Hubei Sanli Fengxiang Technology Blog

PPC Plant PPC Technology Introduction PPC (polypropylene carbonate)  is a completely biodegradable environment-friendly plastic synthesized from carbon dioxide and propylene oxide. Besides, due to its using the main source of greenhouse gases---CO2 as the feedstock, PPC not only reduces the emission of greenhouse gases, but also reduces the consumption of fossil fuel. Compared to the degradable PLA(polylactide), it has advantages of high strength, good ductility, lower production cost and etc. PPC polyol with low molecular weight are used to replace conventional petroleum-based polyether, polyester and polycarbonate polyols, while PPC with high molecular weight are employed as film products, oxygen barrier material, injection molding material and etc., especially in package industry and agriculture. ABOUT SL TEC SL TEC  offers high molecular weight  PPC production technology , with the development history a...

Hydrogen Peroxide Manufacturing Plant There are several methods for   Hydrogen Peroxide Plant , among them the AO(auto-oxidation) process is the most prevailing one. In this process, 2-alkyl anthraquinone is mixed with organic solvent to make up the working solution, which is hydrogenated in presence of catalyst, and the resulting is oxidized by air (or oxygen) in counter-current way before being extracted, regenrated, purified and enriched to get commercial hydrogen peroxideproduct. Depending upon the different reactor type in the hydrogenation unit, AO process is further divided into Fixed Bed Reactor Process and Fluidized Bed Reactor Process. SL Tec provides both processes. For this  hydrogen peroxide production technology , SL TEC cooperates with one of the branch companies of  China National Chemical Engineering Co., Ltd. ------  SEDIN Ningbo Engineering Co., Ltd.  to offer a turnkey hydrogen peroxide plant . The Fluid...

Today we explain the  Iso-butyl Acetate Manufacturing Process . First,the acetic acid, isobutanol, cyclohexane, and catalyst are added to the esterification reactor in proportion, the stirring is started, and the temperature is slowly increased by jacketed steam, the esterification is continued for 1 hour, and the water and the azeotrope are continuously distilled. After the condenser is condensed, it enters the separator, the upper oil layer returns to the esterification reactor, and the lower water layer is discarded. The resulting reactants were transferred to storage tanks, the resulting reactants were cooled, the reaction liquids in the storage tanks were filtered and transferred to a neutralization scrubber, neutralized to a pH of 7.0 with a 5% strength sodium carbonate solution, and stirred half Hours, after standing, stratified and distilled, the crude ester was washed again with 20-30 water to obtain the initial product. After washing with water, dehydration was conduct...

Alkyl Phenol are important raw materials and intermediates in the field of fine chemicals, which can be obtained by alkylation of phenol and olefins. It can be used for the creation of non-ionic surfactants, preservatives, mineral flotation agents, resin modifiers, textile auxiliaries and oil emulsifier. Alkyl Phenol Production Process  use the catalyst mainly ion exchange resin, boron trifluoride, activated clay. The mechanics of this alkylation of phenol with olefins is offered by the acidic catalyst H +, H + transferred to the olefin fraction, the formation of tertiary carbon ions and phenol reaction alkyl phenol, and the release of H +, and then proceed with the role of olefins. In the reaction, the alkyl group passes the ortho, para position, and also the ortho-alkyl group can be transferred into the para position under the action of the acidic catalyst, therefore the primary item is the para-alkylphenol. https://www.slchemtech.com/structured-packing/

Today we briefly introduce the  1,3-dioxolane Production Process. 1, 3-dioxane is an excellent organic solvent, widely used for oil and fat solvents, extractants, electrolytic solvents of lithium batteries, pharmaceutical intermediates, etc. In addition, it can be used as raw material for silk finishing agent and sealant. Technological advantages： 1. The use of concentrated formaldehyde rather than polyoxymethylene as raw materials saves the drying of polyformaldehyde and thus reduces equipment investment; 2. Use solid acid catalyst, reduce the requirement of equipment material, and save investment. https://www.slchemtech.com/polypropylene-carbonate-plant/

There are several methods for hydrogen peroxide production,The following is a brief introduction to the operation of  Hydrogen Peroxide Technology . Closed operation, comprehensive ventilation. Operators must be specially trained to strictly observe operating procedures. It is recommended that the operator wear a self-absorption filter respirator (full cover), wear polyethylene protective clothing, and wear neoprene rubber gloves. Keep away from fire and heat sources. https://www.slchemtech.com/hydrogen-peroxide-manufacturing-plant/ Smoking is forbidden in the workplace. Stay away from flammable and combustible materials. Prevent steam from leaking into the workplace air. Avoid contact with reducing agent and active metal powder. Light loading and unloading to prevent damage of packaging and container. Equipped with corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. Empty containers may have a residue. We are professional...