GB1246915A – A method of dehydrating sodium perborate tetrahydrate
– Google Patents
GB1246915A – A method of dehydrating sodium perborate tetrahydrate
– Google Patents
A method of dehydrating sodium perborate tetrahydrate
Info
Publication number
GB1246915A
GB1246915A
GB4690069A
GB4690069A
GB1246915A
GB 1246915 A
GB1246915 A
GB 1246915A
GB 4690069 A
GB4690069 A
GB 4690069A
GB 4690069 A
GB4690069 A
GB 4690069A
GB 1246915 A
GB1246915 A
GB 1246915A
Authority
GB
United Kingdom
Prior art keywords
zone
air
temperature
drier
sodium perborate
Prior art date
1968-10-05
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
GB4690069A
Inventor
Helmut Honig
Wilhelm Moser
Rudolf Siegel
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.)
Kali Chemie AG
Original Assignee
Kali Chemie 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.)
1968-10-05
Filing date
1969-09-23
Publication date
1971-09-22
1969-09-23
Application filed by Kali Chemie AG
filed
Critical
Kali Chemie AG
1971-09-22
Publication of GB1246915A
publication
Critical
patent/GB1246915A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
C01B15/12—Peroxyhydrates; Peroxyacids or salts thereof containing boron
C01B15/126—Dehydration of solid hydrated peroxyborates to less hydrated or anhydrous products
Abstract
1,246,915. Dehydrating sodium perborate tetrahydrate. KALI-CHEMIE A.G. 23 Sept., 1969 [5 Oct., 1968], No. 46900/69. Heading C1A. Sodium perborate tetrahydrate is dehydrated in a vibratory drier in several zones in which it is contacted with gases at successively higher temperatures, the temperature in a first zone being at least 80‹ C. and not more than 160‹ C. in a final zone and before leaving the drier, it is cooled with air between 0‹ and 25‹ C. In order to produce the monohydrate, the temperature of the gases introduced rises from 85‹ C. in the first zone to 145‹ C. in the final heating zone, however, if it is only required to remove 0À3 to 0À7 moles water per mol. tetrahydrate, the temperature of the gases rises from 80‹ C. in the first zone to 95‹ C. in the final heating zone. In the examples given, there are four separate heating zones and the cooling zone in the drier; air at the various temperatures is obtained by mixing air at ambient temperature and steam-heated air in various proportions, and moist air and entrained dust is extracted in exhaust pipes. The dust may be recovered in a cyclone.
GB4690069A
1968-10-05
1969-09-23
A method of dehydrating sodium perborate tetrahydrate
Expired
GB1246915A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19681801470
DE1801470B1
(en)
1968-10-05
1968-10-05
Process for dewatering sodium perborate tetrahydrate
Publications (1)
Publication Number
Publication Date
GB1246915A
true
GB1246915A
(en)
1971-09-22
Family
ID=5709764
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4690069A
Expired
GB1246915A
(en)
1968-10-05
1969-09-23
A method of dehydrating sodium perborate tetrahydrate
Country Status (10)
Country
Link
AT
(1)
AT290462B
(en)
BE
(1)
BE739722A
(en)
BR
(1)
BR6912461D0
(en)
DE
(1)
DE1801470B1
(en)
ES
(1)
ES371346A1
(en)
FR
(1)
FR2019994A1
(en)
GB
(1)
GB1246915A
(en)
NL
(1)
NL6914983A
(en)
NO
(1)
NO120186B
(en)
SE
(1)
SE344580B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2131477A
(en)
*
1982-12-13
1984-06-20
Schmidt Gmbh & Co Kg Metallwar
A fixing device for attaching a closure member to clock or watch case or the like
US5104631A
(en)
*
1988-01-26
1992-04-14
Interox Chimica S.P.A.
Process for producing sodium perborate monohydrate, partially crystallized sodium perborate monohydrate, and washing powders for textiles
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2444780A1
(en)
*
1974-09-19
1976-04-08
Peroxid Chemie Gmbh
PROCESS FOR THE MANUFACTURING OF ABRASION RESISTANT SODIUM PERBORA MONOHYDRATE
FR2417470A1
(en)
*
1978-02-16
1979-09-14
Air Liquide
Anhydrous sodium perborate prepn. – by dehydration of hydrated sodium perborate in presence of hot, decarbonated, dry air
1968
1968-10-05
DE
DE19681801470
patent/DE1801470B1/en
active
Pending
1969
1969-09-09
ES
ES371346A
patent/ES371346A1/en
not_active
Expired
1969-09-16
BR
BR21246169A
patent/BR6912461D0/en
unknown
1969-09-23
GB
GB4690069A
patent/GB1246915A/en
not_active
Expired
1969-10-02
FR
FR6933727A
patent/FR2019994A1/fr
not_active
Withdrawn
1969-10-02
BE
BE739722D
patent/BE739722A/xx
unknown
1969-10-03
NO
NO3941/69A
patent/NO120186B/no
unknown
1969-10-03
SE
SE1366269A
patent/SE344580B/xx
unknown
1969-10-03
NL
NL6914983A
patent/NL6914983A/xx
unknown
1969-10-03
AT
AT935669A
patent/AT290462B/en
not_active
IP Right Cessation
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2131477A
(en)
*
1982-12-13
1984-06-20
Schmidt Gmbh & Co Kg Metallwar
A fixing device for attaching a closure member to clock or watch case or the like
US5104631A
(en)
*
1988-01-26
1992-04-14
Interox Chimica S.P.A.
Process for producing sodium perborate monohydrate, partially crystallized sodium perborate monohydrate, and washing powders for textiles
Also Published As
Publication number
Publication date
BE739722A
(en)
1970-04-02
BR6912461D0
(en)
1973-01-09
SE344580B
(en)
1972-04-24
NL6914983A
(en)
1970-04-07
NO120186B
(en)
1970-09-14
ES371346A1
(en)
1971-10-16
DE1801470B1
(en)
1970-01-15
FR2019994A1
(en)
1970-07-10
AT290462B
(en)
1971-06-11
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