JPH0369067B2 - - Google Patents
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- Publication number
- JPH0369067B2 JPH0369067B2 JP1021684A JP1021684A JPH0369067B2 JP H0369067 B2 JPH0369067 B2 JP H0369067B2 JP 1021684 A JP1021684 A JP 1021684A JP 1021684 A JP1021684 A JP 1021684A JP H0369067 B2 JPH0369067 B2 JP H0369067B2
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- Prior art keywords
- concentration
- slurry
- caso
- caco
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
【発明の詳細な説明】
〔本発明の技術分野〕
本発明は、湿式石灰法排煙脱硫装置における吸
収液スラリーなどのCaCO3並びにCaSO3もしく
はそのいずれかを含有するスラリー中のCaCO3
並びにCaSO3濃度を連続的に測定する方法に関す
る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for reducing CaCO 3 in a slurry containing CaCO 3 and/or CaSO 3 , such as an absorbent slurry in a wet lime method flue gas desulfurization equipment .
The present invention also relates to a method for continuously measuring CaSO 3 concentration.
〔従来のCaCO3濃度・CaSO3濃度連続測定手段〕
従来のCaCO3並びにCaSO3濃度を連続的に測
定する手段としては、CaCO3及びCaSO3もしく
はいずれかを含有するスラリーを外気と遮断した
撹拌式連続反応器内で塩酸もしくは硫酸と反応さ
せ、下記反応によつてCaCO3並びにCaSO3を
各々CO2及びSO2となし、
（HCl） CaCO3＋2HCl
→CaCl2＋H2O＋CO2↑ …(1)
CaSO3＋2HCl→CaCl2＋H2O＋SO2↑
…(2)
（H2SO4） CaCO3＋H2SO4
→CaSO4＋H2O＋CO2↑ …(3)
CaSO3＋H2SO4→CaSO4＋H2O＋SO2↑
…(4)
これを反応液中に空気を吹き込み抜気し、抜気
ガス中のCO2並びにSO2量を測定してスラリー中
に含まれるCaCO3並びにCaSO3濃度を演算によ
つて算出するしくみとなつている。[Conventional means for continuously measuring CaCO 3 concentration and CaSO 3 concentration] Conventional means for continuously measuring CaCO 3 and CaSO 3 concentrations include stirring a slurry containing CaCO 3 and/or CaSO 3 while shielding it from the outside air. React with hydrochloric acid or sulfuric acid in a continuous reactor to convert CaCO 3 and CaSO 3 into CO 2 and SO 2 , respectively, by the following reaction: (HCl) CaCO 3 +2HCl →CaCl 2 +H 2 O + CO 2 ↑ …(1 ) CaSO 3 ＋2HCl→CaCl 2 ＋H 2 O＋SO 2 ↑
…(2) (H 2 SO 4 ) CaCO 3 +H 2 SO 4 →CaSO 4 +H 2 O＋CO 2 ↑ …(3) CaSO 3 +H 2 SO 4 →CaSO 4 +H 2 O＋SO 2 ↑
...(4) The reaction solution is vented by blowing air into it, the amounts of CO 2 and SO 2 in the vented gas are measured, and the concentrations of CaCO 3 and CaSO 3 contained in the slurry are calculated by calculation. It has become a system.
