CN110184037A - A kind of mercury-free catalyzes and synthesizes the higher boiling aqueous solution shifting thermit powder of vinyl chloride - Google Patents

A kind of mercury-free catalyzes and synthesizes the higher boiling aqueous solution shifting thermit powder of vinyl chloride Download PDF

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Publication number
CN110184037A
CN110184037A CN201910418545.7A CN201910418545A CN110184037A CN 110184037 A CN110184037 A CN 110184037A CN 201910418545 A CN201910418545 A CN 201910418545A CN 110184037 A CN110184037 A CN 110184037A
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China
Prior art keywords
aqueous solution
higher boiling
boiling aqueous
free
mercury
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CN201910418545.7A
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Chinese (zh)
Inventor
薛卫东
赵驰峰
席引尚
张军锋
张力
谢姣姣
王飞
梁寅祥
高万升
刘海峰
张庆
王炜
邱元金
孟宪忠
黄保社
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SHAANXI JINTAI CHLOR-AKALI CHEMICAL Co Ltd
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SHAANXI JINTAI CHLOR-AKALI CHEMICAL Co Ltd
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Priority to CN201910418545.7A priority Critical patent/CN110184037A/en
Publication of CN110184037A publication Critical patent/CN110184037A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/07Preparation of halogenated hydrocarbons by addition of hydrogen halides
    • C07C17/08Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08Materials not undergoing a change of physical state when used
    • C09K5/10Liquid materials

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Present invention design, which completes a kind of mercury-free and catalyzes and synthesizes the higher boiling aqueous solution of vinyl chloride, moves thermit powder, and solute includes individual or mixed inorganic salts, organic salt and alcohols, and solubility is big in water, and the aqueous solution elevation of boiling point is obvious;According to different requirements, using different formulas, some higher boiling aqueous solutions can never degenerate in 250 DEG C for having pressure;To carbon steel, corrosion-free or corrosion is unobvious at 250 DEG C;Thermal coefficient is big;It does not burn, no risk of explosion;It is nontoxic, pollution-free;It is cheap, under normal pressure or lower pressure, the boiling point of higher boiling aqueous solution can reach higher temperature, it ensure that the reaction temperature requirement of catalyst without mercury, it is cheap using the equal price of raw material, and technical equipment is simple, and the atmospheric hot-water used originally need to be only changed to higher boiling aqueous solution and move thermit powder.

Description

A kind of mercury-free catalyzes and synthesizes the higher boiling aqueous solution shifting thermit powder of vinyl chloride
Technical field
Vinyl chloride field is catalyzed and synthesized the present invention relates to mercury-free more particularly to a kind of mercury-free catalyzes and synthesizes the high boiling of vinyl chloride It selects aqueous solution and moves thermit powder.
Background technique
During chemical reaction process, many chemical reactions are exothermic reaction, are with acetylene, hydrogen chloride synthesis vinyl chloride Example commonly uses atmospheric hot-water as reactor cycles heat exchanger, does shifting thermit powder using water and take away the heat generated in synthesis reactor, Atmospheric hot-water temperature can only be within 100 DEG C.When carrying out catalyzing acetylene hydrochlorination using novel mercury-free catalyst, by It is greater than 100 DEG C mostly in the active temperature of catalyst without mercury, it is higher that the atmospheric hot-water that tradition uses is not able to satisfy catalyst without mercury High temperature heat transfer requirements under active temperature.
Currently, to meet the high temperature heat transfer requirements at a temperature of catalyst without mercury greater activity, the heat transfer industrially often selected Medium mainly has pressurized hot water, steam, heptane and conduction oil etc., atmospheric hot-water is substituted according to conduction oil and steam, due to two The thermal coefficient of person is low, and heat transfer efficiency is poor, cannot meet requirement very well, except conduction oil there are also it is expensive the problems such as; Atmospheric hot-water is substituted according to heptane, heptane belongs to flammable and explosive substance, increases the risk of system, just slightly into air It will lead to explosion;Atmospheric hot-water is substituted according to pressurized hot water, although temperature can achieve requirement, to converter etc. Equipment requirement is high pressure resistant, the factory that on-hand quantity is numerous, in large scale, due to converter design pressure be mostly normal pressure Or low pressure vessel, Yao Caiyong pressurized hot water or heptane, it is necessary to converter is replaced, thus equipment investment is excessively high;It is therefore desirable to Higher boiling aqueous solution shifting thermit powder is used for mercury-free and catalyzes and synthesizes vinyl chloride shifting heat by exploitation, uses the higher work of catalyst without mercury to meet The requirement of warm-natured degree, achievees the purpose that substitute that atmospheric hot-water is easy, investment expense is cheap, this especially sets existing factory having On the basis of standby, it is of great significance with low investment simple replacement using catalyst without mercury.
Summary of the invention
It catalyzes and synthesizes the higher boiling aqueous solution of vinyl chloride in consideration of it, present invention design completes a kind of mercury-free and moves thermit powder, it will Higher boiling aqueous solution catalyzes and synthesizes vinyl chloride for mercury-free and moves heat, is wanted with meeting using catalyst without mercury greater activity temperature It asks, achievees the purpose that substitution atmospheric hot-water is easy, investment expense is cheap.
The technical scheme is that realized by following measures:
A kind of mercury-free catalyzes and synthesizes the higher boiling aqueous solution shifting thermit powder of vinyl chloride, and the higher boiling aqueous solution moves the molten of thermit powder Matter includes individual or mixed inorganic salts, organic salt and alcohols, and the solubility of the higher boiling aqueous solution solute is big, boiling Point increases obvious;Higher boiling aqueous solution never degenerates in 250 DEG C for having pressure;To carbon steel at 250 DEG C it is corrosion-free or corrosion not Obviously;Thermal coefficient is big;It does not burn, no risk of explosion;It is nontoxic, pollution-free;It is cheap.
Further, the higher boiling aqueous solution move the solute of thermit powder include chloride, carbonate, sulfate, phosphate, The alkaline metal salt of carboxylate, gluconate etc.;The alkaline-earth metal salt of chloride, gluconate, carboxylate etc.;Grape The transition metal salt of sugar lime etc. and alcohols including ethylene glycol, propylene glycol, butanediol etc..
Further, the higher boiling aqueous solution moves the open use condition of thermit powder are as follows: the solution temperature of solute in water It is 40~90 DEG C, relative to 400~2000g/L of solute solubility of water, the boiling point of higher boiling aqueous solution is 110~150 DEG C.
The beneficial effects of the present invention are: to complete a kind of higher boiling that mercury-free catalyzes and synthesizes vinyl chloride water-soluble for present invention design Liquid moves thermit powder, and under normal pressure or lower pressure, the boiling point of higher boiling aqueous solution can reach higher temperature, ensure that mercury-free is catalyzed The requirement of the greater activity temperature of agent, it is cheap using the equal price of raw material, and technical equipment is simple, higher boiling solution is to carbon steel Equipment is non-corrosive, only the atmospheric hot-water that used originally need to be changed to higher boiling aqueous solution.
Specific embodiment
The present invention is described in detail below with reference to embodiment.
A kind of mercury-free catalyzes and synthesizes the higher boiling aqueous solution shifting thermit powder of vinyl chloride, and the higher boiling aqueous solution moves thermit powder and includes Individual or mixed inorganic salts, organic salt and alcohols, the molten solute solution degree of the higher boiling aqueous solution is big, the elevation of boiling point Obviously;According to different requirements, using different formulas, some higher boiling aqueous solutions can be in 250 DEG C for having pressure not It is rotten;To carbon steel, corrosion-free or corrosion is unobvious at 250 DEG C;Thermal coefficient is big;It does not burn, no risk of explosion;It is nontoxic, without dirt Dye;It is cheap.
Specifically, the higher boiling aqueous solution move thermit powder include chloride, carbonate, sulfate, phosphate, carboxylate, The alkaline metal salt of gluconate etc.;The alkaline-earth metal salt of chloride, gluconate, carboxylate etc.;Gluconate Deng transition metal salt and alcohols including ethylene glycol, propylene glycol, butanediol etc..
Specifically, the higher boiling aqueous solution moves the open use condition of thermit powder are as follows: the solution temperature of solute in water is 40~90 DEG C, relative to 400~2000g/L of solute solubility of water, the boiling point of higher boiling aqueous solution is 110~150 DEG C.
Embodiment 1
According to the ratio of 100ml pure water, 40g sodium acetate in solution make-up tank, aqueous solution, normal pressure are configured at 40 DEG C The boiling point of lower aqueous solution can reach 110 DEG C.Aqueous solution is pumped into circulating slot through liquid relief, is pumped into heater through circulation and is followed Ring heating, temperature, which reaches to be sent into after requirement, to be taken away mercury-free in converter and catalyzes and synthesizes the heat released in vinyl chloride reaction process, Achieve the purpose that move heat, carry the aqueous solution of heat by external waste heat using heat exchanger heat exchange after, return to circulating slot, circulation benefit With.
Embodiment 2
According to the ratio of 100ml pure water, 80g sodium formate, 30g sodium acetate, 15g tertiary sodium phosphate in solution make-up tank, Mixed aqueous solution is configured at 70 DEG C, the boiling point of mixed aqueous solution can reach 123 DEG C under normal pressure.Mixed aqueous solution is pumped through liquid relief Enter in circulating slot, is pumped into heater through circulation and carries out circulating-heating, temperature, which reaches to be sent into converter after requirement, takes away mercury-free The heat released in vinyl chloride reaction process is catalyzed and synthesized, achievees the purpose that move heat, carries the mixed aqueous solution of heat outside After the heat exchange of portion's waste heat utilization heat exchanger, circulating slot is returned, is recycled.
Embodiment 3
According to the ratio of 100ml pure water, 180g calcium chloride, 5g butanediol, 15g sodium formate in solution make-up tank, 90 Mixed aqueous solution is prepared at DEG C, the temperature of mixed aqueous solution can reach 150 DEG C under normal pressure, and mixing salt solution is pumped into through liquid relief and follows In annular groove, heater is pumped into through circulation and carries out circulating-heating, temperature, which reaches to be sent into converter after requirement, takes away mercury-free catalysis The heat released in synthesis vinyl chloride thereof reaction process achievees the purpose that shifting heat, and the mixed aqueous solution for carrying heat passes through more than outside After the heat exchange of heat utilization heat exchanger, circulating slot is returned, is recycled.
Higher boiling aqueous solution is used for mercury-free and catalyzes and synthesizes vinyl chloride shifting heat, to meet catalyst without mercury greater activity temperature Requirement, technological operation is simple, and technical equipment is cheap, in the actual production process, not will increase excessive capital investment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features; And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (3)

