PROCESS FOR THE PREPARATION OF VERY ACIDIC CATION EXCHANGERS
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF VERY ACIDIC CATION EXCHANGERS 审中-公开
    用于生产强酸性阳离子交换剂

    公开(公告)号:WO1997023517A1

    公开(公告)日:1997-07-03

    申请号:PCT/EP1996005784

    申请日:1996-12-20

    CPC classification number: B01J39/20 C08F8/36 C08F2800/20 C08F212/08 C08F212/36

    Abstract: The invention relates to a process for the preparation of mechanically and osmostically stable high capacitive very acidic cation exchangers with a grain size of >/= 0.1 mm by sulphonation of gel-like or porous pearl polymers with sulphuric acid without using inert chlorine-containing swelling agents and/or of co-monomers based on acrylonitril. The invention proposes that such very acidic cation exchangers can be prepared by sulphonation of gel-like and porous pearl polymers, prepared by copolymerisation of styrene and divinyl benzene with a cross-linker proportion of up to 65 % by weight of divinyl benzene with or without inert agent, with a sulphuric acid concentrated at 80-96 % at temperatures of 125-180 DEG C, the reaction period being of up to 20 h. In the new process, very acidic cation exchangers can be prepared without using the inert, chlorine-containing, ecologically-harmful swelling agent, 1,2 dichloroethane, with the same or similar quality features and substance characteristic data as products prepared using conventional processes.

    Abstract translation: 本发明涉及一种用于生产机械和渗透稳定的方法,hochkapazitativen具有由与硫酸凝胶状或多孔聚合物珠粒磺化> / = 0.1毫米的颗粒尺寸,而无需使用惰性含氯溶胀剂和/或共聚单体的丙烯腈的强酸性阳离子交换剂。 根据本发明,这样的强酸性阳离子交换剂通过由苯乙烯和二乙烯基苯与交联剂向上的共聚制备的凝胶状和多孔聚合物珠粒磺化至65重量二乙烯基苯,具有或不具有惰性气体的%,其中在125-温度80-96%的硫酸 180℃,反应时间最高达20小时,以生产。 在该新方法中,可以生产,而无需使用污染1,2-二氯乙烷具有相同或相似的质量特性和材料特性的惰性含氯溶胀剂的强酸性阳离子交换剂,例如通过常规方法生产的产品。

    PROCESS FOR THE PREPARATION OF FREE-FLOWING VERY ACIDIC CATION EXCHANGERS
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF FREE-FLOWING VERY ACIDIC CATION EXCHANGERS 审中-公开
    用于生产自由流动的强酸性阳离子

    公开(公告)号:WO1997023282A2

    公开(公告)日:1997-07-03

    申请号:PCT/EP1996005785

    申请日:1996-12-20

    CPC classification number: B01J39/20 C08F8/36 C08F2800/20 C08F212/08

    Abstract: The invention relates to a process for the preparation of free-flowing end products of very acidic cation exchangers. The grain pile of end products of the very acidic cation exchangers produced in the process described in the patent application P 195 48 012.0 cannot flow freely. By adding linking wetting agents or water-soluble initiators or tensides during polymerisation or after filtration of the end product and/or by taking technical measures, the grain pile of the very acidic cation exchangers is able to flow freely permanently or temporarily using the following process: (1) by adding to the copolymerisation system, known wetting agents in quantities of up to 0.25 g/l of the aqueous phase or water-soluble initiators in quantities of from 0.05 to 20 g/l of the aqueous phase 20 to 120 minutes after reaching the point of gelification; (2) by treating the very acidic cation exchangers with aqueous solution of surfactants with a content of from 0.1 to 5 g/l in the batch or column process; (3) by 1 to 4 hours of washing of the very acidic cation exchangers with water of at least 60 DEG C, subsequent separation off of the water and drying of the end product using sensible heat.

    Abstract translation: 本发明涉及一种用于自由流动的强酸性阳离子交换剂的最终产品的制备方法。 根据该专利申请在上述中得到的对195 48 012.0处理强酸性阳离子交换剂,其最终产品的Kornhaufwerke不能自由流动的。 Kornhaufwerke强酸性阳离子交换剂的永久或临时自由流动性通过加入在聚合或最终产品和/或工艺工程措施的过滤后的润湿剂或表面活性剂或水溶性引发剂的应用以下程序来实现的。 1.由于在加入已知的润湿剂的水相中或水溶性引发剂的至多0.25克/升的量在0.05至20g的量/水相的升深远Kopolymerisationssystem凝胶点之后是20分钟至120分钟。 2.治疗的具有0.1至5g / l的在批处理含量的表面活性物质的水溶液的强酸性阳离子交换剂 - 或柱方法。 3.1-至4小时洗涤具有至少60℃的热水的强酸性阳离子交换剂,然后通过水的分离和最终产物利用显热的干燥。

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