CN105016369A - Production method for pasty calcium carbonate for papermaking - Google Patents
Production method for pasty calcium carbonate for papermaking Download PDFInfo
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- CN105016369A CN105016369A CN201410838382.5A CN201410838382A CN105016369A CN 105016369 A CN105016369 A CN 105016369A CN 201410838382 A CN201410838382 A CN 201410838382A CN 105016369 A CN105016369 A CN 105016369A
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- calcium carbonate
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- calcium hydroxide
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Abstract
The invention relates to the field of manufacture of calcium carbonate, particularly a production method for pasty calcium carbonate for papermaking. The production method is characterized by comprising the following steps: S1, calcining limestone at 1000 DEG C; S2, carrying out continuous digestion on obtained calcium hydroxide and water; S3, obtaining the calcium hydroxide with the concentration of 10-17 Baume; S4, removing impurities from the obtained calcium hydroxide; S5, aging the calcium hydroxide for 3-8 hours; S6, putting the calcium hydroxide in a carbonizing tower for carbonizing operation; S7, obtaining calcium carbonate with the pH of 7; S8, super-carbonizing the calcium carbonate; S9, further removing impurities from the obtained slurry to obtain fine calcium carbonate slurry; and S10, putting the obtained fine calcium carbonate slurry in a full-automatic centrifugal dehydrator to obtain the pasty calcium carbonate meeting the requirements. The pasty calcium carbonate obtained by the production method can be directly used for papermaking, and the step of drying the calcium carbonate in the conventional papermaking operation is avoided, so that the environmental pollution is reduced while the energy sources required by production are saved.
Description
Technical field
The present invention relates to calcium carbonate and manufacture field, specifically a kind of production method of paper grade (stock) paste calcium carbonate.
Background technology
Paper-making sizing changes neutral sizing into from acidity, and required calcium carbonate product is all be coated with after adding water move to 65-70% solid content with dry powder.So, the easy particle agglomeration of calcium carbonate in drying course, and carry out drying the energy that needs at substantial and to environment.
Summary of the invention
Do not need the manufacture method of the paper grade (stock) paste calcium carbonate of drying after the object of the present invention is to provide a kind of coating, calcium carbonate applications can be reached by this object of energy-saving and emission-reduction in paper-making industry.
In order to reach above-mentioned target, the present invention is achieved in that
A production method for paper grade (stock) paste calcium carbonate, comprises the steps:
Step 1, by CaCO
3the Wingdale of content>=99%, through 1000 DEG C of calcinings, (calcination time 42-45 hour)
Step 2, the calcium hydroxide of gained and water after calcining in step 1 to be digested continuously with the ratio of 1:3 ~ 8,
Step 3, the concentration of step 2 gained calcium hydroxide is controlled at 10 ~ 17 ° of B é,
Step 4, step 3 gained calcium hydroxide is removed impurity through rotary filter press operation with vibratory screening apparatus,
Step 5, by step 4 gained calcium hydroxide ageing 3 ~ 8 hours,
Step 6, step 5 gained calcium hydroxide inserted the carbonization operation that carbonating tower carries out 2 ~ 3 hours, control CO
2concentration>=30%, slurry temperature controls at 30-50 DEG C, adds Sodium hexametaphosphate 99 0.03% simultaneously;
Step 7, the potential of hydrogen of step 6 gained calcium carbonate is controlled at pH=7,
Step 8, step 7 gained calcium carbonate is crossed carbonization 15 minutes,
Step 8 gained calcium carbonate serosity is inserted wet cyclone and vibratory screening apparatus by step 9, removes impurity further, obtains calcium carbonate refining,
Step 10, step 9 gained calcium carbonate refining is inserted automatic centrifugal water extracter, by controlling into the slurry time, dewatering time and electrode rotating speed are until obtain satisfactory paste calcium carbonate.
The production method of this calcium carbonate is by the concentration of carbonization process adjustment slurry, temperature and carbonization time, use Sodium hexametaphosphate 99 simultaneously, make the not easily conglomeration of paste calcium carbonate, easy dispersion, so, through centrifuge dehydration, product is directly used in papermaking operation, so, eliminate in traditional papermaking operation and the step of drying is needed to calcium carbonate, thus saved and produce the energy and decrease pollution to environment.
Embodiment
The present invention is further illustrated below by way of specific embodiment.
A production method for paper grade (stock) paste calcium carbonate, comprises the steps:
Step 1, by CaCO
3the Wingdale of content>=99%, through 1000 DEG C of calcinings, (42-45 hour)
Step 2, the calcium hydroxide of gained and water after calcining in step 1 to be digested continuously with the ratio of 1:3 ~ 8,
Step 3, the concentration of step 2 gained calcium hydroxide is controlled at 10 ~ 17 ° of B é,
Step 4, step 3 gained calcium hydroxide is removed impurity through rotary filter press operation with vibratory screening apparatus,
Step 5, by step 4 gained calcium hydroxide ageing 3 ~ 8 hours,
Step 6, step 5 gained calcium hydroxide inserted the carbonization operation that carbonating tower carries out 2 ~ 3 hours, control CO
2concentration>=30%(preferably 30-40%), slurry temperature controls at 30-50 DEG C, adds Sodium hexametaphosphate 99 0.03% simultaneously;
Step 7, the potential of hydrogen of step 6 gained calcium carbonate is controlled at pH=7,
Step 8, step 7 gained calcium carbonate is crossed carbonization 15 minutes,
Step 8 gained slurries are inserted wet cyclone and vibratory screening apparatus by step 9, remove impurity further, obtain calcium carbonate refining,
Step 10, step 9 gained calcium refining is inserted automatic centrifugal water extracter, by controlling into the slurry time, dewatering time and electrode rotating speed are until obtain satisfactory paste calcium carbonate.
Through above-mentioned technical process, solid content >=40% of gained paste calcium carbonate, pH=9-10.5,325 screen residue≤0.5%, whiteness >=92, laser diffraction particle size analyzer d90:2-3um, meets the requirement of paper-making industry for filler calcium carbonate completely, and the calcium carbonate using present method to obtain eliminates in traditional papermaking operation needs the step of drying to calcium carbonate, thus save and produce the energy and decrease pollution to environment.
Claims (2)
1. a production method for paper grade (stock) paste calcium carbonate, is characterized in that: comprise the steps:
Step 1, by CaCO
3the Wingdale of content>=99%, through the calcining of 1000 DEG C, calcination time is 42 ~ 45 hours;
Step 2, the calcium hydroxide of gained and water after calcining in step 1 to be digested continuously with the ratio of 1:3 ~ 8,
Step 3, the concentration of step 2 gained calcium hydroxide is controlled at 10 ~ 17 ° of B é,
Step 4, step 3 gained calcium hydroxide is removed impurity through rotary filter press operation with vibratory screening apparatus,
Step 5, by step 4 gained calcium hydroxide ageing 3 ~ 8 hours,
Step 6, step 5 gained calcium hydroxide inserted the carbonization operation that carbonating tower carries out 2 ~ 3 hours, control CO
2concentration>=30%(volume ratio), slurry temperature controls at 30-50 DEG C, adds Sodium hexametaphosphate 99 0.03% simultaneously;
Step 7, the potential of hydrogen of step 6 gained calcium carbonate is controlled at PH=7,
Step 8, step 7 gained calcium carbonate is crossed carbonization 15 minutes,
Step 8 gained is slightly starched and is inserted wet cyclone and vibratory screening apparatus by step 9, removes impurity further, obtains calcium carbonate seminal fluid,
Step 10, step 9 gained slurries are inserted automatic centrifugal water extracter, by controlling into the slurry time, dewatering time and electrode rotating speed are until obtain satisfactory paste calcium carbonate.
