Method for preparing a glycol mono-tertiary-butylether compound
    2.
    发明授权
    Method for preparing a glycol mono-tertiary-butylether compound 有权
    制备二醇单叔丁基醚化合物的方法

    公开(公告)号:US08766015B2

    公开(公告)日:2014-07-01

    申请号:US14000648

    申请日:2012-02-21

    CPC classification number: C07C41/06 C07B63/00 C07C41/44 Y02P20/582 C07C43/046

    Abstract: Disclosed is a method of preparing a glycol mono-tertiary-butyl ether compound using a C4 hydrocarbon mixture containing isobutene and a glycol compound as reactants, in which a glycol di-tertiary-butyl ether compound as a byproduct is decomposed into isobutene and a glycol compound and the obtained isobutene and glycol compound are recycled as reactants, whereby product yield per unit raw material may be maximized. The method includes a catalytic reaction step for preparing a glycol mono-tertiary-butyl ether compound and a glycol di-tertiary-butyl ether compound as a byproduct by reaction between a glycol compound and a C4 hydrocarbon mixture containing isobutene in the presence of an acidic catalyst, a byproduct extraction step for separating the glycol mono-tertiary-butyl ether compound and the glycol di-tertiary-butyl ether compound, prepared through the catalytic reaction step, using a hydrophilic extractant and a lipophilic extractant, and a byproduct decomposition and recycling step for decomposing the separated glycol di-tertiary-butyl ether compound into a glycol compound and isobutene and recycling the decomposed glycol compound and isobutene as the reactants to the catalytic reaction step.

    Abstract translation: 公开了使用含有异丁烯和二醇化合物作为反应物的C4烃混合物制备二醇单叔丁醚化合物的方法,其中作为副产物的二醇二叔丁基醚化合物分解成异丁烯和二醇 化合物和所得到的异丁烯和二醇化合物作为反应物再循环,由此每单位原料的产物产率可以最大化。 该方法包括通过二元醇化合物与含有异丁烯的C4烃混合物在酸性存在下的反应来制备二醇单叔丁醚化合物和二醇二叔丁基醚化合物作为副产物的催化反应步骤 催化剂,通过催化反应步骤制备的二醇单叔丁基醚化合物和二醇二叔丁基醚化合物的副产物提取步骤,使用亲水性萃取剂和亲脂性萃取剂,以及副产物分解和再循环 将分离的二醇二叔丁醚化合物分解成二醇化合物和异丁烯并将分解的二醇化合物和异丁烯作为反应物再循环到催化反应步骤的步骤。

    Method and apparatus for classifying harmful packet
    3.
    发明授权
    Method and apparatus for classifying harmful packet 有权
    用于对有害包进行分类的方法和装置

    公开(公告)号:US08336098B2

    公开(公告)日:2012-12-18

    申请号:US12410975

    申请日:2009-03-25

    CPC classification number: H04L63/145 H04L63/0245

    Abstract: A network apparatus and method of classifying received packets in a security system, the method comprises parsing a received packet and extracting a payload from the parsed packet; scanning the payload to check whether or not a predetermined signature code is included in the payload; if it is determined from the result of the scanning that the predetermined signature code is included in the payload, generating a presumptive signature based on information included in the predetermined signature code; and determining whether or not the generated presumptive signature is identical with a signature corresponding to the predetermined signature code, and allocating an classification identifier (ID) to the received packet according to the result of the determination, thereby classifying the received packet according to the classification ID, wherein the predetermined signature code is formed by a part of the signature corresponding to the signature code.

    Abstract translation: 一种在安全系统中对接收的分组进行分类的网络装置和方法,所述方法包括解析接收的分组并从解析的分组提取有效载荷; 扫描有效载荷以检查有效载荷中是否包括预定的签名代码; 如果从扫描结果确定预定签名代码被包括在有效载荷中,则基于包括在预定签名代码中的信息生成推定签名; 以及确定所生成的假定签名是否与与预定签名代码相对应的签名相同,并且根据确定的结果向接收的分组分配分类标识符(ID),从而根据分类对接收到的分组进行分类 ID,其中所述预定签名码由与签名码相对应的签名的一部分形成。

    METHOD AND APPARATUS FOR CLASSIFYING HARMFUL PACKET
    4.
    发明申请
    METHOD AND APPARATUS FOR CLASSIFYING HARMFUL PACKET 有权
    用于分类有害分组的方法和装置

    公开(公告)号:US20100251364A1

    公开(公告)日:2010-09-30

    申请号:US12410975

    申请日:2009-03-25

    CPC classification number: H04L63/145 H04L63/0245

    Abstract: A network apparatus and method of classifying received packets based on a predetermined standard are disclosed. The method of classifying received packets in a security system, the method comprises parsing a received packet and extracting a payload from the parsed packet; scanning the payload to check whether or not a predetermined signature code is included in the payload; if it is determined from the result of the scanning that the predetermined signature code is included in the payload, generating a presumptive signature based on information included in the predetermined signature code; and determining whether or not the generated presumptive signature is identical with a signature corresponding to the predetermined signature code, and allocating an classification identifier (ID) to the received packet according to the result of the determination, thereby classifying the received packet according to the classification ID, wherein the predetermined signature code is formed by a part of the signature corresponding to the signature code. Accordingly, possible harmful packets such as attack packets can be classified at high speed, and thereby being blocked immediately.

