AU600806B2 - An improved process for demineralizing sugar solutions - Google Patents

An improved process for demineralizing sugar solutions Download PDF

Info

Publication number: AU600806B2
Authority: AU; Australia
Prior art keywords: resin; percent; sugar; water; ion exchange
Prior art date: 1987-03-31
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.): Ceased

Application number

AU13514/88A

Other languages

English (en)

Other versions

AU1351488A (en

Inventor

Upen J. Bharwada

Robert L. Labrie

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.)

1987-03-31

Filing date

1988-03-23

Publication date

1990-08-23

1988-03-23 Application filed by Dow Chemical Co filed Critical Dow Chemical Co

1988-09-29 Publication of AU1351488A publication Critical patent/AU1351488A/en

1990-08-23 Application granted granted Critical

1990-08-23 Publication of AU600806B2 publication Critical patent/AU600806B2/en

2008-03-23 Anticipated expiration legal-status Critical

Status Ceased legal-status Critical Current

Links

235000000346 sugar Nutrition 0.000 title claims description 55
238000000034 method Methods 0.000 title claims description 28
230000002328 demineralizing effect Effects 0.000 title claims description 17
239000011347 resin Substances 0.000 claims description 89
229920005989 resin Polymers 0.000 claims description 89
239000011324 bead Substances 0.000 claims description 48
239000003456 ion exchange resin Substances 0.000 claims description 23
229920003303 ion-exchange polymer Polymers 0.000 claims description 23
238000009826 distribution Methods 0.000 claims description 20
NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 17
235000019534 high fructose corn syrup Nutrition 0.000 claims description 15
239000003957 anion exchange resin Substances 0.000 claims description 8
239000003729 cation exchange resin Substances 0.000 claims description 5
239000000126 substance Substances 0.000 claims description 5
MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 4
230000002378 acidificating effect Effects 0.000 claims description 3
229920001577 copolymer Polymers 0.000 claims description 3
PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 64
239000000243 solution Substances 0.000 description 40
229920001467 poly(styrenesulfonates) Polymers 0.000 description 14
239000007787 solid Substances 0.000 description 9
239000002585 base Substances 0.000 description 8
239000012535 impurity Substances 0.000 description 8
239000002253 acid Substances 0.000 description 7
150000001450 anions Chemical class 0.000 description 6
238000011001 backwashing Methods 0.000 description 6
238000005115 demineralization Methods 0.000 description 6
238000010790 dilution Methods 0.000 description 6
239000012895 dilution Substances 0.000 description 6
229920002125 Sokalan® Polymers 0.000 description 5
230000000052 comparative effect Effects 0.000 description 5
238000001704 evaporation Methods 0.000 description 5
238000005342 ion exchange Methods 0.000 description 5
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
150000001768 cations Chemical class 0.000 description 4
239000012458 free base Chemical group 0.000 description 4
239000011521 glass Substances 0.000 description 4
238000007670 refining Methods 0.000 description 4
-1 Ca w Nasp Ke Chemical class 0.000 description 3
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
150000001412 amines Chemical group 0.000 description 3
238000006243 chemical reaction Methods 0.000 description 3
230000003247 decreasing effect Effects 0.000 description 3
230000008020 evaporation Effects 0.000 description 3
230000001747 exhibiting effect Effects 0.000 description 3
125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
239000006188 syrup Substances 0.000 description 3
235000020357 syrup Nutrition 0.000 description 3
241000196324 Embryophyta Species 0.000 description 2
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
125000003277 amino group Chemical group 0.000 description 2
238000005349 anion exchange Methods 0.000 description 2
238000005341 cation exchange Methods 0.000 description 2
229920001429 chelating resin Polymers 0.000 description 2
239000003795 chemical substances by application Substances 0.000 description 2
239000008121 dextrose Substances 0.000 description 2
239000012897 dilution medium Substances 0.000 description 2
125000000524 functional group Chemical group 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical group [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
230000010354 integration Effects 0.000 description 2
239000007788 liquid Substances 0.000 description 2
239000000203 mixture Substances 0.000 description 2
229920000768 polyamine Polymers 0.000 description 2
229920000642 polymer Polymers 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
239000012492 regenerant Substances 0.000 description 2
239000011780 sodium chloride Substances 0.000 description 2
GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
APCLRHPWFCQIMG-UHFFFAOYSA-N 4-(5,6-dimethoxy-1-benzothiophen-2-yl)-4-oxobutanoic acid Chemical compound C1=C(OC)C(OC)=CC2=C1SC(C(=O)CCC(O)=O)=C2 APCLRHPWFCQIMG-UHFFFAOYSA-N 0.000 description 1
241000208140 Acer Species 0.000 description 1
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
229930091371 Fructose Natural products 0.000 description 1
239000005715 Fructose Substances 0.000 description 1
RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
229920001202 Inulin Polymers 0.000 description 1
229940125791 MSA-2 Drugs 0.000 description 1
240000003183 Manihot esculenta Species 0.000 description 1
235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 1
108010057081 Merozoite Surface Protein 1 Proteins 0.000 description 1
101710162106 Merozoite surface antigen 2 Proteins 0.000 description 1
NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
101150054880 NASP gene Proteins 0.000 description 1
CZMRCDWAGMRECN-UHFFFAOYSA-N Rohrzucker Natural products OCC1OC(CO)(OC2OC(CO)C(O)C(O)C2O)C(O)C1O CZMRCDWAGMRECN-UHFFFAOYSA-N 0.000 description 1
240000006394 Sorghum bicolor Species 0.000 description 1
235000011684 Sorghum saccharatum Nutrition 0.000 description 1
229930006000 Sucrose Natural products 0.000 description 1
CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
240000008042 Zea mays Species 0.000 description 1
235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
235000002017 Zea mays subsp mays Nutrition 0.000 description 1
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
230000002411 adverse Effects 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
125000000217 alkyl group Chemical group 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
229940023913 cation exchange resins Drugs 0.000 description 1
238000009833 condensation Methods 0.000 description 1
230000005494 condensation Effects 0.000 description 1
235000005822 corn Nutrition 0.000 description 1
238000004132 cross linking Methods 0.000 description 1
239000003431 cross linking reagent Substances 0.000 description 1
238000002425 crystallisation Methods 0.000 description 1
230000008025 crystallization Effects 0.000 description 1
229960002887 deanol Drugs 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
239000012972 dimethylethanolamine Substances 0.000 description 1
STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
235000021433 fructose syrup Nutrition 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
JYJIGFIDKWBXDU-MNNPPOADSA-N inulin Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@]1(OC[C@]2(OC[C@]3(OC[C@]4(OC[C@]5(OC[C@]6(OC[C@]7(OC[C@]8(OC[C@]9(OC[C@]%10(OC[C@]%11(OC[C@]%12(OC[C@]%13(OC[C@]%14(OC[C@]%15(OC[C@]%16(OC[C@]%17(OC[C@]%18(OC[C@]%19(OC[C@]%20(OC[C@]%21(OC[C@]%22(OC[C@]%23(OC[C@]%24(OC[C@]%25(OC[C@]%26(OC[C@]%27(OC[C@]%28(OC[C@]%29(OC[C@]%30(OC[C@]%31(OC[C@]%32(OC[C@]%33(OC[C@]%34(OC[C@]%35(OC[C@]%36(O[C@@H]%37[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O%37)O)[C@H]([C@H](O)[C@@H](CO)O%36)O)[C@H]([C@H](O)[C@@H](CO)O%35)O)[C@H]([C@H](O)[C@@H](CO)O%34)O)[C@H]([C@H](O)[C@@H](CO)O%33)O)[C@H]([C@H](O)[C@@H](CO)O%32)O)[C@H]([C@H](O)[C@@H](CO)O%31)O)[C@H]([C@H](O)[C@@H](CO)O%30)O)[C@H]([C@H](O)[C@@H](CO)O%29)O)[C@H]([C@H](O)[C@@H](CO)O%28)O)[C@H]([C@H](O)[C@@H](CO)O%27)O)[C@H]([C@H](O)[C@@H](CO)O%26)O)[C@H]([C@H](O)[C@@H](CO)O%25)O)[C@H]([C@H](O)[C@@H](CO)O%24)O)[C@H]([C@H](O)[C@@H](CO)O%23)O)[C@H]([C@H](O)[C@@H](CO)O%22)O)[C@H]([C@H](O)[C@@H](CO)O%21)O)[C@H]([C@H](O)[C@@H](CO)O%20)O)[C@H]([C@H](O)[C@@H](CO)O%19)O)[C@H]([C@H](O)[C@@H](CO)O%18)O)[C@H]([C@H](O)[C@@H](CO)O%17)O)[C@H]([C@H](O)[C@@H](CO)O%16)O)[C@H]([C@H](O)[C@@H](CO)O%15)O)[C@H]([C@H](O)[C@@H](CO)O%14)O)[C@H]([C@H](O)[C@@H](CO)O%13)O)[C@H]([C@H](O)[C@@H](CO)O%12)O)[C@H]([C@H](O)[C@@H](CO)O%11)O)[C@H]([C@H](O)[C@@H](CO)O%10)O)[C@H]([C@H](O)[C@@H](CO)O9)O)[C@H]([C@H](O)[C@@H](CO)O8)O)[C@H]([C@H](O)[C@@H](CO)O7)O)[C@H]([C@H](O)[C@@H](CO)O6)O)[C@H]([C@H](O)[C@@H](CO)O5)O)[C@H]([C@H](O)[C@@H](CO)O4)O)[C@H]([C@H](O)[C@@H](CO)O3)O)[C@H]([C@H](O)[C@@H](CO)O2)O)[C@@H](O)[C@H](O)[C@@H](CO)O1 JYJIGFIDKWBXDU-MNNPPOADSA-N 0.000 description 1
229940029339 inulin Drugs 0.000 description 1
VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid group Chemical group C(\C=C/C(=O)O)(=O)O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
239000011159 matrix material Substances 0.000 description 1
125000005395 methacrylic acid group Chemical group 0.000 description 1
239000011707 mineral Substances 0.000 description 1
239000002245 particle Substances 0.000 description 1
ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
229920001592 potato starch Polymers 0.000 description 1
150000003141 primary amines Chemical class 0.000 description 1
238000005086 pumping Methods 0.000 description 1
125000001453 quaternary ammonium group Chemical group 0.000 description 1
238000011084 recovery Methods 0.000 description 1
230000001172 regenerating effect Effects 0.000 description 1
230000008929 regeneration Effects 0.000 description 1
238000011069 regeneration method Methods 0.000 description 1
150000003335 secondary amines Chemical class 0.000 description 1
238000003860 storage Methods 0.000 description 1
150000008163 sugars Chemical class 0.000 description 1
150000003512 tertiary amines Chemical class 0.000 description 1
238000010977 unit operation Methods 0.000 description 1
238000004148 unit process Methods 0.000 description 1
238000005406 washing Methods 0.000 description 1
239000002699 waste material Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/14—Purification of sugar juices using ion-exchange materials
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K11/00—Fructose

