Technique for producing stearate by dry method and device

A technology of stearate and production process, which is applied in the direction of carboxylate preparation, chemical/physical/physicochemical fixed reactor, organic chemistry, etc., can solve the problem of excessive COD and suspended solids in wastewater, increasing the pressure of wastewater treatment and Pollution control costs and other issues, to achieve the effect of improving production efficiency, shortening production cycle, and complete response

Active Publication Date: 2012-11-21
HUZHOU CITY LINGHU XINWANG CHEM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also a small amount of ultra-fine powder passing through the filter, causing wastewater COD and suspended solids to exceed the standard; at the same time, it also increases the pressure of wastewater treatment and the cost of pollution control

Method used

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  • Technique for producing stearate by dry method and device
  • Technique for producing stearate by dry method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: Reaction raw material: 48 kilograms of calcium hydroxide, 352 kilograms of stearic acid, 15 kilograms of deionized water.

[0024] First put stearic acid into the reaction vessel 4 through the feeding port 6, heat and stir for about 10 minutes, after the temperature rises to 50°C, put calcium hydroxide into it, and after fully stirring, pour 15kg of deionized water from the feeding port, and pass The gas inlet and outlet pipeline port 7 is continuously fed with nitrogen, and the air in the reaction vessel 4 is discharged from the top feed inlet 6. After gradually replacing the air in the reaction vessel 4 with nitrogen, the feed inlet 6 and the gas inlet and outlet pipeline mouth 7 valves are closed tightly. While stirring, gradually heat the reaction mass to between 80°C and 120°C. Keep the vapor pressure formed by the deionized water and the reaction water in the reaction vessel 4 between 0 and 0.1 MPa. After reacting for about two hours, open the valve...

Embodiment 2

[0025] Embodiment 2: Reaction raw materials: 30 kilograms of calcium oxide, 285 kilograms of stearic acid, 12 kilograms of deionized water.

[0026] First, calcium oxide is put into the reaction vessel 4 through the feeding port 6, stirred and added with deionized water, after the calcium oxide and water react completely, stearic acid is put in, and nitrogen gas is continuously introduced through the gas inlet and outlet pipe port 7, and the reactor 4 The air is discharged from the top feeding port 6, and after gradually replacing the air in the reactor 4 with nitrogen, close the feeding port 6 and the gas inlet and outlet pipe port 7 valves. While stirring, gradually heat the reaction mass to between 80°C and 120°C. Keep the vapor pressure formed by the deionized water and the reaction water in the reactor 4 between 0-0.1 MPa. After reacting for about two hours, open the valve of the gas inlet and outlet pipeline 7, and discharge the nitrogen, deionized water vapor and the w...

Embodiment 3

[0027] Embodiment 3: Reaction raw materials: 49.5 kilograms of zinc oxide, 330 kilograms of stearic acid, 15 kilograms of deionized water.

[0028] First, zinc oxide is put into the reaction vessel 4 through the feeding port 6, stirred and added with deionized water, after the reaction between the zinc oxide and water is completed, stearic acid is put in, and nitrogen gas is continuously fed through the gas inlet and outlet pipe port 7, and the reactor 4 The air is discharged from the top feeding port 6, and after gradually replacing the air in the reactor 4 with nitrogen, close the feeding port 6 and the gas inlet and outlet pipe port 7 valves. While stirring, gradually heat the reaction mass to between 80°C and 110°C. Keep the vapor pressure formed by the deionized water and the reaction water in the reactor 4 between 0-0.1 MPa. After reacting for about two hours, open the valve of the gas inlet and outlet pipeline 7, and discharge the nitrogen, deionized water vapor and th...

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Abstract

The invention discloses a technique for producing stearate by a dry method. The technique comprises the following steps of: adding stearate, metal compound and water with the proportion of 82 to 88%:10 to 15%:2 to 5% into a reactor, stirring and reacting for 1 to 5 hours with the temperature of 50 to 150 DEG C and pressure of 0 to 0.10 MPa, and then obtaining the stearate. The reaction device is characterized in that a motor (1) is connected with a speed reducer (2) which is connected with a gear transmission (3); the gear transmission (3) is connected with a stirrer (9) arranged in a reaction container (4); and a feeding port (6) is arranged above the reaction container (4) which is externally provided with a clamping sleeve (8), and a discharging port (10) is arranged below the reactioncontainer (4). The invention simplifies operation steps, lowers the cost and energy consumption, reduces the discharging volume of wastewater, decreases pollution-controlling cost, further reduces the influence on environment and overcomes the defects of the technique of the traditional dry method for producing the stearate.

Description

technical field [0001] The present invention relates to a kind of production technology and device of stearate, specifically a kind of technology and device of dry production stearate. Background technique [0002] There are many kinds of stearates (also known as soaps), the common ones are lead stearate, barium stearate, zinc stearate, calcium stearate and magnesium stearate. This series of products has a wide range of applications, such as pharmaceutical industry, food industry, paint, paper, stationery, cosmetics, plastics, rubber, synthetic fiber and other industries. [0003] The production of stearate products, such as calcium stearate, magnesium stearate, zinc stearate, etc., is traditionally produced by double decomposition. The biggest disadvantage of double decomposition production is low efficiency and large amount of waste water. Taking calcium stearate as an example, the current market prospect of calcium stearate is good. This product is non-toxic and has a w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C53/126C07C51/41B01J19/18
Inventor 沈云飞罗明壮
Owner HUZHOU CITY LINGHU XINWANG CHEM CO LTD
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