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A kind of copper chromium black agent prepared by solid phase sintering method promoted by molybdenum oxide and zinc oxide and its preparation

A solid-phase sintering method, zinc oxide technology, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problems of small contact area of ​​reactant particles, reduced chemical resistance, uneven reaction, etc. Achieve the effects of promoting technological progress and development, improving reactivity, and avoiding secondary pollution

Active Publication Date: 2021-10-15
黄山市晶特美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional solid-phase method to prepare copper chromium black requires a relatively high reaction temperature, generally around 1200°C, and high energy consumption.
Since the raw material is solid, even after a long time of grinding and mixing, it is not uniform, resulting in a small contact area of ​​the reactant particles, low reactivity, and uneven and insufficient reaction.
In order to meet the particle size requirements of the application, it is often necessary to grind again, which is easy to cause lattice damage, bring impurities, and reduce its chemical resistance

Method used

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  • A kind of copper chromium black agent prepared by solid phase sintering method promoted by molybdenum oxide and zinc oxide and its preparation
  • A kind of copper chromium black agent prepared by solid phase sintering method promoted by molybdenum oxide and zinc oxide and its preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Batching according to the composition weight percentage of Table 1, and the prepared raw materials are mixed evenly through an inclined mixer.

[0025] (2) Put the mixture obtained in step (1) into a clay sagger, and keep the temperature at 860° C. for 90 minutes for sintering.

[0026] (3) The toner obtained in step (2) is pulverized by mechanical ball milling, and then packaged to obtain a finished product.

Embodiment 2

[0028] (1) Batching according to the composition weight percentage of Table 1, and the prepared raw materials are mixed evenly through an inclined mixer.

[0029] (2) Put the mixture obtained in step (1) into a clay sagger, and keep the temperature at 820° C. for 60 minutes for sintering.

[0030] (3) The toner obtained in step (2) is pulverized by mechanical ball milling, and then packaged to obtain a finished product.

Embodiment 3

[0032] (1) Batching according to the composition weight percentage of Table 1, and the prepared raw materials are mixed evenly through an inclined mixer.

[0033] (2) Put the mixture obtained in step (1) into a clay sagger, and keep the temperature at 960° C. for 180 minutes for sintering.

[0034] (3) The toner obtained in step (2) is pulverized by mechanical ball milling, and then packaged to obtain a finished product.

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Abstract

The invention relates to the technical field of toner, in particular to a copper-chromium black agent prepared by a solid-state sintering method and a method thereof, which uses chromium trioxide, copper oxide, zinc oxide, and molybdenum oxide as raw materials, and is prepared under the condition of 820-960°C. After sintering at high temperature for 1-3 hours, the copper-chromium black agent with high purity, small particle size and uniform particle size can be prepared. The invention has easy-to-obtain raw materials, low cost, low reaction temperature, simple operation process, and dry ball milling avoids water pollution of wet ball milling.

Description

technical field [0001] The invention belongs to the technical field of toner materials, and in particular relates to a copper-chromium black agent prepared by a solid-phase sintering method promoted by molybdenum oxide and zinc oxide and a method thereof. Background technique [0002] The traditional preparation methods of copper chromium black mainly include solid-phase method and liquid-phase method. The solid-phase method usually mixes solid copper carbonate and sodium dichromate with high purity, or copper oxide and chromium trioxide in a certain proportion, grinds them into fine powder, and then puts them in a calciner for calcination for a period of time, and then rinses, Filter, dry and grind to get the finished product. The traditional solid-phase method to prepare copper chromium black requires a relatively high reaction temperature, generally around 1200°C, and high energy consumption. Since the raw material is solid, even after a long time of grinding and mixing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/34C09C3/06
CPCC01P2004/82C09C1/346C09C3/006C09C3/06
Inventor 郁加良
Owner 黄山市晶特美新材料有限公司