IN168682B - - Google Patents

Info

Publication number
IN168682B
IN168682B IN807/MAS/86A IN807MA1986A IN168682B IN 168682 B IN168682 B IN 168682B IN 807MA1986 A IN807MA1986 A IN 807MA1986A IN 168682 B IN168682 B IN 168682B
Authority
IN
India
Application number
IN807/MAS/86A
Other languages
English (en)
Inventor
Henry Michalski Dennis
Srinivasan Viswanathan
Original Assignee
Int Minerals & Chem Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Int Minerals & Chem Corp filed Critical Int Minerals & Chem Corp
Publication of IN168682B publication Critical patent/IN168682B/en

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
    • 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
    • C01B25/28—Ammonium phosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
IN807/MAS/86A 1985-12-16 1986-10-13 IN168682B (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/809,440 US4639359A (en) 1985-12-16 1985-12-16 Process of removing cationic impurities from wet process phosphoric acid

Publications (1)

Publication Number Publication Date
IN168682B true IN168682B (ja) 1991-05-18

Family

ID=25201339

Family Applications (1)

Application Number Title Priority Date Filing Date
IN807/MAS/86A IN168682B (ja) 1985-12-16 1986-10-13

Country Status (12)

Country Link
US (1) US4639359A (ja)
EP (1) EP0227235A3 (ja)
JP (1) JPS62171906A (ja)
KR (1) KR870005909A (ja)
AU (1) AU580244B2 (ja)
BR (1) BR8605100A (ja)
CA (1) CA1261116A (ja)
IN (1) IN168682B (ja)
MA (1) MA21021A1 (ja)
MY (1) MY100621A (ja)
PH (1) PH23210A (ja)
ZA (1) ZA867770B (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570363B1 (fr) * 1984-09-14 1986-12-26 Centre Nat Rech Scient Procede de separation d'impuretes a base de magnesium et eventuellement d'aluminium et de fluor, d'un acide phosphorique prepare par voie humide
US4929570A (en) * 1986-10-06 1990-05-29 National Semiconductor Corporation Selective epitaxy BiCMOS process
US6049652A (en) * 1988-12-23 2000-04-11 Gemstar Development Corporation Apparatus and method using compressed codes for recorder preprogramming
CA2005070C (en) * 1988-12-23 1999-04-27 Henry C. Yuen Apparatus and method for using encoded video recorder/player timer preprogramming information
EP1172331B1 (en) * 1998-12-28 2006-08-16 Toyo Boseki Kabushiki Kaisha Method for purification of phosphoric acid
KR100447941B1 (ko) * 2001-11-21 2004-09-08 한국화학연구원 고순도 인산 결정 제조방법과 그 장치
EP1931817A2 (en) * 2005-08-19 2008-06-18 Houghton Metal Finishing Company Methods and compositions for acid treatment of a metal surface
US8202449B2 (en) * 2006-10-31 2012-06-19 Icl Performance Products, Lp Corrosion-inhibited ammonium polyphosphate fire retardant compositions
US10196289B2 (en) * 2010-05-18 2019-02-05 Ostara Nutrient Recovery Technologies Inc. Treatment of phosphate-containing wastewater
CN101891169B (zh) * 2010-07-01 2012-07-25 湖北富邦科技股份有限公司 一种利用铝离子改善磷酸二铵粒子结晶感的方法
WO2014121398A1 (en) 2013-02-06 2014-08-14 X'aan Innovations Inc. Ammonium polyphosphate based fire-retardant compositions
CN103523764B (zh) * 2013-06-27 2016-08-17 云南云天化国际化工股份有限公司 一种降低湿法磷酸中镁铝杂质的方法
CN104803366A (zh) * 2015-04-15 2015-07-29 瓮福（集团）有限责任公司 一种含氟硅渣循环使用提高磷酸中氟资源回收量的方法
CN105480959B (zh) * 2016-01-22 2017-10-17 金正大生态工程集团股份有限公司 用氟化盐净化法生产磷酸二氢钾的方法
CN105600763B (zh) * 2016-01-22 2017-10-27 金正大诺泰尔化学有限公司 一种氟化盐净化法生产工业磷酸一铵的方法
CN106145074B (zh) * 2016-08-04 2018-01-02 中化化肥有限公司成都研发中心 在生产中降低湿法磷酸中Al2O3含量的湿法磷酸工艺
CN107827113B (zh) * 2017-11-29 2020-05-15 湖北祥云(集团)化工股份有限公司 一种工业磷酸一铵中和渣浆中氟的回收方法
CN110482507A (zh) * 2019-08-08 2019-11-22 宜都兴发化工有限公司 一种降低萃余酸中金属离子的方法
CN112250052B (zh) * 2020-09-07 2023-05-09 昆明隆祥化工有限公司 湿法磷酸生产工业级磷酸一铵及磷酸铵镁缓释肥的方法
CN115124013B (zh) * 2022-08-05 2023-08-29 衢州华友钴新材料有限公司 一种电池级正磷酸铁的制备方法
CN116443830A (zh) * 2023-03-17 2023-07-18 云南天安化工有限公司 一种用于以湿法磷酸生产磷酸二氢铵氨化料浆体系的除杂剂研制及使用技术

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642439A (en) * 1969-10-15 1972-02-15 Allied Chem Method of separating magnesium from wet-process phosphoric acid
US4136199A (en) * 1977-06-27 1979-01-23 Occidental Chemical Company Metallic ion removal from phosphoric acid
US4299804A (en) * 1978-03-09 1981-11-10 Agrico Chemical Company Removal of magnesium and aluminum impurities from wet process phosphoric acid
JPS5591162A (en) * 1978-12-27 1980-07-10 Fujitsu Ltd Semiconductor device
US4485078A (en) * 1982-03-16 1984-11-27 Agrico Chemical Company Process for producing wet process phosphoric acid from phosphate rocks containing fluochlorapatite and related minerals
US4435372A (en) * 1982-09-13 1984-03-06 Tennessee Valley Authority Production of purified strong wet-process phosphoric acid
US4493820A (en) * 1982-10-01 1985-01-15 Gardinier, Inc. Process for partial removing of impurities from a wet process phosphoric acid
US4554144A (en) * 1983-03-18 1985-11-19 Occidental Research Corporation Removal of magnesium and/or aluminum values from impure aqueous phosphoric acid
US4500502A (en) * 1983-06-28 1985-02-19 Mississippi Chemical Corporation Process for removing impurities from wet process of phosphoric acid
FR2570363B1 (fr) * 1984-09-14 1986-12-26 Centre Nat Rech Scient Procede de separation d'impuretes a base de magnesium et eventuellement d'aluminium et de fluor, d'un acide phosphorique prepare par voie humide

Also Published As

Publication number Publication date
ZA867770B (en) 1988-04-27
EP0227235A3 (en) 1988-03-30
MY100621A (en) 1990-12-29
BR8605100A (pt) 1987-07-21
US4639359A (en) 1987-01-27
JPS62171906A (ja) 1987-07-28
PH23210A (en) 1989-06-06
CA1261116A (en) 1989-09-26
EP0227235A2 (en) 1987-07-01
AU580244B2 (en) 1989-01-05
KR870005909A (ko) 1987-07-07
JPH0456773B2 (ja) 1992-09-09
MA21021A1 (fr) 1988-04-01
AU6397886A (en) 1987-06-18

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