IT1090568B - Procedimento ed impianto per depurare acido fosforico di processo ad umido - Google Patents

Procedimento ed impianto per depurare acido fosforico di processo ad umido

Info

Publication number: IT1090568B
Authority: IT; Italy
Prior art keywords: plant; phosphoric acid; purifying wet; wet process; purifying
Prior art date: 1976-12-17

Application number

IT52200/77A

Other languages

English (en)

Original Assignee

Hoechst 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.)

1976-12-17

Filing date

1977-12-14

Publication date

1985-06-26

1977-12-14 Application filed by Hoechst Ag filed Critical Hoechst Ag

1985-06-26 Application granted granted Critical

1985-06-26 Publication of IT1090568B publication Critical patent/IT1090568B/it

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)
Extraction Or Liquid Replacement (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

IT52200/77A 1976-12-17 1977-12-14 Procedimento ed impianto per depurare acido fosforico di processo ad umido IT1090568B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2657190A DE2657190C2 (de)	1976-12-17	1976-12-17	Verfahren zur Reinigung von Naßverfahrensphosphorsäure

Publications (1)

Publication Number	Publication Date
IT1090568B true IT1090568B (it)	1985-06-26

Family

ID=5995770

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT52200/77A IT1090568B (it)	1976-12-17	1977-12-14	Procedimento ed impianto per depurare acido fosforico di processo ad umido

Country Status (23)

Country	Link
US (1)	US4200620A (it)
JP (1)	JPS5383993A (it)
AT (1)	AT354978B (it)
BE (1)	BE861920A (it)
BR (1)	BR7708375A (it)
CA (1)	CA1084238A (it)
CH (1)	CH631418A5 (it)
DD (1)	DD136258A5 (it)
DE (1)	DE2657190C2 (it)
DK (1)	DK149229C (it)
ES (1)	ES463603A1 (it)
FI (1)	FI65610C (it)
FR (1)	FR2374263A1 (it)
GB (1)	GB1554379A (it)
IL (1)	IL53618A0 (it)
IT (1)	IT1090568B (it)
MX (1)	MX146999A (it)
NL (1)	NL184945C (it)
PH (1)	PH14335A (it)
SE (1)	SE429752B (it)
SU (1)	SU888812A3 (it)
TR (1)	TR19331A (it)
ZA (1)	ZA777470B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4197280A (en) *	1978-10-02	1980-04-08	Stauffer Chemical Company	Wet process phosphoric acid purification
DE2909572A1 (de) *	1979-03-12	1980-09-25	Hoechst Ag	Verfahren zur ueberfuehrung von extraktionsrueckstaenden aus der phosphorsaeurereinigung in feste deponieprodukte
DE2926943A1 (de) *	1979-07-04	1981-01-29	Hoechst Ag	Verfahren zur reinigung von nassverfahrensphosphorsaeure
US4751066A (en) *	1986-05-08	1988-06-14	Fmc Corporation	Process for preparing alkali metal phosphate
GB9124353D0 (en) *	1991-11-15	1992-01-08	Albright & Wilson	Immobilisation of metal contaminants from a liquid to a solid metal
IL211043A0 (en) *	2010-02-06	2011-04-28	Aharon Eyal	A method for the separation of a non-volatile strong acid from a salt thereof and compositions produced thereby
EP2948230A4 (en) *	2013-01-28	2016-03-16	Solex Water Ltd	METHODS AND SYSTEMS FOR RECOVERING WATER
CN114031057B (zh) *	2021-12-17	2022-06-21	四川大学	湿法磷酸生产工业磷酸及联产聚磷酸铵或固体磷酸的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE884358C (de) *	1951-09-20	1953-07-27	Gerardo Collardin	Verfahren zur Reinigung von technischer Phosphorsaeure
BE757550A (fr) *	1969-10-16	1971-03-16	Giulini Gmbh Geb	Procede de preparation de phosphates purs a partir d'acides phosphoriques impurs
SE366972B (it) *	1970-06-12	1974-05-13	Azote & Prod Chim
US3956465A (en) *	1970-06-12	1976-05-11	Azote Et Produits Chimiques S.A.	Solvent purification of wet process phosphoric acid
FR2128968A6 (en) *	1971-03-10	1972-10-27	Azote & Prod Chim	Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent
FR2093372A5 (en) *	1970-06-12	1972-01-28	Azote & Prod Chim	Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent
DE2029564C3 (de) *	1970-06-16	1978-06-22	Giulini Chemie Gmbh, 6700 Ludwigshafen	Verfahren zur Herstellung von reinen Alkaliphosphaten aus Rohphosphorsäure
US3684439A (en) *	1970-09-22	1972-08-15	Monsanto Co	Handling of raffinates from wet phosphoric acid purification
DE2321751C3 (de) *	1973-04-30	1981-11-19	Hoechst Ag, 6000 Frankfurt	Verfahren zur Reinigung von Naßphosphorsäure
DE2605106C2 (de) *	1976-02-10	1984-06-14	Hoechst Ag, 6230 Frankfurt	Verfahren und Vorrichtung zur Herstellung von alkoholischen Phosphorsäurelösungen aus sauren Phosphaten

1976
- 1976-12-17 DE DE2657190A patent/DE2657190C2/de not_active Expired
1977
- 1977-09-13 CH CH1116477A patent/CH631418A5/de not_active IP Right Cessation
- 1977-10-27 ES ES463603A patent/ES463603A1/es not_active Expired
- 1977-11-30 SU SU772547802A patent/SU888812A3/ru active
- 1977-12-08 NL NLAANVRAGE7713608,A patent/NL184945C/xx not_active IP Right Cessation
- 1977-12-09 GB GB51348/77A patent/GB1554379A/en not_active Expired
- 1977-12-12 US US05/859,879 patent/US4200620A/en not_active Expired - Lifetime
- 1977-12-13 TR TR19331A patent/TR19331A/xx unknown
- 1977-12-14 IT IT52200/77A patent/IT1090568B/it active
- 1977-12-14 PH PH20552A patent/PH14335A/en unknown
- 1977-12-15 AT AT898277A patent/AT354978B/de active
- 1977-12-15 IL IL53618A patent/IL53618A0/xx not_active IP Right Cessation
- 1977-12-15 ZA ZA00777470A patent/ZA777470B/xx unknown
- 1977-12-15 FI FI773803A patent/FI65610C/fi not_active IP Right Cessation
- 1977-12-15 DD DD77202670A patent/DD136258A5/xx unknown
- 1977-12-15 SE SE7714259A patent/SE429752B/sv not_active IP Right Cessation
- 1977-12-15 MX MX171732A patent/MX146999A/es unknown
- 1977-12-16 FR FR7738057A patent/FR2374263A1/fr active Granted
- 1977-12-16 DK DK562677A patent/DK149229C/da not_active IP Right Cessation
- 1977-12-16 BE BE183509A patent/BE861920A/xx not_active IP Right Cessation
- 1977-12-16 CA CA293,219A patent/CA1084238A/en not_active Expired
- 1977-12-16 BR BR7708375A patent/BR7708375A/pt unknown
- 1977-12-16 JP JP15231677A patent/JPS5383993A/ja active Granted

Also Published As

Publication number	Publication date
JPS5734203B2 (it)	1982-07-21
FR2374263B1 (it)	1982-10-08
BE861920A (fr)	1978-06-16
PH14335A (en)	1981-05-29
DE2657190A1 (de)	1978-06-22
ZA777470B (en)	1978-11-29
CA1084238A (en)	1980-08-26
MX146999A (es)	1982-09-22
IL53618A0 (en)	1978-03-10
GB1554379A (en)	1979-10-17
DE2657190C2 (de)	1982-11-04
DK149229B (da)	1986-03-24
TR19331A (tr)	1978-12-07
DK562677A (da)	1978-06-18
SE429752B (sv)	1983-09-26
FI773803A (fi)	1978-06-18
ATA898277A (de)	1979-07-15
DD136258A5 (de)	1979-06-27
SU888812A3 (ru)	1981-12-07
FR2374263A1 (fr)	1978-07-13
FI65610C (fi)	1984-06-11
BR7708375A (pt)	1978-08-08
US4200620A (en)	1980-04-29
JPS5383993A (en)	1978-07-24
NL184945C (nl)	1989-12-18
DK149229C (da)	1986-08-18
ES463603A1 (es)	1978-07-16
SE7714259L (sv)	1978-06-18
FI65610B (fi)	1984-02-29
AT354978B (de)	1980-02-11
NL184945B (nl)	1989-07-17
CH631418A5 (de)	1982-08-13
NL7713608A (nl)	1978-06-20

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