Process for preparing amino-sulfonic acid nickel by nickel sulfide concentrate

A technology of nickel sulfamate and nickel sulfide, applied in the directions of sulfamic acid, sulfur compound, inorganic chemistry, etc., can solve the problems of high cost of purification and decontamination treatment, difficult industrialization implementation, large loss of nickel, etc., and achieves easy industrialization. The effect of implementation, small investment and large nickel loss

Inactive Publication Date: 2008-03-05
YUNNAN TIN GROUP HLDG
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Chlorination leaching has high requirements on equipment, and it is difficult to realize industrialization; directly using sulfuric acid atmospheric pressure and pressurized combined leaching, it

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for preparing amino-sulfonic acid nickel by nickel sulfide concentrate

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1:

[0018] In a 50-liter stainless steel pressurized reactor, put 24 liters of water and 10 kilograms of wet nickel sulfide materials. The main components (% on dry basis) are: Ni21.27, Fe27.11, Mn0.016, Mg1.06, S29.95 , Ca<0.10, Co0.583, heat up to 95°C, introduce industrial oxygen, control the oxygen pressure to 0.3Mpa, 40 minutes later, add 670g ammonium sulfate, 250ml industrial nitric acid (63%), heat up to 95°C, pass Enter industrial oxygen, control the reaction pressure to 1.0MPa, cool, filter, and wash after 2 hours to produce 31 liters of leachate (including washing water), and its composition is (g / L): Ni47.41, Fe14.11, Mg0.56, Co0.983. The output leaching residue is 5.3 kg (dry basis), containing 0.356% Ni, and the filter residue obtained by nitric acid pressure leaching and filtering is sent to the flotation system to recover elemental sulfur. Add 5.3 kilograms of potassium sulfate to the 50-liter stirring tank, and heat it to 85-90°C under normal press...

Example Embodiment

[0023] Example 2:

[0024] In a 50-liter stainless steel pressurized reactor, put 24 liters of water and 10 kilograms of wet nickel sulfide material. The main components (% on dry basis) are: Ni23.47, Fe26.51, Mn0.022, Mg2.24, S30.22 , Ca<0.10, Co0.604, raise the temperature to 75°C, pass in industrial oxygen, control the oxygen pressure to 0.3MPa, 40 minutes later, add 800 grams of ammonium sulfate and 600 ml of industrial nitric acid (63%), raise the temperature to 80°C, pass Enter industrial oxygen, control the reaction pressure to 1.0MPa, cool, filter, and wash after 2 hours to produce 31 liters of leachate (including washing water), and its composition is (g / L): Ni49.67, Fe15.31, Mg0.76, Co0.863. The output leaching residue is 5.5 kg (dry basis), containing 0.343% Ni, and the filter residue obtained by pressure leaching and filtering with nitric acid is sent to the flotation system to recover elemental sulfur. Add 5.7 kg of potassium sulfate to the 50-liter stirring tank, and...

Example Embodiment

[0029] Example 3:

[0030] In a 50-liter stainless steel pressurized reactor, put 24 liters of water and 10 kilograms of wet nickel sulfide materials. The main components (% on dry basis) are: Ni22.63, Fe28.23, Mn0.025, Mg2.08, S29.14 , Ca<0.13, Co0.63, heat up to 85°C, pass in industrial oxygen, control the oxygen pressure to 0.4MPa, 40 minutes later, add 750g of ammonium sulfate, 700ml of industrial nitric acid (63%), heat up to 85°C, pass Enter industrial oxygen, control the reaction pressure to 0.8MPa, cool, filter and wash after 2 hours, and produce 31 liters of leachate (including washing water). Its composition is (g / L): Ni48.73, Fe14.82, Mg0.72, Co0.834. The output leaching residue is 5.4 kg (dry basis), containing 0.313% Ni. The filter residue obtained by pressure leaching and filtering with nitric acid is sent to the flotation system to recover elemental sulfur. Add 5.5 kg of potassium sulfate to the 50-liter stirring tank, and heat to 90~95℃ under normal pressure to con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention belongs to the field of wet treating process of nickel sulfide material, and is especially wet process of preparing nickel sulfamate with concentrated nickel sulfide ore. The process includes the following steps: pressure leaching the material with nitric acid; neutralizing and purifying with ammonium carbonate or ammonia water to eliminate Fe, Mn, Zn and other impurities; distilling ammonium nickel carbonate to eliminate ammonia; drying refined nickel carbonate; dissolving refined nickel carbonate in sulfonic acid; depurating nickel sulfamate with black nickel; and regulating nickel sulfamate solution. The present invention has simple technological process, low nickel loss, capacity of recovering Co and other valuable metals, low power consumption, low cost and other advantages.

Description

technical field [0001] The invention belongs to a wet process method for nickel sulfide materials, in particular to a new process for preparing nickel sulfamate by a wet process from nickel sulfide concentrate. Background technique [0002] Nickel sulfamate is a nickel electroplating main salt that has developed rapidly in the world in recent years. Because of its low internal stress and fast deposition speed, it has been widely used in industries such as automobiles, motorcycles, metallurgy, electronics, nickel mesh, and aluminum alloys. In recent years, with the rapid development of the global electronics industry, the quality requirements of electronic products are even more refined. More and more manufacturers have higher and higher quality requirements for electroplated metal layers. The coating solution with low internal stress, good ductility and good uniformity is being vigorously advocated and promoted by many manufacturers. [0003] Metal sulfamate includes nick...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01B21/096C01G53/00C01B17/027
Inventor 王翔王炜王青
Owner YUNNAN TIN GROUP HLDG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap