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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
241	Verfahren zur Rückgewinnung der Chemikalien der Kochlauge	EP92114000.0	1992-08-17	EP0538576B2	1997-10-22	Glasner, Alfred, Dipl.-Ing.; Bobik, Michael, Dr.

242	CO-PRODUCTION OF POTASSIUM SULFATE, SODIUM SULFATE AND SODIUM CHLORIDE	EP95943581.0	1995-11-13	EP0796223A1	1997-09-24	EFRAIM, Itzhak; LAMPERT, Shalom; HOLDENGRABER, Curt
A process for producing potassium sulfate, sodium sulfate, and sodium chloride from potash and a sodium sulfate/water source, wherein potash (12), sodium sulfate (14), slurry (34) from the recovery stage and brine (18) from the gaserite decomposition stage (20) are introduced to a first stage (10), wherein the sodium sulfate and potash dissolve, such that glaserite is precipitated. The slurry is concentrated and delivered (22) to the glaserite decomposition stage (20) along with water (24). Potash is introduced directly (8) and/or via stream (22) by introducing excess potash into stage (10). The potassium sulfate solids are separated, washed and dried to give a potassium sulfate product (27). The mother liquor (18) removed from the reactor is returned to the glaserite production stage (10). The brine (26) produced in the production of glaserite (10) is evaporated in an evaporative crystallizer (28). The removal of water (30) produces a supersaturation of sodium chloride, which precipitates out of solution.
243	Zero discharge pulp mill cascading water management	EP96250103.7	1993-12-07	EP0728864A2	1996-08-28	Nykanen, Tuomo S., Kamyr, Inc.; Grenwood, Brian F., Kamyr, Inc.; Gullichsen, Johan; Kiiskila, Erkki; Mattelmaki, Eskor; Phillips, Joseph, R.; Richardson, Jan T.; Ryham, Rolf; Soderman, Jarmo; Wiklund, Karl G.
The invention relates to a method and apparatus for managing liquid streams in a cellulose pulp mill having a digester (210), a bleach plant (212) and at least first, second and third loops (94-97) of liquid streams in the pulp mill, the loops having liquid streams therein of significantly different contamination levels, the contamination level gradually increasing from the first loop to the third loop. The method comprises the steps of: (a) sensing (in 309, 98) the contamination level in at least the first and second loops; (b) when the contamination level in the first loop exceeds a predetermined level, discharging some of the contaminated liquid from the first loop to the second loop, and replacing it with less contaminated liquid; (c) when the contamination level in the second loop exceeds a predetermined level, discharging some of the contaminated liquid from the second loop to the third loop, and replacing it with less contaminated liquid; and (d) purifying (e.g. in 229 230, 231) the most contaminated liquid from the loops to produce the less contaminated liquid for addition to at least step (b).
244	HIGH WATER SOLUBILITY POTASSIUM SULFATE AND METHOD OF PRODUCING SAME	EP93923328.0	1993-10-07	EP0663891A1	1995-07-26	MCLAUGHLIN, J., C.; NASON, Danton, S.; PREST, John, R., Jr.
Improved potassium sulfate salt products in both solid particulate and liquid form are provided which exhibit enhanced salt solubility in water. The products include potassium sulfate, in combination with a surfactant and mixed together in water. The aqueous mixture is heated to a maximum reaction temperature in the range of about 100-210 °F, and will retain enhanced water solubility in either a heated or cooled condition. In preferred forms, potassiums sulfate may be treated with at least 0.1 % by weight of disulfonate surfactant and heated in water to 100-140 °F to give K2SO4 solutions of at least 8 % by weight solubility taken as K2O.
245	VERFAHREN ZUR ENTSORGUNG VON NATRIUM-SCHWEFEL-SPEICHERZELLEN	EP93919069.0	1993-08-16	EP0656154A1	1995-06-07	HAMMER, Hartmut; WINKLER, Dieter
Sodium-sulphur accumulator cells are disposed of and recycled by crushing the cells in the presence of water, by separating the solid residual materials and by preparing an aqueous solution of Na-polysulfide. Variations in the reaction process allow the products thus obtained to be economically processed while minimizing secondary products.
246	Verfahren zur Rückgewinnung der Chemikalien der Kochlauge	EP92114000.0	1992-08-17	EP0538576B1	1995-04-12	Glasner, Alfred, Dipl.-Ing.; Bobik, Michael, Dr.

247	Verfahren zur Elektrolyse einer wässrigen Kaliumchlorid-Lösung	EP94108515.1	1994-06-03	EP0638518A2	1995-02-15	Hönigschmid-Grossich, Rüdiger, Dr.; Schmittinger, Peter, Dr.; Stahl, Ingo, Dr.; Wambach-Sommerhoff, Karl-Rainer, Dr.
Die Erfindung betrifft ein Verfahren zur Elektrolyse einer wäßrigen Kaliumchlorid-Lösung, wobei die Sulfat-Ionen aus der wäßrigen Kaliumchlorid-Lösung durch Fällung als Kaliumsulfat und/oder als Kaliumsulfat-haltiges Salzgemisch und/oder als Kaliumsulfat-haltige Verbindung entfernt werden.
248	Verfahren zur Aufarbeitung von Abfallprodukten aus Abwässern der Farbstoffproduktion	EP91106011.9	1991-04-16	EP0452863A3	1992-05-06	von Plessen, Helmold, Dr.; Reichert, Karl-Michael, Dr.; Metz, Erich
Verfahren zur Aufarbeitung von Abfallprodukten der zweistufigen Herstellung von Perylen-tetracarbonsäureanhydrid, wobei in der 1. Stufe das Perylimid gewonnen wird, welches in der 2. Stufe zum Perylen-tetracarbonsäureanhydrid verseift wird, dadurch gekennzeichnet, daß das kaliumhydroxidhaltige Abwasser der 1. Stufe und die Abfallschwefelsäure der 2. Stufe unter Gewinnung von Kaliumsulfat aufgearbeitet werden.
249	Verfahren zur Aufarbeitung von Abfallprodukten aus Abwässern der Farbstoffproduktion	EP91106011.9	1991-04-16	EP0452863A2	1991-10-23	von Plessen, Helmold, Dr.; Reichert, Karl-Michael, Dr.; Metz, Erich
Verfahren zur Aufarbeitung von Abfallprodukten der zweistufigen Herstellung von Perylen-tetracarbonsäureanhydrid, wobei in der 1. Stufe das Perylimid gewonnen wird, welches in der 2. Stufe zum Perylen-tetracarbonsäureanhydrid verseift wird, dadurch gekennzeichnet, daß das kaliumhydroxidhaltige Abwasser der 1. Stufe und die Abfallschwefelsäure der 2. Stufe unter Gewinnung von Kaliumsulfat aufgearbeitet werden.
250	Recovery of glycine and Glauber's salt from waste crystal liquors	EP90303914.7	1990-04-11	EP0392823A3	1991-05-02	Thunberg, Jon C.
Glycine and sodium sulfate decahydrate are separated from a starting aqueous solution containing glycine, sodium sulfate, and impurities, by forming a slurry which is a solid mixture of glycine and sodium sulfate decahydrate, followed by separation of the mixed crystals.
251	New, permanent flame retardant and anti-smouldering compositions	EP85104290	1985-04-09	EP0159615A3	1987-03-25	Sallay, Stephen I.
When alkali metal and/or alkaline earth metal tetraborates in a water suspension are suitably treated with ammonia and sulfuric acid, sulfurdioxide or phosphoric acid, they undergo a three-step transformation resulting in a mixture of ammoniumpentaborate, the corresponding alkali metal and/or alkaline earth metal salt(s): sulfate, sulfite or hydrophosphate and ammonia (Equation 1 ). Alternatively, tetraborates undergo the same threestep reactions upon their treatment with equimolar amounts of ammoniumsulfate, ammoniumsulfite or diammoniumhydrogenphosphate, while the liberated ammonia can be boiled off with distilling water This application deals with the discovery of highly effective permanent flame retardant compositions which also possess excellent antismoldering, noncorrosive and fungal resistant properties when properly applied on cellulosic fibers, cellulose-lignin fiber insulation materials.
