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公开(公告)号：US09828471B2
公开(公告)日：2017-11-28
申请号：US14483933
申请日：2014-09-11
申请人： PRAYON TECHNOLOGIES
发明人： Alain Germeau , Bernard Heptia
CPC分类号： C08G79/04 , B01J8/025 , B01J8/0278 , B01J10/00 , B01J19/24 , B01J19/26 , B01J2219/00157 , C01B25/24
摘要： A method and device for producing polyphosphoric acid burns a fuel in combustion air in a combustion chamber, sprays a spray fluid comprising substantially pure orthophosphoric acid and undertakes polymerization-condensation of the pure orthophosphoric acid. A polyphosphoric acid in the form of an acid mist accompanied by formation of gases which mix with combustion gases resulting from burning of the fuel is formed to reach a predetermined temperature, wherein the mixture causes sudden lowering of combustion gas temperature. The acid mix is separated from the gas mixture and the polyphosphoric acid is collected at a bottom of the combustion chamber and the gas mixture is outputted via a lower part of the combustion chamber separate from the collection of polyphosphoric acid.
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公开(公告)号：US09731969B2
公开(公告)日：2017-08-15
申请号：US14416166
申请日：2013-07-26
发明人： Wouter Ducheyne , Christian Stevens
IPC分类号： C01B25/24 , C01B25/234 , C09K5/16 , C01B25/18
CPC分类号： C01B25/234 , C01B25/18 , C01B25/24 , C09K5/16 , Y02P20/129
摘要： This invention relates generally to new findings to improve a method of thermal energy storage or heat pump, i.e. increase the thermal energy from an external heat source, using a reversible condensation reaction with an inorganic oxoacid compound. It accordingly provides components to be used in said improved process as well as the use thereof in the aforementioned method, including the use in the manufacture of products of the condensation products or in the manufacture of the hydrolysis products.
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公开(公告)号：US5554781A
公开(公告)日：1996-09-10
申请号：US399253
申请日：1995-03-06
申请人： Robert L. Reierson
发明人： Robert L. Reierson
摘要： The invention relates to a process for producing a unique phosphation reagent and to a simple, single-stage process utilizing this reagent to produce alkyl phosphate esters having high monoalkyl phosphate content in combination with low dialkyl phosphate, trialkyl phosphate, phosphoric acid and residual alcohol.
摘要翻译： 本发明涉及一种独特的磷酸化试剂的制备方法，以及利用该试剂制备具有高烷基磷酸酯含量的磷酸烷基酯与磷酸二烷基酯，磷酸三烷基酯，磷酸和残余醇组合的简单的单步方法。
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公开(公告)号：US5550274A
公开(公告)日：1996-08-27
申请号：US400077
申请日：1995-03-07
申请人： Robert L. Reierson
发明人： Robert L. Reierson
摘要： The invention relates to a simple, single-stage process to produce alkyl phosphate esters having high monoalkyl phosphate content in combination with low dialkyl phosphate, trialkyl phosphate, phosphoric acid and other nonionic (usually residual alcohol) components in which a unique phosphation reagent having a preferred effective equivalent polyphosphoric acid concentration of 121-123% is produced and utilized in-situ.
摘要翻译： 本发明涉及一种制备具有高磷酸单烷基酯含量的磷酸低烷基酯与磷酸二烷基酯，磷酸三烷基酯，磷酸和其它非离子（通常为残余醇）组分的简单的单步方法，其中独特的磷酸化试剂具有 优选地生产并利用优选的有效等效多聚磷酸浓度为121-123％。
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公开(公告)号：US4777028A
公开(公告)日：1988-10-11
申请号：US009188
申请日：1987-01-30
申请人： Klaus Schrodter
发明人： Klaus Schrodter
IPC分类号： C01B7/07 , C01B17/90 , C01B25/234 , C01B25/238 , C01B25/24 , C01G45/10 , C22B3/00 , C22B13/08 , C22B30/00 , C01B25/16
CPC分类号： C01B17/901 , C01B25/238 , C01B25/24 , C01B7/0706 , C01G45/10
摘要： Mineral acids are freed from heavy metals, especially copper, arsenic, antimony and lead by precipitating the metals in sulfide form. To this end, the mineral acid is reacted with hydrogen sulfide or an alkali metal sulfide solution under pressure and with thorough agitation, and formed solid matter is subsequently separated from the mineral acid under the pressure selected. The mineral acid may conveniently by admixed initially with a filter aid and then treated with hydrogen sulfide or the alkali metal sulfide solution.
摘要翻译： 矿物酸通过沉淀硫化物形式的金属而从重金属，特别是铜，砷，锑和铅中除去。 为此，无机酸在压力和充分搅拌下与硫化氢或碱金属硫化物溶液反应，随后在所选择的压力下将形成的固体物质与无机酸分离。 无机酸可以方便地通过与助滤剂混合，然后用硫化氢或碱金属硫化物溶液处理。
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公开(公告)号：US4547295A
公开(公告)日：1985-10-15
申请号：US559202
申请日：1983-12-07
CPC分类号： C01B25/24 , B01D33/073 , B01D33/466 , B01D37/02
摘要： Filtration of wet process superphosphoric acid by vacuum filtration is greatly enhanced by the use of a filter aid having a statistically selected distribution of particle sizes.
