Process for the production of crystalline aspartic acid
    51.
    发明授权
    Process for the production of crystalline aspartic acid 失效
    生产结晶天冬氨酸的方法

    公开(公告)号:US6071728A

    公开(公告)日:2000-06-06

    申请号:US331899

    申请日:1999-10-18

    摘要: The invention provides a process for the preparation of aspartic acid via a fermentation process for the preparation of ammonia fumarate, wherein the pH of the fermentation broth is controlled by the addition of a calcium base to produce a calcium fumarate precipitate, characterized in that ammonium fumarate is produced by separating the precipitated calcium fumarate from the fermentation broth, and reacting the same with a reagent selected from ammonia, ammonium carbonate, ammonia in combination with CO.sub.2 and mixtures therefore, to form ammonium fumarate and a co-product selected from calcium carbonate and calcium hydroxide, wherein the energy of indirect neutralization of fumaric acid by ammonia serves as the driving force for the conversion of calcium fumarate to the desired ammonium fumarate product and for the regeneration of a calcium base reagent, and wherein diammonium fumarate is enzymatically converted to ammonium aspartate and acidulated to from aspartic acid.

    摘要翻译: PCT No.PCT / US98 / 00290 Sec。 371 1999年10月18日第 102(e)1999年10月18日PCT PCT 1998年1月8日PCT公布。 出版物WO98 / 30712 PCT 日期1998年7月16日本发明提供了一种通过用于制备富马酸铵的发酵方法制备天冬氨酸的方法,其中通过加入钙碱来控制发酵液的pH以产生富马酸钙沉淀物, 其特征在于富马酸铵是通过从发酵液中分离出沉淀的富马酸钙,并将其与选自氨,碳酸铵,氨与二氧化碳和其混合物的试剂反应而生成的,从而形成富马酸铵和共产物 选自碳酸钙和氢氧化钙,其中通过氨间接中和富马酸的能量用作将富马酸钙转化为所需的富马酸铵产物和再生钙碱试剂的驱动力,并且其中富马酸二铵 酶促转化为天冬氨酸铵,并酸化至天冬氨酸 d。

    Biomass Energy Recovery Apparatus
    60.
    发明申请
    Biomass Energy Recovery Apparatus 有权
    生物质能回收装置

    公开(公告)号:US20090031934A1

    公开(公告)日:2009-02-05

    申请号:US12173251

    申请日:2008-07-15

    IPC分类号: F23G5/24 F23G5/46 F23J15/02

    摘要: An apparatus for extracting energy from fiber introduced as a fuel into a vertically elongated combustion chamber having a suspension burner capable of projecting a flame down the axis of the combustion chamber with a heat collection surface located radially from the flame and below the burner, and an exhaust opening located below the flame and below at least a portion of the heat collection surface, in which the combusted fiber yields a mixture containing hot flue gas and molten ash above the exhaust opening and heat transfers therefrom to the heat collection surface prior to any substantial contact of ash to a surface of the combustion chamber, to yield a mixture containing warm flue gas and non-molten ash, that is thereafter cooled to yield a mixture containing cool flue gas and non-molten ash.

    摘要翻译: 一种用于从作为燃料引入的纤维中提取能量的装置,其具有能够沿着燃烧器的轴线位于燃烧室的轴线处的火焰下方的集热表面而将火焰向下突出的悬架燃烧器, 排气开口位于火焰下方并且在集热表面的至少一部分下方,其中燃烧的纤维产生含有热烟道气和在排气口上方的熔融灰分的混合物,并且在任何实质的 将灰分与燃烧室的表面接触,得到含有热烟气和非熔融灰的混合物,然后冷却,得到含有冷烟道气和非熔融灰的混合物。