この従来の測定手段を第１図に基づいて説明す
ると、第１図において、CaCO3及びCaSO3を含
有する試料スラリーＡは定量ポンプ１で採取さ
れ、反応容器５内の滞留液６の温度が所定温度と
なるように同滞留液６の温度を温度検出器４で検
出し、温度調節計３からの信号で熱源制御されて
いる加熱器２を経由して昇温後70℃以上にして反
応容器５へ供給される。同反応容器５の滞留液６
はPH検出器１４でPHを検出し、PH調節計１５から
の信号で微量ポンプ１２を制御し、硫酸（もしく
は塩酸）Ｃを反応容器５へ注入して３以下の所要
PHとなるようにPH制御されており、さらにその際
前述した反応式(3)〜(4)（もしくは(1)〜(2)）に従つ
て発生するCO2及びSO2を円滑に抜気するため
に、流量調節計１１で所要流量に制御されている
空気Ｂの一部もしくは全部は分配弁２２を操作し
て流量指示計１７並びに空気吹込み管８を介して
滞留液６中に吹込むと共に同反応容器５内の滞留
液６中の固形分を沈降させないためにシール材９
を介してモータ１０で駆動する撹拌機７によつて
撹拌されている。次に定量ポンプ１からの試料ス
ラリーＡの供給による滞留液６の液量の増加分は
オーバーフロー管２３から液封器１３に排出さ
れ、同液封器１３では反応容器５内のCO2及び
SO2を含有する混合ガスＥがオーバーフロー液に
同伴して洩れ出さないように反応容器５の内圧に
打ち勝つだけの液深となるようにオーバーフロー
管２３の先端を液封器１３内の液中に浸漬されて
おり、同液封器１３に流入するオーバーフロー液
の余剰液量は廃液Ｄとなつて排出される。反応式
(3)〜(4)（もしくは(1)〜(2)）に従つて発生したCO2
もしくはSO2並びに空気吹込管８からの空気と蒸
発水分との混合ガスＥは、反応容器５をバイパス
している空気１６と合流したのち排気Ｆとして放
出されるが、その排気Ｆの一部は除湿器２４で含
有している水分をドレンＨとして除去されたのち
空気ポンプ１８で吸引され、CO2分析計１９並び
にSO2分析計２５に送られ、同CO2分析計１９並
びにSO2分析計２５で各々CO2濃度並びにSO2濃
度が測定されてのち排気Ｇとして放出される。
CO2分析計１９並びに、SO2分析計２５での各々
の測定信号はスラリー中のCaCO3濃度並びに
CaSO3濃度を算出するためのCaCO3演算器２０
並びにCaSO3演算器２６に送られ、スラリー採取
流量信号＊２及び空気流量信号＊１の各値と共に
演算処理されスラリー中のCaCO3及びCaSO3の
濃度を次式で算出し、CaCO3濃度は濃度指示計
２１でまたCaSO3濃度は濃度指示計２７で各々指
示させている。 This conventional measuring means will be explained based on FIG . 1. In FIG. The temperature of the retained liquid 6 is detected by a temperature detector 4 so as to reach a predetermined temperature, and the temperature is raised to 70°C or higher via a heater 2 whose heat source is controlled by a signal from a temperature controller 3, and then the reaction is carried out. It is supplied to the container 5. Remaining liquid 6 in the same reaction container 5
The PH is detected by the PH detector 14, the micro-pump 12 is controlled by the signal from the PH controller 15, and sulfuric acid (or hydrochloric acid) C is injected into the reaction vessel 5 to reach the required level of 3 or less.
The PH is controlled so that the PH is maintained, and at that time, the CO 2 and SO 2 generated according to the reaction equations (3) to (4) (or (1) to (2)) described above are smoothly vented. In order to A sealing material 9 is used to prevent the solids in the liquid 6 in the reaction vessel 5 from settling.
The mixture is stirred by a stirrer 7 driven by a motor 10. Next, the increase in the volume of the retained liquid 6 due to the supply of sample slurry A from the metering pump 1 is discharged from the overflow pipe 23 to the liquid seal 13, where the CO 2 and
The tip of the overflow pipe 23 is immersed in the liquid in the liquid seal 13 so that the liquid depth is sufficient to overcome the internal pressure of the reaction vessel 5 so that the mixed gas E containing SO 2 does not leak along with the overflow liquid. The excess liquid amount of the overflow liquid flowing into the liquid sealing vessel 13 is discharged as waste liquid D. reaction formula
CO 2 generated according to (3) to (4) (or (1) to (2))
Alternatively, SO 2 and the mixed gas E of air and evaporated moisture from the air blowing pipe 8 are released as exhaust F after combining with the air 16 bypassing the reaction vessel 5, but a part of the exhaust F is After the moisture contained in the dehumidifier 24 is removed as a drain H, it is sucked in by the air pump 18 and sent to the CO 2 analyzer 19 and SO 2 analyzer 25. 25, the CO 2 concentration and SO 2 concentration are measured and then released as exhaust gas.
