FR2395950A1 - Purification de l'acide phosphorique - Google Patents
Purification de l'acide phosphoriqueInfo
- Publication number
- FR2395950A1 FR2395950A1 FR7819228A FR7819228A FR2395950A1 FR 2395950 A1 FR2395950 A1 FR 2395950A1 FR 7819228 A FR7819228 A FR 7819228A FR 7819228 A FR7819228 A FR 7819228A FR 2395950 A1 FR2395950 A1 FR 2395950A1
- Authority
- FR
- France
- Prior art keywords
- phosphoric acid
- purification
- acid
- precipitant
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C01B25/237—Selective elimination of impurities
- C01B25/238—Cationic impurities, e.g. arsenic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
- A23K20/26—Compounds containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Removal Of Specific Substances (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Procédé de purification de l'acide pbosphorique. On élimine des impuretés constituées par des ions métalliques en ajoutant à l'acide un précipitant comprenant des ions calcium et fluorure pour provoquer la formation d'un précipité renfermant, par exemple, du magnésium. Comme précipité préféré, il y a lieu de citer un précipitant renfermant du fluorure de calcium, par exemple la boue obtenue en traitant les eaux résiduaires d'une installation industrielle de préparation de l'acide phosphorique par un composé renfermant du calcium. On maintient de préférence la teneur en sulfate soluble de l'acide phosphorique à au moins 2 % en poids. Applications : notamment à la préparation d'aliments pour animaux et d'engrais.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/810,484 US4136199A (en) | 1977-06-27 | 1977-06-27 | Metallic ion removal from phosphoric acid |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2395950A1 true FR2395950A1 (fr) | 1979-01-26 |
FR2395950B1 FR2395950B1 (fr) | 1984-12-14 |
Family
ID=25203959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7819228A Granted FR2395950A1 (fr) | 1977-06-27 | 1978-06-27 | Purification de l'acide phosphorique |
Country Status (9)
Country | Link |
---|---|
US (1) | US4136199A (fr) |
JP (1) | JPS5417398A (fr) |
CA (1) | CA1112020A (fr) |
DE (1) | DE2827762A1 (fr) |
FR (1) | FR2395950A1 (fr) |
MX (1) | MX147945A (fr) |
NL (1) | NL184677C (fr) |
RO (1) | RO79394A (fr) |
ZA (1) | ZA783603B (fr) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4299804A (en) * | 1978-03-09 | 1981-11-10 | Agrico Chemical Company | Removal of magnesium and aluminum impurities from wet process phosphoric acid |
US4363786A (en) * | 1978-05-26 | 1982-12-14 | Occidental Chemical Corp. | Apparatus for reacting a particulate solid and a liquid |
US4243643A (en) * | 1978-10-25 | 1981-01-06 | Occidental Chemical Company | Metallic ion removal from phosphoric acid |
US4264563A (en) * | 1979-04-12 | 1981-04-28 | Occidental Research Corp. | Preparation of calcium fluoride from fluosilicic acid solutions |
US4303524A (en) * | 1980-05-28 | 1981-12-01 | Richards Thomas E | Rotary vacuum precoat filter |
US4313919A (en) * | 1980-07-15 | 1982-02-02 | Occidental Chemical Company | Process for removing fine solids from phosphoric acid by vacuum filtration |
US4521392A (en) * | 1980-12-05 | 1985-06-04 | Occidental Chemical Agricultural Products, Inc. | Process for blending phosphoric acids of differing impurity content |
US4376756A (en) * | 1980-12-05 | 1983-03-15 | Occidental Chemical Company | Process for blending phosphoric acids of differing impurity content |
US4445926A (en) * | 1980-12-05 | 1984-05-01 | Occidental Chemical Co. | Process for blending phosphoric acids of differing impurity content |
US4443421A (en) * | 1982-03-16 | 1984-04-17 | Occidental Chemical Corporation | Process for removing particulate impurities from aqueous phosphoric acid |
US4505884A (en) * | 1982-05-17 | 1985-03-19 | Occidental Research Corporation | Process for producing HF from impure phosphoric acids |
US4554144A (en) * | 1983-03-18 | 1985-11-19 | Occidental Research Corporation | Removal of magnesium and/or aluminum values from impure aqueous phosphoric acid |
US4557748A (en) * | 1984-08-24 | 1985-12-10 | Farmland Industries, Inc. | Method of lowering the magnesium impurity level of wet-process phosphoric acid during production of liquid fertilizer |
US4640828A (en) * | 1985-10-22 | 1987-02-03 | International Minerals & Chemical Corp. | Separation of dissolved substances from wet process phosphoric acid |
US4639359A (en) * | 1985-12-16 | 1987-01-27 | International Minerals & Chemical Corp. | Process of removing cationic impurities from wet process phosphoric acid |
JPS62179200U (fr) * | 1986-04-28 | 1987-11-13 | ||
US4710366A (en) * | 1986-10-23 | 1987-12-01 | Freeport Minerals Company | Method for producing stabilized wet process phosphoric acid with low content of magnesium and aluminum |
US5236679A (en) * | 1992-05-06 | 1993-08-17 | Freeport-Mcmoran Resource Partners | Removal of aluminum contamination during production of phosphoric acid |
JP3653422B2 (ja) * | 1999-08-20 | 2005-05-25 | シャープ株式会社 | 排水処理方法および排水処理装置 |
US8202449B2 (en) * | 2006-10-31 | 2012-06-19 | Icl Performance Products, Lp | Corrosion-inhibited ammonium polyphosphate fire retardant compositions |
US7736526B2 (en) * | 2008-10-03 | 2010-06-15 | Thompson Industrial Services, Llc | Method of filtering phosphate utilizing a rotary table filter or horizontal table filter |
US8754004B2 (en) | 2011-04-15 | 2014-06-17 | The Board Of Regents For Oklahoma State University | Removing phosphorus from surface and drainage waters through use of industrial by-products |
WO2014121398A1 (fr) | 2013-02-06 | 2014-08-14 | X'aan Innovations Inc. | Compositions ignifugeantes à base de polyphosphate d'ammonium |
CN106185855B (zh) * | 2016-06-30 | 2017-12-15 | 云南磷化集团有限公司 | 一种饲料级湿法磷酸深度净化方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1555332A (fr) * | 1968-03-05 | 1969-01-24 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB467843A (en) | 1936-01-06 | 1937-06-24 | Kunstdunger Patent Verwertungs | Method of separating fluorine and aluminium from solutions obtained by treatment of raw phosphate with acids |
NL277211A (fr) * | 1961-04-20 | |||
US3206282A (en) * | 1962-02-20 | 1965-09-14 | Allied Chem | Removal of soluble after-precipitate from concentrated phosphoric acid |
US3442609A (en) * | 1965-02-09 | 1969-05-06 | John N Carothers | Process of purifying phosporic acid |
US3379501A (en) * | 1965-02-23 | 1968-04-23 | Fmc Corp | Phosphoric acid purification |
US3494736A (en) * | 1968-08-26 | 1970-02-10 | John N Carothers | Process for removing silicon,aluminum and fluorine from wet process phosphoric acid |
JPS502870Y2 (fr) * | 1971-04-12 | 1975-01-25 | ||
JPS5199853A (fr) * | 1975-02-28 | 1976-09-03 | Hitachi Ltd |
-
1977
- 1977-06-27 US US05/810,484 patent/US4136199A/en not_active Expired - Lifetime
-
1978
- 1978-06-23 ZA ZA783603A patent/ZA783603B/xx unknown
