Biocatalytic production of phenolic resins with ramped peroxide addition
    2.
    再颁专利
    Biocatalytic production of phenolic resins with ramped peroxide addition 失效
    生物催化生产酚醛树脂,加入过氧化氢

    公开(公告)号:USRE35247E

    公开(公告)日:1996-05-21

    申请号:US270867

    申请日:1994-07-05

    CPC classification number: C12P7/22

    Abstract: A process for preparing a phenolic resin which comprises preparing a reaction medium containing a phenol and a peroxidase enzyme and adding a solution of a peroxide to said medium, said peroxide being added to said medium at a rate which decreases from an initial rate of about 2 to 3 millimolar/min as the amount of phenol in said medium decreases such that the concentration of peroxide does not exceed about 12 millimolar.

    Abstract translation: 一种制备酚醛树脂的方法,包括制备含有苯酚和过氧化物酶的反应介质,并向所述介质中加入过氧化物溶液,所述过氧化物以从约2的初始速率降低的速率加入到所述介质中 至3毫摩尔/分钟,因为所述介质中苯酚的量减少,使得过氧化物的浓度不超过约12毫摩尔。

    Method for deinking printed waste paper using soybean peroxidase
    3.
    发明授权
    Method for deinking printed waste paper using soybean peroxidase 失效
    使用大豆过氧化物酶对印刷废纸进行脱墨的方法

    公开(公告)号:US5370770A

    公开(公告)日:1994-12-06

    申请号:US973725

    申请日:1992-11-09

    CPC classification number: D21C5/027 D21C5/005 Y02W30/648

    Abstract: A method of deinking printed waste paper for recycle which comprises converting a printed waste paper to a fibrous pulp in an aqueous medium to form a fibrous pulp slurry; contacting the slurry with a soybean peroxidase and a peroxide to deink the pulp; separating the deinked pulp from the aqueous medium; and recovering the deinked pulp.

    Abstract translation: 一种用于再循环的印刷废纸脱墨方法,包括将印刷废纸转化为水介质中的纤维纸浆以形成纤维纸浆; 使浆料与大豆过氧化物酶和过氧化物接触以使纸浆脱墨; 将脱墨纸浆与水性介质分离; 并回收脱墨纸浆。

    Biocatalytic production of phenolic resins with ramped peroxide addition
    5.
    发明授权
    Biocatalytic production of phenolic resins with ramped peroxide addition 失效
    生物催化生产酚醛树脂,加入过氧化氢

    公开(公告)号:US5278055A

    公开(公告)日:1994-01-11

    申请号:US895905

    申请日:1992-06-09

    CPC classification number: C12P7/22

    Abstract: A process for preparing a phenolic resin which comprises preparing a reaction medium containing a phenol and a peroxidase enzyme and adding a solution of a peroxide to said medium, said peroxide being added to said medium at a rate which decreases from an initial rate of about 2 to 3 millimolar/min as the amount of phenol in said medium decreases such that the concentration of peroxide does not exceed about 12 millimolar.

    Abstract translation: 一种制备酚醛树脂的方法,包括制备含有苯酚和过氧化物酶的反应介质,并向所述介质中加入过氧化物溶液,所述过氧化物以从约2的初始速率降低的速率加入到所述介质中 至3毫摩尔/分钟,因为所述介质中苯酚的量减少,使得过氧化物的浓度不超过约12毫摩尔。

    Method for removing impurities from peroxidase solutions
    8.
    发明授权
    Method for removing impurities from peroxidase solutions 失效
    从过氧化物酶溶液中除去杂质的方法

    公开(公告)号:US4992372A

    公开(公告)日:1991-02-12

    申请号:US305311

    申请日:1989-02-02

    CPC classification number: C12N9/0065 Y10S435/814 Y10S435/816

    Abstract: A method for purifying an aqueous peroxidase enzyme containing solution and peroxidase solution purified thereby are disclosed; the method includes the steps of:providing an aqueous solution containing a peroxidase enzyme;adding a water-immiscible or partially water-miscible organic solvent to said aqueous solution to form a mixture having an organic phase and an aqueous phase;agitating said mixture to extract impurities from said aqueous phase into said organic phase;separating said aqueous phase from said organic phase; anddiscarding said organic phase.

    Abstract translation: 公开了一种纯化过氧化物酶水溶液和由此提纯过氧化物酶溶液的方法, 该方法包括以下步骤:提供含有过氧化物酶的水溶液; 向所述水溶液中加入与水不混溶或部分水混溶的有机溶剂以形成具有有机相和水相的混合物; 搅拌所述混合物以将杂质从所述水相中提取到所述有机相中; 将所述水相与所述有机相分离; 并丢弃所述有机相。

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