US4391649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for regenerating a strongly acidic cation exchange resin
Assignee: Organo Corp
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Filing: 1981-06-30
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Granted: 1983-07-05
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Expires: 2001-06-30
Abstract
Abstract This invention relates to a process for regenerating a strongly acidic cation exchange resin which has used for a desalting treatment or partition chromatographic separation of a sugar liquid which lowers its separation capability, by means of contacting said strongly acidic cation exchange resin with an enzyme solution.
Inventors
- 👤 Hiroshi Shimizu
- 👤 Sigeo Sakai
- 👤 Fumihiko Matsuda
- 👤 Reiko Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:53
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/50; B01J49/53
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
41 words
A process for regenerating a strongly acidic cation exchange resin having organic matter deposited on surfaces thereof comprising contacting said strongly acidic cation exchange resin with an enzyme solution whereby said organic matter is removed from the surfaces of said resin.
Claim 2
Dependent Claim
41 words
A process for regenerating a strongly acidic cation exchange resin having organic matter deposited on surfaces thereof comprising contacting said strongly acidic cation exchange resin with an enzyme solution whereby said organic matter is removed from the surfaces of said resin.
Claim 3
Dependent Claim
37 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 1, wherein said resin is contacted with the enzyme solution at a temperature of 30° to 100° C. for at least two hours.
Claim 4
Dependent Claim
24 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 1, wherein the enzyme solution is a solution of amylase.
Claim 5
Dependent Claim
24 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 1, wherein the enzyme solution is a solution of protease.
Claim 6
Dependent Claim
29 words
A process for regenerating a strongly acidic cation exchange resin as claimed is claim 1, wherein the enzyme solution is a solution of a mixture of amylase and protease.
Claim 7
Dependent Claim
33 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 1, wherein the enzyme solution is held in contact with a layer of said resin for a predetermined period.
Claim 8
Dependent Claim
31 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 1, wherein the enzyme solution is recycled through a layer of said resin for a predetermined period.
Claim 9
Dependent Claim
47 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 1 wherein the cation exchange resin having organic matter deposited on surfaces thereof is obtained by contacting a strongly acidic cation exchange resin with a sugar liquid obtained by the saccharification of starch.
Claim 10
Dependent Claim
45 words
A process for regenerating a strongly acidic cation exchange resin having polysaccharides and/or proteins deposited on surfaces thereof comprising contacting said strongly acidic cation exchange resin with an enzyme solution whereby each of said polysaccharides and/or proteins is removed from the surfaces of said resin.
Claim 11
Dependent Claim
45 words
A process for regenerating a strongly acidic cation exchange resin having polysaccharides and/or proteins deposited on surfaces thereof comprising contacting said strongly acidic cation exchange resin with an enzyme solution whereby each of said polysaccharides and/or proteins is removed from the surfaces of said resin.
Claim 12
Dependent Claim
48 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 9 wherein the cation exchange resin having polysaccharides and/or proteins deposited on surfaces thereof is obtained by contacting a strongly acidic cation exchange resin with a sugar liquid obtained by the saccharification of starch.
Claim 13
Dependent Claim
37 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 9, wherein said resin is contacted with the enzyme solution at a temperature of 30° to 100° C. for at least two hours.
Claim 14
Dependent Claim
24 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 9 wherein the enzyme solution is a solution of amylase.
Claim 15
Dependent Claim
24 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 9, wherein the enzyme solution is a solution of protease.
Claim 16
Dependent Claim
29 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 9, wherein the enzyme solution is a solution of a mixture of amylase and protease.
Claim 17
Dependent Claim
31 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 9, wherein the enzyme solution is held in contact with a layer of said cation exchange resin.
Claim 18
Dependent Claim
33 words
A process for regenerating a strongly acidic cation exchange resin as claimed in claim 9, wherein the enzyme solution is recycled through a layer of said cation exchange resin for a predetermined period.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |