GB1589945A - Process for concentrating dilute phosphoric acid - Google Patents

Process for concentrating dilute phosphoric acid Download PDF

Info

Publication number
GB1589945A
GB1589945A GB51891/77A GB5189177A GB1589945A GB 1589945 A GB1589945 A GB 1589945A GB 51891/77 A GB51891/77 A GB 51891/77A GB 5189177 A GB5189177 A GB 5189177A GB 1589945 A GB1589945 A GB 1589945A
Authority
GB
United Kingdom
Prior art keywords
acid
stage
concentrating
phosphoric acid
absorption
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.)
Expired
Application number
GB51891/77A
Other languages
English (en)
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB1589945A publication Critical patent/GB1589945A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/08—Compounds containing halogen
    • C01B33/10—Compounds containing silicon, fluorine, and other elements
    • C01B33/103—Fluosilicic acid; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/765—Multi-stage SO3-conversion
    • C01B17/7655—Multi-stage SO3-conversion with intermediate absorption
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Saccharide Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
GB51891/77A 1977-01-03 1977-12-13 Process for concentrating dilute phosphoric acid Expired GB1589945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2700009A DE2700009C3 (de) 1977-01-03 1977-01-03 Verfahren zur Aufkonzentrierung von verdünnter Phosphorsäure

Publications (1)

Publication Number Publication Date
GB1589945A true GB1589945A (en) 1981-05-20

Family

ID=5998041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51891/77A Expired GB1589945A (en) 1977-01-03 1977-12-13 Process for concentrating dilute phosphoric acid

Country Status (15)

Country Link
JP (1) JPS5385797A (sv)
AU (1) AU513920B2 (sv)
BE (1) BE862580A (sv)
BR (1) BR7800006A (sv)
CA (1) CA1085583A (sv)
DE (1) DE2700009C3 (sv)
ES (1) ES465669A1 (sv)
FI (1) FI773907A (sv)
FR (1) FR2376071A1 (sv)
GB (1) GB1589945A (sv)
IT (1) IT1090383B (sv)
NO (1) NO774454L (sv)
PL (1) PL203780A1 (sv)
SE (1) SE7800045L (sv)
ZA (1) ZA777069B (sv)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495161A (en) * 1981-04-10 1985-01-22 C-I-L Inc. Energy recovery method and system for combined sulphuric acid and phosphoric acid manufacturing plant
US4576813A (en) * 1983-07-05 1986-03-18 Monsanto Company Heat recovery from concentrated sulfuric acid
US4670242A (en) * 1984-11-09 1987-06-02 Monsanto Company Heat recovery from concentrated sulfuric acid
CN103523763A (zh) * 2013-10-11 2014-01-22 徐州天正活性炭厂 一种快速浓缩稀磷酸的节能装置和方法
CN104445118A (zh) * 2014-12-01 2015-03-25 四川玖长科技有限公司 用于从窑法磷酸工艺的出窑烟气中制磷酸的工艺
CN109941979A (zh) * 2019-04-30 2019-06-28 舒爱桦 一种高效肥料磷酸制食品级磷酸的工艺

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2824010A1 (de) * 1978-06-01 1979-12-13 Metallgesellschaft Ag Verfahren zur aufkonzentrierung von verduennter phosphorsaeure
DE3232446A1 (de) * 1982-08-12 1984-02-16 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur herstellung von schwefelsaeure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495161A (en) * 1981-04-10 1985-01-22 C-I-L Inc. Energy recovery method and system for combined sulphuric acid and phosphoric acid manufacturing plant
US4576813A (en) * 1983-07-05 1986-03-18 Monsanto Company Heat recovery from concentrated sulfuric acid
US4670242A (en) * 1984-11-09 1987-06-02 Monsanto Company Heat recovery from concentrated sulfuric acid
CN103523763A (zh) * 2013-10-11 2014-01-22 徐州天正活性炭厂 一种快速浓缩稀磷酸的节能装置和方法
CN103523763B (zh) * 2013-10-11 2017-04-05 徐州天正活性炭厂 一种快速浓缩稀磷酸的节能装置和方法
CN104445118A (zh) * 2014-12-01 2015-03-25 四川玖长科技有限公司 用于从窑法磷酸工艺的出窑烟气中制磷酸的工艺
CN109941979A (zh) * 2019-04-30 2019-06-28 舒爱桦 一种高效肥料磷酸制食品级磷酸的工艺

Also Published As

Publication number Publication date
DE2700009A1 (de) 1978-07-06
DE2700009B2 (de) 1979-03-29
CA1085583A (en) 1980-09-16
ES465669A1 (es) 1978-09-16
ZA777069B (en) 1978-09-27
IT1090383B (it) 1985-06-26
BR7800006A (pt) 1978-08-15
NO774454L (no) 1978-07-04
AU513920B2 (en) 1981-01-15
DE2700009C3 (de) 1979-11-15
BE862580A (fr) 1978-06-30
PL203780A1 (pl) 1978-08-14
FR2376071A1 (fr) 1978-07-28
JPS5385797A (en) 1978-07-28
FI773907A (fi) 1978-07-04
SE7800045L (sv) 1978-07-04
AU3150177A (en) 1979-06-21

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed