GB679082A - Manufacture of catalyst - Google Patents
Manufacture of catalystInfo
- Publication number
- GB679082A GB679082A GB30939/50A GB3093950A GB679082A GB 679082 A GB679082 A GB 679082A GB 30939/50 A GB30939/50 A GB 30939/50A GB 3093950 A GB3093950 A GB 3093950A GB 679082 A GB679082 A GB 679082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- nickel
- reaction zone
- orthophosphate
- specified
- 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
- B01J27/185—Phosphorus; Compounds thereof with iron group metals or platinum group metals
- B01J27/1853—Phosphorus; Compounds thereof with iron group metals or platinum group metals with iron, cobalt or nickel
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
- C07C5/333—Catalytic processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Dehydrogenation of aliphatic olefines containing 4-6 carbon atoms to diolefines is effected by passing the olefine in admixture with steam over a catalyst comprising calcium nickel phosphate (see Group III) at 550-700 DEG C. Specified dehydrogenations are butylene to butadiene, isoamylene to isoprene and 2 : 3 - dimethylbutylene to 2 : 3 - dimethyl butadiene 1 : 3. Specifications 634,391 and 634,580 are referred to.ALSO:A calcium nickel phosphate catalyst for the dehydrogenation of olefines to diolefines is prepared by passing continuously and simultaneously into a reaction zone a water soluble alkaline substance and an aqueous solution of a calcium salt and a nickel salt, the alkaline substance or the solution also comprising or containing a water-soluble orthophosphate and the calcium and nickel salts being in the relative proportion corresponding to 6.5 to 12 atoms of calcium per atom of nickel, adding the constituents at a rate of flow sufficient to maintain the pH of the mixture at 7.7 to 8.3, agitating the mixture and retaining at least a portion of the precipitated calcium nickel phosphate in the reaction zone while continuing the addition of reactants. The alkaline substance and the salt solution are added to the reaction zone at remotely separated points. Specified alkaline substances are ammonia, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, sodium hydroxide, sodium carbonate, potassium acetate, or when combined with the orthophosphate, ammonium or alkali metal orthophosphate. Specified calcium and nickel salts are the chlorides, bromides and nitrates. The orthophosphate, when added to the salt solution is orthophosphoric acid. The phosphate slurry is withdrawn, preferably by overflow, from the reaction zone either direct to a filter or, preferably, first to a settling tank. The filter cake is water-washed, dried at, e.g. 100 DEG -370 DEG C, ground, mixed with a lubricant, e.g. graphite or a hydrocarbon oil, pelletted, if desired in admixture with a promoter, e.g. chrome oxide, and finally heated in an oxygen containing gas, e.g. steam and air, at 450 DEG C-750 DEG C. Specifications 634,391 and 634,580 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB30939/50A GB679082A (en) | 1950-12-19 | 1950-12-19 | Manufacture of catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB30939/50A GB679082A (en) | 1950-12-19 | 1950-12-19 | Manufacture of catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB679082A true GB679082A (en) | 1952-09-10 |
Family
ID=10315470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30939/50A Expired GB679082A (en) | 1950-12-19 | 1950-12-19 | Manufacture of catalyst |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB679082A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2464747A1 (en) * | 1979-09-11 | 1981-03-20 | Batalin Oleg | Calcium phosphate catalyst prodn. for decomposition of 1,3-dioxane(s) - by pptn. of calcium phosphate in presence of ammonia,then steaming in presence of conditioning agent |
-
1950
- 1950-12-19 GB GB30939/50A patent/GB679082A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2464747A1 (en) * | 1979-09-11 | 1981-03-20 | Batalin Oleg | Calcium phosphate catalyst prodn. for decomposition of 1,3-dioxane(s) - by pptn. of calcium phosphate in presence of ammonia,then steaming in presence of conditioning agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3703593A (en) | Method of preparing an improved dehydrogenation catalyst | |
| GB667870A (en) | Process for the preparation of hydroxylamine | |
| US2456367A (en) | Calcium-nickel phosphate catalyst and preparation thereof | |
| GB679082A (en) | Manufacture of catalyst | |
| US3752878A (en) | Hydrolysis of aryl halides with a rare earth metal phosphate | |
| US2377113A (en) | Dehydrogenation of hydrocarbons | |
| GB700398A (en) | Improvements in or relating to the catalytic hydrogenation of streptomycin to dihydrostreptomycin | |
| US3852369A (en) | Processes for dehydrogenation of hydrocarbons | |
| US3625647A (en) | Method of preparing calcium-nickel phosphate catalyst | |
| US2853535A (en) | Catalytic process for preparing a conjugate diene containing 5 to 8 carbon atoms by dehydrating a tertiary alcohol | |
| US4017424A (en) | Hydrocarbon steam reforming and methanation catalysts | |
| US3824195A (en) | Oxidative dehydrogenation catalyst | |
| US3943068A (en) | Nickel-phosphorus oxidative dehydrogenation catalyst | |
| GB711696A (en) | A process for the production of synthetic products from reaction mixtures comprising unsaturated hydrocarbons, carbon monoxide and hydrogen | |
| GB738713A (en) | Precipitation of vanadium oxides from aqueous solutions | |
| US3327006A (en) | Chromium iron phosphate catalyst and method for dehydrogenating and cracking alkanes and olefins | |
| US3582312A (en) | Micronutrient fertilizer and method for its preparation | |
| US2527522A (en) | Catalytic polymerization of hydrocarbons | |
| US3380932A (en) | Dehydrogenation catalysts containing chromium phosphate, and their method of preparation | |
| GB1341351A (en) | Recovery of pure-schaeffers salt from crude sulphonation mixtures | |
| US1668838A (en) | Zinc oxide catalysts | |
| US3327003A (en) | Iron nickel phosphate catalyst and method for dehydrogenating and cracking alkanes and olefins | |
| US2417804A (en) | Stable iodized calcium phosphate | |
| KR950008963B1 (en) | Method for the preparation of catalyst for methylation of phenol | |
| GB418061A (en) | Improvements in the manufacture and production of weed-killing preparations |