JPS62281975A - Production of protein fire extinguishing agent - Google Patents
Production of protein fire extinguishing agentInfo
- Publication number
- JPS62281975A JPS62281975A JP12656786A JP12656786A JPS62281975A JP S62281975 A JPS62281975 A JP S62281975A JP 12656786 A JP12656786 A JP 12656786A JP 12656786 A JP12656786 A JP 12656786A JP S62281975 A JPS62281975 A JP S62281975A
- Authority
- JP
- Japan
- Prior art keywords
- fire extinguishing
- extinguishing agent
- protein
- foam fire
- filtration
- 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.)
- Granted
Links
- 102000004169 proteins and genes Human genes 0.000 title claims description 27
- 108090000623 proteins and genes Proteins 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000006260 foam Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 8
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 2
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 15
- 239000002244 precipitate Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 239000000706 filtrate Substances 0.000 description 11
- 238000006386 neutralization reaction Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 9
- 239000000920 calcium hydroxide Substances 0.000 description 9
- 235000011116 calcium hydroxide Nutrition 0.000 description 9
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 102000011782 Keratins Human genes 0.000 description 4
- 108010076876 Keratins Proteins 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 3
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- RSIPQRDGPVEGLE-UHFFFAOYSA-L calcium;disulfamate Chemical compound [Ca+2].NS([O-])(=O)=O.NS([O-])(=O)=O RSIPQRDGPVEGLE-UHFFFAOYSA-L 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- -1 ammonium ions Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Fire-Extinguishing Compositions (AREA)
- Peptides Or Proteins (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
この発明は、たん白泡消火薬剤の製造方法に関し、さら
に詳しくは、ケラチンたん白質をアルカリで加水分解し
て得られるたん内薄水分解物質の中和手段を改善するこ
とにより、製造工程の簡略化、製造時間の短縮化を図り
、併せて製品の収率を向上し得るようにした。たん白泡
消火薬剤の製造方法の改良に係るものである。[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for producing a protein foam fire extinguishing agent, and more specifically, the present invention relates to a method for producing a protein foam fire extinguishing agent, and more specifically, a method for producing a protein foam fire extinguishing agent. By improving the means for neutralizing the sputum water-decomposed substances produced, we have simplified the manufacturing process, shortened the manufacturing time, and improved the yield of the product. This invention relates to improvements in the manufacturing method of protein foam fire extinguishing agents.
従来から、この種のたん白泡消火薬剤は、ケラチンたん
白質を熱アルカリにより加水分解し、ついで第一次濾過
、中和（および／または脱塩）第二次濾過、濃縮、安定
剤添加などの各工程を経て製造されており、この場合、
ケラチンたん白質の加水分解のためには、通常の場合、
水酸化ナトリウム、および水酸化カルシウムを用いるこ
とができる。Conventionally, this type of protein foam fire extinguishing agent has been produced by hydrolyzing keratin protein with a hot alkali, followed by primary filtration, neutralization (and/or desalination), secondary filtration, concentration, addition of stabilizers, etc. It is manufactured through each process, and in this case,
For hydrolysis of keratin protein, normally
Sodium hydroxide and calcium hydroxide can be used.
こ〜で、前者、水酸化ナトリウムを用いて得るたん白泡
消火薬剤の場合には、泡の流動性に優れている反面、第
一次濾過が極めて困難であり、かつ泡自体の耐火性、耐
液性が劣ると共に、長期貯蔵中の耐腐食性、ならびに安
定性に欠けることから一般的ではなく、これに対し、後
者、水酸化カルシウムを用いるたん白泡消火薬剤の場合
にあっては、泡自体の耐火性、＃液性と、それに長期貯
蔵性にそれぞれ優れており、一般的に使用されている。In the case of the former, a protein foam fire extinguishing agent obtained using sodium hydroxide, although the foam has excellent fluidity, primary filtration is extremely difficult, and the fire resistance of the foam itself is poor. It is not common because it has poor liquid resistance and lacks corrosion resistance and stability during long-term storage.On the other hand, in the case of the latter, a protein foam fire extinguishing agent that uses calcium hydroxide, The foam itself has excellent fire resistance, liquid properties, and long-term storage, and is commonly used.
しかしながら、前記貨来例方法での水酸化カルシウムを
用いるたん白泡消火薬剤の製造に際しても、次に述べる
ように、その製造工程中に多くの困難を伴なう。However, even when producing a protein foam fire extinguishing agent using calcium hydroxide using the conventional method, many difficulties are encountered during the production process, as described below.
