KR900003471B1 - Aqueous solution of alkali metal compositions and adding method - Google Patents
Aqueous solution of alkali metal compositions and adding method Download PDFInfo
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- KR900003471B1 KR900003471B1 KR1019840003344A KR840003344A KR900003471B1 KR 900003471 B1 KR900003471 B1 KR 900003471B1 KR 1019840003344 A KR1019840003344 A KR 1019840003344A KR 840003344 A KR840003344 A KR 840003344A KR 900003471 B1 KR900003471 B1 KR 900003471B1
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- alkali metal
- aqueous solution
- sodium
- water
- metal composition
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- 239000007864 aqueous solution Substances 0.000 title claims description 31
- 229910052783 alkali metal Inorganic materials 0.000 title claims description 21
- 150000001340 alkali metals Chemical class 0.000 title claims description 19
- 239000000203 mixture Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 57
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 45
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910001868 water Inorganic materials 0.000 claims description 24
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 20
- 239000004317 sodium nitrate Substances 0.000 claims description 20
- 235000010344 sodium nitrate Nutrition 0.000 claims description 20
- 229920006395 saturated elastomer Polymers 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 10
- 239000011780 sodium chloride Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 6
- 229910001963 alkali metal nitrate Inorganic materials 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- -1 alkali metal salt Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/28—Cleaning or pickling metallic material with solutions or molten salts with molten salts
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
Abstract
내용 없음.No content.
Description
본 발명은 일반적으로 용융염욕의 보급용 재료, 특히 수용액으로서 무수 용융염욕에 대하여 스프레이법에 의하여 첨가되는 재료에 관한 것이다.The present invention generally relates to a material for replenishing a molten salt bath, in particular a material added by spraying to anhydrous molten salt bath as an aqueous solution.
미합중국 특허 제 4,113,511호는, 몇가지의 화학물질의 수용액을 스프레이 즉 분무법에 의하여, 상기 화학물질의 욕면상에 스프레이된 조성물이 욕 표면에 충돌하기 전에, 그 중의 수분이 증발하기에 충분한 크기의 작은 물방울로 하여, 상기 화학물질의 무수용융염욕에 첨가할 수 있는 것을 나타내고 있다.U.S. Patent No. 4,113,511 discloses droplets of sufficient size to allow water to evaporate before the composition sprayed on the bath surface of the chemical impinges on the bath surface by spraying or spraying an aqueous solution of several chemicals. It shows that it can add to the anhydrous molten salt bath of the said chemical substance.
미합중국 특허 제 4,273,591호는, 화학물질의 수용액을 무수용융 염욕에 이와 같은 스프레이 첨가를 행하는 장치를 제시하고 있다.U.S. Patent No. 4,273,591 discloses an apparatus for performing such a spray addition of an aqueous solution of a chemical to an anhydrous molten salt bath.
그러나, 이제까지에는, 탈 스케일 등의 금속처리에 사용하는 여러 종류의 알카리 금속 수산화물이나 알카리 금속 질산염(窒酸鹽)의 수용액이 많은 것은 각종의 문제를 일으키고, 이로 인하여 상기의 처리법이나 장치를 사용하는 것은 바람직하지 않은 것으로 여겨지고 있다.However, until now, many aqueous solutions of alkali metal hydroxides and alkali metal nitrates used for metal treatment such as descaling have various problems, and therefore, the above treatment method and apparatus are used. It is considered undesirable.
그러므로, 일정의 상태를 유지하는 용액으로 되고, 산업 환경에 있어서의 작업 조건 아래에서 균일하고 또한 일괄되게 스프레이 할 수 있는 보급제의 평형하고 안정한 수용액을 제공하는 것이 대단히 요망되고 있다.Therefore, it is highly desired to provide a balanced and stable aqueous solution of a refilling agent which becomes a solution which maintains a constant state and which can be sprayed uniformly and collectively under the working conditions in an industrial environment.
이것은 알카리 금속염을 함유하는 무수 용융욕염에 대한 보급용 수용액을 조정할 때에 특히 필요하다.This is especially necessary when adjusting the aqueous solution for replenishment with respect to the anhydrous molten bath salt containing an alkali metal salt.
따라서, 본 발명은 상기의 요구에 합치는 보급용 수용액을 제공하는 것을 목적으로 한다.Therefore, an object of this invention is to provide the aqueous solution for replenishment which meets the said request | requirement.
본 발명에 의하면, 알카리 금속 질산염과 알카리 금속 수산화물을 포함하는 금속 처리욕용 무수 용융염욕에 대한 보급제로서 극히 양호한 수용액상 물질이, 알카리 금속 수산화물과 알카리 금속 질산염을 함유하는 실질적인 포화균일 수용액에 의하여 얻어지는 것을 알게 되었다.According to the present invention, an extremely good aqueous solution material as a filler for anhydrous molten salt baths for metal treatment baths containing alkali metal nitrates and alkali metal hydroxides is obtained by a substantially saturated homogeneous aqueous solution containing alkali metal hydroxides and alkali metal nitrates. I found out.
