Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing pure nitrogen monoxide gas and liquid dinitrogen trioxide in a joint way

A technology of dinitrogen trioxide and nitric oxide, applied in the direction of dinitrogen trioxide, nitric oxide, nitrogen oxides/oxyacids, etc., can solve problems such as defects, achieve high cost, high efficiency, and easier reaction The effect of the operation

Active Publication Date: 2014-06-18
ANHUI WANBEI COAL REFCO GRP LTD HANSHAN HENGTAI NONMETALLIC MATERIALS BRANCH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dinitrogen trioxide is the acid anhydride of nitrous acid. Because nitrous acid is unstable, it is generally stored as sodium nitrite. It can be generated by strengthening the acid during use. Nitrous acid is widely used in chemical reactions, such as nitrosation and diazotization reactions. In the process of making nitrous acid from sodium nitrite, water and strong acid need to be added, and sodium ions come out after the reaction, so its application has certain limitations
But its production has flaws

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 producing pure nitrogen monoxide gas and liquid dinitrogen trioxide in a joint way

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An apparatus for a process for the combined production of pure nitric oxide gas and liquid dinitrogen trioxide, comprising a tubular reactor a1, followed by an intermediate separator a2, a water cooler a3, and a tubular reactor b4 , intermediate separator b 5, water cooler b 6, tubular reactor c 7, terminal separator 8 and water cooler c 9; after the top outlets of intermediate separator a 2, intermediate separator b 5 and terminal separator 8 are connected There are two branches, one branch is connected to the NO2 absorption tower 10 and the NO filling compressor 12, and the bottom of the NO2 absorption tower 10 is connected to the absorption tower circulation pump 11; the other branch is connected to the water cooler d 13, acid remover 14, compressor Machine 15, frozen brine cooler 16, ammonia cooler 17, reactor 18. The reactor 18 is a ceramic structured packing tower, the bottom of which is connected to an adjustment tank 19 .

[0037] The process of using this devi...

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 relates to a method and equipment for producing pure nitrogen monoxide gas and liquid dinitrogen trioxide in a joint way. The two products can be simultaneously produced; and the products can be directly sold or used as a finished product; and the method and equipment for producing pure nitrogen monoxide gas and liquid dinitrogen trioxide in a joint way, provided by the invention, have the advantages of low equipment cost and high efficiency.

Description

technical field [0001] The invention relates to a chemical production method and equipment. Background technique [0002] Dinitrogen trioxide is an acidic oxide, poisonous, soluble in benzene, ether, chloroform (chloroform), carbon tetrachloride (tetrachloromethane), unstable in acid and alkali, and can be decomposed into a nitrogen oxides and nitrogen dioxide. [0003] Dinitrogen trioxide is the acid anhydride of nitrous acid. Because nitrous acid is unstable, it is generally stored as sodium nitrite. It can be generated by strengthening the acid during use. Nitrous acid is widely used in chemical reactions, such as nitrosation and diazotization reactions. In the process of making nitrous acid from sodium nitrite, water and strong acid need to be added, and sodium ions will come out after the reaction, so its application has certain limitations. Using dinitrogen trioxide instead of nitrous acid for nitrosation and diazotization can be carried out in an anhydrous state, an...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C01B21/24C01B21/34
Inventor 陈林周皓
Owner ANHUI WANBEI COAL REFCO GRP LTD HANSHAN HENGTAI NONMETALLIC MATERIALS BRANCH