USE OF A COMPONENT IN LOW-SURFACTANT DETERGENTS AND PROCESS FOR MAKING SAID COMPONENT
    1.
    发明申请
    USE OF A COMPONENT IN LOW-SURFACTANT DETERGENTS AND PROCESS FOR MAKING SAID COMPONENT 审中-公开
    低表面活性剂成分中组分的使用和制备成分的方法

    公开(公告)号:WO2016084036A1

    公开(公告)日:2016-06-02

    申请号:PCT/IB2015/059160

    申请日:2015-11-27

    Abstract: A component for detergents having the form of a gel comprises water in a weight percentage between the 70% and 95%; nanoparticles, preferably of amorphous silica or of aluminium hydroxide, of size between 5 and 250, in particular between 20 and 100 nanometres; selective anions selected from the group consisting of: HCO 3 -, CIO - , CH 3 COO - , OCO 2 O = , C 6 H 5 O 7 3- , CH 3 COOO-, adsorbed on the nanoparticles. By adding a certain an amount of gel to the conventional detergents, detergents are obtained that have lower critical micellar concentration (CMC) values, therefore a higher detergent power. By another point of view, the gel drastically reduces the presence of surfactants in the common detergents, while maintaining the detergent power, with the advantage of reducing the environmental impact and the production cost. A process to obtain this component provides mixing a water solution of a nanoparticles-forming compound, in particular silicate of Li, preferably Na or K, or a soluble aluminium salt with a pH higher than a minimum predetermined value, with a gelling agent configured to cause the pH to decrease, and amorphous silica or of aluminium hydroxide to precipitate, respectively said gelling agent selected from the group consisting of: chlorine; carbon dioxide; sodium hydroxide; a compound as a organic acid or inorganic, or a salt, soluble in water adapted to provide, starting from a concentration between 1N and 5N, a solution having pH lower than or equal to 9; and gelling the gelification mixture obtained forming a gel of nanoparticles that have a size set between 5 and 250 nanometres. The process provides also adsorbing said selective anions on the nanoparticles. The adsorption of the anions can be effected in situ during the mixing/gelling, in particular with a gelling agent as CO 2 and CI 2 adapted to releasing the selective anions, or it can be effected on an already formed gel.

    Abstract translation: 具有凝胶形式的洗涤剂组分包括重量百分比在70%至95%之间的水; 尺寸为5至250,特别是20至100纳米的纳米颗粒,优选无定形二氧化硅或氢氧化铝; 选自由选自HCO3-,CIO-,CH3COO-,OCO2O =,C6H5O7 3-,CH3COOO-,吸附在纳米颗粒上的阴离子。 通过向常规洗涤剂中加入一定量的凝胶,获得具有较低临界胶束浓度(CMC)值的洗涤剂,因此具有较高的洗涤剂功率。 另一方面,凝胶显着降低了常用洗涤剂中表面活性剂的存在,同时保持了洗涤剂的功率,同时具有降低环境影响和生产成本的优点。 获得该组分的方法提供了将纳米颗粒形成化合物的水溶液,特别是Li的硅酸盐,优选Na或K混合,或者将pH值高于最低预定值的可溶性铝盐与配制成 导致pH降低,无定形二氧化硅或氢氧化铝沉淀,所述胶凝剂分别选自:氯; 二氧化碳; 氢氧化钠; 作为有机酸或无机的化合物或可溶于水的盐,适于从1N和5N之间的浓度开始提供pH低于或等于9的溶液; 并且将获得的凝胶化混合物凝胶化,形成尺寸设定在5和250纳米之间的纳米颗粒凝胶。 该方法还在纳米颗粒上吸附所述选择性阴离子。 阴离子的吸附可以在混合/胶凝期间原位实现,特别是作为适于释放选择性阴离子的CO 2和Cl 2的胶凝剂,或者可以在已经形成的凝胶上进行。

    A METHOD FOR TREATING A WASTE CONTAINING SULFURIC ACID
    2.
    发明申请
    A METHOD FOR TREATING A WASTE CONTAINING SULFURIC ACID 审中-公开
    一种处理含有硫酸的废物的方法

    公开(公告)号:WO2016067085A1

    公开(公告)日:2016-05-06

    申请号:PCT/IB2015/001996

    申请日:2015-10-27

    Abstract: A method for treating a waste material (20) containing sulfuric acid and metal ions, as In the case of the waste material the production of the T1O2, provides mixing to the waste material (20) an alkaline reagent (10), selected among a hydroxide of an alkaline metal such as Mg, Zn, Sn, adapted to selectively precipitate (300) the cations as hydroxides, thus obtaining a first mixture (21) having a higher pH that contains a solution (22) of a sulfate and/or oxysulfate of the metal and solid hydroxides (23) of the metal cations that are separated from the first mixture (21) and can be used in metal sulfates production process. The method also comprises mixing the solution (22) with a precipitation agent (31), thus forming a second mixture (32) in which the sulfate and/or oxysulfate precipitates and is removed (301), heated, reduced and decomposed (400) by means of a reducing agent (41) selected among elemental sulfur, hydrogen and a reducing flame, thus obtaining SO 2 (42) available for making H 2 SO 4 , and a solid oxide (43) of the metal of the alkaline reagent that is recycled (101) as alkaline reagent (10) in the step (200) of mixing with the waste material (20). Advantageously, a step (350) is provided of recovering precipitation agent (31) from the water of second mixture (32), after removing (301) the sulfate and/or oxysulfate, and a step (351) is also provided of recycling the regenerated precipitation agent (31), In particular, an alcohol as ethyl alcohol, used as the precipitation agent (31), can be easily regenerated by distillation, exploiting low temperature-heat, which is largely available from a possible sulfuric acid production plant close to the plant that producing the sulfuric waste material (20). The method according to the invention makes it possible to eliminate the sludge resulting from the sulfuric waste material treatment, while recovering valuable compounds.

    Abstract translation: 一种用于处理含有硫酸和金属离子的废料(20)的方法,如在废物的情况下,生成T1O2,向废料(20)提供碱性试剂(10),该碱性试剂(10)选自 适于选择性沉淀(300)阳离子为氢氧化物的碱金属如Mg,Zn,Sn的氢氧化物,从而获得具有较高pH值的第一混合物(21),其含有硫酸盐溶液(22)和/或 与第一混合物(21)分离的金属阳离子的金属和固体氢氧化物(23)的硫代硫酸盐,可用于金属硫酸盐生产过程。 该方法还包括将溶液(22)与沉淀剂(31)混合,从而形成第二混合物(32),其中硫酸盐和/或氧代硫酸盐沉淀并除去(301),加热,还原和分解(400) 通过从元素硫,氢和还原火焰中选择的还原剂(41),从而获得可用于制备H 2 SO 4的SO 2(42)和再循环的碱性试剂的金属的固体氧化物(43)(101 )作为与废料(20)混合的步骤(200)中的碱性试剂(10)。 有利地,提供步骤(350),在除去(301)硫酸盐和/或硫酸氢盐之后,从第二混合物(32)的水中回收沉淀剂(31),并且还提供步骤(351) 再生沉淀剂(31)特别是用作沉淀剂(31)的醇作为乙醇,可以通过蒸馏容易地再生,开发低温热,这在很大程度上可以从可能的硫酸生​​产装置中获得 到生产硫酸废料(20)的工厂。 根据本发明的方法可以在回收有价值的化合物的同时,消除由硫酸废料处理产生的污泥。

Patent Agency Ranking