Iron-based catalyst, and preparation method and application thereof
An iron-based catalyst, coal-based synthesis gas technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. Limiting olefin selectivity, complexity, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0024] Preparation method of iron-based catalyst
[0025] The preparation method of iron-based catalyst provided by the invention adopts hot solvent method, comprises the following steps:
[0026] In the first step, ferric chloride and the doped metal salt precursor are mixed and dissolved with a high-boiling organic alcohol solvent;
[0027] In the second step, add an organic modifier containing a carboxyl group and mix well;
[0028] The third step is to place it at 200° C. for 8-72 hours to obtain the iron-based catalyst provided by the present invention.
[0029] In the above first step, the doped metal salt precursor includes doped metal hydrochloride or nitrate.
[0030] In the above-mentioned first step, the high-boiling point organic alcohol solvent is composed of one or both of ethylene glycol, diethylene glycol, glycerol, and butanediol; the total metal salt in the high-boiling point organic alcohol The concentration is 0.05-0.50M, preferably 0.10-0.25M.
[0031]...
Embodiment 1
[0047] 2.5333g FeCl 3 ·6H 2 O and 0.9273gMnCl 2 4H 2 Add O into 134mL ethylene glycol solution, stir it magnetically to dissolve completely, then add 9.6g NaAc, continue stirring to mix evenly, then transfer to two 100mL stainless steel crystallization kettles, put them in an oven, and place them at 200°C for 72h After that, take it out and let it cool naturally. It was washed several times with ethanol and water, and then vacuum-dried at 60° C. for 6 h to obtain an iron-based catalyst. The primary grain size and monodisperse microsphere size are listed in Table 1.
Embodiment 2
[0049] 2.5333g FeCl 3 ·6H 2 O and 0.9273gMnCl 2 4H 2 O was added to the mixed solution of 134mL ethylene glycol and diethylene glycol (the volume ratio of ethylene glycol and diethylene glycol was 1:3), magnetically stirred to make it completely dissolved, then added 9.6g NaAc, and continued to stir to make it evenly mixed , and then transferred to two 100mL stainless steel crystallization kettles, placed in an oven, and placed at 200°C for 8 hours, then taken out and cooled naturally. It was washed several times with ethanol and water, and then vacuum-dried at 60° C. for 6 h to obtain an iron-based catalyst. The primary grain size and monodisperse microsphere size are listed in Table 1.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More