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WO2013091367A1 - Technologie à l'acide chlorhydrique pour la production d'acide phosphorique de qualité alimentaire - Google Patents

Technologie à l'acide chlorhydrique pour la production d'acide phosphorique de qualité alimentaire Download PDF

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Publication number
WO2013091367A1
WO2013091367A1 PCT/CN2012/077645 CN2012077645W WO2013091367A1 WO 2013091367 A1 WO2013091367 A1 WO 2013091367A1 CN 2012077645 W CN2012077645 W CN 2012077645W WO 2013091367 A1 WO2013091367 A1 WO 2013091367A1
Authority
WO
WIPO (PCT)
Prior art keywords
phosphoric acid
extraction
stripping
hydrochloric acid
organic phase
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.)
Ceased
Application number
PCT/CN2012/077645
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English (en)
Chinese (zh)
Inventor
杨站平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KINDLY（BEIJING）TECH TRADING Co Ltd
Original Assignee
KINDLY（BEIJING）TECH TRADING Co Ltd
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 KINDLY（BEIJING）TECH TRADING Co Ltd filed Critical KINDLY（BEIJING）TECH TRADING Co Ltd
Publication of WO2013091367A1 publication Critical patent/WO2013091367A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
    • C01B25/2212—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid with hydrochloric acid or hydrogen chloride in aqueous medium
    • 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
    • C01B25/46—Preparation involving solvent-solvent extraction

Definitions

  • N235 is an alkaline extractant, which is a mixed tribasic amine mainly composed of C8 ⁇ C10. N235 can extract Fe 3+ which is combined with C1 to form an anion in chloride solution. The iron extraction ability is extremely strong, and the compounding process is :
  • Step 9 impurity removal: 6 W t% ⁇ 12 W t% Na 2 S solution is added to dilute phosphoric acid obtained by stripping hydrochloric acid for secondary decontamination, and the Na 2 S solution is added in an amount of 1% of dilute phosphoric acid volume. ⁇ 4%, then adsorbed by activated carbon, and then filtered with a precision filter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention porte sur une technologie à l'acide chlorhydrique pour la production d'acide phosphorique de qualité alimentaire. Sur la base d'un procédé d'acidolyse à l'acide chlorhydrique, des impuretés métaux lourds sont enlevées au moyen d'un procédé d'élimination d'impuretés préliminaire et d'un procédé d'élimination d'impuretés subséquent. Pendant ce temps, du phosphate de tributyle présentant une composition simple et des propriétés stables est utilisé comme agent d'extraction pour effectuer un procédé d'extraction. L'effet d'extraction est souhaitable et en association avec un procédé de réextraction d'acide chlorhydrique dilué, le taux d'utilisation de l'agent d'extraction est élevé. Tout le procédé d'extraction et de réextraction peut être effectué à une température ambiante et il convient particulièrement à la préparation d'acide phosphorique de qualité alimentaire en production industrielle. Une technologie d'extraction liquide-liquide est hautement maitrisable et a des taux d'extraction et d'élimination d'impuretés élevés; la teneur en H3PO4 représente plus de 75 % en poids du produit acide phosphorique final. L'acide phosphorique a une bonne qualité et peut être utilisé dans l'industrie alimentaire sans être purifié. La présente invention est applicable à la fois à du minerai phosphaté pauvre et à du minerai phosphaté riche.
PCT/CN2012/077645 2011-12-23 2012-06-27 Technologie à l'acide chlorhydrique pour la production d'acide phosphorique de qualité alimentaire Ceased WO2013091367A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110436529.4 2011-12-23
CN201110436529.4A CN102515134B (zh) 2011-12-23 2011-12-23 食品级磷酸的盐酸法生产工艺

Publications (1)

Publication Number Publication Date
WO2013091367A1 true WO2013091367A1 (fr) 2013-06-27

Family

ID=46286288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/077645 Ceased WO2013091367A1 (fr) 2011-12-23 2012-06-27 Technologie à l'acide chlorhydrique pour la production d'acide phosphorique de qualité alimentaire

Country Status (3)

Country Link
CN (1) CN102515134B (fr)
JO (1) JO3135B1 (fr)
WO (1) WO2013091367A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102992296A (zh) * 2012-11-09 2013-03-27 凯恩德利(北京)科贸有限公司 一种盐酸法磷酸生产工艺
CN104986746B (zh) * 2015-08-07 2017-09-22 中化重庆涪陵化工有限公司 提高湿法磷酸净化萃取率的方法
CN110116997A (zh) * 2019-06-25 2019-08-13 山东鲁北企业集团总公司 一种湿法磷酸净化除铁的方法
CN114832747A (zh) * 2022-04-06 2022-08-02 瓮福（集团）有限责任公司 一种磷酸净化脱砷装置
CN114804047A (zh) * 2022-04-06 2022-07-29 瓮福（集团）有限责任公司 一种磷酸净化脱砷工艺
CN114772573A (zh) * 2022-05-29 2022-07-22 四川金地亚美科技有限公司 一种三聚磷酸钾钠的生产工艺
CN115924871B (zh) * 2022-12-02 2023-09-15 上海太洋科技有限公司 一种光学级偏磷酸铜的制备方法
CN115893353A (zh) * 2023-01-09 2023-04-04 贵州胜威化工新材料研究院有限公司 一种正磷酸铁材料的合成方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573005A (en) * 1968-10-24 1971-03-30 Israel Mining Ind Inst For Res Process for cleaning phosphoric acid
US4256716A (en) * 1979-03-01 1981-03-17 Occidental Research Corporation Process for treating loaded extractant from purification of phosphoric acid by extraction
CN1789116A (zh) * 2004-12-14 2006-06-21 自贡鸿鹤化工股份有限公司 盐酸法生产磷酸联产石膏的方法
CN102134063A (zh) * 2011-01-12 2011-07-27 姚鼎文 盐酸法一步萃取从中低品位磷矿制造工业磷酸、工业磷铵和食品级磷酸的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774556B (zh) * 2010-01-28 2011-12-07 四川大学 盐酸分解中低品位磷矿制备工业级和食品级磷酸的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573005A (en) * 1968-10-24 1971-03-30 Israel Mining Ind Inst For Res Process for cleaning phosphoric acid
US4256716A (en) * 1979-03-01 1981-03-17 Occidental Research Corporation Process for treating loaded extractant from purification of phosphoric acid by extraction
CN1789116A (zh) * 2004-12-14 2006-06-21 自贡鸿鹤化工股份有限公司 盐酸法生产磷酸联产石膏的方法
CN102134063A (zh) * 2011-01-12 2011-07-27 姚鼎文 盐酸法一步萃取从中低品位磷矿制造工业磷酸、工业磷铵和食品级磷酸的方法

Also Published As

Publication number Publication date
CN102515134B (zh) 2014-04-16
JO3135B1 (ar) 2017-09-20
CN102515134A (zh) 2012-06-27

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