Landscapes

Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Biochemistry (AREA)
Organic Chemistry (AREA)
Treatment Of Liquids With Adsorbents In General (AREA)
Treatment Of Water By Ion Exchange (AREA)
Separation Using Semi-Permeable Membranes (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Saccharide Compounds (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

AU13514/88A 1987-03-31 1988-03-23 An improved process for demineralizing sugar solutions Ceased AU600806B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US3284787A	1987-03-31	1987-03-31
US032847		1993-03-16

Publications (2)

Publication Number	Publication Date
AU1351488A AU1351488A (en)	1988-09-29
AU600806B2 true AU600806B2 (en)	1990-08-23

Family

ID=21867139

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU13514/88A Ceased AU600806B2 (en)	1987-03-31	1988-03-23	An improved process for demineralizing sugar solutions

Country Status (9)

Country	Link
EP (1)	EP0292662B1 (ja)
JP (1)	JP2575171B2 (ja)
KR (1)	KR960000480B1 (ja)
AR (1)	AR244809A1 (ja)
AU (1)	AU600806B2 (ja)
BR (1)	BR8801520A (ja)
CA (1)	CA1321193C (ja)
DE (1)	DE3880196T2 (ja)
ES (1)	ES2039490T3 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ATE251946T1 (de) *	1996-07-30	2003-11-15	Cuno Inc	Filterschicht und deren verwendung zur reinigung einer fotoresistzusammensetzung
US6375851B1 (en) *	2000-05-05	2002-04-23	United States Filter Corporation	Continuous liquid purification process
WO2005090612A1 (ja) *	2004-03-19	2005-09-29	Organo Corporation	糖液の精製方法および精製装置
JP5028826B2 (ja) *	2006-03-07	2012-09-19	三菱化学株式会社	水溶液の精製方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU528721B2 (en) *	1978-09-19	1983-05-12	Rohm And Haas Company	Process for the treatment of sugar solutions using ion exchange resins
AU584279B2 (en) *	1986-02-28	1989-05-18	Tate & Lyle Public Limited Company	Decolorization of aqueous saccharide solutions and sorbents therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3692582A (en) *	1970-07-31	1972-09-19	Suomen Sokeri Oy	Procedure for the separation of fructose from the glucose of invert sugar
US4395292A (en) *	1974-04-10	1983-07-26	Anheuser-Busch, Incorporated	High fructose syrup and process for making same
US4187120A (en) *	1978-05-30	1980-02-05	Ecodyne Corporation	Method for purification of polyhydric alcohols
ES523411A0 (es) *	1982-06-28	1985-04-01	Calgon Carbon Corp	Un procedimiento de purificacion de una solucion endulzadora

1988
- 1988-03-16 DE DE8888104190T patent/DE3880196T2/de not_active Expired - Fee Related
- 1988-03-16 ES ES198888104190T patent/ES2039490T3/es not_active Expired - Lifetime
- 1988-03-16 EP EP88104190A patent/EP0292662B1/en not_active Expired - Lifetime
- 1988-03-23 AU AU13514/88A patent/AU600806B2/en not_active Ceased
- 1988-03-24 CA CA000562301A patent/CA1321193C/en not_active Expired - Fee Related
- 1988-03-29 AR AR88310434A patent/AR244809A1/es active
- 1988-03-30 KR KR1019880003474A patent/KR960000480B1/ko not_active Expired - Fee Related
- 1988-03-30 JP JP63077933A patent/JP2575171B2/ja not_active Expired - Lifetime
- 1988-03-30 BR BR8801520A patent/BR8801520A/pt not_active Application Discontinuation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU528721B2 (en) *	1978-09-19	1983-05-12	Rohm And Haas Company	Process for the treatment of sugar solutions using ion exchange resins
AU584279B2 (en) *	1986-02-28	1989-05-18	Tate & Lyle Public Limited Company	Decolorization of aqueous saccharide solutions and sorbents therefor

Also Published As

Publication number	Publication date
JP2575171B2 (ja)	1997-01-22
CA1321193C (en)	1993-08-10
DE3880196T2 (de)	1993-08-05
EP0292662A3 (en)	1991-01-16
AR244809A1 (es)	1993-11-30
KR880011347A (ko)	1988-10-28
EP0292662A2 (en)	1988-11-30
AU1351488A (en)	1988-09-29
KR960000480B1 (ko)	1996-01-08
ES2039490T3 (es)	1993-10-01
EP0292662B1 (en)	1993-04-14
JPS63263099A (ja)	1988-10-31
BR8801520A (pt)	1988-11-08
DE3880196D1 (de)	1993-05-19

Publication	Publication Date	Title
EP0481603A1 (en)	1992-04-22	Separation of weak organic acids from liquid mixtures
US4950332A (en)	1990-08-21	Process for decolorizing aqueous sugar solutions via adsorbent resins, and desorption of color bodies from the adsorbent resins
US5221478A (en)	1993-06-22	Chromatographic separation using ion-exchange resins
US4523960A (en)	1985-06-18	Method for the production of high fructose corn syrup
US20050161401A1 (en)	2005-07-28	Separation of sugars, sugar alcohols, carbohydrates and mixtures thereof
US2772237A (en)	1956-11-27	Process for removing acids from aqueous solutions of organic solutes with ion exchange resins
US2578938A (en)	1951-12-18	Deionization of sugar solutions
US5094694A (en)	1992-03-10	Process for demineralizing a sugar-containing solution
US2578937A (en)	1951-12-18	Mixed bed deionization
US3332890A (en)	1967-07-25	Process of making composite ion exchange resin bodies
AU600806B2 (en)	1990-08-23	An improved process for demineralizing sugar solutions
US3122456A (en)	1964-02-25	Purfication of sugar solutions by means of spongy ion exchangers
US5053137A (en)	1991-10-01	Process for the purification or regeneration of contaminated or spent process sulfolane
US3067007A (en)	1962-12-04	Separation of strong polybasic acids from their salts
WO1989008718A1 (en)	1989-09-21	Process for decolorizing aqueous sugar solutions via adsorbent resins, and desorption of color bodies from the adsorbent resins
US2738322A (en)	1956-03-13	Process for removing sulfuric acid from aqueous solutions of inorganic sulfates
US4006032A (en)	1977-02-01	Process for removing off-flavor from maple sirup
US4543261A (en)	1985-09-24	Separating whey components into high purity products by ion exchange
US6942805B2 (en)	2005-09-13	Sugar juice decolorization by means of mondisperse anion exchangers
US2962438A (en)	1960-11-29	Ion exchange process for water purification
US3252897A (en)	1966-05-24	Process for purifying weak electrolytes and nonelectrolytes
US20170259256A1 (en)	2017-09-14	Regeneration of weak base anion exchange resins
US2649390A (en)	1953-08-18	Process of treating sugar solutions with ion-exchange resins
US3975267A (en)	1976-08-17	Liquid treating system
CN1107116C (zh)	2003-04-30	糖液脱色的离子交换树脂再生液及其再生方法