- 1978-06-24 DE DE19782827762 patent/DE2827762A1/de active Granted
- 1978-06-26 CA CA306,165A patent/CA1112020A/fr not_active Expired
- 1978-06-26 MX MX173932A patent/MX147945A/es unknown
- 1978-06-27 RO RO7894478A patent/RO79394A/fr unknown
- 1978-06-27 NL NLAANVRAGE7806916,A patent/NL184677C/xx not_active IP Right Cessation
- 1978-06-27 JP JP7795478A patent/JPS5417398A/ja active Granted
- 1978-06-27 FR FR7819228A patent/FR2395950A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1555332A (fr) * | 1968-03-05 | 1969-01-24 |
Also Published As
Publication number | Publication date |
---|---|
DE2827762C2 (fr) | 1988-09-29 |
CA1112020A (fr) | 1981-11-10 |
NL7806916A (nl) | 1978-12-29 |
US4136199A (en) | 1979-01-23 |
FR2395950B1 (fr) | 1984-12-14 |
NL184677B (nl) | 1989-05-01 |
ZA783603B (en) | 1980-02-27 |
JPH0255365B2 (fr) | 1990-11-27 |
MX147945A (es) | 1983-02-09 |
RO79394A (fr) | 1983-02-01 |
DE2827762A1 (de) | 1979-01-18 |
NL184677C (nl) | 1989-10-02 |
JPS5417398A (en) | 1979-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2395950A1 (fr) | Purification de l'acide phosphorique | |
FR2409962A1 (fr) | Procede pour separer des composes chimiques d'une eau salee | |
FR2377974A1 (fr) | Procede de purification d'eaux fluorees, notamment d'eaux residuaires fluorees | |
ZA857324B (en) | Carboxylic/sulfonic/polyalkylene oxide polymer for use as scale,corrosion,and iron oxide deposit control | |
GB1420504A (en) | Process for purifying effluents | |
BE903320A (fr) | Procede de traitement d'eaux residuaires | |
EP0080981A1 (fr) | Procédé pour la production d'une solution aqueuse à haute concentration en phosphates, la récupération de composés de fer comme agents de précipitation et la séparation de métaux lourds d'eau résiduaire ou d'eau | |
FR2430391A1 (fr) | Procede pour separer l'iode d'un melange liquide contenant de l'iode, de l'acide iodhydrique et de l'eau | |
FR2357479A1 (fr) | Procede pour la production d'acide sulfurique a partir d'acides residuaires et de sulfate de fer | |
US4693873A (en) | HCN and iron cyanide complex removal | |
FI822360L (fi) | Basiskt aluminiumsulfat, dess framstaellning och anvaendning | |
EP0228104A2 (fr) | Procédé pour l'élimination de complexe de cyanure de fer | |
ES8102056A1 (es) | Procedimiento de purificacion de una fase organica ensolubleen agua que contiene acido fosforico y acido sulfurico. | |
FR2566383B1 (fr) | Procede de traitement de sulfate ferreux heptahydrate, pour supprimer sa tendance a s'agglomerer et le rendre apte a s'ecouler librement | |
FR2440412A1 (fr) | Procede de revetement par conversion et solution utilisee | |
GB2004469A (en) | Sulphuric acid concentration | |
FR2630726B1 (fr) | Procede de traitement des eaux usees par electrolyse a anode soluble | |
FR2448510A1 (fr) | Procede de traitement chimique d'eaux usees contenant des matieres organiques | |
SU710921A1 (ru) | Способ очистки фосфорсодержащих растворов | |
JPS5765380A (en) | Removal of phosphorus from waste water | |
GB1217464A (en) | Continuous treatment of carry-over on ferrous metal workpieces | |
DE2214827B2 (de) | Verfahren zur Herstellung von Alkaliferrocyaniden | |
SU1288196A1 (ru) | Состав дл химической мелиорации солонцовых почв | |
SU1168544A1 (ru) | Способ получени микроудобрени из морской воды | |
SU660942A1 (ru) | Способ очистки сточных вод от ртути |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
TP | Transmission of property | ||
ST | Notification of lapse |