GB1045032A - Process for simultaneously preparing pyrophoric metals and furane - Google Patents
Process for simultaneously preparing pyrophoric metals and furaneInfo
- Publication number
- GB1045032A GB1045032A GB40764A GB40764A GB1045032A GB 1045032 A GB1045032 A GB 1045032A GB 40764 A GB40764 A GB 40764A GB 40764 A GB40764 A GB 40764A GB 1045032 A GB1045032 A GB 1045032A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furane
- metal
- pyrophoric
- metals
- reoxidized
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/36—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/06—Dry methods smelting of sulfides or formation of mattes by carbides or the like
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Pyrophoric metals (e.g. Pb, Zn, Cd, Sn, Bi or mixtures of two or more of these) (see Division C7) are used in a W<\>uurtz synthesis for the preparation of 1,2-diphenyl-ethane from benzyl chloride in a liquid organic phase.ALSO:A process for preparing pyrophoric metals (e.g. Pb, Zn, Cd, Sn, Bi or mixtures of two or more of these) and furane comprises reacting furfural or furfuryl alcohol, in the wet or dry state, with the appropriate metal oxide(s) at 250-550 DEG C the furane being recovered from the gaseous product (e.g. by absorption or adsorption). The reaction temperature is preferably 5-20 DEG C below the melting point of the metal produced. The metal may be reoxidized (e.g.in air) and re-used to produce more furane. During the reoxidation the pyrophoric metal is preferably mixed with an inert powder (e.g.titanium dioxide alumina or kaolin) to avoid local overheating.ALSO:A process for preparing furane and pyrophoric metals comprises reacting furfural or furfuryl alcohol, in the wet or dry state, at 250-550 DEG C. with a metal oxide, capable of being reduced to pure metal under such conditions, and recovering furane from the gaseous products (e.g. by adsorption or absorption in a known way). The reaction temperature is preferably 5-20 DEG C. below the melting point of the metal produced. The metal may be reoxidized (e.g. in air) and reused to produce more furane. During the reoxidation the pyrophoric metal is preferably mixed with an inert powder (e.g. TiO2Al2O3 or kaolin) to avoid local overheating. The use of pyrophoric lead in a Wurtz synthesis for the preparation of dibenzoyl from benzoyl chloride is also disclosed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB40764A GB1045032A (en) | 1964-01-03 | 1964-01-03 | Process for simultaneously preparing pyrophoric metals and furane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB40764A GB1045032A (en) | 1964-01-03 | 1964-01-03 | Process for simultaneously preparing pyrophoric metals and furane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1045032A true GB1045032A (en) | 1966-10-05 |
Family
ID=9703843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40764A Expired GB1045032A (en) | 1964-01-03 | 1964-01-03 | Process for simultaneously preparing pyrophoric metals and furane |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1045032A (en) |
-
1964
- 1964-01-03 GB GB40764A patent/GB1045032A/en not_active Expired
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