MA47052A1 - Élimination des dépôts dans la production d'acide phosphorique et installations de manipulation - Google Patents
Élimination des dépôts dans la production d'acide phosphorique et installations de manipulationInfo
- Publication number
- MA47052A1 MA47052A1 MA47052A MA47052A MA47052A1 MA 47052 A1 MA47052 A1 MA 47052A1 MA 47052 A MA47052 A MA 47052A MA 47052 A MA47052 A MA 47052A MA 47052 A1 MA47052 A1 MA 47052A1
- Authority
- MA
- Morocco
- Prior art keywords
- phosphoric acid
- deposits
- methods
- deposit
- compositions
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- 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
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
-
- 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
- C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine
- C01B25/2346—Concentration
-
- 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
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/042—Prevention of deposits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
- C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Fertilizers (AREA)
Abstract
L'invention concerne des compositions et des méthodes d'atténuation de dépôts dans des installations d'acide phosphorique et de phosphate d'ammonium. Les compositions d'atténuation de dépôts de l'invention peuvent être ajoutées à de l'acide phosphorique avant ou pendant la concentration dans le cycle d'évaporation d'une installation d'acide phosphorique. Les compositions retardent la formation de dépôt sur des surfaces en contact avec l'acide phosphorique, et ainsi le temps entre les nettoyages est allongé et la productivité de l'installation augmente. En outre, le dépôt qui se forme est plus mou et plus facilement nettoyé des surfaces, réduisant le temps de non-fonctionnement de l'installation et/ou de l'évaporateur. L'invention concerne également des méthodes d'atténuation de la formation de dépôt dans la production d'acide phosphorique et des installations de manipulation d'acide phosphorique. Dans les méthodes, les dépôts s'accumulent plus lentement et sont plus mous, plus tractables et plus facilement nettoyés des surfaces auxquelles ils adhèrent.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710264732.5A CN108726494B (zh) | 2017-04-20 | 2017-04-20 | 磷酸生产和处理设备中的垢控制 |
PCT/US2018/028320 WO2018195288A1 (fr) | 2017-04-20 | 2018-04-19 | Élimination des dépôts dans la production d'acide phosphorique et installations de manipulation |
Publications (2)
Publication Number | Publication Date |
---|---|
MA47052A1 true MA47052A1 (fr) | 2019-12-31 |
MA47052B1 MA47052B1 (fr) | 2020-10-28 |
Family
ID=62117018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MA47052A MA47052B1 (fr) | 2017-04-20 | 2018-04-19 | Élimination des dépôts dans la production d'acide phosphorique et installations de manipulation |
Country Status (6)
Country | Link |
---|---|
US (2) | US10584049B2 (fr) |
CN (1) | CN108726494B (fr) |
MA (1) | MA47052B1 (fr) |
RU (1) | RU2765778C2 (fr) |
SA (1) | SA519410302B1 (fr) |
WO (1) | WO2018195288A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108726494B (zh) * | 2017-04-20 | 2023-05-02 | 艺康美国股份有限公司 | 磷酸生产和处理设备中的垢控制 |
WO2022020313A1 (fr) * | 2020-07-22 | 2022-01-27 | Heritage Research Group | Procédés et méthodes d'élimination de sels et de solides contenant de l'acide polyphosphorique |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4196172A (en) * | 1976-07-07 | 1980-04-01 | Occidental Petroleum Corporation | Hemihydrate type phosphoric acid process |
DE69217580T2 (de) * | 1991-05-31 | 1997-06-26 | Calgon Corp | Polyether-Polyamino-Methylenphosphonaten zur Kontrolle von Ablagerungen bei hohem pH-Wert |
US5338477A (en) * | 1991-05-31 | 1994-08-16 | Calgon Corporation | Polyether polyamino methylene phosphonates for high pH scale control |
US5454954A (en) * | 1993-09-21 | 1995-10-03 | Calgon Corporation | Scale control in metal mining circuits using polyether polyamino methylene phosphonates |
US5534157A (en) * | 1994-11-10 | 1996-07-09 | Calgon Corporation | Polyether polyamino methylene phosphonates for high pH scale control |
JP4043551B2 (ja) | 1997-05-23 | 2008-02-06 | 栗田工業株式会社 | スケール防止剤及びスケール防止方法 |
CN100431985C (zh) | 2005-08-31 | 2008-11-12 | 刘天暘 | 湿法磷酸生产用阻垢剂 |
CN101172718B (zh) * | 2006-10-31 | 2010-05-12 | 中国石油化工股份有限公司 | 一种阻垢剂及其在水处理中的应用 |
CN101774558B (zh) * | 2009-12-25 | 2011-10-19 | 中国海洋石油总公司 | 提高浓缩磷酸产量的方法 |
CN102241441B (zh) * | 2010-05-14 | 2015-12-02 | 纳尔科公司 | 包含aa-amps共聚物和pma的组合物及其用途 |
US9221700B2 (en) * | 2010-12-22 | 2015-12-29 | Ecolab Usa Inc. | Method for inhibiting the formation and deposition of silica scale in aqueous systems |
US8900539B2 (en) * | 2011-03-22 | 2014-12-02 | Cytec Technology Corp. | Preventing or reducing scale in wet-process phosphoric acid production |
US9567507B2 (en) * | 2012-09-07 | 2017-02-14 | Prestone Products Corporation | Heat transfer fluids and corrosion inhibitor formulations for use thereof |
CN203307051U (zh) * | 2013-07-22 | 2013-11-27 | 湖北宜化松滋肥业有限公司 | 磷酸浓缩系统 |
BR112016019054A8 (pt) * | 2014-03-06 | 2019-12-10 | Solenis Technologies Cayman Lp | método para o controle, a prevenção e/ou a inibição da formação de incrustações e/ou depósitos em um sistema aquoso e composição |
CN204550064U (zh) * | 2015-04-23 | 2015-08-12 | 武汉宜田科技发展有限公司 | 一种磷酸浓缩设备 |
CN108726494B (zh) * | 2017-04-20 | 2023-05-02 | 艺康美国股份有限公司 | 磷酸生产和处理设备中的垢控制 |
-
2017
- 2017-04-20 CN CN201710264732.5A patent/CN108726494B/zh active Active
-
2018
- 2018-04-19 WO PCT/US2018/028320 patent/WO2018195288A1/fr active Application Filing
- 2018-04-19 MA MA47052A patent/MA47052B1/fr unknown
- 2018-04-19 RU RU2019137021A patent/RU2765778C2/ru active
- 2018-04-19 US US15/957,339 patent/US10584049B2/en active Active
-
2019
- 2019-10-15 SA SA519410302A patent/SA519410302B1/ar unknown
-
2020
- 2020-02-14 US US16/791,300 patent/US11027998B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11027998B2 (en) | 2021-06-08 |
MA47052B1 (fr) | 2020-10-28 |
SA519410302B1 (ar) | 2022-12-05 |
RU2019137021A3 (fr) | 2021-08-05 |
RU2019137021A (ru) | 2021-05-20 |
WO2018195288A1 (fr) | 2018-10-25 |
RU2765778C2 (ru) | 2022-02-02 |
US20180305234A1 (en) | 2018-10-25 |
US20200180987A1 (en) | 2020-06-11 |
CN108726494A (zh) | 2018-11-02 |
CN108726494B (zh) | 2023-05-02 |
US10584049B2 (en) | 2020-03-10 |
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