    Abstract translation: 公开了一种基于预定标准对接收到的分组进行分类的网络装置和方法。 在安全系统中对接收到的分组进行分类的方法,该方法包括解析接收的分组并从解析的分组中提取有效载荷; 扫描有效载荷以检查有效载荷中是否包括预定的签名代码; 如果从扫描结果确定预定签名代码被包括在有效载荷中,则基于包括在预定签名代码中的信息生成推定签名; 以及确定所生成的假定签名是否与与预定签名代码相对应的签名相同,并且根据确定的结果向接收的分组分配分类标识符(ID),从而根据分类对接收到的分组进行分类 ID,其中所述预定签名码由与签名码相对应的签名的一部分形成。 因此,诸如攻击包的可能的有害数据包可以被高速分类,从而被立即被阻止。

    SEPARATION OF GLYCOL MONO-TERTIARY-BUTYL ETHER AND GLYCOL DI-TERTIARY-BUTYL ETHER
    6.
    发明申请
    SEPARATION OF GLYCOL MONO-TERTIARY-BUTYL ETHER AND GLYCOL DI-TERTIARY-BUTYL ETHER 审中-公开
    甘油单季戊四醇和甘油二叔丁基醚的分离

    公开(公告)号:US20110306803A1

    公开(公告)日:2011-12-15

    申请号:US13155517

    申请日:2011-06-08

    CPC classification number: C07C41/38 C07C43/11

    Abstract: A method of separating glycol mono-tertiary-butyl ether and glycol di-tertiary-butyl ether by an extraction process using hydrophilic and lipophilic extracting agents is disclosed. The separation method includes the step of separating a mixture including glycol mono-tertiary-butyl ether of the following Chemical formula 1 and glycol di-tertiary-butyl ether of the following Chemical formula 2 with a hydrophilic extracting agent and a lipophilic extracting agent, wherein, R1 and R2 are independently, a hydrogen atom or an alkyl group of carbon number of 1 to 5, and n is an integer of 0 to 4.

    Abstract translation: 公开了通过使用亲水和亲脂性提取剂的提取方法分离二醇单叔丁基醚和二醇二叔丁基醚的方法。 分离方法包括用亲水性萃取剂和亲油性萃取剂分离包含以下化学式1的二醇单叔丁基醚和下列化学式2的二醇二叔丁基醚的混合物的步骤,其中 R 1和R 2独立地为氢原子或碳原子数为1〜5的烷基,n为0〜4的整数。

    SIGNATURE SEARCHING METHOD AND APPARATUS USING SIGNATURE LOCATION IN PACKET
    7.
    发明申请
    SIGNATURE SEARCHING METHOD AND APPARATUS USING SIGNATURE LOCATION IN PACKET 有权
    使用签名位置在分组中的签名搜索方法和设备

    公开(公告)号:US20100275261A1

    公开(公告)日:2010-10-28

    申请号:US12763832

    申请日:2010-04-20

    CPC classification number: H04L63/145

    Abstract: A method of and apparatus for searching for a signature in a packet according to a signature location. The method may include extracting a sub-payload to be compared with a signature from a payload of a packet, generating an offset that is location information about a location of the sub-payload in the payload, generating a search key that includes the extracted sub-payload and the generated offset, and performing ternary content addressable memory (TCAM) matching to check if the generated search key matches a TCAM entry.

    Abstract translation: 根据签名位置在分组中搜索签名的方法和装置。 该方法可以包括提取要与来自分组的有效载荷的签名进行比较的子有效载荷,生成作为有效负载中的子有效载荷的位置的位置信息的偏移量,生成包括提取的子数据的搜索关键字 -payload和生成的偏移量,并执行三元内容可寻址存储器(TCAM)匹配,以检查生成的搜索关键字是否与TCAM条目匹配。

    METHOD FOR PREPARING A GLYCOL MONO-TERTIARY-BUTYLETHER COMPOUND
    8.
    发明申请
    METHOD FOR PREPARING A GLYCOL MONO-TERTIARY-BUTYLETHER COMPOUND 有权
    制备甘油单酯 - 丁基化合物的方法

    公开(公告)号:US20130331613A1

    公开(公告)日:2013-12-12

    申请号:US14000648

    申请日:2012-02-21

    CPC classification number: C07C41/06 C07B63/00 C07C41/44 Y02P20/582 C07C43/046

    Abstract: Disclosed is a method of preparing a glycol mono-tertiary-butyl ether compound using a C4 hydrocarbon mixture containing isobutene and a glycol compound as reactants, in which a glycol di-tertiary-butyl ether compound as a byproduct is decomposed into isobutene and a glycol compound and the obtained isobutene and glycol compound are recycled as reactants, whereby product yield per unit raw material may be maximized. The method includes a catalytic reaction step for preparing a glycol mono-tertiary-butyl ether compound and a glycol di-tertiary-butyl ether compound as a byproduct by reaction between a glycol compound and a C4 hydrocarbon mixture containing isobutene in the presence of an acidic catalyst, a byproduct extraction step for separating the glycol mono-tertiary-butyl ether compound and the glycol di-tertiary-butyl ether compound, prepared through the catalytic reaction step, using a hydrophilic extractant and a lipophilic extractant, and a byproduct decomposition and recycling step for decomposing the separated glycol di-tertiary-butyl ether compound into a glycol compound and isobutene and recycling the decomposed glycol compound and isobutene as the reactants to the catalytic reaction step.

    Abstract translation: 公开了使用含有异丁烯和二醇化合物作为反应物的C4烃混合物制备二醇单叔丁醚化合物的方法,其中作为副产物的二醇二叔丁基醚化合物分解成异丁烯和二醇 化合物和所得到的异丁烯和二醇化合物作为反应物再循环,由此每单位原料的产物产率可以最大化。 该方法包括通过二元醇化合物与含有异丁烯的C4烃混合物在酸性存在下的反应来制备二醇单叔丁醚化合物和二醇二叔丁基醚化合物作为副产物的催化反应步骤 催化剂,通过催化反应步骤制备的二醇单叔丁基醚化合物和二醇二叔丁基醚化合物的副产物提取步骤,使用亲水性萃取剂和亲脂性萃取剂,以及副产物分解和再循环 将分离的二醇二叔丁醚化合物分解成二醇化合物和异丁烯并将分解的二醇化合物和异丁烯作为反应物再循环到催化反应步骤的步骤。

    Signature searching method and apparatus using signature location in packet
    9.
    发明授权
    Signature searching method and apparatus using signature location in packet 有权
    使用签名位置的签名搜索方法和装置

    公开(公告)号:US08407794B2

    公开(公告)日:2013-03-26

    申请号:US12763832

    申请日:2010-04-20

    CPC classification number: H04L63/145

    Abstract: A method of and apparatus for searching for a signature in a packet according to a signature location. The method may include extracting a sub-payload to be compared with a signature from a payload of a packet, generating an offset that is location information about a location of the sub-payload in the payload, generating a search key that includes the extracted sub-payload and the generated offset, and performing ternary content addressable memory (TCAM) matching to check if the generated search key matches a TCAM entry.

    Abstract translation: 根据签名位置在分组中搜索签名的方法和装置。 该方法可以包括提取要与来自分组的有效载荷的签名进行比较的子有效载荷,生成作为有效负载中的子有效载荷的位置的位置信息的偏移量,生成包括提取的子数据的搜索关键字 -payload和生成的偏移量,并执行三元内容可寻址存储器(TCAM)匹配,以检查生成的搜索关键字是否与TCAM条目匹配。

    METHOD FOR PREPARING HIGH PURITY ISOBUTENE USING GLYCOLETHER
    10.
    发明申请
    METHOD FOR PREPARING HIGH PURITY ISOBUTENE USING GLYCOLETHER 有权
    使用甘油醚制备高纯度保鲜剂的方法

    公开(公告)号:US20130324781A1

    公开(公告)日:2013-12-05

    申请号:US14000095

    申请日:2012-02-17

    Abstract: Disclosed is a method of preparing isobutene in which high-purity isobutene is separated (prepared) from a C4 mixture by cracking glycol ether prepared from a C4 mixture (in particular, C4 raffinate-1) containing isobutene and a glycol. The method includes cracking glycol ether into isobutene and glycol at a temperature between 50° C. and 300° C. in the presence of a strongly acidic catalyst. The glycol ether may be prepared by reaction between a C4 mixture containing isobutene and glycol in the presence of an acid catalyst.

    Abstract translation: 公开了一种制备异丁烯的方法,其中通过裂解由含有异丁烯和二醇的C4混合物(特别是C4萃余液-1)制备的二醇醚,从C4混合物中分离(制备)高纯度异丁烯。 该方法包括在强酸性催化剂存在下,在50℃至300℃的温度下将乙二醇醚裂化成异丁烯和二醇。 乙二醇醚可以通过在酸催化剂存在下在含有异丁烯和二醇的C4混合物之间进行反应来制备。

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