すなわち、水酸化カルシウムによって加水分解されたた
ん白物質は、通常、硫酸を用いて中和する方法と、重炭
酸アンモニウムの単独、あるいは重炭酸アンモニウムと
重炭酸ナトリウムの併用により中和脱塩する方法とが採
用されているが、前者手段によっては硫酸カルシウムの
沈殿を、後者手段によっては炭酸カルシウムの沈殿を多
量に生ずるため、その後の工程に種々の困難をもたらす
ことになる。In other words, protein substances hydrolyzed by calcium hydroxide are usually neutralized using sulfuric acid, or neutralized and desalted using ammonium bicarbonate alone or in combination with ammonium bicarbonate and sodium bicarbonate. However, the former method causes a large amount of calcium sulfate to precipitate, while the latter method causes a large amount of calcium carbonate to precipitate, resulting in various difficulties in subsequent steps.
例えば、第２次濾過工程では、先の中和（および／また
は脱塩）工程で生じた沈殿物が、多量であって粒子が細
かく、しかも液体自体に粘性があることから、濾過操作
が非常に困難で、長時間を費やさなければならない。For example, in the second filtration step, the precipitate generated in the previous neutralization (and/or desalination) step is large and has fine particles, and the liquid itself is viscous, making the filtration process extremely difficult. It is difficult and requires a lot of time.
また、続いてなされる濃縮工程においても、まず、硫酸
を用いて中和した場合には、濾過液が濃縮されてゆくに
つれて、硫酸カルシウムの沈殿が次々に析出され、この
沈殿物が濃縮槽の内底面および内壁面に付着され、熱伝
導性を著るしく阻害して、こ−でもＢ縮に長時間を必要
としており、さらに、重炭酸アンモニウム、または重炭
酸アンモニウムと重炭酸ナトリウムを用いて中和脱塩し
た場合には、ａｌｉｉ液中に沈殿物こそ出てほこないも
の−、濾過液中に多量の炭酸イオンおよびアンモニウム
イオンが含まれているために、濃縮液の温度上昇に伴っ
てこれらが気化し、炭酸ガスおよびアンモニアガスとな
って遊離することから、極めて泡を発生し易い状態にな
り、濃縮槽内で’ｇ３１ｉ１液が泡立って溢れ出ること
もしばしばで、濃縮操作の一時停止を余儀なくされ、発
生した泡を系外に取り出さなければならないなど、極め
て煩雑かつ不便なものであった。In addition, in the subsequent concentration step, if the filtrate is first neutralized using sulfuric acid, calcium sulfate precipitates are deposited one after another as the filtrate is concentrated, and these precipitates are stored in the concentration tank. It adheres to the inner bottom surface and inner wall surface, significantly inhibits thermal conductivity, and requires a long time for B compression. In the case of neutralization and desalination, there is no precipitate in the alii solution.However, since the filtrate contains a large amount of carbonate ions and ammonium ions, as the temperature of the concentrate increases, As these vaporize and become liberated as carbon dioxide gas and ammonia gas, it becomes extremely easy to generate bubbles, and the 'g31i1 liquid often bubbles and overflows in the concentration tank, causing the concentration operation to be temporarily stopped. This was extremely complicated and inconvenient, as the generated bubbles had to be taken out of the system.
この発明方法は、従来例方法でのこのような問題点を改
善するためになされたもので、その目的とするところは
、中和時に厄介な沈殿物を生成することがなく、従って
困難な濾過を必要とせず、かつＣ＆縮時にあっては、沈
殿物の析出とか、面倒な泡立ちを発生させずに、たん白
泡消火薬剤を製造する方法を提供することである。The method of this invention was made to improve these problems in the conventional method, and its purpose is to avoid the formation of troublesome precipitates during neutralization, and therefore to eliminate the difficult filtration process. To provide a method for producing a protein foam fire extinguishing agent without the need for C&condensation, and without producing precipitates or troublesome foaming during C&condensation.
前記目的を達成するために、この発明に係るたん白泡消
火薬剤の製造方法は、水酸化カルシウムによって加水分
解させたたん白物質を、スルファミン酸によって中和さ
せるようにしたことを特徴としている。In order to achieve the above object, the method for producing a protein foam fire extinguishing agent according to the present invention is characterized in that a protein substance hydrolyzed with calcium hydroxide is neutralized with sulfamic acid.
