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    • 1. 发明授权
    • Apparatus for fumigating waste waters
    • 用于补充废水的装置
    • US5213717A
    • 1993-05-25
    • US837338
    • 1992-02-14
    • Wilhelm P. DoppelfeldWerner PieperWilhelm GiechauHilmar Roszinski
    • Wilhelm P. DoppelfeldWerner PieperWilhelm GiechauHilmar Roszinski
    • C02F3/20
    • C02F3/205C02F3/20Y02W10/15
    • An apparatus is provided for fumigating waste waters in a fumigation tank with fumigation enclosures (gas manifolds which are situated in parallel next to one another and at a distance from one another and rest horizontally, in whose upper sides gas outlet openings are situated and whose undersides are open, wherein mobile rotation bodies rotated by gas flow are situated for cleaning purposes in the gas outlet openings 13 of the fumigation enclosures 14 and the gas outlet openings 13 each have, in a known manner, a central countersunk section 12 enclosing an angle .alpha. of, for example, 90 to 180.degree. underneath and the remaining wall thickness 15 of the gas outlet opening 13 of each countersunk section 12 amounts to 0.5 to 2 mm. The rotation body according to the invention may comprise a top section 1 and a base section 3 which are joined to a neck section 2.
    • 提供了一种用于熏蒸熏蒸箱中的废水的设备,其具有熏蒸箱(气体歧管,它们彼此相邻并且彼此间隔一定距离并且水平地搁置,其上侧气体出口开口位于其下面) 打开,其中通过气流旋转的移动旋转体被设置用于清洁目的,在熏蒸箱14的气体出口开口13中,气体出口开口13各自以已知方式具有包围角度α的中心埋头部分12 例如在下面的90〜180度,每个埋头部12的气体出口13的剩余壁厚15为0.5〜2mm,根据本发明的旋转体可以包括顶部1和基部 部分3连接到颈部2。
    • 2. 发明授权
    • Process for purifying wet-processed phosphoric acid
    • 净化湿法磷酸的方法
    • US4556548A
    • 1985-12-03
    • US557349
    • 1983-12-01
    • Reinhard GradlHilmar Roszinski
    • Reinhard GradlHilmar Roszinski
    • C01B25/01C01B25/46C01B25/16C01B15/16C01B25/26C01F1/00
    • C01B25/01C01B25/461C01B25/462
    • The disclosure relates to a process for purifying crude, concentrated wet-processed phosphoric acid. To this end, the disclosure provides:(a) for the organic solvent to be mixed with the starting product in a ratio by volume of more than 4:1 to effect in a single process step the extraction--from the crude wet-processed phosphoric acid--of a quantity of phosphoric acid necessary for 40 to 70 weight % of the P.sub.2 O.sub.5 used to go into the organic phase, and for the resulting aqueous phosphoric acid raffinate to contain at most 28-32 weight % P.sub.2 O.sub.5, and for the organic phosphoric acid solution to be separated from the phosphoric acid raffinate;(b) for the separated organic phosphoric acid solution to be scrubbed with a quantity of scrubbing solution corresponding at most to 5% of the volume of the phosphoric acid solution; for the scrubbing solution to be recycled into stage (a), and for purified phosphoric acid and phosphate salt solution, respectively, to be recovered in known manner from the scrubbed phosphoric acid solution;(c) for the aqueous phosphoric acid raffinate produced in stage (a) to be neutralized, if desired, after prior removal of residual solvent, for it to be subjected to treatment with an alkaline agent with the resultant formation of a purified phosphate salt solution and precipitation of a so-called neutralization sludge, and(d) for said neutralization sludge and simultaneously obtained alkali metal phosphate solution to be separated from each other, for the sludge to be mixed with finely ground phosphate ore, and for the mixture to be made into phosphate pellets for use in electrothermal phosphorus production.
    • 本公开涉及纯化粗浓缩湿法磷酸的方法。 为此,本公开内容提供:(a)使有机溶剂与起始产物以体积比大于4:1的比例混合,以在单一工艺步骤中从粗制湿法磷酸 酸为一定量的磷酸,用于进入有机相中的40〜70重量%的P2O5,所得到的磷酸提取液含有最多28-32重量%的P2O5,对于有机磷酸 酸性溶液与磷酸提余液分离; (b)对于待洗涤的分离的有机磷酸溶液,其量为相当于磷酸溶液体积的至多5%的洗涤溶液; 将洗涤溶液再循环到阶段(a)中,分别用纯化的磷酸和磷酸盐溶液从已洗涤的磷酸溶液中以已知方式回收; (c)如果需要,在步骤(a)中制备的磷酸残液水溶液在预先除去残留溶剂之后,用碱性试剂处理,形成纯化的磷酸盐溶液 和所谓的中和污泥的沉淀,(d)对于所述中和污泥并同时获得的碱金属磷酸盐溶液彼此分离,用于与精细研磨的磷酸盐矿石混合的污泥,混合物为 制成用于电热磷生产的磷酸盐颗粒。
    • 4. 发明授权
    • Production of O,O-dialkylthionophosphoric acid chlorides
    • 制备O,O-二硫代磷酸酰氯
    • US4078023A
    • 1978-03-07
    • US717086
    • 1976-08-24
    • Bernd LippsmeierHilmar RoszinskiHans-Werner Stephan
    • Bernd LippsmeierHilmar RoszinskiHans-Werner Stephan
    • C07F9/20
    • C07F9/20
    • O,O-dialkylthionophosphoric acid chlorides are produced by chlorinating a dialkyldithiophosphoric acid in two stages. In the first stage, the acid is reacted with chlorine in a molar ratio of 1:1.15 to 1:1.50, resulting sulfur is separated, the liquid phase is admixed with a distilled product of a previous batch chlorinated in the second stage and with a further 0.25 to 0.7 mol of O,O-dialkyldithiophosphoric acid per mol of acid initially used, and desirable final product is distillatively separated from said mixture. In the second stage, the distillation residue of the first stage is reacted with a total proportion of 0.9 to 1.0 mol of chlorine per mole of acid initially used, precipitated sulfur is separated from the second stage chlorination product, the liquid phase is distilled off, and resulting distillate is recycled to the first chlorination stage.
    • O,O-二硫代磷酸酰氯是通过二级氯化二烷基二硫代磷酸制备的。 在第一阶段中,酸与氯以摩尔比1:1.15至1:1.50反应,得到硫分离,将液相与前一批在第二阶段氯化的蒸馏产物混合,并加入 最初使用的每摩尔酸还含有0.25-0.7摩尔的O,O-二烷基二硫代磷酸,并将所需的最终产物与所述混合物蒸馏分离。 在第二阶段,第一阶段的蒸馏残余物与最初使用的每摩尔酸的总比例为0.9至1.0摩尔氯,将沉淀的硫从第二阶段氯化产物中分离出来,蒸出液相, 并将得到的馏出物再循环到第一个氯化阶段。