1. the higher boiling aqueous solution that a kind of mercury-free catalyzes and synthesizes vinyl chloride moves thermit powder, it is characterised in that: the higher boiling aqueous solution The solute for moving thermit powder includes individual or mixed inorganic salts, organic salt and alcohols, and the higher boiling aqueous solution moves thermit powder Solute solubility is big in water, the aqueous solution elevation of boiling point is obvious;Higher boiling aqueous solution can be constant in 250 DEG C for having pressure Matter;To carbon steel, corrosion-free or corrosion is unobvious at 250 DEG C;Thermal coefficient is big;It does not burn, no risk of explosion;It is nontoxic, without dirt Dye;It is cheap.
2. the higher boiling aqueous solution that a kind of mercury-free according to claim 1 catalyzes and synthesizes vinyl chloride moves thermit powder, feature exists In: the solute that the higher boiling aqueous solution moves thermit powder includes chloride, carbonate, sulfate, phosphate, carboxylate, glucose The alkaline metal salt of hydrochlorate etc.;The alkaline-earth metal salt of chloride, gluconate, carboxylate etc.;The mistake of gluconate etc. Cross metallic salt and the alcohols including ethylene glycol, propylene glycol, butanediol etc..
3. the higher boiling aqueous solution that a kind of mercury-free according to claim 1 catalyzes and synthesizes vinyl chloride moves thermit powder, feature exists In: the higher boiling aqueous solution moves the open use condition of thermit powder are as follows: the solution temperature of solute in water is 40~90 DEG C, relatively In 400~2000g/L of solute solubility of water, the boiling point of higher boiling aqueous solution is 110~150 DEG C.
CN201910418545.7A 2019-05-20 2019-05-20 A kind of mercury-free catalyzes and synthesizes the higher boiling aqueous solution shifting thermit powder of vinyl chloride Pending CN110184037A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040011990A1 (en) * 2002-07-19 2004-01-22 Tetra Technologies, Inc. Thermally insulating fluid
CN101805593A (en) * 2010-01-25 2010-08-18 李英勇 Superconducting fluid special for vacuum superconducting heating and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040011990A1 (en) * 2002-07-19 2004-01-22 Tetra Technologies, Inc. Thermally insulating fluid
CN101805593A (en) * 2010-01-25 2010-08-18 李英勇 Superconducting fluid special for vacuum superconducting heating and preparation method thereof

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Application publication date: 20190830