The measurement signals from the CO 2 analyzer 19 and the SO 2 analyzer 25 indicate the CaCO 3 concentration in the slurry and
CaCO 3 calculator 20 for calculating CaSO 3 concentration
It is sent to the CaSO 3 calculator 26 and processed together with each value of the slurry sampling flow rate signal *2 and air flow rate signal *1 to calculate the concentration of CaCO 3 and CaSO 3 in the slurry using the following formula, and the CaCO 3 concentration is A concentration indicator 21 indicates the CaSO 3 concentration, and a concentration indicator 27 indicates the CaSO 3 concentration.
CaSO3濃度〔mol／〕
＝X1×Ｑ／（100−x1−x2）×22.4×Ｆ
CaCO3濃度〔mol／〕
＝X2×Ｑ／（100−x1−x2）×22.4×Ｆ
X1：SO2濃度〔vol％〕
X2：CO2濃度〔vol％〕
Ｑ：抜き込み用と混合用各空気の合計流量
〔Nl／mln〕
Ｆ：スラリー採取流量〔／min〕
〔上記従来の測定手段の欠点〕
ところで、上記従来の測定手段では、生成CO2
並びにSO2の反応液中からの抜気は、空気のみを
液中に浸漬した空気吹込み管から吹込んでいる。
このため、空気吹込み管の反応液浸部内壁に
CaCl2もしくはCaSO4の硬質スケールが生成し、
これが経時的に生長し、ついには吹込み管を閉塞
し抜気不能に陥いらせてしまう欠点を有してい
る。本発明者は、この従来手段でスラリー中の
CaCO3濃度及びCaSO3濃度を測定したところ、
第２図に示す結果を得た。この図から明らかなよ
うに、約12時間の連続測定経過後では急激に各濃
度が低下し、結局、従来手段では連続測定の可能
時間が約12時間であることが判明し、これ以上の
時間に於ける測定結果は、もはや信頼できるもの
ではないことが明らかとなつた。CaSO 3 concentration [mol/] = X 1 × Q / (100−x 1 − x 2 ) × 22.4 × F CaCO 3 concentration [mol /] = X 2 × Q / (100− x 1 − x 2 ) × 22.4 × F X 1: SO 2 concentration [ vol %] Disadvantages of the above conventional measuring means] By the way, with the above conventional measuring means, the generated CO 2
In addition, air is removed from the SO 2 reaction solution by blowing only air through an air blowing tube immersed in the solution.
For this reason, the inner wall of the reaction liquid immersion part of the air blowing tube
A hard scale of CaCl 2 or CaSO 4 is generated,
This has the disadvantage that it grows over time and eventually blocks the insufflation pipe, making it impossible to evacuate the air. The present inventor has discovered that using this conventional means,
When CaCO 3 concentration and CaSO 3 concentration were measured,
The results shown in FIG. 2 were obtained. As is clear from this figure, after approximately 12 hours of continuous measurement, each concentration rapidly decreases, and in the end, it was found that the possible time for continuous measurement with conventional means was approximately 12 hours, and that It became clear that the results of the measurements were no longer reliable.
そこで、本発明は、上記従来手段の欠点を解消
し、長時間にわたつてスラリー中のCaCO3濃度
及びCaSO3濃度あるいはそのいずれかの濃度を連
続的に測定することができる測定方法を提供する
ことを目的とする。
Therefore, the present invention solves the drawbacks of the above conventional means and provides a measuring method that can continuously measure the CaCO 3 concentration and/or CaSO 3 concentration in a slurry over a long period of time. The purpose is to
そして、本発明は、上記目的を達成する手段と
して、従来手段の反応生成ガスであるCO2・SO2
の抜き出し用として使用する空気に、スラリー中
のCaCO3・CaSO3と反応させる硫酸もしくは塩
酸を混合し、この空気と硫酸もしくは塩酸との混
合物を撹拌式連続反応容器内のスラリー中に吹き
込む点にある。すなわち、本発明は、CaCO3及
びCaSO3あるいはそのいずれかを含有するスラリ
ーを連続的に定量採取し、これを外気と遮断され
た撹拌式連続反応容器へ供給し、該容器内滞留液
の増加分をオーバーフロー管から液封器を介して
系外に排出し、さらに、該容器へ硫酸もしくは塩
酸を加えてスラリー中のCaCO3・CaSO3と反応
させ、生成するCO2・SO2を、該容器内のスラリ
ー中に吹き込む空気に同伴させて同容器外へ抜き
出し、この抜き出しガスをさらに空気と混合し、
混合ガス中のCO2濃度・SO2濃度と上記スラリー
採取量と上記吹き込み空気並びに上記混合用空気
の合計空気流量との各値を用いて演算し、スラリ
ー中のCaCO3濃度・CaSO3濃度を算出する
CaCO3及びCaSO3あるいはそのいずれかを含有
するスラリー中のCaCO3濃度・CaSO3濃度を連
続的に測定する方法に於いて、上記撹拌式連続反
応容器へ添加する硫酸もしくは塩酸を、同容器内
のスラリー中に吹き込む空気と混合し、この硫酸
もしくは塩酸との混合物を同容器内のスラリー中
に吹き込むことを特徴とするスラリー中の
CaCO3濃度・CaSO3濃度の連続測定方法である。
The present invention, as a means to achieve the above object, uses CO 2 / SO 2 which is a reaction product gas of conventional means.
