CN1418915A - Process for preparing rutile type chrome-tin maroon pigment - Google Patents
Process for preparing rutile type chrome-tin maroon pigment Download PDFInfo
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- CN1418915A CN1418915A CN 02156476 CN02156476A CN1418915A CN 1418915 A CN1418915 A CN 1418915A CN 02156476 CN02156476 CN 02156476 CN 02156476 A CN02156476 A CN 02156476A CN 1418915 A CN1418915 A CN 1418915A
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Abstract
The preparation method of rutile type chrome-tin mauve dyestuff is characterized by that its raw material composition includes (wt%) SnO2 or SnO2.xH2O 50-80%, MsCr2O7 or MsCrO4 6-40%, MFs or MsSiF6 0.5-10%, M (NO3)s or MsCO3 0-5%, B2O3, H3BO3 or Na2B2O7 0-15% and V2O5 or NH4O3 0-2%, in which M is alkali metal or alkali earth metal, S is 1-2, and its preparation process includes the steps of mixing materials, high-temp. calcining, pulverizing, grinding, filtering, washing with water, drying and pulverizing so as to obtain the invented dyestuff. It can be extensively used in the paint, coating, plastics and rubber industries.
Description
Technical field
The invention belongs to the pigment technology field, particularly relate to a kind of preparation method of rutile-type chromium tin red-purple pigment.
Background technology
At present, known rutile-type chromium tin violet pigment tone is a purple.The red-purple pigment that is used for fields such as coating, rubber adopts expensive cobalt compound to prepare with phosphoric acid salt or arsenate.Shortcomings such as this pigment has that toxicity is big, price is high, complex manufacturing, technology controlling and process difficulty and thermostability are relatively poor, these shortcomings restrictions or limited the widespread use of this serial pigment.Known red-purple pigment coloring characteristic extreme difference is difficult to use in fields such as coating, plastics, and the ceramic colour glaze that can only be used for 1000-1200 ℃ is painted.
Summary of the invention
The present invention provides a kind of preparation method of rutile-type chromium tin red-purple pigment for solving the problem that known technology exists.
Purpose of the present invention provides a kind of preparation method of cassiterite pigment-chromium tin red-purple pigment of rutile structure, and this pigment presents bright and bright-coloured purplish red tone, has good tinting strength, opacifying power and oil number simultaneously.
What the present invention narrated is raw material and prescription, preparation technology and the production method of rutile-type chromium tin red-purple pigment.This pigment has lucid and lively special purplish red tone, and tinting strength and opacifying power are good.
The pigment of the present invention's preparation can be represented with following molecular formula: SnO
2XCrO
4(0.003≤x≤0.015) increases with the x value, and the color of pigment changes to deep blue purple by lilac red, red-purple, amaranth.
The pigment that the present invention narrated is finished with simple pigment production technology.The above-mentioned raw materials mix grinding is evenly calcined in kiln the back, and calcining temperature 550-750 ℃, calcination time is 0.5-6 hour.
Chromic salt that the present invention is used or the alkali metal compound in the fluorochemical are better than alkaline earth metal compound.
Calcining synthesis technique of the present invention is preferably in oxidation or the weakly reducing atmosphere and finishes.After the material high-temperature calcination behind the uniform mixing, through pulverize, levigate, filter, washing, oven dry, get product after pulverizing.
The present invention adopts following technical scheme:
The preparation method of rutile-type chromium tin red-purple pigment is equipped with raw material by following weight percent:
SnO
2Or SnO
2XH
2O 50-80%
M
sCr
2O
7Or M
sCrO
46-40%
MFs or M
sSiF
60.5-10%
M (NO3)
sOr M
sCO
30-5%
B
2O
3, H
3BO
3Or Na
2B
2O
70-15%
V
2O
5Or NH
4VO
30-2%
Wherein, M is basic metal or alkaline-earth metal, and s is 1-2.
Carry out high-temperature calcination after the batch mixes, then through pulverize, levigate, filter, washing, oven dry, pulverize and make rutile-type chromium tin red-purple pigment.
The present invention can also adopt following technical measures:
Described red-purple method for preparing pigment is characterized in: chromic salt or dichromate are the compound of potassium or sodium.
