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1.发明授权
公开(公告)号：US4300939A
公开(公告)日：1981-11-17
申请号：US164698
申请日：1980-06-30
Applicant: Martin Hater , Fritz Meininghaus , Rudiger Scheel
Inventor： Martin Hater , Fritz Meininghaus , Rudiger Scheel
CPC classification number: C05B5/00 , Y10S210/907
Abstract: A method for processing waste sludge from wet phosphoric acid purification facilities wherein steelworks slag is separately ground, the ground slag then is force-mixed and granulated together with the waste sludge.
Abstract translation: 一种用于处理来自湿式磷酸净化设备的废渣的方法，其中钢厂渣分开研磨，然后与废渣一起强力混合并造粒。
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2.发明授权
公开(公告)号：US4257898A
公开(公告)日：1981-03-24
申请号：US99530
申请日：1979-12-03
Applicant: Peter Meurer , Martin Hater , Fritz Meininghaus , Rudiger Scheel
Inventor： Peter Meurer , Martin Hater , Fritz Meininghaus , Rudiger Scheel
CPC classification number: C05B5/00 , Y10S210/907
Abstract: The invention relates to a method of processing the waste sludge obtained in purification facilities for phosphoric acid produced by the wet process. The composition of this sludge is such that it cannot be utilized for any purpose in this state. It is known that sludge from wet phosphoric acid purification facilities contains different quantities of certain substances, the concentrations being such that these substances may not be allowed to mix with surface water or ground water under any circumstances, not even in the case of dumps. A typical composition of such waste sludge is as follows:______________________________________ Fe 9.0% by weight P.sub.2 O.sub.5 21.0% by weight CaO 6.2% by weight SiO.sub.2 12.5% by weight MgO 5.8% by weight Al.sub.2 O.sub.3 2.7% by weight Cr.sub.2 O.sub.3 0.7% by weight V.sub.2 O.sub.5 0.6% by weight Na.sub.2 O 18.0% by weight K.sub.2 O 0.3% by weight F 1.7% by weight C 2.5% by weight S 0.3% by weight Remainder* 18.7% by weight 100.0% by weight ______________________________________ *The remainder consists mainly of hydration water and carbonate that did not decompose at a temperature of 105.degree. C.
Abstract translation: 本发明涉及一种在湿法生产的磷酸净化设备中得到的废污泥处理方法。 这种污泥的组成使得在这种状态下不能用于任何目的。 已知来自湿磷酸净化设备的污泥含有不同数量的某些物质，其浓度使得这些物质在任何情况下都不得与地表水或地下水混合，即使在倾倒的情况下也不允许与地表水或地下水混合。 这种废污泥的典型组成如下：-Fe 9.0重量％-P 2 O 5 21.0重量％-CaO 6.2重量％-SiO 2 12.5重量％-Mg 5.8 5.8重量％-Al 2 O 3 2.7重量％-Cr 2 O 3 0.7 重量％-V2O5 0.6重量％-Na2O 18.0重量％K2O 0.3重量％-F 1.7重量％-C 2.5重量％-S 0.3重量％剩余量18.7重量％-100.0重量％ 重量 - *其余部分主要由在105℃温度下分解的水合水和碳酸盐组成。
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3.再颁专利
公开(公告)号：USRE31179E
公开(公告)日：1983-03-15
申请号：US289378
申请日：1981-08-03
Applicant: Peter Meurer , Martin Hater , Fritz Meininghaus , Rudiger Scheel
Inventor： Peter Meurer , Martin Hater , Fritz Meininghaus , Rudiger Scheel
CPC classification number: C05B5/00 , Y10S210/907
Abstract: The invention relates to a method of processing the waste sludge obtained in purification facilities for phosphoric acid produced by the wet process. The composition of this sludge is such that it cannot be utilized for any purpose in this state. It is known that sludge from wet phosphoric acid purification facilities contains different quantities of certain substances, the concentrations being such that these substances may not be allowed to mix with surface water or ground water under any circumstances, not even in the case of dumps. A typical composition of such waste sludge is as follows:______________________________________ Fe 9.0% by weight P.sub.2 O.sub.5 21.0% by weight CaO 6.2% by weight SiO.sub.2 12.5% by weight MgO 5.8% by weight Al.sub.2 O.sub.3 2.7% by weight Cr.sub.2 O.sub.3 0.7% by weight V.sub.2 O.sub.5 0.6% by weight Na.sub.2 O 18.0% by weight K.sub.2 O 0.3% by weight F 1.7% by weight C 2.5% by weight S 0.3% by weight Remainder* 18.7% by weight 100.0% by weight ______________________________________ *The remainder consists mainly of hydration water and carbonate that did not decompose at a temperature of 105.degree. C.
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