The air used for extraction is mixed with sulfuric acid or hydrochloric acid to react with CaCO 3 / CaSO 3 in the slurry, and the mixture of air and sulfuric acid or hydrochloric acid is blown into the slurry in a stirring continuous reaction vessel. be. That is, the present invention continuously collects a fixed amount of slurry containing CaCO 3 and/or CaSO 3 , supplies it to a stirred continuous reaction container that is isolated from the outside air, and increases the amount of liquid residing in the container. is discharged from the overflow tube to the outside of the system via a liquid seal, and then sulfuric acid or hydrochloric acid is added to the container to react with CaCO 3 and CaSO 3 in the slurry, and the generated CO 2 and SO 2 are The slurry in the container is accompanied by air that is blown into the slurry and extracted outside the container, and this extracted gas is further mixed with air.
The CaCO 3 concentration and CaSO 3 concentration in the slurry are calculated using the CO 2 concentration and SO 2 concentration in the mixed gas, the amount of slurry collected above, and the total air flow rate of the blown air and mixing air . calculate
In a method for continuously measuring CaCO 3 concentration and CaSO 3 concentration in a slurry containing CaCO 3 and/or CaSO 3 , sulfuric acid or hydrochloric acid is added to the above-mentioned stirring type continuous reaction vessel in the same vessel. A mixture of sulfuric acid or hydrochloric acid and sulfuric acid or hydrochloric acid is blown into the slurry in the same container.
This is a continuous measurement method for CaCO 3 concentration and CaSO 3 concentration.
以下、本発明を第３図に基づいて詳細に説明す
る。第３図に於いて、前記した従来の測定手段を
示す第１図と同一部分に同一符号が付与されてい
る。そこで、第１図と同一部分の説明を省略し、
異なるところについて説明すると、第３図におい
て、反応式(3)〜(4)（もしくは(1)〜(2)）に従つて発
生するCO2及びSO2を円滑に抜気するために流量
調節計１１で所要流量に制御されている空気Ｂの
一部もしくは全部は分配弁２２を操作して流量指
示計１７を介してのち滞留液６のPHを制御してい
るPH調節計１５の信号で駆動している微量ポンプ
１２から送られてくる塩酸（もしくは硫酸）と混
合されて空気吹き込み管８を介して滞留液６中に
吹き込まれている。 Hereinafter, the present invention will be explained in detail based on FIG. In FIG. 3, the same reference numerals are given to the same parts as in FIG. 1, which shows the conventional measuring means described above. Therefore, the explanation of the same parts as in Fig. 1 is omitted,
To explain the difference, in Fig. 3, the flow rate is adjusted to smoothly vent CO 2 and SO 2 generated according to reaction formulas (3) to (4) (or (1) to (2)). A part or all of the air B, which is controlled at the required flow rate in the total flow rate 11, is supplied by operating the distribution valve 22 and passing through the flow rate indicator 17, and then by the signal from the PH controller 15, which controls the PH of the retained liquid 6. It is mixed with hydrochloric acid (or sulfuric acid) sent from the micro-volume pump 12 that is being driven, and is blown into the stagnant liquid 6 via the air blowing pipe 8.
