ZA200107624B - Process for production of phosphoric acid by crystallisation of phosphoric acid hemihydrate. - Google Patents

Process for production of phosphoric acid by crystallisation of phosphoric acid hemihydrate.

Info

Publication number
ZA200107624B
ZA200107624B ZA200107624A ZA200107624A ZA200107624B ZA 200107624 B ZA200107624 B ZA 200107624B ZA 200107624 A ZA200107624 A ZA 200107624A ZA 200107624 A ZA200107624 A ZA 200107624A ZA 200107624 B ZA200107624 B ZA 200107624B
Authority
ZA
South Africa
Prior art keywords
phosphoric acid
concentration
crystals
crystallized
crystallization
Prior art date
Application number
ZA200107624A
Other languages
English (en)
Inventor
Jarmo Aaltonen
Sakari Riihimaeki
Paula Ylinen
Anders Weckman
Original Assignee
Kemira Chemicals Oy
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 Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Publication of ZA200107624B publication Critical patent/ZA200107624B/xx

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Fodder In General (AREA)
  • Saccharide Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Glass Compositions (AREA)
  • Catalysts (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
ZA200107624A 1999-03-24 2001-09-17 Process for production of phosphoric acid by crystallisation of phosphoric acid hemihydrate. ZA200107624B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI990657A FI105909B (fi) 1999-03-24 1999-03-24 Menetelmä fosforihapon laadun parantamiseksi

Publications (1)

Publication Number Publication Date
ZA200107624B true ZA200107624B (en) 2002-08-28

Family

ID=8554272

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200107624A ZA200107624B (en) 1999-03-24 2001-09-17 Process for production of phosphoric acid by crystallisation of phosphoric acid hemihydrate.

Country Status (15)

Country Link
US (1) US6814949B1 (fi)
EP (1) EP1171382B1 (fi)
CN (1) CN1208240C (fi)
AT (1) ATE228967T1 (fi)
AU (1) AU3561100A (fi)
CA (1) CA2368699C (fi)
DE (1) DE60000930T2 (fi)
DK (1) DK1171382T3 (fi)
ES (1) ES2188522T3 (fi)
FI (1) FI105909B (fi)
MA (1) MA25446A1 (fi)
PL (1) PL201169B1 (fi)
RU (1) RU2226499C2 (fi)
WO (1) WO2000059827A1 (fi)
ZA (1) ZA200107624B (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100684983B1 (ko) 2005-04-22 2007-02-20 한국화학연구원 세정을 포함한 경막결정화에 의한 인산의 정제방법
JP2008247733A (ja) 2007-03-14 2008-10-16 Niro Process Technology Bv リン酸リッチストリームの精製
EP2471739A1 (en) * 2011-01-04 2012-07-04 Solvay Sa Process for the purification of phosphoric acid
CN102583285B (zh) * 2012-02-28 2013-11-13 瓮福（集团）有限责任公司 肥料级磷酸制备高浓度磷酸的方法
CN102674276B (zh) * 2012-05-18 2014-07-02 甘肃瓮福化工有限责任公司 一种利用磷精矿粉生产矿浆的装置及其方法
CN103274378B (zh) * 2013-06-13 2014-12-17 四川商舟实业有限公司 电式煅烧炉及其在制备工业级磷酸中的应用
CN103496716B (zh) * 2013-10-22 2014-12-10 武汉科技大学 焦化粗硫铵耦合蒸发溶析结晶生产工业优等品硫铵的方法
FR3073218B1 (fr) * 2017-11-09 2022-04-01 Coatex Sas Preparation d'acide phosphorique
CN110395919B (zh) * 2019-08-09 2021-10-22 中国科学院沈阳应用生态研究所 一种含砷石膏资源化处理的方法及处理所得低砷石膏的应用

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404777A (en) * 1965-05-07 1968-10-08 Armour & Co Froth flotation with secondary-alkyl primary amines
US3642439A (en) 1969-10-15 1972-02-15 Allied Chem Method of separating magnesium from wet-process phosphoric acid
US3819810A (en) 1971-01-22 1974-06-25 Fmc Corp Phosphoric acid purification
IL49211A (en) * 1972-10-02 1977-07-31 Albright & Wilson Process for purifying wet process phorphoric acid
US4299804A (en) * 1978-03-09 1981-11-10 Agrico Chemical Company Removal of magnesium and aluminum impurities from wet process phosphoric acid
US4243643A (en) 1978-10-25 1981-01-06 Occidental Chemical Company Metallic ion removal from phosphoric acid
GB2078694B (en) * 1980-05-21 1984-06-13 Albright & Wilson Crystallizing phosphoric acid
US4487750A (en) * 1983-08-01 1984-12-11 Freeport Minerals Company Stabilization of wet process phosphoric acid
US4657559A (en) * 1985-05-08 1987-04-14 Freeport Research And Engineering Company Process for seed crystal preparation for phosphoric acid crystallization
US4655789A (en) * 1985-05-08 1987-04-07 Freeport Research And Engineering Company Phosphoric acid crystallization process
JP3131433B2 (ja) 1989-12-21 2001-01-31 日本化学工業株式会社 高純度リン酸の製造方法
JPH03237008A (ja) 1990-02-09 1991-10-22 Shin Etsu Chem Co Ltd 窒化ケイ素粉末の処理方法
TW421606B (en) 1995-06-21 2001-02-11 Mohamed Takhim Method of purifying substances by extraction from a liquid medium
RU2059570C1 (ru) 1995-07-05 1996-05-10 Николай Николаевич Бушуев Способ очистки от примесей экстракционной фосфорной кислоты

Also Published As

Publication number Publication date
AU3561100A (en) 2000-10-23
DK1171382T3 (da) 2003-03-24
MA25446A1 (fr) 2002-07-01
FI105909B (fi) 2000-10-31
RU2226499C2 (ru) 2004-04-10
ES2188522T3 (es) 2003-07-01
ATE228967T1 (de) 2002-12-15
CN1208240C (zh) 2005-06-29
DE60000930T2 (de) 2003-08-28
EP1171382B1 (en) 2002-12-04
CA2368699C (en) 2008-11-25
EP1171382A1 (en) 2002-01-16
WO2000059827A1 (en) 2000-10-12
CA2368699A1 (en) 2000-10-12
PL350604A1 (en) 2003-01-13
CN1344226A (zh) 2002-04-10
PL201169B1 (pl) 2009-03-31
US6814949B1 (en) 2004-11-09
FI990657A0 (fi) 1999-03-24
DE60000930D1 (de) 2003-01-16

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