RU2014140320A - METHOD FOR CLEANING PHOSPHORIC ACID BY NANOFILTRATION - Google Patents

METHOD FOR CLEANING PHOSPHORIC ACID BY NANOFILTRATION Download PDF

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RU2014140320A
RU2014140320A RU2014140320A RU2014140320A RU2014140320A RU 2014140320 A RU2014140320 A RU 2014140320A RU 2014140320 A RU2014140320 A RU 2014140320A RU 2014140320 A RU2014140320 A RU 2014140320A RU 2014140320 A RU2014140320 A RU 2014140320A
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phosphoric acid
membrane
solution
organic
soluble polymer
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RU2014140320A
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Russian (ru)
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RU2625872C2 (en
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Кхаоула КХАЛЕСС
Абделаали КОССИР
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ОуСиПи СА
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/10—Specific pressure applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/46—Impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/16—Membrane materials having positively charged functional groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/30—Chemical resistance

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1. Способ очистки раствора фосфорной кислоты, включающий стадию фильтрации фосфорной кислоты через мембрану нанофильтрации, в котором мембрана нанофильтрации представляет собой органическую мембрану нанофильтрации, на которой адсорбирован, по меньшей мере, один водорастворимый полимер, включающий, по меньшей мере, одну функциональную аминогруппу, одну функциональную ароматическую аминогруппу, одну функциональную группу кислоты и/или одну спиртовую функциональную группу.2. Способ по п. 1, в котором молекулярная масса указанного, по меньшей мере, одного адсорбированного водорастворимого полимера составляет 100-40000 г/моль.3. Способ по п. 1 или 2, в котором концентрация фосфорной кислоты в очищаемом растворе составляет 10-45% РО, предпочтительно 25-30% РО.4. Способ по п. 1 или 2, который включает стадию обработки раствора фосфорной кислоты для удаления из него твердых и органических веществ, выполняемую до первой стадии фильтрации.5. Способ по п. 4, в котором после указанной обработки содержание твердых веществ в растворе фосфорной кислоты составляет менее 1%, предпочтительно менее или равно 0,7% и содержание органического углерода менее 1000 ч/млн, предпочтительно менее или равно 300 ч/млн.6. Способ по п. 1 или 2, в котором порог отсечки указанной мембраны составляет 150-1000 г/моль.7. Способ по п. 1 или 2, в котором органическая мембрана нанофильтрации представляет собой мембрану из полиэфирсульфона или полиамида/полисульфона, положительно заряженную в кислой среде.8. Способ по п. 1 или 2, в котором водорастворимый полимер выбран из одного из следующих полимеров: полиэтиленимина (PEI), полиакриловой кислоты (РАА), поливинилового спирта (PVA) и поли(винил-4-пиридина) (PV4P).9. Способ по п. 1 или 2, в котором подлежащий оч1. A method of purifying a phosphoric acid solution, comprising the step of filtering phosphoric acid through a nanofiltration membrane, in which the nanofiltration membrane is an organic nanofiltration membrane on which at least one water-soluble polymer comprising at least one amino functional group is adsorbed a functional aromatic amino group, one acid functional group and / or one alcohol functional group. 2. A method according to claim 1, wherein the molecular weight of said at least one adsorbed water-soluble polymer is 100-40000 g / mol. A method according to claim 1 or 2, wherein the concentration of phosphoric acid in the solution to be purified is 10-45% PO, preferably 25-30% PO. 4. A method according to claim 1 or 2, which includes the step of processing a solution of phosphoric acid to remove solid and organic substances from it, carried out before the first stage of filtration. The method of claim 4, wherein after said treatment, the solids content of the phosphoric acid solution is less than 1%, preferably less than or equal to 0.7%, and the organic carbon content is less than 1000 ppm, preferably less than or equal to 300 ppm. 6. A method according to claim 1 or 2, wherein the cutoff threshold of said membrane is 150-1000 g / mol. A method according to claim 1 or 2, wherein the nanofiltration organic membrane is a polyethersulfone or polyamide / polysulfone membrane positively charged in an acidic medium. A method according to claim 1 or 2, wherein the water-soluble polymer is selected from one of the following polymers: polyethyleneimine (PEI), polyacrylic acid (PAA), polyvinyl alcohol (PVA) and poly (vinyl-4-pyridine) (PV4P). The method of claim 1 or 2, wherein