摘要翻译： 通过使用具有统计学上选择的粒度分布的助滤剂，通过真空过滤来过滤湿法过氧化氢大大增强。
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公开(公告)号：US4399114A
公开(公告)日：1983-08-16
申请号：US402941
申请日：1982-07-29
申请人： Alexander Maurer , Gero Heymer , Markus Erpenbach
发明人： Alexander Maurer , Gero Heymer , Markus Erpenbach
CPC分类号： C01B25/24
摘要： The disclosure relates to a process for the continuous dearsenification of polyphosphoric acid with the aid of hydrogen sulfide in a gas admission zone. To this end, the disclosure provides for the acid to be dearsenified in a gas admission zone subdivided so as to comprise at least two separate liquid matter-receiving zones, each zone being separated from the other by means of a separate gas zone; for the liquid in each of the liquid matter-receiving zones to be maintained at a level 0.1 up to 10 cm high, without admission of gas; for hydrogen sulfide which remained unreacted in the individual liquid matter-receiving zones to be collected in the respective gas zone and for it to be finely redispersed in the liquid matter-receiving zone directly upstream of the respective gas zone by allowing the hydrogen sulfide to flow through a plurality of openings into the acid, the latter being delivered from the respective liquid-matter-receiving zone into the next downstream liquid-matter-receiving zone, and introduced thereinto directly below the liquid matter level therein; for precipitated arsenic sulfide to be separated from the acid coming from the lower end of the gas admission zone, and for the filtrate obtained to be freed from gaseous hydrogen sulfide in excess.
摘要翻译： 本公开涉及在气体入口区借助硫化氢连续脱砷多磷酸的方法。 为此，本公开内容提供了在气体进入区域中进行脱砷的酸，其被细分为包括至少两个分离的液体物质接收区域，每个区域通过单独的气体区域与另一个区域分离; 使每个液体物质接收区域中的液体保持在0.1至10厘米高的水平，而不允许气体; 对于在各个液体物质接收区中保持未反应的硫化氢，其被收集在各个气体区中，并且通过允许硫化氢流动直接在各个气体区的上游被精细地再分散在液体物质接收区中 通过多个开口进入酸，后者从相应的液体接收区输送到下一个下游液体接收区，并直接在其中引入液体物质的下方; 使沉淀的硫化砷与气体入口区的下端的酸分离，得到的过滤得到的无水硫化氢的滤液。
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8.发明授权
公开(公告)号：US3956462A
公开(公告)日：1976-05-11
申请号：US451911
申请日：1974-03-18
申请人： Gero Heymer , Wolfgang Scheibitz , Hasso Spott
发明人： Gero Heymer , Wolfgang Scheibitz , Hasso Spott
摘要： Waste material consisting substantially of contaminated phosphorous acid is utilized. To this end, the phosphorous acid is introduced, with agitation into a liquid phase. Liquid phase and phosphorous acid are maintained in a ratio by volume between 1:1 and 10:1. The liquid phase is placed in a reactor, maintained between 250.degree. and 400.degree.C and selected from a phosphoric acid of the general formula H.sub.n.sub.+2 P.sub.n O.sub.3n.sub.+1, in which n substantially stands for a number between 1 and 5. Resulting hydrogen phosphide is removed. In the event of continuous operation, newly formed liquid phase is removed from the reactor, at the same rate as it is being formed.
摘要翻译： 使用基本上由污染的亚磷酸组成的废料。 为此，在搅拌下将亚磷酸引入液相中。 液相和亚磷酸的体积比保持在1:1至10:1之间。 将液相置于保持在250℃至400℃的反应器中，并选自通式为Hn + 2PnO3n + 1的磷酸，其中n基本上代表1至5之间的数字。产生的磷化氢为 删除。 在连续操作的情况下，新形成的液相以与形成的相同的速率从反应器中除去。
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公开(公告)号：US3671202A
公开(公告)日：1972-06-20
申请号：US3671202D
申请日：1964-02-21
申请人： ALLIED CHEM
CPC分类号： C01B25/24
摘要： THIS INVENTION RELATES TO THE CONCENTRATION OF WETPROCESS PHOSPHORIC ACID TO PRODUCE SUPERPHOSPHORIC ACID BY CONTACTING WET-PROCESS PHOSPHORIC ACID, PREFERABLY CONTAINING FROM ABOUT 50-55% P2O5, WITH A STREAM OF HOT COMBUSTION GASES IN SUCH A VOLUME AND AT SUCH A VELOCITY TO SUBSTANTIALLY COMPLETELY ENTRAIN ALL OF THE WETPROCESS PHOSPHORIC ACID, CONTINUOUSLY FEEDING THE STREAM OF HEATING GAS CONTAINING THE ENTRAINED ACID INTO A ZONE WHERE COALESCENCE OF THE ACID PARTICLES IS EFFECTED AND
CONTINUOUSLY REMOVING THE RESULTING SUPERPHOSPHORIC ACID.-
公开(公告)号：US3442611A
公开(公告)日：1969-05-06
申请号：US3442611D
申请日：1968-03-08
CPC分类号： C01B25/20 , C01B25/24 , Y10S261/54
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