이 경우에 상기 용액은 50℃로 액상으로 되고, 노즐을 통하여 스프레이 시킨 경우에 작은 물방울을 형성할 수 있기에 충분할 정도로 점도가 낮고, 50℃와 110℃의 사이에서 침전물이 전혀 생기지 않는다.In this case, the solution becomes liquid at 50 ° C, and the viscosity is low enough to form droplets when sprayed through the nozzle, and no precipitate is formed between 50 ° C and 110 ° C.
이 욕에는 염화물이나 과망간산염 등의 다른 물질을 함유시키는 것도 가능하다.The bath can also contain other substances such as chlorides and permanganate salts.
상기의 미합중국 특허 제 4,113,511호에 기재되어 있는 바와 같이, 무수 용융 금속 처리욕에 알카리 금속 수산화물과 알카리 금속 질산염을 보급하기 위하여 본 발명을 실시하기에 적당하기는, 당해 보급제를 극히 명확한 특성을 갖는 확실한 몇가지의 수용액으로 제어하는 것이 극히 바람직한 것이 판명되엇다.As described in U.S. Patent No. 4,113,511, suitable for carrying out the present invention for replenishing alkali metal hydroxides and alkali metal nitrates in anhydrous molten metal treatment baths, the fillers have extremely definite characteristics. It has turned out to be extremely desirable to control with certain aqueous solutions.
보급 재료의 특성을 제어하는 것에 의하여 산업상 경제적인 보급 방법이 제공됨과 동시에, 바라지 않는 침전물, 노즐의 막힘, 유해과잉 수분, 성분의 불균형 등의 유독 작용이 저감되고, 또는 제거된다.Controlling the properties of the replenishment material provides an industrially economical replenishment method while at the same time reducing or eliminating toxic effects such as undesired deposits, clogging of nozzles, excess moisture, and imbalance of components.
알카리 금속 수산화물-알카리 금속 질사염계를 사용하여 실시하는 데에는, 알카리 금속의 질산염과 알카리 금속 수산화물의 포화 수용액을 사용하는 것이 가장 유리한 것으로 알게 되었다.It has been found that it is most advantageous to use a saturated aqueous solution of an alkali metal nitrate and an alkali metal hydroxide to carry out using an alkali metal hydroxide-alkali metal vaginating salt system.
노즐을 통하여 작은 물방울로 되어 스프레이 되고 또 50℃의 액상으로 되기 위하여는 용액을 점도가 충분히 낮지 않으면 안된다. 또한 50℃와 110℃ 사이에서 침전물이 전혀 생기지 않도록 하지 않으면 안된다.The solution must be sufficiently low in viscosity to be sprayed through the nozzle into small droplets and to become a liquid at 50 ° C. In addition, no precipitate should be formed between 50 ° C and 110 ° C.
여기에 사용한 용어 "실질적으로 포화한 용액"이란, 가장 용해도가 낮은 물질 또는 물질류가 상관관계로 있는 소망의 온도에 있어서 물에 실질적으로 포화량이고, 잔여 물질은 포화량보다 작은것을 의미한다.The term "substantially saturated solution" as used herein means that the substance or substance is substantially saturated in water at the desired temperature at which the lowest solubility substance or substance class is correlated, and the residual substance is smaller than the amount of saturation.
이것을 결정하는 데에는, 물을 고려하지 아니하는 물질간의 비율(결정수의 물은 포함함)을 결정하지 않으면 안된다.In determining this, the ratio (including the water of the crystallized water) between the substances not considering water must be determined.
이 값이 결정되어진 후에, 최소 가요성분을 완전하게 용해하는 것에 가장 충분한 정도의 물을첨가하여, 조성물이 50℃에서 액상으로 되어 있는가를 확인한다.After this value is determined, water is added to a degree sufficient to completely dissolve the minimum flexible component to confirm whether the composition is in a liquid phase at 50 ° C.
이렇게 하면, 첨가제는 작은 물방울을 만들어 스프레이되어 충분한 낮은 점도로 되어, 50℃와 110℃의 사이에는 전혀 침전물이 생성되지 않는다.In this way, the additive creates small droplets and is sprayed to a sufficiently low viscosity, so that no precipitate is produced at all between 50 ° C and 110 ° C.
다음의 나타낸 것은 알카리 금속의 수산화물과 알카리 금속의 질산염을 함유하고 그 중의 일부의 것은 염화물과 과망간산염을 함유하고 있는 수용액의 몇개의 실시예이다.Shown below are several examples of aqueous solutions containing hydroxides of alkali metals and nitrates of alkali metals, some of which contain chlorides and permanganate salts.