このように本発明による塩酸（もしくは硫酸）
を抜気用空気と混合して吹き込む方法としたこと
で空気吹き込み管８の滞留液浸漬部内壁は常に塩
酸（もしくは硫酸）によつて洗浄されることとな
り、従来法において見られたスケール生成による
不具合を解消することができた。 Thus, hydrochloric acid (or sulfuric acid) according to the present invention
By using the method of blowing mixed air with venting air, the inner wall of the immersed liquid part of the air blowing pipe 8 is constantly cleaned with hydrochloric acid (or sulfuric acid), which prevents the scale formation seen in the conventional method. I was able to resolve the problem.
以下本発明の実施例をあげて、本発明をより詳
細に説明する。 EXAMPLES The present invention will be described in more detail below with reference to Examples.
第３図の態様をなす試験装置を下記条件にて操
作した結果、第４図に示す測定結果を得た。
As a result of operating the test apparatus having the embodiment shown in FIG. 3 under the following conditions, the measurement results shown in FIG. 4 were obtained.
〈条件〉
スラリー中のCaSO3濃度 ：0.051mol／
スラリー中のCaCO3濃度 ：0.056mol／
スラリー採取流量 ：0.12／min
吹込空気流量 ：7Nl／min
反応温度設定 ：75℃
反応PH設定 ：２
反応容器容量 ：１
全空気流量 ：20Nl／min
第４図においてａ点では塩酸を硫酸に切替えた
ことを示す。この第４図から明らかなように、
120時間継続して測定してもスラリー中のCaCO3
濃度並びにCaSO3濃度に変化がみられなかつた。<Conditions> CaSO 3 concentration in slurry: 0.051 mol / CaCO 3 concentration in slurry: 0.056 mol / Slurry collection flow rate: 0.12/min Blowing air flow rate: 7 Nl/min Reaction temperature setting: 75°C Reaction PH setting: 2 Reaction vessel Capacity: 1 Total air flow rate: 20Nl/min In Figure 4, point a shows that hydrochloric acid was switched to sulfuric acid. As is clear from this figure 4,
CaCO3 in the slurry even after 120 hours of continuous measurement
No change was observed in the concentration or CaSO 3 concentration.
本発明は、以上詳記したように、反応容器へ添
加する硫酸もしくは塩酸を、同容器内のスラリー
中に吹き込む抜気用空気と混合し、この混合物を
同容器内のスラリー中に吹き込むようにしたもの
であるから、スケール生成によるCaCO3濃度及
びCaSO3濃度の測定精度低下が防止でき、長時間
にわたつて連続的に該濃度を正確に測定すること
ができる効果が生ずるものである。
As detailed above, the present invention includes a method in which sulfuric acid or hydrochloric acid added to a reaction vessel is mixed with deaerating air blown into the slurry in the same vessel, and this mixture is blown into the slurry in the same vessel. Therefore, it is possible to prevent a decrease in measurement accuracy of CaCO 3 concentration and CaSO 3 concentration due to scale formation, and it is possible to accurately measure the concentration continuously over a long period of time.
第１図は従来の測定手段を説明するための図で
あり、第２図は従来の測定手段で測定した実験結
果を示す。第３図は本発明を説明するための図で
あり、第４図は本発明の実施例である測定手段で
測定した実験結果を示す。
Ａ…試料スラリ、Ｂ…空気、Ｃ…塩酸（もしく
は硫酸）、Ｄ…廃液、Ｅ…混合ガス、Ｆ…排気、
Ｇ…排気、Ｈ…ドレン、１…定量ポンプ、２…加
熱器、３…温度調節計、４…温度検出器、５…反
応容器、６…滞留液、７…撹拌機、８…空気吹込
み管、９…シール材、１０…モータ、１１…流量
調節計、１２…微量ポンプ、１３…液封器、１４
…PH検出器、１５…PH調節計、１６…空気、１７
…流量指示計、１８…空気ポンプ、１９…CO2分
析計、２０…CaCO3演算器、２１…濃度指示計、
２２…分配弁、２３…オーバーフロー管、２４…
除湿器、２５…SO2分析計、２６…CaSO3演算
器、２７…濃度指示計、＊１…空気流量信号、＊
２…スラリー採取流量信号。
FIG. 1 is a diagram for explaining a conventional measuring means, and FIG. 2 shows experimental results measured by the conventional measuring means. FIG. 3 is a diagram for explaining the present invention, and FIG. 4 shows experimental results measured by a measuring means that is an embodiment of the present invention. A...sample slurry, B...air, C...hydrochloric acid (or sulfuric acid), D...waste liquid, E...mixed gas, F...exhaust,
G... Exhaust, H... Drain, 1... Metering pump, 2... Heater, 3... Temperature controller, 4... Temperature detector, 5... Reaction container, 6... Remaining liquid, 7... Stirrer, 8... Air blowing Pipe, 9...Sealing material, 10...Motor, 11...Flow rate controller, 12...Minor pump, 13...Liquid seal, 14
...PH detector, 15...PH controller, 16...Air, 17
...Flow rate indicator, 18...Air pump, 19... CO2 analyzer, 20... CaCO3 calculator, 21...Concentration indicator,
22... Distribution valve, 23... Overflow pipe, 24...