Described red-purple method for preparing pigment is characterized in: fluorochemical is lithium fluoride or Sodium Fluoride.
Described red-purple method for preparing pigment is characterized in: chromic salt is 12-30% with addition of amount, and dichromate is 10-25% with addition of amount.
Described red-purple method for preparing pigment is characterized in: raw material and batching are behind uniform mixing, in 550-750 ℃ of calcining 0.5-6 hour.
Advantage that the present invention has and positively effect:
The pigment that the present invention makes presents bright and bright-coloured purplish red tone, has good tinting strength, opacifying power and oil number simultaneously.This preparation method's production technique is simple, technology controlling and process easy and better heat stability, and production cost is low, and gained pigment can be widely used in fields such as paint, coating, plastics, rubber.
Embodiment
For further understanding content of the present invention, characteristics and effect, it is as follows to enumerate following example in detail now:
Embodiment 1
With 72 gram tindioxide, 21 grammes per square metre Sodium chromates, 3.5 gram lithium fluoride, 2.5 gram boric acid, the abundant mixing of 1.0 gram Vanadium Pentoxide in FLAKESs, mixture was calcined in 610-660 ℃ retort furnace about 2 hours, can make 74 gram amaranth pigment.
Embodiment 2
According to embodiment 1, according to the following ratio raw material that is mixed: metastannic acid 81 grams, Sodium Tetraborate 2.5 grams, potassiumchromate 13 gram ammonium meta-vanadates 0.5 gram Sodium Fluoride 3.0 grams can make 65 gram red-purple pigment.
Claims (5)
1. the preparation method of rutile-type chromium tin red-purple pigment, raw material is mixed in proportion the back high-temperature calcination, through pulverize, levigate, filter, washing, oven dry, pulverize and make product, it is characterized in that raw material is equipped with by following weight percent, prepare rutile-type chromium tin red-purple pigment:
SnO
2Or SnO
2XH
2O 50-80%
M
sCr
2O
7Or M
sCrO
46-40%
MFs or M
sSiF
60.5-10%
M (NO3)
sOr M
sCO
30-5%
B
2O3, H
3BO
3Or Na
2B
2O
70-15%
V
2O
5Or NH
4VO
30-2%
Wherein, M is basic metal or alkaline-earth metal, and s is 1-2.
2. according to the described preparation method of claim 1, it is characterized in that: chromic salt or dichromate are the compound of potassium or sodium.
3. according to the described preparation method of claim 1, it is characterized in that: fluorochemical is lithium fluoride or Sodium Fluoride.
4. according to the described preparation method of claim 1, it is characterized in that: chromic salt is 12-30% with addition of amount, and dichromate is 10-25% with addition of amount.
5. according to the described preparation method of claim 1, it is characterized in that: raw material and batching are behind uniform mixing, in 550-750 ℃ of calcining 0.5-6 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156476 CN1224646C (en) | 2002-12-18 | 2002-12-18 | Process for preparing rutile type chrome-tin maroon pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156476 CN1224646C (en) | 2002-12-18 | 2002-12-18 | Process for preparing rutile type chrome-tin maroon pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1418915A true CN1418915A (en) | 2003-05-21 |
| CN1224646C CN1224646C (en) | 2005-10-26 |
Family
ID=4752753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02156476 Expired - Fee Related CN1224646C (en) | 2002-12-18 | 2002-12-18 | Process for preparing rutile type chrome-tin maroon pigment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1224646C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515852A (en) * | 2011-12-30 | 2012-06-27 | 江苏拜富科技有限公司 | High-temperature preparation method of chrome-tin purple pigment |
| CN102795890A (en) * | 2012-07-06 | 2012-11-28 | 佛山市南海万兴材料科技有限公司 | Chrome-carried tin oxide violet ceramic pigment and preparation method thereof |
-
2002
- 2002-12-18 CN CN 02156476 patent/CN1224646C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515852A (en) * | 2011-12-30 | 2012-06-27 | 江苏拜富科技有限公司 | High-temperature preparation method of chrome-tin purple pigment |
| CN102795890A (en) * | 2012-07-06 | 2012-11-28 | 佛山市南海万兴材料科技有限公司 | Chrome-carried tin oxide violet ceramic pigment and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1224646C (en) | 2005-10-26 |
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