2. the production method of paper grade (stock) paste calcium carbonate according to claim 1, is characterized in that: the slurry time of entering in step 10 is 240 seconds ~ 280 seconds, and dewatering time is 550 seconds ~ 600 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838382.5A CN105016369A (en) | 2014-12-30 | 2014-12-30 | Production method for pasty calcium carbonate for papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838382.5A CN105016369A (en) | 2014-12-30 | 2014-12-30 | Production method for pasty calcium carbonate for papermaking |
Publications (1)
| Publication Number | Publication Date |
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| CN105016369A true CN105016369A (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410838382.5A Pending CN105016369A (en) | 2014-12-30 | 2014-12-30 | Production method for pasty calcium carbonate for papermaking |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459053A (en) * | 2017-08-10 | 2017-12-12 | 青阳县永诚钙业有限责任公司 | A kind of production method of paste calcium carbonate |
| CN107574707A (en) * | 2017-09-20 | 2018-01-12 | 林龙 | A kind of preparation method of the special powdered whiting of papermaking |
| CN107642004A (en) * | 2017-11-02 | 2018-01-30 | 洪飞飞 | A kind of preparation method of the antibacterial foam wallpaper with durable antibiotic effect |
| CN107674487A (en) * | 2017-09-20 | 2018-02-09 | 林龙 | A kind of preparation method of the special powdered whiting of coating |
| CN107881840A (en) * | 2017-11-02 | 2018-04-06 | 洪飞飞 | A kind of preparation method of the antibacterial foam wallpaper with lasting health-care efficacy |
| CN109292806A (en) * | 2018-11-09 | 2019-02-01 | 长沙万荣粉体设备科技有限公司 | A kind of calcium carbonate slurry process and treat system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724379A (en) * | 2005-06-13 | 2006-01-25 | 建德市天石碳酸钙有限责任公司 | Process for producing toothpaste grade light-weight calcium carbonate |
| CN1884085A (en) * | 2006-06-29 | 2006-12-27 | 上海东升新材料有限公司 | Process for preparing superfine light calcium carbonate |
| CN102432054A (en) * | 2011-09-28 | 2012-05-02 | 建德市云峰碳酸钙有限公司 | Method for producing light calcium carbonate slurry and light calcium carbonate paste |
| CN103897434A (en) * | 2014-04-19 | 2014-07-02 | 芮城新泰纳米材料有限公司 | Method for preparing special nano calcium carbonate for plastic master batch |
-
2014
- 2014-12-30 CN CN201410838382.5A patent/CN105016369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724379A (en) * | 2005-06-13 | 2006-01-25 | 建德市天石碳酸钙有限责任公司 | Process for producing toothpaste grade light-weight calcium carbonate |
| CN1884085A (en) * | 2006-06-29 | 2006-12-27 | 上海东升新材料有限公司 | Process for preparing superfine light calcium carbonate |
| CN102432054A (en) * | 2011-09-28 | 2012-05-02 | 建德市云峰碳酸钙有限公司 | Method for producing light calcium carbonate slurry and light calcium carbonate paste |
| CN103897434A (en) * | 2014-04-19 | 2014-07-02 | 芮城新泰纳米材料有限公司 | Method for preparing special nano calcium carbonate for plastic master batch |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459053A (en) * | 2017-08-10 | 2017-12-12 | 青阳县永诚钙业有限责任公司 | A kind of production method of paste calcium carbonate |
| CN107574707A (en) * | 2017-09-20 | 2018-01-12 | 林龙 | A kind of preparation method of the special powdered whiting of papermaking |
| CN107674487A (en) * | 2017-09-20 | 2018-02-09 | 林龙 | A kind of preparation method of the special powdered whiting of coating |
| CN107642004A (en) * | 2017-11-02 | 2018-01-30 | 洪飞飞 | A kind of preparation method of the antibacterial foam wallpaper with durable antibiotic effect |
| CN107881840A (en) * | 2017-11-02 | 2018-04-06 | 洪飞飞 | A kind of preparation method of the antibacterial foam wallpaper with lasting health-care efficacy |
| CN109292806A (en) * | 2018-11-09 | 2019-02-01 | 长沙万荣粉体设备科技有限公司 | A kind of calcium carbonate slurry process and treat system and method |
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Application publication date: 20151104 |