Dehumidifier, 25... SO 2 analyzer, 26... CaSO 3 calculator, 27... Concentration indicator, *1... Air flow rate signal, *
2...Slurry sampling flow rate signal.
Claims (1)
含有するスラリーを連続的に定量採取し、これを
外気と遮断された撹拌式連続反応容器へ供給し、
該容器内滞留液の増加分をオーバーフロー管から
液封器を介して系外に排出し、さらに、該容器へ
硫酸もしくは塩酸を加えてスラリー中の
CaCO3・CaSO3と反応させ、生成するCO2・SO2
を、該容器内のスラリー中に吹き込む空気に同伴
させて同容器外へ抜き出し、この抜き出しガスを
さらに空気と混合し、混合ガス中のCO2濃度・
SO2濃度と上記スラリー採取量と上記吹き込み空
気並びに上記混合用空気の合計空気流量との各値
を用いて演算し、スラリー中のCaCO3濃度・
CaSO3濃度を算出するCaCO3及びCaSO3あるい
はそのいずれかを含有するスラリー中のCaCO3
濃度・CaSO3濃度を連続的に測定する方法に於い
て、上記撹拌式連続反応容器内へ添加する硫酸も
しくは塩酸を、同容器内のスラリー中に吹き込む
空気と混合し、この硫酸もしくは塩酸との混合物
を同容器内のスラリー中に吹き込むことを特徴と
するスラリー中のCaCO3濃度・CaSO3濃度の連
続測定方法。1. Continuously and quantitatively sampling a slurry containing CaCO 3 and/or CaSO 3 and supplying it to a stirred continuous reaction vessel isolated from the outside air,
The increased amount of liquid remaining in the container is discharged from the overflow pipe to the outside of the system via a liquid seal, and sulfuric acid or hydrochloric acid is added to the container to remove the remaining liquid in the slurry.
CO 2 / SO 2 generated by reacting with CaCO 3 / CaSO 3
The CO 2 concentration in the mixed gas is
The CaCO 3 concentration in the slurry is calculated using the SO 2 concentration, the amount of slurry collected, and the total air flow rate of the blown air and mixing air.
CaCO 3 in slurry containing CaCO 3 and/or CaSO 3 to calculate CaSO 3 concentration
In the method of continuously measuring concentration/CaSO 3 concentration, sulfuric acid or hydrochloric acid added to the above-mentioned stirring type continuous reaction vessel is mixed with air blown into the slurry in the same vessel, and the sulfuric acid or hydrochloric acid is mixed with air. A method for continuously measuring CaCO 3 concentration and CaSO 3 concentration in a slurry, which is characterized by blowing a mixture into the slurry in the same container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1021684A JPS60154158A (en) | 1984-01-25 | 1984-01-25 | Method for measuring continuously concentration of caco3 and concentration of caso3 in slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1021684A JPS60154158A (en) | 1984-01-25 | 1984-01-25 | Method for measuring continuously concentration of caco3 and concentration of caso3 in slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60154158A JPS60154158A (en) | 1985-08-13 |
| JPH0369067B2 true JPH0369067B2 (en) | 1991-10-30 |
Family
ID=11744069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1021684A Granted JPS60154158A (en) | 1984-01-25 | 1984-01-25 | Method for measuring continuously concentration of caco3 and concentration of caso3 in slurry |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60154158A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101246406B1 (en) | 2011-05-30 | 2013-03-21 | 현대제철 주식회사 | Activity testing device |
-
1984
- 1984-01-25 JP JP1021684A patent/JPS60154158A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60154158A (en) | 1985-08-13 |
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