すなわち、この発明においては、水酸化カルシウムによ
って加水分解されたたん白物質を、スルファミン酸によ
って中和させた場合、生成されるスルファミン酸カルシ
ウムの溶解性が非常に高いことに着目したもので、この
発明では、中和工程で沈殿物が析出されることもなく、
また濾過工程を経ずに濃縮工程を実行でき、濃縮操作中
にあっても沈殿物を析出したり、泡立ち現象を全く発生
しないために、このＣ縮操作を簡単かつ短時間で行ない
得るものであって、このように中和およびｃ１２ｉ時に
全く沈殿物を生成しなり・ことから、濾過工程での濾過
液のロスがなく、併せて、スルファミン酸カルシウムと
加水分解たん白物質とが相溶性に優れているために、使
用原料量に対して太きな収率を挙げ得るのである。That is, this invention focuses on the fact that when a protein substance hydrolyzed by calcium hydroxide is neutralized with sulfamic acid, the solubility of calcium sulfamate produced is extremely high. In the invention, no precipitate is deposited during the neutralization process,
Furthermore, the concentration process can be performed without going through a filtration process, and even during the concentration process, no precipitate is deposited or any bubbling occurs, so this C condensation process can be performed easily and in a short time. Therefore, no precipitate is generated during neutralization and c12i, so there is no loss of filtrate in the filtration process, and at the same time, calcium sulfamate and hydrolyzed protein substances are compatible. Because of this superiority, it is possible to achieve high yields relative to the amount of raw materials used.
以下、この発明に係るたん白泡消火薬剤の製造方法の一
実施例につき、従来例方法との比較において詳細に説明
する。Hereinafter, one embodiment of the method for producing a protein foam fire extinguishing agent according to the present invention will be described in detail in comparison with a conventional method.
こ ゛ の− 。This - of this.
粉末ケラチン（蹄角粉）１００重量部を原料とし、これ
に消石灰２４部、水３００部を加え、まず、９４〜９６
℃の温度で加熱して、８時間程度加水分解操作した後、
濾過助剤（凝固防止剤）を添加して第１次濾過操作を行
なう。Using 100 parts by weight of powdered keratin (hoof horn powder) as a raw material, 24 parts of slaked lime and 300 parts of water were added, and the
After heating at a temperature of ℃ and performing hydrolysis operation for about 8 hours,
A first filtration operation is performed by adding a filter aid (anti-caking agent).
ついで、このようにして得た濾過液（ｐＨ１０，Ｑ〜１
１．０）を環ｍ槽に入れ、スルファミン酸により中和し
てｐＨ７，３〜７．５とするが、このとき、スルファミ
ン酸は粉末であって、たん白質を溶解させる作用がある
ために、必要量を一気に槽内に投入してよく、この状態
で加熱濃縮させ、濃縮液の比重が１．２４０程度になっ
た時点で停止し、さらに、濃縮液が常温付近になったと
ころで、安定剤を添加して、その全量を製品たん白泡消
火薬剤として得るのである。Next, the filtrate obtained in this way (pH 10, Q ~ 1
1.0) is placed in a ring tank and neutralized with sulfamic acid to a pH of 7.3 to 7.5.At this time, sulfamic acid is a powder and has the effect of dissolving proteins. , you can put the required amount into the tank all at once, heat and concentrate in this state, stop when the specific gravity of the concentrate reaches about 1.240, and then stabilize it when the concentrate reaches room temperature. The entire amount is obtained as a product protein foam fire extinguishing agent.
′ による ■。′ ■.
粉末ケラチン １００重量部を原料とし、これに消石灰
２４部、水３００部を加え、まず、９４〜９６℃の温度
で加熱して、 ８時間程度加水分解操作した後、濾過助
剤（凝固防止剤）を添加して第１次濾過操作を行なう。100 parts by weight of powdered keratin is used as a raw material, 24 parts of slaked lime and 300 parts of water are added to it, heated at a temperature of 94 to 96 degrees Celsius, and hydrolyzed for about 8 hours. ) and perform the first filtration operation.
ついで、このようにして得た濾過液（ｐＨ０，０〜１１
．０）を中和槽に入れ、硫酸により中和させて、ｐＨ７
，３〜７．５ とするが、この操作で、硫酸を急激に加
えると、たん白物質が著るしく変性するために、長時間
をかけてゆっくり加えてゆく必要があり、さらに続いて
、約半日程度静置した上で、上澄液に挫過助剤を加えて
第２次濾過を行なう。Next, the filtrate obtained in this way (pH 0.0-11
．． 0) in a neutralization tank, neutralize it with sulfuric acid, and adjust the pH to 7.
, 3 to 7.5, but in this operation, if sulfuric acid is added rapidly, the protein substance will be significantly denatured, so it is necessary to add it slowly over a long period of time, and then, After allowing it to stand for about half a day, a crushing aid is added to the supernatant liquid to perform secondary filtration.
