CN1097399A - The wastes treating process that Strontium carbonate powder is produced - Google Patents
The wastes treating process that Strontium carbonate powder is produced Download PDFInfo
- Publication number
- CN1097399A CN1097399A CN94111618A CN94111618A CN1097399A CN 1097399 A CN1097399 A CN 1097399A CN 94111618 A CN94111618 A CN 94111618A CN 94111618 A CN94111618 A CN 94111618A CN 1097399 A CN1097399 A CN 1097399A
- Authority
- CN
- China
- Prior art keywords
- strontium carbonate
- carbonate powder
- strontium
- produced
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Abstract
The present invention relates to carbon reduction method is produced harmful H that Strontium carbonate powder is discharged
2The technology that S gas is handled.It is that the strontium sulfide that will obtain after the celestite powder reduction with carbon is dissolved in water, uses kiln gas CO again
2Carry out carburizing reagent, obtain Strontium carbonate powder.Its unique distinction is to absorb the H that produces in the carburizing reagent with milk of lime
2S and CO
2, the pollution problem that has solved hydrogen sulfide, production cost is low, and the quality product height is the another new way of producing Strontium carbonate powder with lazurite.
Description
The invention belongs to reduction method and produce the three wastes treatment process of Strontium carbonate powder.Be to adopt the celestite powder reducing roasting to produce Strontium carbonate powder, with discharge tail gas H
2S and CO
2Absorb with milk of lime, to solve problem of environmental pollution.
Produce the common reduction with carbon method of Strontium carbonate powder with lazurite, but this method often produces contaminate environment, infringement HUMAN HEALTH with evil gas.With the most approaching application number of the present invention be that 91107251.9 patent application must consume important chemical material bicarbonate of ammonia and soda ash, production cost is higher.
Originally the purpose of delivering is to solve the tail gas pollution problem of producing Strontium carbonate powder with the carbonic acid reduction method, reduces production costs simultaneously.
The present invention adopts the harmful tail gas H that absorbs the synthesizing strontium carbonate discharging with milk of lime
2S and CO
2, set forth production technique and reaction principle below.
Mix with anthracite (or coke) again after earlier lazurite being broken into fritter, wear into fine powder, send into stoving oven, in 800～1400 ℃ of reducing roastings.
Water-fast Strontium Sulphate in the lazurite is reduced to strontium sulfide soluble in water, and roasting powder metering back is added in the rotary spherical digester by the charge cavity of rotary spherical digester, is metered into the dipping wash water simultaneously, rotates rotary spherical digester feeding open steam and is heated to 0.5 kilograms per centimeter
2(gauge pressure), the dipping soaking time is about 0.5～1.0 hour, and stall is moving then, and release is left standstill heavy clear.
Immersion liquid after sinking is clearly entered the immersion liquid storage tank, remove by vacuum suction filter and soak slag, immersion liquid is stand-by after press filtration.
In addition, Wingdale and coke are mixed in proportion, add shaft kiln calcination, the lime that burns till draws off at the bottom of by kiln, is used to prepare milk of lime, and kiln gas is removed kiln dirt and SO through washing tower
2Behind the gas,, supply with synthesizing strontium carbonate and use again through the air water separator dehydration.
Purify kiln gas and spray resorber, make the CO in the kiln gas by strontium liquid
2With strontium liquid synthesizing strontium carbonate.
The H that produces in the building-up process
2S and remaining CO
2Spray resorber by milk of lime again, make H
2S, CO
2Purify the back emptying.
When dropping to send into below 10, the pH value of milk of lime absorbs the slag settling pool, heavy clear back clear liquid discharging, and wet slag is discarded.
The dehydration of strontium slurry, check behind drying, the abrasive dust, packing.
Characteristics of the present invention are to absorb the tail gas H that produces in the Strontium carbonate powder production with milk of lime
2S and CO
2, without other industrial chemicals, reduced cost significantly, free from environmental pollution, and the product strontium carbonate quality is good, can with the matching in excellence or beauty of strontianite production.
In sum, the wastes treating process that Strontium carbonate powder of the present invention is produced has been avoided environmental pollution, has saved resource, has obtained high-quality product, is another the new way of producing Strontium carbonate powder with lazurite.
Claims (1)
1, a kind of reduction with carbon method is produced the tail gas treatment process of Strontium carbonate powder, it is characterized in that absorbing the obnoxious flavour H that discharges in the strontium carbonate producing process with milk of lime
2S and CO
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111618A CN1097399A (en) | 1994-01-24 | 1994-01-24 | The wastes treating process that Strontium carbonate powder is produced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111618A CN1097399A (en) | 1994-01-24 | 1994-01-24 | The wastes treating process that Strontium carbonate powder is produced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1097399A true CN1097399A (en) | 1995-01-18 |
Family
ID=5035464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94111618A Pending CN1097399A (en) | 1994-01-24 | 1994-01-24 | The wastes treating process that Strontium carbonate powder is produced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1097399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7198390B2 (en) | 2003-08-18 | 2007-04-03 | Hitachi, Ltd. | Reflector, projective display and projector |
-
1994
- 1994-01-24 CN CN94111618A patent/CN1097399A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7198390B2 (en) | 2003-08-18 | 2007-04-03 | Hitachi, Ltd. | Reflector, projective display and projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |