Preparation of multi-trace element fertilizers
    4.
    发明授权
    Preparation of multi-trace element fertilizers 失效
    多元素肥料的制备

    公开(公告)号:US4395273A

    公开(公告)日:1983-07-26

    申请号:US322672

    申请日:1981-11-18

    IPC分类号: C05D9/02 C05D5/00

    CPC分类号: C05D9/02 Y10S71/02

    摘要: A multi-trace element fertilizer which contains magnesium as a further nutrient and in which the complex-forming trace elements are present in the form of anionic chelates with one or more N-carboxyalkylaminoacids is prepared by a process wherein the N-carboxyalkylaminoacids are reacted, in the presence of water, with the trace elements or trace element compounds in a molar ratio of N-carboxyalkylaminoacids to trace elements or trace element compounds of not less than 0.8:1, at least 20% by weight of the trace element compounds being oxides, hydroxides and/or carbonates. At the same time, or subsequently, the pH of the solution is brought to 3.5-6 by adding a member selected from the group consisting of magnesium oxide, hydroxide and carbonate. A maximum of 50 equivalent percent of the magnesium compound may however be replaced by a member selected from the group consisting of alkali metal oxides, hydroxides and carbonates and ammonia.

    摘要翻译: 含有镁作为另外的营养物并且其中复合物形成的微量元素以一种或多种N-羧基烷基氨基酸形式的阴离子螯合物的形式存在的多元素肥料通过其中N-羧基烷基氨基酸反应的方法制备, 在水的存在下,微量元素或微量元素化合物与N-羧基烷基氨基酸与微量元素或微量元素化合物的摩尔比不小于0.8:1,至少20重量%的微量元素化合物是氧化物 ,氢氧化物和/或碳酸盐。 同时或随后,通过加入选自氧化镁,氢氧化物和碳酸盐的组分使溶液的pH达到3.5-6。 然而,镁化合物的最多50当量%可以由选自碱金属氧化物,氢氧化物和碳酸盐和氨的成员代替。

    Method for producing highly pure lithium salts
    6.
    发明授权
    Method for producing highly pure lithium salts 失效
    生产高纯度锂盐的方法

    公开(公告)号:US06592832B1

    公开(公告)日:2003-07-15

    申请号:US09623110

    申请日:2000-08-29

    IPC分类号: C01D1500

    CPC分类号: C01D15/08 B01J39/04 C01D15/04

    摘要: A process for preparing a high purity lithium salt from lithium carbonate comprises steps A to D as defined hereinbelow: A: treating a mixture comprising lithium carbonate and water by means of CO2 to obtain an aqueous mixture comprising lithium bicarbonate, B: passing said aqueous mixture comprising lithium bicarbonate through an ion exchanger module, C: precipitating lithium carbonate from the ion exchange module treated lithium bicarbonate mixture obtained in step B, and D: working up the precipitated lithium carbonate or converting the precipitated lithium carbonate into some other high purity lithium salt.

    摘要翻译: 由碳酸锂制备高纯度锂盐的方法包括步骤A至D,如下所述:A:用CO 2处理包含碳酸锂和水的混合物,得到包含碳酸氢锂的水性混合物,B:通过所述含水混合物 包括通过离子交换器模块的碳酸氢锂,C:从步骤B中获得的离子交换模块处理的碳酸氢锂混合物中沉淀碳酸锂,以及D:处理沉淀的碳酸锂或将沉淀的碳酸锂转化成一些其它高纯度锂盐。

    Use of carboxyamide-polysiloxanes for water proofing leather
    7.
    发明授权
    Use of carboxyamide-polysiloxanes for water proofing leather 有权
    使用羧酰胺 - 聚硅氧烷防水皮革

    公开(公告)号:US06110230A

    公开(公告)日:2000-08-29

    申请号:US297920

    申请日:1999-07-16

    IPC分类号: C08G77/388 C14C9/00

    CPC分类号: C14C9/00 C08G77/388

    摘要: Specific carboxyamide-polysiloxanes of the formula IV ##STR1## or the formula IVa ##STR2## having a carboxyl content of from 0.02 to 1.0 mmol/g and an average molar mass (number average) [M.sub.n ] in the range from 2.times.10.sup.3 to 60.times.10.sup.3 g/mol are used for hydrophobicizing materials of fibrous structure, especially leather or fur skins.

    摘要翻译: PCT No.PCT / EP97 / 06348 371日期:1999年7月16日 102(e)日期1999年7月16日PCT 1997年11月13日PCT公布。 第WO98 / 21369号公报 日期1998年5月22日具有式IV的羧酸酰胺 - 聚硅氧烷或羧基含量为0.02〜1.0mmol / g,平均摩尔质量(数均)[Mn]为2×10 3〜60×10 3 g / mol 用于纤维结构材料的疏水化,特别是皮革或毛皮。