Preparation method of 1, 2-propane diamine
A technology for propylene diamine and preparation process, which is applied in the field of preparation of 1,2-propylene diamine, can solve the problems of environmental pollution by organochlorine compounds, high cost of raw materials, low yield, etc., and achieves low requirements on equipment material and single pass of raw materials. High conversion rate and good product selectivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0033] The preparation method of the catalyst: the molecular sieve is prepared by the conventional preparation process of the H-ZSM-5 molecular sieve, and the salt of Ni, Mo and Pd is made into a mixed solution in proportion, the H-ZSM-5 molecular sieve is soaked, dried and put into Roasting 6h in muffle furnace 490 ℃, after roasting, make Ni is 20%, Mo is 3% and content is the catalyst semi-finished product of 0.1% Pd, after the semi-finished catalyst that makes is loaded into reactor, with pure hydrogen at 0.05MPa pressure , 460 ℃ temperature, space velocity 1000h-1 under the conditions of reduction for 24 hours to obtain the finished catalyst;
[0034] 2. The operating conditions of the reaction system using propylene oxide as the raw material are: the reaction pressure is 0.6-1.0Mpa, the ratio of hydrogen and ammonia in the system is controlled so that hydrogen accounts for 3-50%, and the reaction temperature is 150-200°C , the feeding amount is fed at a speed of 90ml / h ac...
Embodiment 1
[0039] The operating conditions for synthesizing 1,2-propanediamine from propylene oxide are as follows: the reaction pressure is 0.8Mpa, the ratio of hydrogen and ammonia in the system is controlled so that hydrogen accounts for 10%, and the reaction temperature is 160°C.
[0040] The experimental data are:
[0041] water Propylene oxide 1,2-propanediamine monoisopropanolamine Diisopropanolamine 30.12 1.62 56.02 10.12 1.10
Embodiment 2
[0043] The operating conditions for synthesizing 1,2-propanediamine with propylene oxide as raw material are: the reaction pressure is 0.7Mpa, the ratio of hydrogen and ammonia in the system is controlled so that hydrogen accounts for 18%, and the reaction temperature is 170°C.
[0044] The experimental data are:
[0045] water Propylene oxide 1,2-propanediamine monoisopropanolamine Diisopropanolamine 31.12 1.60 56.53 9.65 1.07
PUM

Abstract
Description
Claims
Application Information

- Generate Ideas
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com