Process for preparing aromatic hydrocarbons
    1.
    发明授权
    Process for preparing aromatic hydrocarbons 失效
    制备芳香烃的方法

    公开(公告)号:US5073652A

    公开(公告)日:1991-12-17

    申请号:US586343

    申请日:1990-09-21

    CPC分类号: C07C5/417 Y02P20/52

    摘要: The aromatic hydrocarbons rich in benzene, toluene and xylene are prepared from a hydrocarbon feed having from 6 to 12 carbon atoms by feeding the hydrogen in admixture with hydrogen in a ratio ranging from 0 to less than 1 mole with respect to each mole of the hydrocarbon, into contact with a catalyst prepared by depositing at least one metal belonging to group VIII of the periodic table on a macroporous zeolite treated with a halogenated compound. The aromatic hydrocarbons rich in benzene, toluene and xylene are useful as a base for high octane number gasoline or as petrochemical raw materials.

    Method of culturing amino acid racemase-producing microorganism of genus
pseudomonas
    2.
    发明授权
    Method of culturing amino acid racemase-producing microorganism of genus pseudomonas 失效
    培养假单胞菌属氨基酸消旋酶产生微生物的方法

    公开(公告)号:US4906572A

    公开(公告)日:1990-03-06

    申请号:US021356

    申请日:1987-03-03

    IPC分类号: C12N1/20 C12N9/90 C12R1/38

    摘要: A method of culturing an amino acid racemaseproducing microorganism of the genus Pseudomonas, which comprising culturing said microorganism in a culture medium containing at least one compound selected from the group consisting of glycerol, ethanol, tartaric acid, fumaric acid and succinic acid as a carbon source, and recovering microorganism cells containing the amino acid racemase in an increased amount.

    摘要翻译: 一种培养假单胞菌属的氨基酸消化生成微生物的方法,其包括在含有至少一种选自甘油,乙醇,酒石酸,富马酸和琥珀酸作为碳源的化合物的培养基中培养所述微生物 并且以增加的量回收含有氨基酸消旋酶的微生物细胞。

    Process for preparing of aromatic hydrocarbons
    3.
    发明授权
    Process for preparing of aromatic hydrocarbons 失效
    芳烃的制备方法

    公开(公告)号:US5321179A

    公开(公告)日:1994-06-14

    申请号:US1394

    申请日:1993-01-06

    申请人: Junichi Kanai

    发明人: Junichi Kanai

    摘要: A process for producing modified crystalline galloalumino silicate having the ZSM-5 crystal structure, and a process for producing aromatic hydrocarbons by the use of a catalyst containing the above modified crystalline galloalumino silicate are disclosed. The modified crystalline galloalumino silicate having the ZSM-5 type crystal structure is produced by calcining galloalumino silicate having the ZSM-5 type crystal structure as obtained by the hydrothermic reaction, at a temperature of 700 to 1,000.degree. C. The aromatic hydrocarbons are produced by contacting hydrocarbons having 2 to 12 carbon atoms with a catalyst containing the above modified crystalline galloalumino silicate.

    摘要翻译: 公开了一种制备具有ZSM-5晶体结构的改性结晶镓铝硅酸盐的方法,以及通过使用含有上述改性结晶镓酸铝硅酸盐的催化剂制备芳族烃的方法。 具有ZSM-5型晶体结构的改性结晶镓铝硅酸盐通过在700〜1000℃的温度下煅烧通过水热反应得到的具有ZSM-5型晶体结构的镓酸铝硅酸盐而制备。芳烃由 将具有2至12个碳原子的烃与含有上述改性的结晶镓铝硅酸盐的催化剂接触。

    Cultivation of transformed microorganisms
    4.
    发明授权
    Cultivation of transformed microorganisms 失效
    转化微生物的培养

    公开(公告)号:US5279951A

    公开(公告)日:1994-01-18

    申请号:US519776

    申请日:1990-05-07

    摘要: A process for cultivating a microorganism transformed with a recombinant plasmid at least containing (a) a DNA fragment containing a promoter and a regulator gene tnaC located downstream of the promoter in a tryptophanase operon (tna), and (b) a DNA fragment containing a desired structural gene which can be expressed by the promoter, which comprises cultivating the transformed microorganism in a culture medium while adding glucose as a carbon source continuously or intermittently so that the concentration of glucose is maintained within the range of 0.01 to 0.3%, and thereby allowing the desired structural gene to be expressed in the microorganism.

    摘要翻译: 培养用重组质粒转化的微生物的方法,所述重组质粒至少含有(a)含有启动子的DNA片段和位于启动子下游的色氨酸酶操纵子(tna)中的调节基因tnaC,和(b)含有 可以由启动子表达的所需结构基因,其包括在连续或间歇地添加作为碳源的葡萄糖的同时在培养基中培养转化的微生物,使得葡萄糖的浓度保持在0.01〜0.3%的范围内,由此 使所需的结构基因在微生物中表达。

    Aluminogallosilicates of the mfi type
    10.
    发明授权
    Aluminogallosilicates of the mfi type 失效
    mfi型铝硅酸盐硅酸盐

    公开(公告)号:US4994254A

    公开(公告)日:1991-02-19

    申请号:US322988

    申请日:1989-03-14

    IPC分类号: C07C2/00 C10G35/06

    CPC分类号: C10G35/065 C07C2/00

    摘要: A high-octane gasoline is produced by the conversion of a light hydrocarbon containing C.sub.2 -C.sub.7 paraffins and/or C.sub.2 -C.sub.7 olefins using a crystalline aluminogallosilicate catalyst of the formula:aM.sub.2/n O bAl.sub.2 O.sub.3 Ga.sub.2 O.sub.3 cSiO.sub.2 dH.sub.2 Owherein M is a metal selected from an alkali metal, an alkaline earth metal and a mixture thereof, n is the valence of said metal, a is a positive number of (b+1).+-.3.0, b is between 1 and 6, c is between 80 and 490, d is between 1 and 200, c/(b+1) is between 40 and 70, and c/b is between 46.7-140.

    摘要翻译: 通过使用下式的结晶铝硅酸盐催化剂转化含有C 2 -C 7链烷烃和/或C 2 -C 7烯烃的轻烃来生产高辛烷值汽油:其中M是选自以下的金属:aM2 / nObAl2O3 Ga2O3cSiO2dH2O 碱金属,碱土金属及其混合物,n是所述金属的化合价,a是正数(b + 1)+/- 3.0,b在1和6之间,c在80和490之间, d在1和200之间,c /(b + 1)在40和70之间,c / b在46.7-140之间。