BE770916A - Procede de concentration et de defluoration d'acide phosphorique - Google Patents

Procede de concentration et de defluoration d'acide phosphorique

Info

Publication number
BE770916A
BE770916A BE770916A BE770916A BE770916A BE 770916 A BE770916 A BE 770916A BE 770916 A BE770916 A BE 770916A BE 770916 A BE770916 A BE 770916A BE 770916 A BE770916 A BE 770916A
Authority
BE
Belgium
Prior art keywords
defluoration
concentration
phosphoric acid
phosphoric
acid
Prior art date
Application number
BE770916A
Other languages
English (en)
French (fr)
Original Assignee
Uhde Gmbh Friedrich
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 Friedrich filed Critical Uhde Gmbh Friedrich
Publication of BE770916A publication Critical patent/BE770916A/xx

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)
BE770916A 1970-09-12 1971-08-04 Procede de concentration et de defluoration d'acide phosphorique BE770916A (fr)

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
BE770916A true BE770916A (fr) 1971-12-16

Family

ID=5782268

Family Applications (1)

Application Number Title Priority Date Filing Date
BE770916A BE770916A (fr) 1970-09-12 1971-08-04 Procede de concentration et de defluoration d'acide phosphorique

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)

Families Citing this family (4)

* 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
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
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

Also Published As

Publication number Publication date
GB1362388A (en) 1974-08-07
FR2107520A5 (enExample) 1972-05-05
US3781410A (en) 1973-12-25
DE2045180B2 (de) 1975-10-23
NL7108821A (enExample) 1972-03-14
DE2045180A1 (de) 1972-03-16

Similar Documents

Publication Publication Date Title
BE763430A (fr) Procede de preparation d'esters de l'acide carbonique
BE775252A (fr) Procede de preparation d'acide acrylique
RO62741A (fr) Procede pour la preparation des esters d'acide phosphorique
BE760837A (fr) Procede de preparation d'acide 6-aminopenicillanique
BE790026R (fr) Procede de preparation de corps derives de l'acide
BE802541A (fr) Procede de preparation de l'acide phosphorique
BE793710A (fr) Procede de preparation d'acide (&)-trans-chrysanthemique
BE768697A (fr) Derives d'acide quinoleinecarboxylique et leur procede de preparation
BE788316A (fr) Nouveaux derives de l'acide butyrique et procede de preparation
BE757821A (fr) Procede de preparation de l'acide 3-propionyl-salicylique et dederives de cet acide
RO62385A (fr) Procede pour la preparation des esters d'acide pyridazinothionophosphorique et d'acide pyridazinothionophosphonique
BE764364A (fr) Procede de preparation d'acide levulinique
BE770916A (fr) Procede de concentration et de defluoration d'acide phosphorique
CH488708A (fr) Procédé de préparation de (p-fluoro-butyro- phénonyl)-pipérazines et de leurs sels d'addition acide
BE764270A (fr) Acide niril-tris-(methylenephosphonique) et son procede de preparation
BE776753A (fr) Procede de preparation de l'acide acrylique et de l'acide methacryliqu
BE762365A (fr) Procede pour la preparation d'acide amidoalcanes-sulfoniques
BE777388A (fr) Procede de traitement d'esters d'acide pyrimidine- carboxylique
BE765849A (fr) Procede de preparation d'acide sulfurique
BE752513A (fr) Procede de preparation d'esters d'acide benzimidazole-2- carbamique
RO62391A (fr) Procede pour la preparation des amidoesters d'acide thiophosphorique
BE750844A (fr) Procede de purification d'acide lactique
FR1352951A (fr) Procédé de concentration d'acide phosphorique
BE767700A (fr) Procede de preparation d'acide nitrique concentre
BE785086A (fr) Procede de preparation de l'acide 3-0-(beta- carboxypropionyl)-18beta-glycyrrhetique