Galaxolide production process
A technology for the production process of Jiale musk, which is applied in aerobic and anaerobic process treatment, biological water/sewage treatment, multi-stage water/sewage treatment, etc., and can solve the problems of high hazards to operators, equipment corrosion, and obsolete process routes, etc. problems, to achieve the effect of reducing production costs and reducing the discharge of three wastes
Active Publication Date: 2021-07-30
安徽金轩科技有限公司
View PDF9 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] At present, Jiale musk mainly adopts the synthesis route in the invention patent of IFF Company in the 1960s. This process route is relatively old, and the main problems are as follows: 1. The source of the required dihaloalkane is difficult, and there are many foreign substances formed during the preparation, which is difficult to control; 2. 1. Due to the use of acetic acid in the process of preparing indane, it is difficult to treat the waste liquid after the reaction, and there is a problem of "three wastes"; 3. In the process of preparing indanol, an excessive amount of pentamethylindane needs to be used as a raw material and solvent to reduce the concentration of the solution. Viscosity greatly increases the cost; 4. Hydrogen chloride gas is used in the process of preparing Jiale musk, and it reacts with polyoxymethylene to form a highly toxic by-product chloromethyl ether, which is more harmful to operators; 5. The added hydrogen chloride gas corrodes the equipment seriously
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0056] The present invention will be described in detail below in conjunction with specific embodiments.
[0057] A production process of musk musk, comprising a musk musk synthesis unit 10, a pentamethylindane rectification unit 20, a pentamethylindane recovery unit 30, a musk musk rectification unit 40 and a waste treatment unit 50, the following Instructions for each unit:
[0058] 1. Jiale musk synthesis unit
[0059] The following chemical reaction is carried out in the Jiale musk synthesis unit 10. A three-step synthetic route is adopted. First, methylstyrene and isopentene undergo a Friedel-Crafts alkylation ring-closure reaction to generate pentamethylindane, and then pentamethylindane Under the conditions of chlorobenzene solvent and aluminum trichloride catalyst, it undergoes hydroxyalkylation reaction with propylene oxide to generate pentamethylindanol, and finally undergoes cyclization with methylal in the same reaction system that generates pentamethylindanol. T...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the field of musk production, and particularly relates to a galaxolide production process which comprises a galaxolide synthesis unit, a pentamethylindane rectification unit, a pentamethylindane recovery unit, a galaxolide rectification unit and a three-waste treatment unit. The galaxolide synthesis unit comprises a pentamethylindane synthesis module, a pentamethylindane alcohol synthesis module and a galaxolide synthesis module. Compared with an existing process, the process route is relatively simple, the safety is relatively high, and the method is relatively environment-friendly.
Description
technical field [0001] The invention belongs to the field of musk production, and in particular relates to a production process of Jiale musk. Background technique [0002] Jiale musk is a tricyclic isochromatic musk first successfully synthesized by chemists from the American IFF Company, and it was patented in 1962. Galaxolide is a widely used musk-type synthetic fragrance, which does not exist in nature. Its relative density is 1.0054, its refractive index is 1.5342, its flash point is above 93°C, and its boiling point is 129°C / 106.6Pa. It is a colorless highly viscous liquid, soluble in ethanol and oil, insoluble in water. [0003] Jiale musk itself has a high degree of musk aroma, elegant fragrance, sweet aroma, excellent penetration and diffusion, long-lasting fragrance, good stability, and is often used in cosmetic creams, lotions, soaps, daily essences, and tobacco essences , Food flavors, preparation of cosmetic flavors and fixatives for flavors, fragrances and f...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): C07D311/94C02F9/14C02F101/30C02F103/36
CPCC07D311/94C02F9/00C02F1/66C02F1/463C02F2001/007C02F1/4672C02F3/30C02F2305/023C02F7/00C02F1/72C02F2101/30C02F3/34C02F2103/36
Inventor孙多龙程光锦张云飞何基达常业坤
Owner安徽金轩科技有限公司