Production of tetrahydronaphthalene peroxide

• US 2,568,639 A
• Filed: 11/02/1948
• Issued: 09/18/1951
• Est. Priority Date: 11/02/1948
• Status: Expired due to Term

• Current Assignee: Robert Johnson
• Original Assignee: Robert Johnson
• Inventors: ROBERT JOHNSON
• Application Number:
  US03/057,967
• Time in Patent Office: 1,050 Days
• US Class Current: 568/576
• CPC Class Codes: C07C 2602/10 the other ring being six-membered, e.g. tetraline
• CPC Class Codes: C07C 407/00 Preparation of peroxy compounds
• CPC Class Codes: C07C 407/003 Separation; Purification; Stabilisation; Use of additives
• CPC Class Codes: C07C 409/14 the carbon atom belonging to a ring other than a six-membered aromatic ring

Claims

1. IN THE PRODUCTION OF TETRAHYDRONAPHTHALENE PEROXIDE WHEREIN TETRAHYDRONAPHTHALENE IS OXIDIZED BY OXYGEN-CONTAINING GAS TO FORM A REACTION MIXTURE CONTAINING A SUBSTANTIAL AMOUNT OF TETRAHYDRONAPHTHALENE PEROXIDE, THE METHOD OF OBTAINING A HIGH YIELD OF TETRAHYDRONAPHTHALENE PEROXIDE FROM SAID REACTION MIXTURE WHICH COMPRISES FORMING A GRANULAR PRECIPITATE OF THE SODIUM COMPOUND OF TETRAHYDRONAPHTHALENE PEROXIDE BY NEUTRALIZING SAID REACTION MIXTURE WITH A DILUTE SOLUTION OF CAUSTIC SODA CONTAINING ABOUT 8 TO 10 PERCENT OF SODIUM HYDROXIDE WHILE COOLING SAID REACTION MIXTURE AND CAUSTIC SOLUTION TO A TEMPERATURE BELOW 15* C. TO REMOVE THE HEAT OF NEUTRALIZATION, FILTERING OUT SAID GRANULAR PRECIPITATE FROM SUPERNATANT LIQUID, RECOVERING FREE TEATRAHYDRONAPHTHALENE PEROXIDE FROM SAID PRECIPITATE BY ACIDIFICATION, AND DRYING THE FREE