利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

54 条记录 (耗时 0.019 秒)

    Method of treating polyaluminium compounds
    31.
    发明申请
    Method of treating polyaluminium compounds 审中-公开
    处理聚铝化合物的方法

    公开(公告)号：US20060231496A1

    公开(公告)日：2006-10-19

    申请号：US11393995

    申请日：2006-03-30

    申请人： Kjell Andersson ,  Erik Lindgren

    发明人： Kjell Andersson ,  Erik Lindgren

    IPC分类号： C02F1/42

    CPC分类号： B01J41/04 ,  C01F7/007

    摘要： The present invention relates to a method of treating polyaluminium compounds comprising contacting at least one polyaluminium compound in an aqueous solution with an anion exchange material capable of accepting anions or anionic groups and donating hydroxyl ions for a time necessary to obtain a polyaluminium compound having a higher molar ratio of hydroxide to aluminium than the polyaluminium compound had before contacting it with the anion exchange material.

    摘要翻译： 本发明涉及一种处理聚铝化合物的方法，包括使水溶液中的至少一种聚铝化合物与能够接受阴离子基团或阴离子基团的阴离子交换材料接触一段时间以获得具有较高浓度的聚铝化合物所需的时间 在与阴离子交换材料接触之前，氢氧化物与铝的摩尔比高于聚铝化合物。

    Process for preparing sulfate-containing basic solutions of polyaluminumchloride
    32.
    发明授权
    Process for preparing sulfate-containing basic solutions of polyaluminumchloride 失效
    制备聚氯化铝的含硫酸盐碱性溶液的方法

    公开(公告)号：US06241958B1

    公开(公告)日：2001-06-05

    申请号：US08107656

    申请日：1993-08-12

    申请人： Gerhard Haake ,  Gunter Geiler ,  Frank Haupt

    发明人： Gerhard Haake ,  Gunter Geiler ,  Frank Haupt

    IPC分类号： C01B1745

    CPC分类号： C01F7/007 ,  C01F7/56 ,  C01P2004/61 ,  C02F1/5245

    摘要： The process of preparing a solution of basic sulfate-containing polyaluminum chloride includes digesting an aluminum-containing substance with hydrochloric acid to form a resulting solution and an insoluble residue; filtering the resulting solution to separate the insoluble residue therefrom and to form a solids-free solution; concentrating the solids-free solution by evaporation to form a concentrated solution having an AlCl3 content of about 30 percent by weight; recovering AlCl3·6 H2O from the concentrated solution by crystallization; thermally decomposing the recovered AlCl3·6 H2O by heating at 150 to 200° C. so as to form a solid basic aluminum chloride containing Al and OH in a molar ratio of OH/Al of 1.35:1 to 2.25:1; dissolving the solid basic aluminum chloride in an aqueous sulfuric acid solution and heat-treating at 40 ° C. to 70 ° C. for 1 to 3 hours to form a solution of basic sulfate-containing polyaluminum chloride having a sulfate content of 1 to 6 percent by weight, an aluminum concentration of 3 to 10 percent by weight and a molar ratio of OH/Al in the solution of the basic sulfate-containing polyaluminum chloride from 1.05:1 to 1.95:1.

    摘要翻译： 制备含碱性硫酸盐的聚氯化铝溶液的方法包括用盐酸消化含铝物质以形成所得溶液和不溶残留物; 过滤所得溶液以从其中分离不溶性残余物并形成无固体的溶液; 通过蒸发浓缩无固体溶液以形成AlCl 3含量为约30重量％的浓缩溶液; 通过结晶从浓缩溶液中回收AlCl3.6H2O; 通过在150至200℃下加热热分解回收的AlCl 3·6H 2 O，以形成OH / Al摩尔比为1.35:1至2.25:1的Al和OH的固体碱性氯化铝; 将固体碱性氯化铝溶解在硫酸水溶液中，并在40℃至70℃下热处理1至3小时，以形成硫酸盐含量为1至6的含碱性硫酸盐的聚氯化铝溶液 重量百分比，铝浓度为3〜10重量％，碱性硫酸盐聚合氯化铝溶液中OH / Al的摩尔比为1.05：1〜1.95：1。

    Water treatment
    40.
    发明授权
    Water treatment 失效
    水处理

    公开(公告)号：US4131545A

    公开(公告)日：1978-12-26

    申请号：US792573

    申请日：1977-05-02

    申请人： William H. Redmayne ,  David Berry

    发明人： William H. Redmayne ,  David Berry

    IPC分类号： C01F7/00 ,  C01F11/46 ,  C02F1/52 ,  C02B1/20

    CPC分类号： C02F1/5245 ,  C01F11/46 ,  C01F7/007 ,  Y10S210/907

    摘要： Phosphate containing basic aluminum solutions are provided by reaction aluminum sulphate solution with phosphoric acid, adding chloride, basifying by precipitation of calcium sulphate from solution and cooling the resultant solution in a controlled manner. Preferably addition of chloride and basification occurs at a temperature of 80.degree.-90.degree. C and the solution is cooled to below 60.degree. C soon after the basifying salts have been introduced. The solutions, preferably diluted to an aluminum content of 1 to 2% Al.sub.2 O.sub.3 are useful for clarifying water and dewatering sewage sludge.

    摘要翻译： 含有碱性铝溶液的磷酸盐由反应硫酸铝溶液与磷酸一起提供，加入氯化物，通过从溶液中沉淀出硫酸钠碱化并以受控的方式冷却所得溶液。 优选加入氯化物和碱化在80-90℃的温度下进行，并且在引入碱化盐后不久将溶液冷却至低于60℃。 优选稀释至1％至2％Al2O3的铝含量的溶液可用于澄清污水和脱水污泥。