[실시예 1]Example 1
55% 물55% water
15% 질산나트륨15% Sodium Nitrate
30% 수산화나트륨30% sodium hydroxide
100%100%
[실시예 2]Example 2
53.6% 물53.6% water
30.0% 수산화나트륨30.0% sodium hydroxide
15.0% 질산나트륨15.0% Sodium Nitrate
1.4% 수산화칼륨1.4% Potassium Hydroxide
100.0%100.0%
[실시예 3]Example 3
57% 물57% water
30.0% 수산화나트륨30.0% sodium hydroxide
3.6% 수산화칼륨3.6% potassium hydroxide
6.4% 질산나트륨6.4% sodium nitrate
3.0% 염화나트륨3.0% sodium chloride
100.0%100.0%
[실시예 4]Example 4
60.0% 물60.0% water
31.4% 수산화칼륨* 31.4% Potassium Hydroxide *
8.4% 질산나트륨8.4% Sodium Nitrate
0.2% 과망간산칼륨0.2% Potassium Permanganate
100.0%100.0%
[실시예 5]Example 5
55.0% 물55.0% water
21.6% 수산화나트륨21.6% sodium hydroxide
21.2% 질산나트륨21.2% sodium nitrate
6.4% 수산나트륨6.4% sodium hydroxide
2.2% 염화나트륨2.2% sodium chloride
100.0%100.0%
[실시예 6]Example 6
55.0% 물55.0% water
27.6% 수산화나트륨27.6% sodium hydroxide
13.0% 질산나트륨13.0% Sodium Nitrate
1.4% 수산화칼륨1.4% Potassium Hydroxide
3.0% 염화나트륨3.0% sodium chloride
100.0%100.0%
* 순도 85%의 공업용 KOH에 의함.* Industrial KOH with purity of 85%.
각종 보급제의 포화도를 아래에 나타낸다.The saturation degree of various fillers is shown below.
[실시예 1]Example 1
수산화나트륨의 존재하에 질산니트륨이 포화하였다.The sodium nitrate was saturated in the presence of sodium hydroxide.
[실시예 2]Example 2
상기보다 다량의 수산화물의 존재하에 결산나트륨이 포화하였다.Sodium silicate was saturated in the presence of a larger amount of hydroxide than above.
[실시예 3]Example 3
상기보다 다량의 수산화나트륨과 수산화칼륨의 존재하에 질산나트륨과 염화나트륨이 포화하였다.Sodium nitrate and sodium chloride were saturated in the presence of a greater amount of sodium hydroxide and potassium hydroxide than above.
[실시예 4]Example 4
상기보다 다량의 수산화칼륨의 존재하에 질산염(NO- 3)이 포화하였다.Nitrate (NO - 3 ) was saturated in the presence of a greater amount of potassium hydroxide.
[실시예 5]Example 5
수산화나트륨의 존재하에 염화나트륨과 질산나트륨이 포화하였다.Sodium chloride and sodium nitrate were saturated in the presence of sodium hydroxide.
[실시예 6]Example 6
상기보다 다량의 수산화나트륨과 수산화칼륨의 존재하에 질산염(NO- 3)과 염화물(Cl-)이 포화하였다. (- 3 NO) and chloride (Cl -) were saturated the nitrate in the presence of large amounts of sodium hydroxide and potassium hydroxide, more.
또한, 상기 실시예의 단위 「%」는 「무게 %(weight percent)」의 단위를 나타낸다.In addition, the unit "%" of the said Example shows the unit of "weight percent."
주의할 점은, 수용액중에는 많은 물질이 이온화하고 있으므로 포화의 판정은 이들의 이온이 침전물을 생성하는 농도에 의하여서 행하는 것이다.Note that since many substances are ionized in the aqueous solution, the determination of saturation is performed by the concentration at which these ions produce a precipitate.
상기 각 실시예에 사용한 수용액은, 오리피스 직경이 0.4572㎜(0.018")의 노즐을 사용하고, 50℃에서 막히지 아니하고 용이하게 스프레이할 수가 있다.The aqueous solution used in each of the above examples can be easily sprayed without blocking at 50 ° C using a nozzle having an orifice diameter of 0.4572 mm (0.018 ").
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019840003344A KR900003471B1 (en) | 1984-06-14 | 1984-06-14 | Aqueous solution of alkali metal compositions and adding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019840003344A KR900003471B1 (en) | 1984-06-14 | 1984-06-14 | Aqueous solution of alkali metal compositions and adding method |
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| Publication Number | Publication Date |
|---|---|
| KR860000406A KR860000406A (en) | 1986-01-28 |
| KR900003471B1 true KR900003471B1 (en) | 1990-05-19 |
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| KR1019840003344A Expired KR900003471B1 (en) | 1984-06-14 | 1984-06-14 | Aqueous solution of alkali metal compositions and adding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101235749B1 (en) * | 2005-12-09 | 2013-02-21 | 주식회사 포스코 | Salt for pickling treatment of cold annealed stainless steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940002628B1 (en) * | 1990-02-17 | 1994-03-26 | 가부시끼가이샤 도시바 | Fan |
| KR102586435B1 (en) * | 2023-06-12 | 2023-10-06 | 조금자 | Reverse device for socks |
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1984
- 1984-06-14 KR KR1019840003344A patent/KR900003471B1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101235749B1 (en) * | 2005-12-09 | 2013-02-21 | 주식회사 포스코 | Salt for pickling treatment of cold annealed stainless steel |
Also Published As
| Publication number | Publication date |
|---|---|
| KR860000406A (en) | 1986-01-28 |
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