub.2 SO.sub.4 being at least 60%, (b) oxidizing the p-nitrosophenolic compound thus formed with nitric acid, the concentration of sulfuric acid in the medium of reaction, upon completion of oxidation, being no greater than 80%, and (c) separating the p-nitrophenolic compound which thus precipitates.

    Abstract translation: 通过（a）在硫酸存在下使酚类化合物与亚硝化剂反应，其中H 2 SO 4的浓度为至少60％，（b）将硝基酚类化合物氧化为 由硝酸形成的对亚硝基苯酚化合物，氧化后的反应介质中的硫酸浓度不大于80％，（c）分离因此析出的对硝基酚化合物。

    Cyclic (poly)glycerol sulphates and preparation and use thereof
    26.
    发明授权
    Cyclic (poly)glycerol sulphates and preparation and use thereof 有权
    环状（聚）甘油硫酸盐及其制备和用途

    公开(公告)号：US09371306B2

    公开(公告)日：2016-06-21

    申请号：US14356512

    申请日：2011-11-10

    Applicant: Pascal Metivier ,  Yan Zhao ,  Zhaoyu Fan ,  Chenjiang Zhu

    Inventor： Pascal Metivier ,  Yan Zhao ,  Zhaoyu Fan ,  Chenjiang Zhu

    IPC: C07D327/10

    CPC classification number: C07D327/10

    Abstract: The present invention relates to novel cyclic sulphates of (poly)glycerol, particularly to the novel compound of 4-(hydroxymethyl)-1,3,2-dioxathiolane-2,2-dioxide. The present invention also relates to the preparation process of the cyclic sulphate compounds, and to the use thereof as an intermediate to prepare green surfactants containing sulphate groups.

    Abstract translation: 本发明涉及（聚）甘油的新型环状硫酸盐，特别涉及4-（羟甲基）-1,3,2-二氧杂环戊烷-2,2-二氧化物的新化合物。 本发明还涉及环硫酸酯化合物的制备方法，以及作为制备含有硫酸酯基团的绿色表面活性剂的中间体的用途。

    Secure control system for opening locking devices by encrypted acoustic accreditations
    29.
    发明授权
    Secure control system for opening locking devices by encrypted acoustic accreditations 有权
    通过加密声学认证打开锁定装置的安全控制系统

    公开(公告)号：US08565725B2

    公开(公告)日：2013-10-22

    申请号：US13386232

    申请日：2010-07-16

    Applicant: Pascal Metivier

    Inventor： Pascal Metivier

    IPC: H04M1/66

    CPC classification number: G07C9/00182 ,  G07C9/00904 ,  G07C2009/00642 ,  G07C2009/00801

    Abstract: The invention relates to a system implements a mobile phone (20) available to a user (18) authorized to open a lock (22). A remote management site (10) includes a database (12) of locks and authorized users identified by the mobile phone number thereof, as well as a generator (14) of accreditation data. The accreditations are encrypted acoustic accreditations in the form of single-use audio signals, capable of enabling the opening of locks that are indexed in the database. The system includes means for securely transmitting the encrypted acoustic accreditations from the management site to the mobile phone of the corresponding authorized user via a mobile network operator (16). The lock (22) includes an electroacoustic transducer that is capable of sensing the acoustic accreditations reproduced by the telephone placed beforehand near the lock, as well as a means for recognizing, analyzing, and authenticating the sensed acoustic accreditations, and controlling the unlocking of the mechanical members upon recognizing a compliant accreditation.

    Abstract translation: 本发明涉及一种系统，其实现了授权打开锁（22）的用户（18）可用的移动电话（20）。 远程管理站点（10）包括由其移动电话号码识别的锁和授权用户的数据库（12）以及认证数据的发生器（14）。 认证是一次性音频信号形式的加密声学认证，能够打开在数据库中编入索引的锁。 该系统包括用于经由移动网络运营商（16）将来自管理站点的加密的声学认证安全地传送到相应的授权用户的移动电话的装置。 锁（22）包括电声换能器，其能够感测由预先在锁附近放置的电话再现的声学认证，以及用于识别，分析和认证感测到的声学认证的手段，以及控制解锁 机械成员认可合规认证。

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