US3887391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the decalcification sugar beet juice
Assignee: Amalgamated Research LLC
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Filing: 1974-02-19
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Granted: 1975-06-03
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Expires: 1994-02-19
Abstract
Abstract Undesirable cations are removed from sugar juice which has undergone a two-stage carbonation by treating the same with the hydrogen form of a carboxylic type cation exchanger, in a column, at a flowrate of 20-200 resin bedvolumes per hour, at an elevated temperature short of boiling, for a contact time less than 3 minutes, and thereafter realkalizing with magnesium oxide and filtering.
Inventors
- 👤 Karlheinz W R Schoenrock
- 👤 Preston Richey
- 👤 Hugh G Rounds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:15
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/02; C13B20/14; C13B20/144
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
89 words
A PROCESS WHICH COMPRISES THE STEPS OF (A) TREATING SUGAR BEET JUICE, AFTER SECOND CARBONATION, WITH THE HYDROGEN FORM OF A RESINOUS CARBOXYLIC TYPE CATION EXCHANGER ARRANGED IN A COLUMN FOR THE REDUCTION OF CALCIUM ION IN THE JUICE, AT A FLOWATE OF BETWEEN 20 AND 200 RESIN BEDVOLUMES PER HOUR AND AT A TEMPERATURE OF 70*-95*C AND FOR A CONTACT TIME OF BETWEEN 20 SECONDS AND 3 MINUTES; (B) REALKALIZING THE SOTR 9.5 AND THEREAFTER (C) FILTERING THE REALKALIZED JUICE TO REMOVE EXCESS MAGNESIUM OXIDE AND INSOLUBLE IMPURITIES.
Claim 2
Dependent Claim
89 words
A PROCESS WHICH COMPRISES THE STEPS OF (A) TREATING SUGAR BEET JUICE, AFTER SECOND CARBONATION, WITH THE HYDROGEN FORM OF A RESINOUS CARBOXYLIC TYPE CATION EXCHANGER ARRANGED IN A COLUMN FOR THE REDUCTION OF CALCIUM ION IN THE JUICE, AT A FLOWATE OF BETWEEN 20 AND 200 RESIN BEDVOLUMES PER HOUR AND AT A TEMPERATURE OF 70*-95*C AND FOR A CONTACT TIME OF BETWEEN 20 SECONDS AND 3 MINUTES; (B) REALKALIZING THE SOTR 9.5 AND THEREAFTER (C) FILTERING THE REALKALIZED JUICE TO REMOVE EXCESS MAGNESIUM OXIDE AND INSOLUBLE IMPURITIES.
Claim 3
Dependent Claim
100 words
A process which comprises the steps of (a) treating sugar beet juice, after second carbonation, with the hydrogen form of a resinous carboxylic type cation exchanger arranged in a column for the reduction of calcium ion in the juice, at a flowrate of between 20 and 200 resin bedvolumes per hour and at a temperature of 70*-95* C and for a contact time of between 20 seconds and 3 minutes; (b) realkalizing the so-treated juice with magnesium oxide to a pH between 7.5 and 9.5 and thereafter (c) filtering the realkalized juice to remove excess magnesium oxide and insoluble impurities.
Claim 4
Dependent Claim
100 words
A process which comprises the steps of (a) treating sugar beet juice, after second carbonation, with the hydrogen form of a resinous carboxylic type cation exchanger arranged in a column for the reduction of calcium ion in the juice, at a flowrate of between 20 and 200 resin bedvolumes per hour and at a temperature of 70*-95* C and for a contact time of between 20 seconds and 3 minutes; (b) realkalizing the so-treated juice with magnesium oxide to a pH between 7.5 and 9.5 and thereafter (c) filtering the realkalized juice to remove excess magnesium oxide and insoluble impurities.
Claim 5
Dependent Claim
19 words
A process according to claim 1, wherein a portion of the insoluble separated in 1(c) is recycled for realkalization.
Claim 6
Dependent Claim
30 words
A process according to claim 1, wherein realkalization is accomplished by forcing the ion exchangetreated juice through a column of granular magnesium oxide to a steady state point of alkalinity.
Claim 7
Dependent Claim
103 words
A continuous process which comprises the steps of treating a stream of sugar beet juice, after its second carbonation, with the hydrogen form of a resinous carboxylic type cation exchanger in a ratio required to maintain a pre-determined exchange rate in the ratio of from 1/100 to 1/000 and at a temperature of 70*-95* C. and for a contact time of between 20 seconds and 3 minutes; separating the so-treated juice from the cation exchanger, re-alkalyzing the so-treated juice with magnesium oxide to a pH between 7.5 and 9.5; and thereafter filtering the re-alkalized juice to remove excess magnesium oxide and insoluble impurities.
Claim 8
Dependent Claim
103 words
A continuous process which comprises the steps of treating a stream of sugar beet juice, after its second carbonation, with the hydrogen form of a resinous carboxylic type cation exchanger in a ratio required to maintain a pre-determined exchange rate in the ratio of from 1/100 to 1/000 and at a temperature of 70*-95* C. and for a contact time of between 20 seconds and 3 minutes; separating the so-treated juice from the cation exchanger, re-alkalyzing the so-treated juice with magnesium oxide to a pH between 7.5 and 9.5; and thereafter filtering the re-alkalized juice to remove excess magnesium oxide and insoluble impurities.
References Cited (Backward Citations)
US3073725A
Cited
US3781174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |