GB659775A - Production of sulphonated ion exchange resins in stable granular form - Google Patents

Production of sulphonated ion exchange resins in stable granular form

Info

Publication number
GB659775A
GB659775A GB2059/49A GB205949A GB659775A GB 659775 A GB659775 A GB 659775A GB 2059/49 A GB2059/49 A GB 2059/49A GB 205949 A GB205949 A GB 205949A GB 659775 A GB659775 A GB 659775A
Authority
GB
United Kingdom
Prior art keywords
granules
per cent
mesh
water
sulphate
Prior art date
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
GB2059/49A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB2059/49A priority Critical patent/GB659775A/en
Publication of GB659775A publication Critical patent/GB659775A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/28—Chemically modified polycondensates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/16—Organic material
    • B01J39/18—Macromolecular compounds
    • B01J39/19—Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/34—Introducing sulfur atoms or sulfur-containing groups
    • C08F8/36—Sulfonation; Sulfation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages

Abstract

Granular cation exchange resins comprising insoluble sulphonated phenol - formaldehyde resins and sulphonated copolymers of monovinyl aromatic hydrocarbons and polyvinyl aromatic hydrocarbons, which resins contain less than 15 per cent of water and are free from ionizable radicals other than sulphonate radicals, are conditioned so that the granules may be brought into contact with water without extensive shattering by soaking the granules in an aqueous solution containing more than 10 per cent by weight of a dissolved ionizable inorganic compound other than ammonium hydroxide, which compound is incapable of reacting with sulphuric acid to form a water-insoluble sulphate, and maintaining the granules in contact with the solution while diluting it with water until the concentration falls below 10 per cent. Ionizable compounds specified are phosphoric, sulphuric, hydrochloric, hydrobromic acids, sodium chloride, sulphate or carbonate, potassium chloride, bromide or carbonate, lithium chloride, ammonium chloride or sulphate, magnesium chloride or sulphate, sodium or potassium hydroxide. The treatment causes the granules to swell. In examples: (1) a table shows the percentage concentration of NaCl solution by weight in relation to particle mesh size of the granules which prevents spalling of the granules of a resin obtained by condensation of formaldehyde and phenolsulphonic acid; example 2 describes the percentage strength of various acid and salt solutions which do not cause spalling of granules of 10 mesh particle size of a similar resin. In example(3) a table shows the average size of the granules obtained when treating two batches of resin granules of size 14-16 mesh to 60 mesh, (a) with distilled water, (b) with a 26 per cent NaCl solution diluted by subsequent additions of 100 c.c. portions of water added at intervals of 4 minutes; (5) a resin obtained by sulphonating a copolymer of 75 parts styrene, 8 parts divinyl benzene and 18 parts ethyl vinyl benzene with concentrated sulphuric acid and having granules of 20-30 mesh, was first immersed in a 26 per cent solution of NaCl and then in a 3.5 per cent solution. On microscopic examination of the granules no shattering was found to have occurred.ALSO:Granular cation exchange resins comprising insoluble sulphonated phenol-formaldehyde resins and sulphonated copolymers of monvinyl aromatic hydrocarbons and polyvinyl aromatic hydrocarbons which resins contain less than 14 per cent water and are free from ionizable radicals other than sulphonate radicals, are conditioned so that the granules may be brought into contact with water without extensive shattering by soaking the granules in an aqueous solution containing more than 18 per cent by weight of a dissolved ionizable inorganic compound other than ammonium hydroxide, which compound is incapable of reacting with sulphuric acid to form a water insoluble sulphate, and maintaining the granules in contact with the solution while diluting it with water until the concentration falls below 10 per cent. Ionizable compounds specified are phosphoric, sulphuric, hydrochloric, hydrobromic acids, sodium chloride, sulphate or carbonate, potassium chloride bromide or carbonate, lithium chloride, ammonium chloride or sulphate, magnesium chloride or sulphate sodium or potassium hydroxide. The treatment causes the granules to swell. In example 1 a table shows the percentage concentration of NaC1 solution by weight in relation to particle mesh size of the granules which prevents spalling of the granules of a resin obtained by condensation of formaldehyde and phenolsulphonic acid. Example 2 describes the percentage strength of various acid and salt solutions which do not cause spalling of granules of 10 mesh particle size of a similar resin. In example 3 a table shows the average size of the granules obtained when treating two batches of a resin granules of size 14-16 mesh to 60 mesh (a) with distilled water (b) with a 26 per cent NaC1 solution diluted by subseuent additions of 100 cc. portions of water added at intervals of 4 mins. (5) A resin obtained by sulphonating a copolymer of 75 pts. styrene, 8 pts divinyl benzene and 18 pts. ethyl vinyl benzene with concentrated sulphuric acid and having granules of 20-30 mesh was first immersed in a 26 per cent solution of NaC1 and then in a 3.5 per cent solution. On microscopic examination of the granules no shattering was found to have occurred.
GB2059/49A 1949-01-25 1949-01-25 Production of sulphonated ion exchange resins in stable granular form Expired GB659775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2059/49A GB659775A (en) 1949-01-25 1949-01-25 Production of sulphonated ion exchange resins in stable granular form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2059/49A GB659775A (en) 1949-01-25 1949-01-25 Production of sulphonated ion exchange resins in stable granular form

Publications (1)

Publication Number Publication Date
GB659775A true GB659775A (en) 1951-10-24

Family

ID=9732873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2059/49A Expired GB659775A (en) 1949-01-25 1949-01-25 Production of sulphonated ion exchange resins in stable granular form

Country Status (1)

Country Link
GB (1) GB659775A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654743A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Delta-piperidinobutyl diphenylacetate salt of penicillin
US2654752A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Beta-4-morpholinoethyl-benzoate salt of penicillin
US2654751A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Substituted 2-methylipiperidinopropyl benzoate salts of penicillin
US2654749A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Salts of penicillin with dimethylamino, diphenyl-substituted esters
US2654742A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Gamma-morpholinopropyl cinnamate salt of penicillin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654743A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Delta-piperidinobutyl diphenylacetate salt of penicillin
US2654752A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Beta-4-morpholinoethyl-benzoate salt of penicillin
US2654751A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Substituted 2-methylipiperidinopropyl benzoate salts of penicillin
US2654749A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Salts of penicillin with dimethylamino, diphenyl-substituted esters
US2654742A (en) * 1952-02-13 1953-10-06 Lilly Co Eli Gamma-morpholinopropyl cinnamate salt of penicillin

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