Nitrated Extreme Pressure Additives
    191.
    发明申请
    Nitrated Extreme Pressure Additives 有权
    硝化极压添加剂

    公开(公告)号:US20070099803A1

    公开(公告)日:2007-05-03

    申请号:US11626502

    申请日:2007-01-24

    Applicant: Duong Nguyen

    Inventor: Duong Nguyen

    Abstract: This invention relates to processes for making nitro compounds derived from C2-C30 unsaturated fatty acids; C2-C30 unsaturated fatty oils; esters derived from the reaction of C1-C20 alcohols with unsaturated C2-C30 fatty acids; C2-C20 polyolefins; C4-C20 polydiolefins; C8-C20 copolymers derived from polyolefins and vinyl aromatics; and C4-C30 alkylated phenols using nitric acid or gaseous nitrogen dioxide. This class of extreme-pressure additives was found extremely effective in processing steel, stainless steel and special titanium and nickel or low-iron alloys.

    Abstract translation: 本发明涉及制备衍生自C 2 -C 30不饱和脂肪酸的硝基化合物的方法; C 2 -C 30不饱和脂肪油; 衍生自C 1 -C 20 -C 20醇与不饱和C 2 -C 30脂肪酸的反应的酯; C 2 -C 20聚烯烃; C 4 -C 20二聚烯烃; 衍生自聚烯烃和乙烯基芳族化合物的C 8 -C 20 -C 20共聚物; 和C 4 -C 30烷基化的酚,使用硝酸或二氧化氮气体。 发现这类极压添加剂在加工钢,不锈钢和特殊的钛和镍或低铁合金方面非常有效。

    Process for the production of dinitrotoluene
    192.
    发明授权
    Process for the production of dinitrotoluene 有权
    生产二硝基甲苯的方法

    公开(公告)号:US07041858B1

    公开(公告)日:2006-05-09

    申请号:US11054012

    申请日:2005-02-09

    CPC classification number: C07C201/08 C07C205/06

    Abstract: The present invention is directed to a process for the isothermal nitration of aromatic organic compounds, wherein an aromatic organic compound is brought into contact and reacted with a mixture of sulfuric acid and nitric acid. The mixture of sulfuric acid and nitric acid, and the aromatic organic compound are brought into contact with each other through a mixing nozzle which comprises a substantially cylindrical tubular reactor and an annular gap which surrounds the tubular reactor. The aromatic organic compound flows through the tubular reactor, and the mixture of sulfuric acid and nitric acid flows through the annular gap, and they are mixed together upon emerging from the tubular reactor and the annular gap, wherein the ratio of the average rates of flow of the aromatic organic compound in the tubular reactor, and of the mixture of sulphuric acid and nitric acid in the annular gap ranges from 0.5:1 to 10:1.

    Abstract translation: 本发明涉及芳族有机化合物的等温硝化方法,其中使芳族有机化合物与硫酸和硝酸的混合物接触并反应。 硫酸和硝酸的混合物和芳香族有机化合物通过混合喷嘴相互接触,所述混合喷嘴包括基本上圆柱形的管式反应器和围绕管状反应器的环形间隙。 芳族有机化合物流过管状反应器,硫酸和硝酸的混合物流过环形间隙,并且在从管式反应器和环形间隙出现时将它们混合在一起,其中平均流速 的管状反应器中的芳族有机化合物,以及环状间隙中的硫酸和硝酸的混合物的范围为0.5:1至10:1。

    Process for producing 2,5-bis(trifluoromethyl)nitrobenzene
    194.
    发明授权
    Process for producing 2,5-bis(trifluoromethyl)nitrobenzene 有权
    制备2,5-双(三氟甲基)硝基苯的方法

    公开(公告)号:US06930214B2

    公开(公告)日:2005-08-16

    申请号:US10883820

    申请日:2004-07-06

    Applicant: Tamaki Shimizu

    Inventor: Tamaki Shimizu

    CPC classification number: C07J75/00 C07C201/08 C07J73/00 C07C205/11

    Abstract: A process to produce 2,5-bis(trifluoromethyl)nitrobenzene in a high yield from an industrially easily available material by using a substance with which the reaction operation is simple and handling is easy, with a small number of steps under moderate reaction conditions, is provided. 1,4-bis(trifluoromethyl)benzene is nitrated by means of nitric acid in a solvent comprising as an essential component an acid selected from sulfuric acid having a sulfuric acid concentration of from 91 to 100 mass % and fuming sulfuric acid having a sulfur trioxide concentration of higher than 0 mass % and at most 20 mass %.

    Abstract translation: 通过使用反应操作简单并且处理容易的物质,在中等反应条件下以少量的步骤从工业上容易获得的材料中以高产率制备2,5-双(三氟甲基)硝基苯的方法, 被提供。 1,4-二(三氟甲基)苯通过硝酸在含有选自硫酸浓度为91〜100质量%的硫酸和三氧化硫的发烟硫酸作为必需成分的溶剂中进行硝化 浓度高于0质量%,最多为20质量%。

    Process for the preparation of nitroalkenes
    199.
    发明申请
    Process for the preparation of nitroalkenes 审中-公开
    硝基烯烃的制备方法

    公开(公告)号:US20040006248A1

    公开(公告)日:2004-01-08

    申请号:US10311319

    申请日:2002-12-30

    CPC classification number: C07C201/08 C07C2602/28 C07D311/58 C07C205/05

    Abstract: A process for the nitration of conjugated alkenes of formula (I) wherein R, R1, R2, R3 and R4 have the meanings reported in the description, which allows to obtain the corresponding null-nitro-alkenes, characterised in that the nitrating agent is a mixture of an inorganic nitrite and iodine in the presence of an oxidising agent is described. 1

    Abstract translation: 用于硝化式(I)的共轭烯的方法,其中R,R 1,R 2,R 3和R 4具有在说明书中报道的含义,其允许获得相应的β-硝基 - 烯烃,其特征在于硝化剂是 描述了在氧化剂存在下无机亚硝酸盐和碘的混合物。

    Continuous adiabatic process for nitrating chlorobenzene
    200.
    发明申请
    Continuous adiabatic process for nitrating chlorobenzene 失效
    硝化氯苯的连续绝热过程

    公开(公告)号:US20030181771A1

    公开(公告)日:2003-09-25

    申请号:US10360192

    申请日:2003-02-06

    CPC classification number: C07C201/08 C07C205/12

    Abstract: The present invention relates to a continuous adiabatic process for preparing nitrochlorobenzene in the presence of phosphoric acid. The waste acid produced during the practice of the process is reconcentrated and recycled into the nitration reaction.

    Abstract translation: 本发明涉及在磷酸存在下制备硝基氯苯的连续绝热方法。 在该过程的实践过程中产生的废酸被再浓缩并再循环到硝化反应中。

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