US3232704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering boric acid
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1962-03-21
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Granted: 1966-02-01
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 James E Helbig
- 👤 David O Nelsen
- 👤 Robert E Pennington
- 👤 Isaac J Satterfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:34
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/06; C01B35/08; C01B35/10; C07; C07C; C07C29/00; C07C29/48; C07C29/50; C07C29/52; C07C2601/00; C07C2601/12; C07C2601/14; C07C2601/18; C07C2601/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A PROCESS FOR RECOVERING BORIC ACID FROM A MIXTURE OF REACTION PROUDUCTS FORMED IN THE OXIDATIONOF A NAPHTHENE WITH MOLECULAR OXYGEN AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 100*C. TO ABOUT 350*C. IN THE PRESENCE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, METABORIC ACID, BORIC OXIDE, AND ALKYL ESTER OF ORTHOBORIC ACID, AN ALKYL ESTER OF METABORIC ACID, AND A CYCLOALKYL ESTER OF METABORIC ACID WHICH COMPRISES HYDROLYZING SAID REACTION PRODUCTS WHEREBY AN AQUEOUS PHASE AND AN OIL PHASE ARE FORMED, SEPARATING SAID AQUEOUS AND OIL PHASES, AND EXTRACTING SAID AQUEOUS PHASE WITH A CYCLIC ALCOHOL CORRESPONDING TO THE NAPHTHENE OXIDIZED WHEREBY SUBSTANTIALLY PURE BORIC ACID IS RECOVERED FROM A SECOND AQUEOUS PHASE.
Claim 2
Dependent Claim
118 words
A PROCESS FOR RECOVERING BORIC ACID FROM A MIXTURE OF REACTION PROUDUCTS FORMED IN THE OXIDATIONOF A NAPHTHENE WITH MOLECULAR OXYGEN AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 100*C. TO ABOUT 350*C. IN THE PRESENCE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, METABORIC ACID, BORIC OXIDE, AND ALKYL ESTER OF ORTHOBORIC ACID, AN ALKYL ESTER OF METABORIC ACID, AND A CYCLOALKYL ESTER OF METABORIC ACID WHICH COMPRISES HYDROLYZING SAID REACTION PRODUCTS WHEREBY AN AQUEOUS PHASE AND AN OIL PHASE ARE FORMED, SEPARATING SAID AQUEOUS AND OIL PHASES, AND EXTRACTING SAID AQUEOUS PHASE WITH A CYCLIC ALCOHOL CORRESPONDING TO THE NAPHTHENE OXIDIZED WHEREBY SUBSTANTIALLY PURE BORIC ACID IS RECOVERED FROM A SECOND AQUEOUS PHASE.
Claim 3
Dependent Claim
147 words
A PROCESS FOR RECOVERING BORIC ACID FROM A MIXTURE OF REACTION PRODUCTS FORMED INTHE OXIDATION OF A NAPHTHENE WITH MOLECULAR OXYGEN AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 100*C. TO ABOUT 350*C. IN THE PRESENCE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, METABORIC ACID, BORIC OXIDE, AN ALKYL ESTER OF ORTHOBORIC ACID, AN ALKYL ESTER OF METABORIC ACID, AND A CYCLOALKYL ESER OF METABORIC ACID WHICH COMPRISES HYDROLYZING SAID REACTION PRODUCTS WHEREBY AN AQUEOUS PHASE AND AN OIL PHASE ARE FORMED, SEPARATING SAID AQUEOUS AND OIL PHASES, RECOVERING SAID CYCLIC ALCOHOL AND KETONE FROM SAID OIL PHASE, EXTRACTING SAID AQUEOUS PHASE WITH A CYCLIC ALCOHOL CORRESPONDING TO THE NAPHTHENE OXIDIZED WHEREBY SUBSTANTIALLY PURE BORIC ACID IS RECOVERED IN A SECOND AQUEOUS PHASE AND A SECOND OIL PHASE IS FORMED, AND WATER WASHING SAID SECOND OIL PHASE WHEREBY ADDITIONAL BORIC ACID IS RECOVERED.
Claim 4
Dependent Claim
147 words
A PROCESS FOR RECOVERING BORIC ACID FROM A MIXTURE OF REACTION PRODUCTS FORMED INTHE OXIDATION OF A NAPHTHENE WITH MOLECULAR OXYGEN AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 100*C. TO ABOUT 350*C. IN THE PRESENCE OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, METABORIC ACID, BORIC OXIDE, AN ALKYL ESTER OF ORTHOBORIC ACID, AN ALKYL ESTER OF METABORIC ACID, AND A CYCLOALKYL ESER OF METABORIC ACID WHICH COMPRISES HYDROLYZING SAID REACTION PRODUCTS WHEREBY AN AQUEOUS PHASE AND AN OIL PHASE ARE FORMED, SEPARATING SAID AQUEOUS AND OIL PHASES, RECOVERING SAID CYCLIC ALCOHOL AND KETONE FROM SAID OIL PHASE, EXTRACTING SAID AQUEOUS PHASE WITH A CYCLIC ALCOHOL CORRESPONDING TO THE NAPHTHENE OXIDIZED WHEREBY SUBSTANTIALLY PURE BORIC ACID IS RECOVERED IN A SECOND AQUEOUS PHASE AND A SECOND OIL PHASE IS FORMED, AND WATER WASHING SAID SECOND OIL PHASE WHEREBY ADDITIONAL BORIC ACID IS RECOVERED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |