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    • 1. 发明公开
    • All-purpose adhesive material and process for its production
    • Allzweckklebematerial und Verfahren zu dessen Herstellung
    • EP1156092A1
    • 2001-11-21
    • EP00110738.2
    • 2000-05-19
    • Garcia, Fernando H.Pieroni, ArmandoBartolomei, Carlo Alfredo
    • Garcia, Fernando H.Pieroni, ArmandoBartolomei, Carlo Alfredo
    • C09J1/00C04B28/30C04B11/28C04B9/06
    • C04B28/30C04B9/00C04B2111/00637C09J1/00C04B11/262C04B14/30C04B20/0048C04B40/065C04B22/06C04B9/06C04B9/12
    • An all-purpose two-component adhesive material and a process for its production that can be used both for fastening together flexible and porous material, such as for example wood, plastics, fabric, as well as for joining stiff material such as metal, stone. In particular the process can also be carried out using as reagents compounds resulting from processes of neutralization of exhausted sulphuric acid. In large amount adhesive material can be used to make coating material, such as tiles, whereas in different concentration the adhesive material can be used as fire-retardant varnish. The adhesive material is formed by: a first component that is an aqueous solution, having concentration higher than 5% in weight, of a sulphate, chloride, nitrate, acetate of magnesium or zinc; and a second component that is a mixture of magnesium oxide MgO, metal hydroxides, calcium sulphate hemi-hydrated. The magnesium or zinc salt are chosen among MgSO 4 , MgCl 2 ; MgNO 3 ; Mg(CH 3 COO) 2 , ZnSO 4 , ZnCl 2 ; ZnNO 3 ; Zn(CH 3 COO) 2 . In the second component the metal hydroxides are chosen among Mg(OH) 2 ; Al(OH) 3 ; Fe(OH) 3 ; Ti(OH) 4 .
    • 一种通用的双组分粘合剂材料及其生产方法,其可用于将柔性和多孔材料(例如木材,塑料,织物)以及用于连接刚性材料如金属,石头 。 特别地,该方法也可以使用由中和硫酸的中和产生的试剂化合物进行。 大量的粘合材料可用于制造涂料如瓷砖,而不同浓度的粘合剂材料可用作阻燃清漆。 粘合剂材料通过以下方式形成:作为水溶液的第一成分,其浓度高于5重量%的硫酸盐,氯化物,硝酸盐,镁或锌的乙酸盐; 和第二组分,其是氧化镁MgO,金属氢氧化物,半水合的硫酸钙的混合物。 镁盐或锌盐选自MgSO 4,MgCl 2; MgNO3; Mg(CH 3 COO)2,ZnSO 4,ZnCl 2; ZnNO3; 的Zn(CH 3 COO)2等。 在第二组分中,金属氢氧化物选自Mg(OH)2; 的Al(OH)3; 的Fe(OH)3; 的Ti(OH)4。
    • 3. 发明公开
    • Process for the production of di-hydrated calcium sulfate from exhausted sulfuric acid
    • on ure on on ure ure ure ure ure ure ure ure ure ure ure ure ure ure ure ure ure ure
    • EP1123901A1
    • 2001-08-16
    • EP00830095.6
    • 2000-02-10
    • Garcia, Fernando H.Pieroni, ArmandoBartolomei, Carlo Alfredo
    • Garcia, Fernando H.Pieroni, ArmandoBartolomei, Carlo Alfredo
    • C01F11/46
    • C01B13/36C01F5/30C01F5/40C01F11/46C04B11/262C04B28/142C04B33/13C04B40/0268
    • A process for neutralising exhausted sulphuric acid by means of production of di-hydrated calcium sulphate that provides the feeding of sulphuric acid (1) and of a soluble calcium salt (2) in a precipitator (3) for the precipitation of di-hydrated calcium sulphate, which is filtrated in a decantation plant (4), washed (5) and then dried (6,7,8). In the precipitator (4) a liquid acid phase and metal salts in solution remain. The calcium salt (2) can be obtained in a reactor (10) by a ion exchange reaction between a calcium ore (11) based on calcium carbonate and an exchanging acid that is stored (9) downstream the precipitator (3, 4) as liquid phase separated from the calcium sulphate (6) obtaining carbon dioxide (12). In a reactor (13) calcium hydroxide is added (14), whereby the metal hydroxides precipitate and decant in the plant (15). The calcium salt in solution is then stored in the starting reservoir (2). The di-hydrated calcium sulphate has acicular crystals of high quality, whereas the metal hydroxides can be calcinated and with the metal oxides resulting therefrom brick material can be obtained for the building industry.
    • 通过生产二水合硫酸钙来中和排出的硫酸的方法,其提供在沉淀器(3)中供给硫酸(1)和可溶性钙盐(2)以沉淀二水合钙 硫酸盐,其在倾析植物(4)中过滤,洗涤(5)然后干燥(6,7,8)。 在沉淀器(4)中,液态酸相和溶液中的金属盐残留。 钙盐(2)可以在反应器(10)中通过基于碳酸钙的钙矿石(11)与在沉淀器(3,4)下游储存的交换酸(9)之间的离子交换反应获得,如 液相与硫酸钙(6)分离得到二氧化碳(12)。 在反应器(13)中加入氢氧化钙(14),由此金属氢氧化物在植物中沉淀并倾析(15)。 然后将溶液中的钙盐储存在起始储存器(2)中。 二水合硫酸钙具有高品质的针状晶体,而金属氢氧化物可以被煅烧,并且由此产生的金属氧化物可以获得用于建筑工业的砖材料。