46results about How to "Low dehydration temperature" patented technology

The invention relates to an ultrathin monocrystalline NiCl2 nanosheet and a preparation method and application thereof. The nanosheet has the thickness of 2-20 nm and has the preferred orientation of(003) crystal face. The preparation method comprises the following steps: firstly placing nickel chloride hexahydrate into a tubular furnace, and dehydrating under the protection of inert gas; and then placing the pretreated powder into a clean and dry tubular furnace, and sublimating under the protection of inert gas to obtain the ultrathin monocrystalline NiCl2 nanosheet. The designed and prepared product is applied to at least one of the following materials: a cathode material of a thermal battery, a supercapacitor, a lithium ion battery, a sodium-ion battery and a magnetic material.

The invention discloses a foam flooding produced liquid demulsifier which is a non-ionic polyether demulsifier and is characterized in that the demulsifier is prepared by three steps: phenolic resin serving as an initiator firstly reacts with epoxypropane in the presence of an alkaline compound serving as a catalyst to obtain a propoxylated polyether compound; the propoxylated polyether compound performs addition reaction with ethylene oxide under the effect of an alkaline catalyst to form an intermediate; and the intermediate reacts with epoxypropane, wherein in the reaction formula of each step, the alkaline compound is sodium hydroxide, potassium hydroxide or sodium ethoxide; in the three steps of reaction for preparing the demulsifier, the mass ratio of the phenolic resin to alkaline compound to epoxypropane in the first step of reaction is (20-30):(0.05-0.15):(50-90); the mass ratio of the propoxylated polyether compound to alkaline compound to ethylene oxide in the second step of reaction is (20-35):(0.1-0.45):(70-160); and the mass ratio of the intermediate to alkaline compound to epoxypropane in the third step of reaction is (20-30):(0.05-0.15):(50-90).

The microbial emulsion breaker is composed of (wt%) 10-25% of microbe, 25-50% of chemical demulsifier, 0.1-5% of inorganic salt and 25-50% of water. The utilization of said invented product can greatly reduce oil and water interfacial tension, and has the advantages of quick dewatering speed, lower dewatering temp. and low oil content in discharged sewage.

The invention discloses a production system of dehydrated caprolactam and a method thereof. The system is characterized by comprising a first-efficiency heat exchanger, a first-efficiency evaporator, a second-efficiency heat exchanger, a second-efficiency evaporator, a third-efficiency heat exchanger and a third-efficiency evaporator which are sequentially connected and then connected with a rectifying tower. The production method comprises the following steps of: pre-heating the materials and then sending the materials to the first-efficiency evaporator for evaporation under the conditions of a temperature of 115-125 DEG C and a pressure range from 0.2 to 0.35MPaG; heating the materials and sending the materials to the second-efficiency evaporator for evaporation under the conditions of a temperature of 105-110 DEG C and a pressure range from 0.05 to 0.1MPaG; heating the materials and sending the materials to the third-efficiency evaporator for evaporation under the conditions of a temperature of 85-95 DEG C and a pressure range from 0.05 to 0.08MPaG; and sending the materials to the rectifying tower for rectification under the conditions of a temperature of 90 DEG C and a pressure range from 0.05 to 0.08MPaG, wherein the dehydrated caprolactam with less than 0.001% of water is obtained at the bottom of the rectifying tower. The invention has the advantages that multiple effective and gradient utilization of steam is realized through rational control of pressure and temperature, a large amount of cold and heat are saved, and the thermal decomposition of the caprolactam is reduced at a lower operating temperature.

This invention relates to fluorin contain silicon interlinkage polyether emulsion breaker and its preparation method. The breaker made up by hydroxy compounds contains fluorosilicic (A)and one kind of alcohol, acid, hydroxybenzene, amine that contains active hydrogen or active hydroxy group or resin contains hydroxybenzene and oxygen ethylene agent and oxygen propylene agent, they conglomerate block polyether (B). There conglomeration is act under function of interlinkage agent (E) toluene disocynate or multi alkylene polyisocyanate or diphenyl methane-4,4- diisocyanate. The agent material components and their weight percentage content as following fluorosilicic 1-15%, (B) 70-98%, (E) interlinkage agent 1-15%. Comparing to existing technique, the dosage is few, desiccation temperature is low, desiccation velocity is fast, oil contain ratio of emerged water is low, it is a high efficiency and quick crude oil demulsifying agent.

The invention relates to a solid honey candy and a preparation method thereof. The solid honey candy comprises the following components in percentage by weight: 100 percent of liquid pure honey, 3 to 6 percent of edible solid gum and 0.7 to 3 percent of teeth stick-resisting agent, wherein the edible solid gum is selected from arabic gum, konjac gum and pectin, and the teeth stick-resisting agentis selected from lecithin, sucrose fatty acid ester and water-soluble glycerol monostearate. The preparation method of the solid honey candy comprises the following steps of: weighing the components in a weight ratio, dissolving the edible solid gum and the teeth stick-resisting agent in hot water, adding the solution into the liquid pure honey, dehydrating the obtained mixed liquid by a vacuum microwave heating method to ensure that water content is below 3 percent, performing cast molding at the temperature of between 60 and 70 DEG C, cooling and demolding to obtain the solid honey candy. The honey content of the solid honey candy is above 90 percent; the color, aroma, taste and nutrients of the original liquid honey are basically not changed; a solid shape can be kept at room temperature; and the edible teeth stick-resisting agent is added into the formula, so that the solid honey candy is not sticky to teeth and has good mouthfeel during chewing. The preparation method is easy.