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Production technology of nano-CuS

A production process and nanotechnology, applied in the field of lubricating oil, can solve problems such as poor dispersion performance, environmental pollution, restricted application, etc., and achieve the effect of improving performance and low price

Active Publication Date: 2017-02-08
广东慧信环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although traditional oil-soluble anti-wear and anti-friction additives can improve the load-carrying capacity and extreme pressure performance of oil products, they will cause environmental pollution during use
Conventional orders of magnitude inorganic particles have severely restricted their application due to their poor dispersion in lubricating oils

Method used

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  • Production technology of nano-CuS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A production process of nano-copper sulfide, comprising the following steps:

[0028] (1) Put 98% CuCl at a speed of 257kg / h 2 .2H 2 O is added to the dissolution tank, and after adding water to dissolve at a speed of 1230kg / h, the solution flows into the filter at a speed of 1491kg / h to remove waste residue, and the filtrate flows into CuCl at a speed of 1486kg / h 2 Standby in the solution storage tank;

[0029] (2) 98% Na at a rate of 543kg / h 2 S.9H 2 O is added to the dissolution tank, and after adding water to dissolve at a speed of 1850kg / h, the solution flows into the filter at a speed of 2390kg / h to remove waste residue, and the filtrate flows into Na at a speed of 2379kg / h. 2 In the S solution storage tank, add alcohol at a rate of 476kg / h to disperse evenly and set aside;

[0030] (3) CuCl 2 solution and Na 2 The S solution flows into the reactor at the speed of 1486kg / h and 2854kg / h, and after 20 minutes of reaction, it enters the thickener at the speed ...

Embodiment 2

[0034] (1) Put 98% CuCl at a speed of 240kg / h 2 .2H 2 O is added to the dissolution tank, and after adding water to dissolve at a rate of 1220kg / h, the solution flows into the filter at a rate of 1480kg / h to remove waste residue, and the filter flows into CuCl at a rate of 1470kg / h 2 Standby in the solution storage tank;

[0035] (2) 98% Na at a rate of 530g / h 2 S.9H 2 O is added to the dissolution tank, and after adding water to dissolve at a speed of 1840kg / h, the solution flows into the filter at a speed of 2350kg / h to remove waste residue, and the filtrate flows into Na at a speed of 2350kg / h. 2 In the S solution storage tank, add alcohol at a rate of 460kg / h to disperse evenly and set aside;

[0036] (3) CuCl 2 solution and Na 2 The S solution flows into the reactor at the speed of 1480kg / h and 2840kg / h, and after 25 minutes of reaction, it enters the thickener at the speed of 4320kg / h;

[0037] (4) After being thickened by the thickener, the waste liquid flows int...

Embodiment 3

[0040] (1) Put 98% CuCl at a speed of 260kg / h 2 .2H 2 O is added to the dissolution tank, and after adding water to dissolve at a rate of 1250kg / h, the solution flows into the filter at a rate of 1500kg / h to remove waste residue, and the filter flows into CuCl at a rate of 1490kg / h 2 Standby in the solution storage tank;

[0041] (2) 98% Na at a rate of 550g / h 2 S.9H 2 O is added to the dissolution tank, and after adding water to dissolve at a rate of 1860kg / h, the solution flows into the filter at a rate of 2400kg / h to remove waste residue, and the filtrate flows into Na at a rate of 2390kg / h. 2 In the S solution storage tank, add alcohol at a rate of 480kg / h to disperse evenly and set aside;

[0042] (3) CuCl 2 solution and Na 2 The S solution flows into the reactor at the speed of 1500kg / h and 2860kg / h, and after 30 minutes of reaction, it enters the thickener at the speed of 4360kg / h;

[0043] (4) After being thickened by the thickener, the waste liquid flows into the...

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Abstract

The invention discloses a production technology of nano-CuS. Nano-CuS particles are prepared from CuCl2.2H2O and Na2S.9H2O through dissolving, filtering, mixing, thickening, vacuum filtering and drying processes. The technology has the advantages of easily available raw materials, low prices, no generation of wastes polluting environment in the reaction process, and environment requirement meeting. The nano-CuS produced in the invention can be used as a lubricating oil additive to greatly improve the performances of lubricating oil in order to meet market demands.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil, and in particular relates to a production process of nano CuS. Background technique [0002] In recent years, nanoparticles have been paid more and more attention in the field of tribology, and there are more and more researches on using inorganic nanomaterials as lubricating oil additives. For example, nano-metal particles, metal oxides, metal sulfides, etc. are used as lubricating oil additives for research on tribological properties. As we all know, to use inorganic nanoparticles as lubricating oil additives, the surface must be improved to prepare inorganic / organic composite nanoparticles, so as to improve their dispersibility in base lubricating oil. Since CuS has an approximate layered structure, it will undergo crystal phase transition and transform into hexagonal crystals at different temperatures, and has the possibility of becoming a solid lubricant. Therefore, the surface modi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/12B82Y40/00C01D3/08C10M125/22
CPCB82Y40/00C01D3/08C01G3/12C10M125/22C10M2201/065
Inventor 李宗强梁敏锐谭铭卓
Owner 广东慧信环保有限公司
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