252	Process for decomposing sodium hydroxide containing multiple salts	EP83111930	1983-11-29	EP0114974A3	1984-09-05	Lohrengel, Gregor, Dr.; Steinbeisser, Hartmut, Dr.; Schade, Wolfgang, Dr.
Um sowohl eine konzentrierte, möglichst wenig gelöstes Salz enthaltende Natronlauge als auch ein Festsalz mit möglichst geringem Gehalt an NaOH zu erhalten, werden die beim Eindampfen und Abkühlen der Natronlauge aus der NaCl-Elektrolyse anfallenden Mehrfachsalze zersetzt. Dazu wird im Seitenstrom zum Lauge-Hauptstrom der Eindamp fanlage der entnommene Salzbrei zunächst eingedickt, und ein Teil der Natronlauge mit großem NaOH-Gehalt wird durch Lauge mit geringerem NaOH-Gehalt ersetzt. Die Mehrfachsalze werden in einem ebenfalls im Seitenstrom liegenden Zersetzer mittels Natronlauge mit weniger als 30 % NaOH-Gehalt zersetzt. Bei diesem Verfahren wird weder bereits auskristallisiertes Salz aufgelöst noch die Salzbela stung im Haupt-Laugestrom erhöht. Der Verlust an NaOH wird gegenüber den bisher üblichen Verfahren merklich herabgesetzt
253	PROCESS FOR SIMULTANEOUS PRODUCTION OF POTASSIUM SULPHATE, AMMONIUM SULFATE, MAGNESIUM HYDROXIDE AND/OR MAGNESIUM OXIDE FROM KAINITE MIXED SALT AND AMMONIA	PCT/IN2010000194	2010-03-29	WO2010109492A8	2011-03-24	GHOSH PUSHPITO KUMAR; MODY HARESH MAHIPATLAL; CHUNAWALA JATIN RAMESHCHANDRA; GANDHI MAHESHKUMAR RAMNIKLAL; BAJAJ HARI CHAND; MAITI PRATYUSH; JOSHI HIMANSHU LABHSHANKER; DERAIYA HASINA HAJIBHAI; SARAIYA UPENDRA PADMAKANT
The present invention provides an integrated process for the recovery of sulphate of potash (SOP), ammonium sulphate and surface modified magnesium hydroxide and/or magnesium oxide utilizing kainite mixed salt and ammonia as the only consumable raw materials. The process involves treating kainite mixed salt with water to obtain solid schoenite and a schoenite end liquor. The latter is desulphated using CaCl2 generated in the process itself and thereafter evaporated to obtain carnallite crystals from which KCl is recovered while the liquor rich in MgCl2 serves as a source of MgCL. The gypsum produced during desulphatation is reacted with aqueous ammonia and CO2 to produce ammonium sulphate and calcium carbonate. The calcium carbonate so obtained is then calcined to obtained CaO and CO2. The CaO is then slaked in decarbonated water and reacted with the MgCl2-rich liquor generated above to produce slurry of Mg(OH)2 in aqueous CaCl2. To this surface modifying agent is added under hot condition and, after cooling, the slurry is more easily filterable and yields surface modified Mg(OH)2. The filtrate rich in CaCl2 is then recycled for desulphatation process above. The solid surface modified Mg(OH)2 is then calcined to produced MgO or used as such in appropriate applications. The schoenite and KCl are reacted to produce SOP in solid form while the liquor is recycled in the schoenite production step.
254	COMPOSITIONS WITH LOW SODIUM SALT CONTENT, PREPARATION METHODS THEREFOR AND USE OF SAME	PCT/MX2008000065	2008-05-27	WO2009110780A3	2010-03-18	FLORES ZUNIGA JUAN ANTONIO
Low sodium salt compositions containing a blend of sodium chloride and one or more magnesium, sodium and potassium salts are provided. Also provided are methods for making and using the compositions. Further proviced are food products containing the compositions.
255	PREPARATION PROCESS OF POTASSIUM SULFATE AND ZINC CHLORIDE OUT OF ZINC SULFATE AND POTASSIUM CHLORIDE	PCT/KR2009001175	2009-03-10	WO2009113789A2	2009-09-17	KIM SU TAE
The invention provides a process for the preparation of potassium sulfate and zinc chloride in an economic way with high purity, which involves dissolving zinc sulfate and potassium chloride in water, concentrating, and adding a lower alcohol to the mixture to cause metathesis. To this end, zinc sulfate and potassium chloride are dissolved in water and are concentrated, by heating, to a paste phase. To the paste phase mixture is added a lower alcohol, and consequently a metathesis reaction occurs.
256	BUILDING AND OTHER MATERIALS CONTAINING TREATED BAUXITE TAILINGS AND PROCESS FOR MAKING SAME	PCT/US0212490	2002-04-23	WO02089940A3	2003-02-27	JAQUAYS CHARLES D
A process and product are described whereby a waste stream containing bauxite tailings is treated to neutralize alkaline material present, and the resulting material incorporated, for example, into building or other materials to provide enhanced properties.
257	High-efficiency milk-like friction reducer with instant dissolution for shale gas slick water fracturing	US15543235	2015-02-28	US10040988B2	2018-08-07	Weichu Yu; Jun Wu
The present invention relates to a milk-like friction reducer used in slick water fracturing and belongs to the technical field of oilfield chemicals. This friction reducer is obtained via free radical polymerization in water by using component A, component B and component C; wherein said component A is a mix of nonionic water-soluble monomers having carbon-carbon double bond; wherein said component B is a mix of water-soluble polymeric stabilizers obtained from monovalent cationic monomers; and wherein said component C is a mix of monovalent inorganic salts. The present invention is environmentally-friendly and easy to use. Its subsequent friction reducer is convenient to add on-the-fly and leads to no foaming without adding anti-foamer. Moreover, unlike other regular friction reducers, it is tolerant with various brines and compatible with common oilfield additives. The subject friction reducer can achieve an extent of friction reduction of greater than 70%.
258	HIGH-EFFICIENCY MILK-LIKE FRICTION REDUCER WITH INSTANT DISSOLUTION FOR SHALE GAS SLICK WATER FRACTURING	US15543235	2015-02-28	US20170355898A1	2017-12-14	Weichu YU; Jun WU
The present invention relates to a milk-like friction reducer used in slick water fracturing and belongs to the technical field of oilfield chemicals. This friction reducer is obtained via free radical polymerization in water by using component A, component B and component C; wherein said component A is a mix of nonionic water-soluble monomers having carbon-carbon double bond; wherein said component B is a mix of water-soluble polymeric stabilizers obtained from monovalent cationic monomers; and wherein said component C is a mix of monovalent inorganic salts. The present invention is environmentally-friendly and easy to use. Its subsequent friction reducer is convenient to add on-the-fly and leads to no foaming without adding anti-foamer. Moreover, unlike other regular friction reducers, it is tolerant with various brines and compatible with common oilfield additives. The subject friction reducer can achieve an extent of friction reduction of greater than 70%.
259	DUAL USE ORAL PHARMACEUTICAL COMPOSITION TABLETS OF SULFATE SALTS AND METHODS OF USE THEREOF	US14774018	2014-03-14	US20160030473A1	2016-02-04	Edmund V. Dennett, Jr.; David S. Wells
The present invention is generally directed to an oral pharmaceutical tablet composition comprising a sulfate salt, for example, sodium sulfate, wherein the composition is capable of administration by direct oral ingestion and by disintegration in water prior to oral ingestion. The present invention is further directed to use of such oral pharmaceutical tablet formulations to induce laxation or to treat or prevent constipation.
260	Method and system for reducing industrial emissions	US13809936	2011-07-15	US09221011B2	2015-12-29	Barry Neil Hooper
The invention relates to a method adapted for integration with a carbonate absorption/stripping process for removal of carbon dioxide, the method and system including the steps of: converting a source of alkali from a first industry to a non-carbonate alkali; feeding the non-carbonate alkali as makeup to a carbonate absorption system for stripping carbon dioxide from emissions from a second industry; recovering an output from the system for stripping carbon dioxide, and in the process of conversion of the alkali from the first industry, utilising energy from the second industry.

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