GB1274649A - Manufacture of phosphorus oxychloride - Google Patents

Manufacture of phosphorus oxychloride

Info

Publication number
GB1274649A
GB1274649A GB4068168A GB4068168A GB1274649A GB 1274649 A GB1274649 A GB 1274649A GB 4068168 A GB4068168 A GB 4068168A GB 4068168 A GB4068168 A GB 4068168A GB 1274649 A GB1274649 A GB 1274649A
Authority
GB
United Kingdom
Prior art keywords
pcl
fractionating column
pocl
temperature
phosphorus oxychloride
Prior art date
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.)
Expired
Application number
GB4068168A
Inventor
Charles Joseph Tildesley
James Keith Maund
Basil Newton Robbins
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.)
Solvay Solutions UK Ltd
Original Assignee
Albright and Wilson Ltd
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.)
Filing date
Publication date
Application filed by Albright and Wilson Ltd filed Critical Albright and Wilson Ltd
Priority to GB4068168A priority Critical patent/GB1274649A/en
Publication of GB1274649A publication Critical patent/GB1274649A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/10—Halides or oxyhalides of phosphorus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)

Abstract

1,274,649. Phosphorus oxychloride. ALBRIGHT & WILSON Ltd. 26 Aug., 1969 [26 Aug., 1968], No. 40681/68. Heading C1A. Phosphorus oxychloride is prepared continuously by reacting P 2 O 5 , PCl 3 and Cl 2 under reflux at a temperature above the boiling point of POCl 3 but below 160‹ C., maintaining an excess of P 2 O 5 and PCl 3 with respect to Cl 2 in the reaction mixture, removing PCl 3 and POCl 3 from the upper part of the reflux system and passing them to an intermediate part of a fractionating column maintained at a temperature above the boiling point of PCl 3 but below the boiling point of POCl 3 , recovering liquid POCl 3 from the lower part of the fractionating column and PCl 3 vapour from the upper part of the fractionating column, condensing the PCl 3 vapour and refluxing at least part of the condensate through the fractionating column. The reaction mixture is preferably maintained at a temperature of 100-130‹ C., the head of the reflux system is preferably maintained at a temperature of 90- 110‹ C., and the fractionating column is preferably maintained at a temperature of 75-90‹ C.
GB4068168A 1968-08-26 1968-08-26 Manufacture of phosphorus oxychloride Expired GB1274649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4068168A GB1274649A (en) 1968-08-26 1968-08-26 Manufacture of phosphorus oxychloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4068168A GB1274649A (en) 1968-08-26 1968-08-26 Manufacture of phosphorus oxychloride

Publications (1)

Publication Number Publication Date
GB1274649A true GB1274649A (en) 1972-05-17

Family

ID=10416102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4068168A Expired GB1274649A (en) 1968-08-26 1968-08-26 Manufacture of phosphorus oxychloride

Country Status (1)

Country Link
GB (1) GB1274649A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451801A1 (en) * 1990-04-12 1991-10-16 Albright & Wilson Limited Production of phosphorus compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451801A1 (en) * 1990-04-12 1991-10-16 Albright & Wilson Limited Production of phosphorus compounds

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee