GB1523174A – Process for making sodium metabisulphite
– Google Patents
GB1523174A – Process for making sodium metabisulphite
– Google Patents
Process for making sodium metabisulphite
Info
Publication number
GB1523174A
GB1523174A
GB10048/76A
GB1004876A
GB1523174A
GB 1523174 A
GB1523174 A
GB 1523174A
GB 10048/76 A
GB10048/76 A
GB 10048/76A
GB 1004876 A
GB1004876 A
GB 1004876A
GB 1523174 A
GB1523174 A
GB 1523174A
Authority
GB
United Kingdom
Prior art keywords
medium
sodium
metabisulphite
reaction medium
sodium metabisulphite
Prior art date
1975-03-27
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
GB10048/76A
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.)
Allied Corp
Original Assignee
Allied Chemical and Dye Corp
Allied Chemical Corp
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.)
1975-03-27
Filing date
1976-03-12
Publication date
1978-08-31
1976-03-12
Application filed by Allied Chemical and Dye Corp, Allied Chemical Corp
filed
Critical
Allied Chemical and Dye Corp
1978-08-31
Publication of GB1523174A
publication
Critical
patent/GB1523174A/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
C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
C01D5/14—Preparation of sulfites
Abstract
1523174 Sodium metabisulphite ALLIED CHEMICAL CORP 12 March 1976 [27 March 1975] 10048/76 Heading C1A A process for making sodium metabisulphite comprises (a) establishing a first aqueous reaction medium at 110-140‹ F. containing a suspension of sodium metabisulphite crystals in acidic aqueous solution such that a 10 ml. sample of the clear solution requires 1-6 ml. of H 2 SO 4 to neutralize methyl orange and a second aqueous reaction medium at 125-180‹ F. containing an alkaline suspension of sodium carbonate and sodium sulphite such that 10 ml. sample requires at least 90 ml. of N/L H 2 SO 4 to reach the end-point of methyl orange: (b) continuously introducing a sulphurdioxide-containing gas into the first reaction medium to precipitate sodium metabisulphite crystals therefrom, and introducing any unabsorbed gas into the second reaction medium to form sodium sulphite from the sodium carbonate; (c) continuously introducing sodium carbonate into the second medium to maintain the alkalinity; (d) continuously transferring a suspension from the second to the first aqueous medium to maintain the acidity and overflowing a clear solution of sodium metabisulphite from the first to the second medium to maintain a constant liquid-level in the first medium; and (e) withdrawing a solution of sodium metabisulphite containing suspended crystals from the first medium; separating the metabisulphite crystals from the solution and returning the mother liquor to said first aqueous reaction medium.
GB10048/76A
1975-03-27
1976-03-12
Process for making sodium metabisulphite
Expired
GB1523174A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US05/562,626
US3995015A
(en)
1975-03-27
1975-03-27
Process for making sodium metabisulfite
Publications (1)
Publication Number
Publication Date
GB1523174A
true
GB1523174A
(en)
1978-08-31
Family
ID=24247069
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB10048/76A
Expired
GB1523174A
(en)
1975-03-27
1976-03-12
Process for making sodium metabisulphite
Country Status (7)
Country
Link
US
(1)
US3995015A
(en)
JP
(1)
JPS51122695A
(en)
CA
(1)
CA1065121A
(en)
DE
(1)
DE2611190A1
(en)
FR
(1)
FR2305395A1
(en)
GB
(1)
GB1523174A
(en)
IT
(1)
IT1057770B
(en)
Families Citing this family (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4440909A
(en)
*
1980-12-22
1984-04-03
Ppg Industries, Inc.
Blends of bis(allyl carbonate) monomers with polymers and polymer blends produced therefrom
FR2534571A1
(en)
*
1982-10-19
1984-04-20
Magyar Tudomanyos Akademia
Process and equipment for the production of sodium and potassium sulphites.
US4844880A
(en)
*
1985-12-27
1989-07-04
Hmc Patents Holding Co., Inc.
Process for the manufacture of sodium metabisulfite
US5266296A
(en)
*
1991-01-22
1993-11-30
General Chemical Corporation
Cocurrent flow process for the manufacture of sodium sulfite and bisulfite solutions
US5976485A
(en)
*
1996-10-07
1999-11-02
Solvay Minerals, Inc.
Sodium metabisulfite process
US5753200A
(en)
*
1996-10-07
1998-05-19
Solvay Minerals, Inc.
Sodium metabisulfite process
US6887452B1
(en)
*
2000-10-31
2005-05-03
United States Filter Corporation
System and method for precipitating salts
AR059455A1
(en)
*
2007-02-15
2008-04-09
Angelini Holmer Victorio
PROCESS OF CONVERSION OF SULFUR DIOXIDE IN SALTS OF COMMERCIAL INTEREST
CN102515209A
(en)
*
2011-12-08
2012-06-27
烟台泰和新材料股份有限公司
Method for preparing industrial-grade sodium pyrosulfite from tail gas generated in production of acyl chloride
CN109970081A
(en)
*
2019-03-22
2019-07-05
扬州康龙环保工程有限公司
A method of sodium pyrosulfite is prepared using coking sulphur cream
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1638492A
(en)
*
1923-08-16
1927-08-09
Laury Napoleon Arthur
Method for the production of anhydrous sodium bisulphite
FR605115A
(en)
*
1925-10-26
1926-05-20
Process for the manufacture of alkali metabisulphites or bisulphites with recovery of pure carbonic acid
US2245697A
(en)
*
1939-04-24
1941-06-17
Gen Chemical Corp
Manufacture of alkali metal sulphites
DE1186450B
(en)
*
1963-04-05
1965-02-04
Basf Ag
Process for the production of pure sodium bisulfite and sulfite
DE1186451B
(en)
*
1963-08-14
1965-02-04
Basf Ag
Process for the production of solid potassium disulfite
DE2221298A1
(en)
*
1972-04-29
1973-11-15
Hoechst Ag
PROCESS FOR THE PRODUCTION OF SODIUM PYROSULPHITE
1975
1975-03-27
US
US05/562,626
patent/US3995015A/en
not_active
Expired – Lifetime
1976
1976-03-08
CA
CA247,274A
patent/CA1065121A/en
not_active
Expired
1976-03-12
GB
GB10048/76A
patent/GB1523174A/en
not_active
Expired
1976-03-17
DE
DE19762611190
patent/DE2611190A1/en
not_active
Ceased
1976-03-22
IT
IT67664/76A
patent/IT1057770B/en
active
1976-03-26
JP
JP51032678A
patent/JPS51122695A/en
active
Pending
1976-03-26
FR
FR7608858A
patent/FR2305395A1/en
active
Granted
Also Published As
Publication number
Publication date
IT1057770B
(en)
1982-03-30
US3995015A
(en)
1976-11-30
CA1065121A
(en)
1979-10-30
DE2611190A1
(en)
1976-10-14
JPS51122695A
(en)
1976-10-26
FR2305395A1
(en)
1976-10-22
FR2305395B1
(en)
1981-11-20
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Legal Events
Date
Code
Title
Description
1978-12-29
PS
Patent sealed [section 19, patents act 1949]
1991-11-06
PCNP
Patent ceased through non-payment of renewal fee
