METHOD FOR PRODUCING N-PHOSPHONOMETHYLGLYCINE
    3.
    发明申请
    METHOD FOR PRODUCING N-PHOSPHONOMETHYLGLYCINE 审中-公开
    获得N-磷酸乙二醇甘氨酸的方法

    公开(公告)号:WO03000704A3

    公开(公告)日:2003-05-01

    申请号:PCT/EP0206903

    申请日:2002-06-21

    CPC classification number: C07F9/3813

    Abstract: The invention relates to a method for producing N-phosphonomethylglycine from an aqueous mixture containing N-phosphonomethylglycine, ammonium halogenides and alkali halides or earth alkali halides and optionally, organic impurities in a dissolved form. According to the invention, (a) the pH-value of the mixture is regulated to a value of 2 - 8, (b) the mixture is separated by means of a selective nano-filtration membrane, to obtain a retentate rich in N-phosphonomethylglycine and poor in halogenides and a permeate rich in halogenides and poor in N-phosphonomethylglycine and (c) the N-phosphonmethylglycine is prepared from the retentate. The inventive method enables the production of N-phosphonomethylglycine by simultaneously separating the halogenide salts thereof.

    Abstract translation: 本发明涉及一种方法,用于N-膦酰甲基甘氨酸的从含有N-膦酰,卤化铵和碱金属或碱土金属的卤化物以及任选的溶解的有机杂质的含水混合物,其包含(a)所述混合物的pH至一个值的恢复 在2至8的范围内设定,(b)将该混合物在选择性纳米过滤膜的分离使得得到的N-膦酰甲基甘氨酸渗透物中卤化物在N-膦酰甲基甘氨酸更丰富和更差的以卤化物渗余物和更丰富和更差的 和(c)从渗余物中回收N-膦酰基甲基甘氨酸。 本发明的方法允许回收N-膦酰基甲基甘氨酸并同时除去卤化物盐。

    METHOD FOR PRODUCING SODIUM DITHIONITE
    6.
    发明申请
    METHOD FOR PRODUCING SODIUM DITHIONITE 审中-公开
    用于生产钠

    公开(公告)号:WO2006048293A3

    公开(公告)日:2007-02-15

    申请号:PCT/EP2005011786

    申请日:2005-11-03

    CPC classification number: C01B17/66

    Abstract: The invention relates to a method for producing sodium dithionite comprising the steps (a) production of a synthesis batch consisting of sodium formate, sulphur dioxide and an alkaline sodium compound in an aqueous methanol solvent, which forms a sodium dithionite mother liquor, (b) separation of the sodium dithionite from the sodium dithionite mother liquor, leaving a residual mother liquor, (c) separation of methanol from the residual mother liquor, (d) separation of the residual mother liquor into a first sub-stream that is rich in thiosulphate and a second sub-stream that is devoid of thiosulphate, but contains formate by means of a nanofiltration, (e) concentration of sodium formate in the second sub-stream and (f) return of the concentrated second sub-stream to step (a).

    Abstract translation: 本发明涉及一种方法,用于生产亚硫酸氢钠,其包括(a)的创建从甲酸钠,二氧化硫和在下形成连二亚硫酸钠母液的含水甲醇溶液中的碱性钠化合物的合成方法的步骤,(b)由连二亚硫酸钠中分离钠 母液,其中的残留母液得到的,(c)从所述残留母液中分离甲醇,(d)分离在thiosulfatreichen第一部分流的残余母液和硫代硫酸盐,甲酸盐第二部分气流通过纳滤,(e)的浓度 钠第二部分流中和(f)回收浓缩第二部分流的过程中步骤(a)。

    METHOD FOR PROCESSING NAPHTHA
    7.
    发明申请
    METHOD FOR PROCESSING NAPHTHA 审中-公开
    一种用于处理石脑油

    公开(公告)号:WO2004069962A8

    公开(公告)日:2005-08-18

    申请号:PCT/EP2004000602

    申请日:2004-01-24

    CPC classification number: B01D61/362 C10G7/00 C10G7/08 C10G9/00 C10G31/11

    Abstract: Disclosed is a method for processing naphtha, according to which a) naphtha or a stream generated from naphtha in a preprocessing step is divided into a stream A that is stripped of aromatics and a stream B which is enriched with aromatics in a membrane unit, the aromatics concentration in stream A ranging from 2 to 12 percent by weight (step a); b) partial stream A is directed at least in part into a steam cracker (step b); c) partial stream B is directed at least in part into a unit in which said stream B is divided into a stream C or several streams C' C'', C''',..., which has/have a lower aromatics content than stream B, and a stream D or several streams D', D'', D''',..., which has/have a higher aromatics content than stream B, by means of a thermal process (step c); d) stream C or at least one of the streams C', C'', C''' is delivered as a whole or in part to the feed for the steam cracker or directly to the steam cracker (step d).

    Abstract translation: 一种用于石脑油的后处理,其中a)石脑油或在膜单元中芳烃的贫流A石脑油料流的前处理工序和芳烃富流B中产生的电流被分离,过程,其中的芳族化合物重量浓度在流A的2至12 .-%是(步骤a),b)将部分流一个是至少部分地在蒸汽裂化器(部分流b的步骤c是b))的至少部分地在其通过热过程以相反的分离的单元中执行执行 当前B芳烃的贫流C或多个流C'C“”,C“”“ ...,各自的下芳族化合物含量低于流B包括,并且在过电流乙芳烃富集流D或多个流D” ,D“”,D“”“ ...每个都具有具有如流B(步骤c)的芳族化合物的含量较高,d)中的流C或流C的至少一个”,C‘’,C‘’” 每个完全OD 它部分供给到进料至蒸汽裂化器或蒸汽裂化器本身(步骤d)。

    PROCEDIMIENTO PARA LA ELABORACION DE LA NAFTA.

    公开(公告)号:ES2283974T3

    公开(公告)日:2007-11-01

    申请号:ES04705010

    申请日:2004-01-24

    Applicant: BASF AG

    Abstract: Procedimiento para la separación de nafta, en el que a) se separa nafta o una corriente de nafta, generada en una etapa de tratamiento previo, en una unidad de membrana, en una corriente A, empobrecida en hidrocarburos aromáticos y en una corriente B, enriquecida en hidrocarburos aromáticos, siendo la concentración de los hidrocarburos aromáticos en la corriente A desde un 2 hasta un 12 % en peso, b) la corriente parcial A se envía, al menos en parte, hasta una unidad de craqueo con vapor, c) la corriente parcial B se envía, al menos en parte, hasta una unidad, en la que se separa, por medio de un procedimiento térmico, en una corriente C empobrecida en hidrocarburos aromáticos, frente a la corriente B o en varias corrientes C'', C", C"'', ... que presentan, respectivamente, contenidos en hidrocarburos aromáticos menores que la corriente B, y en una corriente D enriquecida en hidrocarburos aromáticos, frente a la corriente B o en varias corrientes D'', D", D''", ... que presentan, respectivamente, contenidos en hidrocarburos aromáticos mayores que la corriente B, d) la corriente C o bien al menos una de las corrientes C'', C", C"'' se alimenta, respectivamente, en su totalidad o en parte, a la alimentación de la unidad de craqueo con vapor o a la propia unidad de craqueo con vapor.

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