Method of preparing basic copper carbonate

A copper carbonate, basic technology, applied in chemical instruments and methods, copper compounds, inorganic chemistry and other directions, can solve the problems of high cost and difficult to meet market demand, reduce production costs, low raw material prices, improve production efficiency and The effect of product quality

Active Publication Date: 2013-08-07
苏州长湖纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing copper sulfate is used as raw material to prepare basic copper car

Method used

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  • Method of preparing basic copper carbonate

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Embodiment 1

[0024] (1) Inject an acidic solution containing copper chloride into the first container as the liquid A for use, and the Cu in the solution 2+ The mass concentration is 0.52%;

[0025] (2) Prepare a mixed solution containing sodium carbonate and sodium hydroxide in the second container, and the CO in the solution 3 2- with OH - molar ratio to CO 3 2- :OH-=1:0.5, as the standby solution B;

[0026] (3) Prepare the acetic acid solution in the third container as the liquid C for use;

[0027] (4) Add 500L of water to a 2000L jacketed and stirred reactor, and the water temperature is 90°C; pre-mix the liquid C and the liquid A in the intermediate container, so that Cu 2+ with CH 3 COO - The molar ratio of Cu 2+ :CH 3 COO - =1:0.05; the mixed solution and the liquid B to be used are simultaneously and slowly flowed into the fourth reactor, and a pH meter is used to monitor the pH value of the solution in the fourth reactor in real time during the reaction, so that the p...

Embodiment 2

[0031] (1) Inject an acidic solution containing copper sulfate into the first container as the standby solution A, the Cu in the solution 2+ The mass concentration is 6.3%;

[0032] (2) Prepare a mixed solution containing sodium bicarbonate and sodium hydroxide in the second container, and the CO in the solution 3 2- with OH - molar ratio to CO 3 2- : OH-=1:1, as the standby solution B;

[0033] (3) Potassium acetate solution is prepared in the third container as standby solution C;

[0034] (4) Add 500L of water to a 2000L jacketed and stirred reactor, the water temperature is 75°C; pre-mix the liquid C and the liquid B in the intermediate container, so that Cu 2+ with CH 3 COO - The molar ratio of Cu 2+ :CH 3 COO - =1:0.2; The mixed solution and the liquid A to be used are simultaneously and slowly flowed into the fourth reactor, and a pH meter is used to monitor the pH value of the solution in the fourth reactor in real time during the reaction, so that the pH in...

Embodiment 3

[0038] (1) Inject an acidic solution containing copper chloride into the first container as the liquid A for use, and the Cu in the solution 2+ The mass concentration is 10.5%;

[0039] (2) Prepare a mixed solution containing potassium carbonate, sodium hydroxide, and potassium hydroxide in the second container, and the CO in the solution 3 2- with OH - molar ratio to CO 3 2- : OH-=1:1.5, as the standby solution B;

[0040] (3) Sodium acetate solution was prepared in the third container as standby solution C;

[0041] (4) Add 500L of water to a 2000L jacketed and stirred reactor with a water temperature of 55°C; pre-mix the liquid C and the liquid B in the intermediate container so that Cu 2+ with CH 3 COO - The molar ratio of Cu 2+ :CH 3 COO - =1:0.4; the mixed solution and the liquid A to be used are simultaneously and slowly flowed into the fourth reactor, and a pH meter is used to monitor the pH value of the solution in the fourth reactor in real time during the...

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Abstract

The present invention provides a method of preparing basic copper carbonate, comprising the steps of: injecting a Cu<2+> containing acidic solution, a CO3<2-> and OH<-> containing solution and a CH3COO<-> containing solution into a container for a primary reaction, and performing washing and preliminary dehydration treatments to a solid product in the mixed solution to obtain a water containing solid product; and after performing a powerful dehydration treatment, drying at a temperature of 50 DEG C -150 DEG C to obtain the target product basic copper carbonate. According to the invention, copper chloride and copper sulfate are used as starting materials, wherein the copper chloride can be obtained through treatment of waste copper circuits or direct use of circuit board copper chloride waste fluid, and the copper sulfate can be obtained through reextraction by using sulfuric acid after extraction of copper ores or waste copper materials; so the starting materials of the method have relatively low prices, and the use of cheap, readily available and non-toxic starting materials improves production efficiency and product quality, and reduces production costs of the basic copper carbonate.

Description

technical field [0001] The invention relates to the field of chemical production, in particular to a preparation method of basic copper carbonate. Background technique [0002] Basic copper carbonate, also known as copper carbonate, is widely used. Such as organic synthesis catalysts, copper-tin alloy electroplating in the electroplating industry as copper ion additives, pollution-free pesticides, feed additives, etc. The existing method of preparing basic copper carbonate with copper sulfate as raw material has been difficult to meet the market demand because of the high cost. Therefore look for a kind of lower-cost basic copper carbonate manufacturing method to be more in line with the development trend of the market. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the object of the present invention is to provide a method for preparing basic copper carbonate, which adopts cheap and easy-to-get raw materials, improves production ...

Claims

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Application Information

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IPC IPC(8): C01G3/00
Inventor 廖勇志
Owner 苏州长湖纳米科技有限公司
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