GB1292530A – Process for the manufacture of sodium sulphate
– Google Patents
GB1292530A – Process for the manufacture of sodium sulphate
– Google Patents
Process for the manufacture of sodium sulphate
Info
Publication number
GB1292530A
GB1292530A
GB58105/70A
GB5810570A
GB1292530A
GB 1292530 A
GB1292530 A
GB 1292530A
GB 58105/70 A
GB58105/70 A
GB 58105/70A
GB 5810570 A
GB5810570 A
GB 5810570A
GB 1292530 A
GB1292530 A
GB 1292530A
Authority
GB
United Kingdom
Prior art keywords
sodium sulphate
sulphate
sodium
manufacture
vessel
Prior art date
1969-12-23
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
GB58105/70A
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.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
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.)
1969-12-23
Filing date
1970-12-07
Publication date
1972-10-11
1970-12-07
Application filed by Societa Italiana Resine SpA SIR
filed
Critical
Societa Italiana Resine SpA SIR
1972-10-11
Publication of GB1292530A
publication
Critical
patent/GB1292530A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
C01D7/00—Carbonates of sodium, potassium or alkali metals in general
C01D7/07—Preparation from the hydroxides
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S423/00—Chemistry of inorganic compounds
Y10S423/01—Waste acid containing iron
Y10S423/02—Sulfuric acid
Abstract
1292530 Sodium sulphate SOC ITALIANA RESINE SpA 7 Dec 1970 [23 Dec 1969] 58105/70 Heading C1A Sodium sulphate is prepared from ferrous sulphate by feeding the latter together with sodium hydroxide solution and a stream of molecular oxygen or a gas containing it to an agitated vessel, whereby ferric hydroxide is precipitated; separating the precipitate by filtration in a second vessel; adding additional sodium hydroxide to the residual solution so as to cause precipitation of part of the sodium sulphate; recovering this precipitated sodium sulphate, e.g. by means of a centrifuge, and recycling back the residual solution comprising sodium hydroxide and sodium sulphate to the initial reaction vessel. The ferrous sulphate is preferably that obtained as a waste product in the manufacture of titanium dioxide from ilmenite and sulphuric acid.
GB58105/70A
1969-12-23
1970-12-07
Process for the manufacture of sodium sulphate
Expired
GB1292530A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT2620369
1969-12-23
Publications (1)
Publication Number
Publication Date
GB1292530A
true
GB1292530A
(en)
1972-10-11
Family
ID=11218922
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB58105/70A
Expired
GB1292530A
(en)
1969-12-23
1970-12-07
Process for the manufacture of sodium sulphate
Country Status (7)
Country
Link
US
(1)
US3706531A
(en)
CH
(1)
CH533572A
(en)
DE
(1)
DE2063191A1
(en)
FR
(1)
FR2074056A5
(en)
GB
(1)
GB1292530A
(en)
NL
(1)
NL7018037A
(en)
YU
(1)
YU33763B
(en)
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3987156A
(en)
*
1969-11-13
1976-10-19
Agency Of Industrial Science & Technology
Method for manufacture of micaceous α-iron oxide
US4173624A
(en)
*
1976-03-25
1979-11-06
Bayer Aktiengesellschaft
Recovery of sodium sulphate in production of iron oxide black pigments
HU172752B
(en)
*
1976-10-29
1978-12-28
Magyar Aluminium
Process for the selective recovery of the sodium content of red mud in alum earth factories
DE2808674A1
(en)
*
1978-03-01
1979-09-06
Bayer Ag
PROCESS FOR THE PRODUCTION OF IRON OXIDE PIGMENTS AND SODIUM SULFATE
FR3054542B1
(en)
*
2016-07-27
2018-09-07
Ocp Sa
PROCESS FOR PRODUCING SODIUM SULFATE FROM PHOSPHOGYPSIS
1970
1970-11-30
CH
CH1767070A
patent/CH533572A/en
not_active
IP Right Cessation
1970-12-07
US
US95744A
patent/US3706531A/en
not_active
Expired – Lifetime
1970-12-07
GB
GB58105/70A
patent/GB1292530A/en
not_active
Expired
1970-12-10
NL
NL7018037A
patent/NL7018037A/xx
unknown
1970-12-21
YU
YU3118/70A
patent/YU33763B/en
unknown
1970-12-21
FR
FR7045948A
patent/FR2074056A5/fr
not_active
Expired
1970-12-22
DE
DE19702063191
patent/DE2063191A1/en
active
Pending
Also Published As
Publication number
Publication date
FR2074056A5
(en)
1971-10-01
NL7018037A
(en)
1971-06-25
YU33763B
(en)
1978-05-15
YU311870A
(en)
1977-10-31
DE2063191A1
(en)
1971-07-01
CH533572A
(en)
1973-02-15
US3706531A
(en)
1972-12-19
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Legal Events
Date
Code
Title
Description
1973-02-21
PS
Patent sealed [section 19, patents act 1949]
1975-04-23
435
Patent endorsed ‘licences of right’ on the date specified (sect. 35/1949)
1984-08-15
PCNP
Patent ceased through non-payment of renewal fee
