GB1362388A - Process for the concentration and defluorination of phosphoric acid - Google Patents

Process for the concentration and defluorination of phosphoric acid

Info

Publication number
GB1362388A
GB1362388A GB4138371A GB4138371A GB1362388A GB 1362388 A GB1362388 A GB 1362388A GB 4138371 A GB4138371 A GB 4138371A GB 4138371 A GB4138371 A GB 4138371A GB 1362388 A GB1362388 A GB 1362388A
Authority
GB
United Kingdom
Prior art keywords
column
phosphoric acid
acid
water
cooler
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
GB4138371A
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Uhde GmbH
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
Priority claimed from DE19702045180 external-priority patent/DE2045180C3/de
Application filed by Uhde GmbH filed Critical Uhde GmbH
Publication of GB1362388A publication Critical patent/GB1362388A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/343—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas
    • B01D3/346—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas the gas being used for removing vapours, e.g. transport gas
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB4138371A 1970-09-12 1971-09-06 Process for the concentration and defluorination of phosphoric acid Expired GB1362388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702045180 DE2045180C3 (de) 1970-09-12 Verfahren zur Konzentrierung schwacher Phosphorsäure

Publications (1)

Publication Number Publication Date
GB1362388A true GB1362388A (en) 1974-08-07

Family

ID=5782268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4138371A Expired GB1362388A (en) 1970-09-12 1971-09-06 Process for the concentration and defluorination of phosphoric acid

Country Status (5)

Country Link
US (1) US3781410A (enExample)
BE (1) BE770916A (enExample)
FR (1) FR2107520A5 (enExample)
GB (1) GB1362388A (enExample)
NL (1) NL7108821A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA015200B1 (ru) * 2009-04-20 2011-06-30 Открытое Акционерное Общество "Научно-Исследовательский Институт По Удобрениям И Инсектофунгицидам Им. Профессора Я.В. Самойлова" Способ концентрирования и обесфторивания фосфорной кислоты

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233278A (en) * 1978-03-24 1980-11-11 Davy Powergas Inc. Process for purifying crude phosphoric acid
CN115944940A (zh) * 2022-12-15 2023-04-11 昆明川金诺化工股份有限公司 一种湿法浓磷酸生产饲料级磷酸钙盐用高效脱氟塔及脱氟系统
CN116621135A (zh) * 2023-06-20 2023-08-22 瓮福（集团）有限责任公司 一种浓磷酸再浓缩方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA015200B1 (ru) * 2009-04-20 2011-06-30 Открытое Акционерное Общество "Научно-Исследовательский Институт По Удобрениям И Инсектофунгицидам Им. Профессора Я.В. Самойлова" Способ концентрирования и обесфторивания фосфорной кислоты

Also Published As

Publication number Publication date
FR2107520A5 (enExample) 1972-05-05
BE770916A (fr) 1971-12-16
US3781410A (en) 1973-12-25
DE2045180B2 (de) 1975-10-23
NL7108821A (enExample) 1972-03-14
DE2045180A1 (de) 1972-03-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee