Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for synthesizing tetrammineplatinum sulfate (II)

A technology of tetraammine platinum sulfate and tetraammine platinum dichloride, applied in chemical instruments and methods, ruthenium/rhodium/palladium/osmium/iridium/platinum compounds, inorganic chemistry, etc. Eliminate the problems of large loss of ammonium and precious metals, etc., and achieve the effect of high yield and simple operation

Inactive Publication Date: 2016-06-29
TITAN ADVANCED MATERIALS CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some documents such as U.S. Patent [US6346222B], Chinese Patent (201210315379.6), Chinese Patent (201210099564.6) and Chinese Patent (201310312422.8) have reported methods for tetraammineplatinum sulfate (II) of similar structure, but are used in the synthesis of sulfuric acid by these methods In the case of tetraammine platinum (II), there are mainly shortcomings such as ammonium sulfate impurities in the product; repeated filtration of anion resins results in long operating cycles, large loss of precious metals caused by resin adsorption; and the use of silver sulfate causes high costs and large waste recovery losses of precious metals.

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
  • Method for synthesizing tetrammineplatinum sulfate (II)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] see figure 1 , in the embodiment of the present invention, weigh 500g of potassium chloroplatinite and 200g of ammonium acetate respectively, dissolve them in water and mix them, add water to 30L, adjust the pH value to 5 with acetic acid, cool after reflux for 4h, and filter the precipitated solid. Washed three times with water, washed three times with ethanol and dried to obtain 343 g of cis-dichlorodiammine platinum (II), with a yield of 95%.

[0019] Take by weighing 340g cis-dichlorodiammine platinum (II), stir it into a suspension with water, dissolve it with an appropriate amount of ammonia water until clarification, concentrate the solution under reduced pressure to nearly dryness, filter the obtained solid, and obtain 367g dichlorotetrachloride Ammine platinum (II) solid, yield 97%.

[0020] Weigh 334g of dichlorotetraammine platinum (II) solid, dissolve it in water, add 105mL of 10mol / L sulfuric acid solution, add purified water to 1.8L, and then reflux for 5...

Embodiment 2

[0022] see figure 1 , in the embodiment of the present invention, weigh 750g of potassium chloroplatinite and 375g of ammonium acetate respectively, dissolve them in water and mix them, add water to 38L, adjust the pH value to 5 with acetic acid, cool after reflux for 5h, and filter the precipitated solid. Washed with water for 3 times, washed with ethanol for 3 times, and dried to obtain 520 g of cis-dichlorodiammine platinum (II), with a yield of 96%.

[0023] Weigh 520g of cis-dichlorodiammine platinum (II), stir it into a suspension with water, dissolve it with an appropriate amount of ammonia water until clarification, concentrate the solution to near dryness under reduced pressure, and filter the obtained solid to obtain 567g of dichlorotetrachloride Ammine platinum (II) solid, yield 98%.

[0024] Weigh 501g of dichlorotetraammine platinum (II) solid, dissolve it in water, add 165mL of 10mol / L sulfuric acid solution, add purified water to 3L and then reflux for 5h, and ...

Embodiment 3

[0026] see figure 1 , in the embodiment of the present invention, weigh 1000g of potassium chloroplatinite and 450g of ammonium acetate respectively, dissolve them in water and mix them, add water to 50L, adjust the pH value to 5 with acetic acid, cool after reflux for 5h, and filter the precipitated solid. Washed with water for 3 times, washed with ethanol for 3 times, and then dried to obtain 694 g of cis-dichlorodiammine platinum (II), with a yield of 96%.

[0027] Weigh 690g of cis-dichlorodiammine platinum (II), stir it into a suspension with water, dissolve it with an appropriate amount of ammonia water until clarification, concentrate the solution to near dryness under reduced pressure, and filter the obtained solid to obtain 753g of dichlorotetrachloride Ammine platinum (II) solid, yield 98%.

[0028] Weigh 668g of dichlorotetraammine platinum (II) solid, dissolve it in water, add 220mL of 10mol / L sulfuric acid solution, add purified water to 3.5L, and then reflux for...

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 invention discloses a method for synthesizing tetraammine platinum (II) sulfate, which consists of the following steps: after dissolving potassium chloroplatinite and ammonium acetate in water, cis-dichlorodiamine platinum (II) is produced through reflux reaction ); cis-dichlorodiammine platinum (II) reacts with ammonia water to generate dichlorotetraammine platinum (II); after dichlorotetraammine platinum (II) is dissolved in sulfuric acid water, HCl is obtained after reflux reaction to remove HCl Platinum(II) Tetraammine Sulfate. The invention has simple operation, can effectively remove chloride ions, and the yield is greater than 90%.

Description

technical field [0001] The invention relates to the field of chemistry and chemical engineering, in particular to a method for synthesizing tetraammine platinum (II) sulfate. Background technique [0002] In order to manufacture parts with high stability and high wear resistance, it is usually necessary to deposit a layer of precious metal on the coating. Due to the continuous increase in product requirements, the requirements for residual halogen elements are getting lower and lower, and the amount of halogen-free electroplating solutions is increasing. [0003] Tetraammine platinum (II) compounds are an important class of platinum compounds, widely used in chemical catalysis and electroplating industries. Among them, tetraammine platinum(II) sulfate ([Pt(NH 3 ) 4 ](SO 4 )) is a new type of electroplating main salt, which has been widely used in platinum plating in the electronics industry due to its high electroplating efficiency, cleanliness and environmental protectio...

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): C01G55/00
CPCC01G55/002
Inventor 王庆琨王安之
Owner TITAN ADVANCED MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com