GB482549A - A process for the reactivation of spent clay - Google Patents
A process for the reactivation of spent clayInfo
- Publication number
- GB482549A GB482549A GB10647/37A GB1064737A GB482549A GB 482549 A GB482549 A GB 482549A GB 10647/37 A GB10647/37 A GB 10647/37A GB 1064737 A GB1064737 A GB 1064737A GB 482549 A GB482549 A GB 482549A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clay
- tank
- solvent
- steam
- hydrocarbons
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3433—Regenerating or reactivating of sorbents or filter aids other than those covered by B01J20/3408 - B01J20/3425
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
- B01J20/3466—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase with steam
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0482549/III/1> Spent refining clays used in the refining of oils, fats and similar substances, are regenerated by treating with a non-acidic organic solvent in the presence of a vaporizable basic substance, and after removing the solvent, treating the clay with steam. The solvent and basic substance used do not form polymers under the treatment conditions, and preferably boil below 200 DEG C., whereby they are completely vaporized at the final steaming stage. The extraction may be effected by a single substance consisting of a vaporizable organic base. Suitable solvents are; primary and secondary alcohols, ketones, ethers, acetals, mono-nitro-derivatives of hydrocarbons, chlorinated hydrocarbons, or hydrocarbons. Examples; isopropyl, butyl, amyl, benzyl, or cyclohexyl alcohols, furfurol, acetaldehyde, acetone, methylpropyl ketone, diacetone, isopropylethyl ether, ethylene glycol ethers, nitro methane, naphtha, gasoline, xylene, chloroform, or carbon tetrachloride. Ketones of 4 to 7 carbon atoms and chloroform are preferred. Mixtures of polar and non-polar solvents may be used especially mixtures of solvents of high and low dipole moment, for example, mixtures of methyl alcohol or acetone and aromatic hydrocarbons or chlorinated hydrocarbons. Low dipole moment is defined as from 0 to 1.10-18 e.s.u. Vaporizable basic substances are; ammonia, amines, imines, alkanolamines, or hydrazines. Examples; ethyl-, or isopropylamine, ethylene diamine, aniline, mono-ethanolamine, methyl hydrazine, pyridine, quinoline, pyrrole, piperidine, piperazine or petroleum bases. Spent clay, such as bauxite or silica gel, containing oil enters a filter 2 through a line 1. Liquid is drawn off into a still 4, and the clay is first washed with naphtha admitted from a tank 5, then treated with steam and dried by a gas such as air or flue gas. The clay is then transferred to an extractor 13 where it is agitated with a non-acidic solvent admitted from a tank 28, together with the basic substance which may be admitted to the tank 28 or added directly through a line 33. This step may be effected under ordinary or super atmospheric pressure. After washing, the liquid is withdrawn through a line 14 into a tank 15 from which it passes to a still 24. Vapours are condensed at 17 and the condensate is pumped from a separator 19 to the tank 28. The extracted clay is freed from solvent by steam, the vapours being condensed and then freed from water in the separator 19. Steaming is continued, preferably under reduced pressure, until the issuing vapours are free from the basic substance. The steam may contain carbon dioxide, sulphur dioxide, sulphuretted hydrogen, or hydrochloric acid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US482549XA | 1936-04-15 | 1936-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB482549A true GB482549A (en) | 1938-03-31 |
Family
ID=21953542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10647/37A Expired GB482549A (en) | 1936-04-15 | 1937-04-14 | A process for the reactivation of spent clay |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB482549A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2473880A (en) * | 1942-08-11 | 1949-06-21 | Allied Chem & Dye Corp | Cleaning metal catalysts with alcoholic caustic solution |
TWI467010B (en) * | 2010-11-15 | 2015-01-01 | Nisshin Oillio Group Ltd | Method for producing recycled white clay, recycled white clay, and method for producing purified fat |
-
1937
- 1937-04-14 GB GB10647/37A patent/GB482549A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2473880A (en) * | 1942-08-11 | 1949-06-21 | Allied Chem & Dye Corp | Cleaning metal catalysts with alcoholic caustic solution |
TWI467010B (en) * | 2010-11-15 | 2015-01-01 | Nisshin Oillio Group Ltd | Method for producing recycled white clay, recycled white clay, and method for producing purified fat |
US9023749B2 (en) | 2010-11-15 | 2015-05-05 | The Nisshin Oillio Group, Ltd. | Method for producing regenerated clay, regenerated clay, and method for producing purified fats and oils |
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