GB1242135A - Catalytic compositions - Google Patents
Catalytic compositionsInfo
- Publication number
- GB1242135A GB1242135A GB3999768A GB3999768A GB1242135A GB 1242135 A GB1242135 A GB 1242135A GB 3999768 A GB3999768 A GB 3999768A GB 3999768 A GB3999768 A GB 3999768A GB 1242135 A GB1242135 A GB 1242135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filler
- orthophosphate
- composition
- acid
- trilithium
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
- B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
- B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
- B01J27/1806—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with alkaline or alkaline earth metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
1,242,135. Catalyst compositions. NAUCHNO - ISSLEDOVATELSKY INSTITUT SINTETICHESKIKH SPIRTOV I IORGANICHESKIKH PRODUKTOV. 21 Aug., 1968, No. 39997/68. Heading B1E. [Also in Division C2] A catalyst composition comprises trilithium orthophosphate (Li 3 PO 4 ) and a filler which is asbestos or talc or pumice. The filler may constitute from 10 to 40 per cent by weight of the composition when asbestos, from 20 to 60 percent by weight of the composition when talc and from 20 to 35 per cent by weight of the composition when pumice. The catalyst composition may be prepared by precipitating trilithium orthophosphate from an aqueous solution containing a lithium salt or lithium hydroxide in the presence of excess alkali by for example trisodium orthophosphate dodecahydrate, mixing the precipitated trilithuim orthophosphate with filler, washing the resulting mixture and compacting and drying the washed mixture. The composition may be compacted by moulding into spheres having a diameter of 3 mm, which spheres may be dried, initially at ambient temperature and then at a temperature rising to 200‹C, over 10 hours. The filler may be mixed with the trilithium orthophosphate during precipitation thereof. Prior to being mixed with the trilithium orthophosphate, the filler may be treated with an inorganic acid, for example nitric acid, and thereafter washed with water, the acid used being an acid which does not form insoluble salts with compounds present as impurities in the filler; such pretreatment with acid is not necessary if the filler is of high purity, for example if the filler is pharmaceutical grade talc. Chrysotile is the preferred form of asbestos. The filler may be used in the form of a powder having a particle size not less than 60 (Tyler) mesh. The catalyst composition may be used in the preparation of allyl alcohol from propylene oxide by molecular rearrangement. Reference is made in the specification to a known catalyst composition comprising trilithium orthophosphate and a filler which is active carbon or diatomaceous earth.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3999768A GB1242135A (en) | 1968-08-21 | 1968-08-21 | Catalytic compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3999768A GB1242135A (en) | 1968-08-21 | 1968-08-21 | Catalytic compositions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1242135A true GB1242135A (en) | 1971-08-11 |
Family
ID=10412634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3999768A Expired GB1242135A (en) | 1968-08-21 | 1968-08-21 | Catalytic compositions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1242135A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720598A (en) * | 1984-11-28 | 1988-01-19 | Stamicarbon B.V. | Process for preparing a basic lithium phosphate catalyst for the isomerization of alkene oxides |
ES2036449A1 (en) * | 1991-06-06 | 1993-05-16 | Repsol Quimica Sa | Isomerisation of propylene oxide to allyl:alcohol |
US5262371A (en) * | 1992-05-06 | 1993-11-16 | Arco Chemical Technology, L.P. | Alkylene oxide isomerization process and catalyst |
-
1968
- 1968-08-21 GB GB3999768A patent/GB1242135A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720598A (en) * | 1984-11-28 | 1988-01-19 | Stamicarbon B.V. | Process for preparing a basic lithium phosphate catalyst for the isomerization of alkene oxides |
ES2036449A1 (en) * | 1991-06-06 | 1993-05-16 | Repsol Quimica Sa | Isomerisation of propylene oxide to allyl:alcohol |
US5262371A (en) * | 1992-05-06 | 1993-11-16 | Arco Chemical Technology, L.P. | Alkylene oxide isomerization process and catalyst |
US5292974A (en) * | 1992-05-06 | 1994-03-08 | Arco Chemical Technology, L.P. | Alkylene oxide isomerization process and catalyst |
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