Claims (9)

1. Способ очистки раствора фосфорной кислоты, включающий стадию фильтрации фосфорной кислоты через мембрану нанофильтрации, в котором мембрана нанофильтрации представляет собой органическую мембрану нанофильтрации, на которой адсорбирован, по меньшей мере, один водорастворимый полимер, включающий, по меньшей мере, одну функциональную аминогруппу, одну функциональную ароматическую аминогруппу, одну функциональную группу кислоты и/или одну спиртовую функциональную группу.1. A method of purifying a phosphoric acid solution, comprising the step of filtering phosphoric acid through a nanofiltration membrane, in which the nanofiltration membrane is an organic nanofiltration membrane on which at least one water-soluble polymer comprising at least one amino functional group is adsorbed a functional aromatic amino group, one functional group of an acid and / or one alcohol functional group. 2. Способ по п. 1, в котором молекулярная масса указанного, по меньшей мере, одного адсорбированного водорастворимого полимера составляет 100-40000 г/моль.2. The method according to p. 1, in which the molecular weight of the specified at least one adsorbed water-soluble polymer is 100-40000 g / mol. 3. Способ по п. 1 или 2, в котором концентрация фосфорной кислоты в очищаемом растворе составляет 10-45% Р2О5, предпочтительно 25-30% Р2О5.3. The method according to p. 1 or 2, in which the concentration of phosphoric acid in the solution to be purified is 10-45% P 2 O 5 , preferably 25-30% P 2 O 5 . 4. Способ по п. 1 или 2, который включает стадию обработки раствора фосфорной кислоты для удаления из него твердых и органических веществ, выполняемую до первой стадии фильтрации.4. The method according to p. 1 or 2, which includes the stage of processing a solution of phosphoric acid to remove solid and organic substances from it, performed before the first stage of filtration. 5. Способ по п. 4, в котором после указанной обработки содержание твердых веществ в растворе фосфорной кислоты составляет менее 1%, предпочтительно менее или равно 0,7% и содержание органического углерода менее 1000 ч/млн, предпочтительно менее или равно 300 ч/млн.5. The method according to p. 4, in which after the specified treatment, the solids content in the phosphoric acid solution is less than 1%, preferably less than or equal to 0.7% and the organic carbon content is less than 1000 ppm, preferably less than or equal to 300 h / million 6. Способ по п. 1 или 2, в котором порог отсечки указанной мембраны составляет 150-1000 г/моль.6. The method according to p. 1 or 2, in which the cutoff threshold of the specified membrane is 150-1000 g / mol. 7. Способ по п. 1 или 2, в котором органическая мембрана нанофильтрации представляет собой мембрану из полиэфирсульфона или полиамида/полисульфона, положительно заряженную в кислой среде.7. The method according to p. 1 or 2, in which the organic nanofiltration membrane is a membrane of polyethersulfone or polyamide / polysulfone, positively charged in an acidic environment. 8. Способ по п. 1 или 2, в котором водорастворимый полимер выбран из одного из следующих полимеров: полиэтиленимина (PEI), полиакриловой кислоты (РАА), поливинилового спирта (PVA) и поли(винил-4-пиридина) (PV4P).8. The method according to claim 1 or 2, in which the water-soluble polymer is selected from one of the following polymers: polyethyleneimine (PEI), polyacrylic acid (PAA), polyvinyl alcohol (PVA) and poly (vinyl-4-pyridine) (PV4P). 9. Способ по п. 1 или 2, в котором подлежащий очистке раствор фосфорной кислоты получен действием сильной кислоты на природный фосфат. 9. The method according to claim 1 or 2, in which the phosphoric acid solution to be purified is obtained by the action of a strong acid on natural phosphate.
RU2014140320A 2012-03-06 2013-03-06 Method of cleaning phosphoric acid by nanofiltration RU2625872C2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR1252031 2012-03-06
FR1252031A FR2987830B1 (en) 2012-03-06 2012-03-06 PROCESS FOR THE PURIFICATION OF PHOSPHORIC ACID BY NANOFILTRATION
US201261611141P 2012-03-15 2012-03-15
US61/611,141 2012-03-15
PCT/MA2013/000003 WO2013133684A1 (en) 2012-03-06 2013-03-06 Process for purifying phosphoric acid by nanofiltration

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RU2014140320A true RU2014140320A (en) 2016-04-27
RU2625872C2 RU2625872C2 (en) 2017-07-19

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CA (1) CA2870066C (en)
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WO (1) WO2013133684A1 (en)
ZA (1) ZA201407233B (en)

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GB2522244B (en) * 2014-01-20 2017-03-01 Bateman Advanced Tech Ltd Method of purifying phosphoric acid
CN104828795B (en) * 2015-05-13 2017-03-01 南京工业大学 A kind of method of ceramic membrane wet method phosphoric acid manufacture process
CN110655052A (en) * 2019-10-11 2020-01-07 四川思达能环保科技有限公司 Method for preparing phosphoric acid by decomposing phosphate ore with hydrochloric acid
CN111591967A (en) * 2020-05-29 2020-08-28 盛隆资源再生（无锡）有限公司 Recovery processing method of phosphoric acid waste acid
EP3925689A1 (en) 2020-06-16 2021-12-22 Prayon Process for purifying a phosphate containing acidic solution comprising impurities and apparatus for applying same
FR3117103A1 (en) 2020-12-09 2022-06-10 Ocp Sa METHOD FOR DETERMINING MIXING PARAMETERS FOR THE PREPARATION OF A PHOSPHORIC ACID SOLUTION COMPRISING A CONTROLLED CONTENT OF ONE OR MORE OF ITS CONSTITUENTS
CN112978694A (en) * 2021-04-29 2021-06-18 上海化工研究院有限公司 Process for purifying industrial wet-process phosphoric acid by adopting nanofiltration membrane
WO2023083958A1 (en) 2021-11-12 2023-05-19 Takhim For Technology And Business Services Process for the production of a purified phosphoric acid solution and/or dicalcium phosphate salts
MA57233B1 (en) 2022-07-25 2024-04-30 Univ Mohammed Vi Polytechnique PROCESS FOR OBTAINING URANIUM SALTS BY NANOFILTRATION OF AN ACID ELUATE
CN115448271B (en) * 2022-09-16 2023-10-31 衢州华友钴新材料有限公司 Purification method and purification system of wet-process phosphoric acid and preparation method of ferric phosphate

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6283885A (en) * 1985-10-08 1987-04-17 Nitto Electric Ind Co Ltd Immobilized enzyme membrane and production thereof
KR950014052A (en) * 1994-04-07 1995-06-15 잭 이. 데온즈 Method and apparatus for recovering carboxylic acid from dilution solution
IL123326A (en) * 1998-02-16 2001-10-31 Bpt Biopure Technologies Ltd Selective membrane and process for its preparation
JP4705746B2 (en) * 2000-05-23 2011-06-22 ジーイー・オズモニクス・インコーポレイテッド Acid stable membranes for nanofiltration
JP4778911B2 (en) * 2003-12-05 2011-09-21 エクソンモービル リサーチ アンド エンジニアリング カンパニー Acid extraction method for hydrocarbon raw materials
US7837880B2 (en) * 2004-02-06 2010-11-23 Exxonmobil Research And Engineering Company Acid tolerant polymeric membrane and process for the recovery of acid using polymeric membranes
WO2007135689A2 (en) * 2006-05-24 2007-11-29 Ben Gurion University Of The Negev R&D Authority Membranes, coatings and films and methods for their preparation

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AU2013228080A1 (en) 2014-10-30
CA2870066C (en) 2020-05-12
ZA201407233B (en) 2016-07-27
RU2625872C2 (en) 2017-07-19
FR2987830B1 (en) 2014-12-12
WO2013133684A1 (en) 2013-09-12
CA2870066A1 (en) 2013-09-12
AU2013228080B2 (en) 2017-09-07
FR2987830A1 (en) 2013-09-13

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