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    Process for extractive fermentation
    5.
    发明授权
    Process for extractive fermentation 失效
    萃取发酵方法

    公开(公告)号：US4865973A

    公开(公告)日：1989-09-12

    申请号：US896002

    申请日：1986-08-13

    申请人： Finn Kollerup ,  Andrew J. Daugulis

    发明人： Finn Kollerup ,  Andrew J. Daugulis

    IPC分类号： C12P1/00 ,  C12P7/06

    CPC分类号： C12P7/06 ,  C12P1/00 ,  Y02E50/17 ,  Y10S203/14 ,  Y10S435/813 ,  Y10S435/822 ,  Y10S435/911 ,  Y10S435/917 ,  Y10S435/935 ,  Y10S435/942

    摘要： A process for producing a variety of chemical products, e.g., ethanol, by fermentation in which the product is removed from the fermentation medium as it is formed by liquid-liquid extraction using an extractant for the product which is immiscible with water. The extractant employed is chosen from the following groups: (A) double bond unsaturated aliphatic alcohols having 12 or more carbon atoms; (B) saturated branched chain aliphatic alcohols having 14 or more carbon atoms or mixtures thereof; (C) double bond unsaturated aliphatic acids having 12 or more carbon atoms; (D) aliphatic and aromatic mono-, di- or tri-esters having 12 or more carbon atoms, other than dibutyl phthalate; (E) aliphatic noncyclic ketones and aliphatic aldehydes having 12 or more carbon atoms; and (F) mixtures of extractants from groups (A) to (E) above or mixtures of at least one of the above extractants and at least one other extractant. These extractants are non-toxic to microorganisms used for fermentation, have little tendency to form emulsions and are otherwise suited for the process. The liquid-liquid extraction may thus be carried out in situ in the fermentor, preferably in a continuous stirred tank fermentor.

    摘要翻译： 通过发酵生产各种化学产品例如乙醇的方法，其中通过使用与水不混溶的产物的萃取剂通过液 - 液萃取形成产物，从发酵培养基中除去产物。 所用萃取剂选自以下组：（A）具有12个或更多个碳原子的双键不饱和脂族醇; （B）具有14个或更多个碳原子的饱和支链脂族醇或其混合物; （C）具有12个或更多个碳原子的双键不饱和脂族酸; （D）除了邻苯二甲酸二丁酯以外的具有12个或更多个碳原子的脂族和芳族一，二或三酯; （E）具有12个或更多个碳原子的脂族非环酮和脂族醛; 和（F）来自上述组（A）至（E）的萃取剂的混合物或至少一种上述萃取剂和至少一种其它萃取剂的混合物。 这些萃取剂对用于发酵的微生物无毒性，几乎没有形成乳液的倾向，并且适用于该方法。 因此，液 - 液提取可以在发酵罐中原位进行，优选在连续搅拌罐发酵罐中进行。

    Treatment of pulp mill wastes
    6.
    发明授权
    Treatment of pulp mill wastes 失效
    处理粉末废物

    公开(公告)号：US3737374A

    公开(公告)日：1973-06-05

    申请号：US3737374D

    申请日：1971-07-22

    申请人： BETZ LABORATORIES

    发明人： STERN A ,  GASNER L

    IPC分类号： C02F9/00 ,  C12N1/22 ,  C12P7/46 ,  C12B1/00

    CPC分类号： C12P7/46 ,  C02F2103/28 ,  C12N1/22 ,  Y10S210/917 ,  Y10S210/928 ,  Y10S435/823 ,  Y10S435/877 ,  Y10S435/917 ,  Y10S435/935

    摘要： THE PRESENT DISCLOSURE IS DIRECTED TO A METHOD WITH A TWO-FOLD OBJECTIVE. AS IS WELL KNOWN, PULP MILL WASTES WHICH ARE PRIMARILY COMPOSED OF LIGNIN ARE DARK IN COLOR AND EXTREMELY RESISTANT TO BIODEGRADATION. ACCORDINTLY, THE DISCHARGE OF THESE WASTES TO ANY NATURAL WATERWAYS IS LIMITED BY LEGISLATION. THE PRESENT INVENTION PROVIDES A METHOD FOR IMPROVING THE COLOR CHARACTERISTICS OF THE WASTE AND FOR UTILIZING THE PRODUCT OR MATERIAL OBTAINED THEREBY TO PRODUCE VALUABLE AND UTILIZABLE MATERIALS OR CHEMICALS. BASICALLY, THE METHOD ENTAILS CONTACTING AN OXIDATIVELY TREATED WASTE AND, MORE SPECIFICIALLY, AN OXIDATIVELY TREATED WASTE LIGNIN WITH A MICROBIAL POPULATION FOR A TIME AND AT CONDITIONS NECESSARY TO CONVERT SAID OXIDATIVELY TREATED LIGNIN TO THE UTILIZABLE END PRODUCTS. EXAMPLES OF UTILIZABLE PRODUCTS WHICH CAN BE OBTAINED IN THIS MANNER ARE ORGANIC ACIDS, BIOPOLERS, PROTEINS, ANTINBIOTICS, STEROIDS, VITAMINS, FERTILIZERS, ETC.