その後、この濾過液を濃縮槽に入れて加熱ｅ縮させ、濃
縮液の比重が１．２００程度になった時点で停旧し、か
つ濃縮時に沈殿物が析出されているため、上澄液のみを
取り出し、安定剤を添加して製品たん白泡消火薬剤を得
る。After that, this filtrate is put into a concentration tank and heated and condensed.When the specific gravity of the concentrated liquid reaches about 1.200, it stops working, and since precipitates were deposited during concentration, only the supernatant liquid is left. and add a stabilizer to obtain the product protein foam fire extinguishing agent.
′ による ■。′ ■.
前記比較例Ｉと同様に、第１次濾過によって得た濾過液
（１））Ｉ １０．０〜１１．０）を中和槽に入れ、重
炭酸アンモニウムにより中和させ、５０℃付近で３〜４
時間時間上く撹拌し、約２昼夜半に亘って静置した上で
、上澄液に濾過助剤を加えて第２次濾過を行なう。In the same manner as in Comparative Example I, the filtrate (1)) obtained by the first filtration (I 10.0 to 11.0) was placed in a neutralization tank, neutralized with ammonium bicarbonate, and heated at around 50°C for 30 minutes. ~4
After stirring the mixture for an hour and allowing it to stand for about two days and a half, a filter aid is added to the supernatant liquid to perform secondary filtration.
その後、この濾過液を濃縮槽に入れて加熱ｅ縮させるが
、濾過液の温度上昇に伴い、炭酸ガスおよびアンモニア
ガスが遊離されて泡立ち易くなるため、溢れ出ないよう
に充分に注意し、？：ｉｍ液の比重が１．１８７程度に
なった時点で停止し、かつ濃縮液が常温付近になったと
ころで、安定剤を添加して製品たん白泡消火薬剤を得る
。After that, this filtrate is placed in a concentration tank and heated and e-condensed, but as the temperature of the filtrate increases, carbon dioxide and ammonia gas are liberated and tend to bubble, so be careful not to overflow. : Stop when the specific gravity of the im liquid reaches about 1.187, and when the concentrated liquid reaches room temperature, add a stabilizer to obtain a product protein foam fire extinguishing agent.
こ−で、以上のようにしてそれぞれに製造された。この
実施例方法による製品たん白泡消火薬剤と、比較例Ｉ、
Ｈとしての従来例方法による製品たん白泡消火薬剤とを
比較対照した結果を次表に示す。Each of them was manufactured as described above. Product protein foam fire extinguishing agent according to the method of this example and Comparative Example I,
The following table shows the results of comparing and contrasting the protein foam fire extinguishing agent produced by the conventional method as H.
以上詳述したように、この発明方法では、スルファミン
酸カルシウムの溶解性が非常に高いことに着目して、水
酸化カルシウムによって加水分解させたたん白物質を、
スルファミン酸によって中和させるようにしたから、従
来例方法の場合とは異なって、中和工程で沈殿物が析出
されることがなく、従って沈殿物を沈降分離さ゛せるた
めの静置時間を必要とせず、かつまた、第２次の濾過工
程を経ずに濃縮工程を実行でき、しかも濃縮操作中にあ
っても沈殿物の析出、泡立ち現象などを全く発生しない
ために、これらの面倒でかつ煩雑な操作をせずに済み、
全製造工程を簡単な操作により短時間で行ない得る利点
があり、さらには、このように中和および濃縮時にあっ
て、全く沈殿物を生成しないことから、濾過工程での濾
過液のロスがなく、使用原料量に対して大きな収率、こ
−では、従来例方法に比較するとき、１．３〜１．４倍
にも達する収量を得られて、多量の製品たん白泡消火薬
剤を製造できるものである。As detailed above, in the method of this invention, focusing on the extremely high solubility of calcium sulfamate, a protein substance hydrolyzed with calcium hydroxide is
Since neutralization is carried out with sulfamic acid, no precipitate is deposited during the neutralization process, unlike in the case of conventional methods, and therefore, standing time is required for sedimentation and separation of the precipitate. In addition, the concentration process can be performed without going through the second filtration process, and even during the concentration operation, precipitation of precipitates and bubbling phenomena do not occur at all, so these troublesome and No need for complicated operations,
It has the advantage that the entire manufacturing process can be carried out in a short time with simple operations, and furthermore, since no precipitate is generated during neutralization and concentration, there is no loss of filtrate during the filtration process. , a large yield compared to the amount of raw materials used, which is 1.3 to 1.4 times that of the conventional method, can be obtained, and a large amount of product protein fire extinguishing agent can be produced. It is possible.
Claims (1)
スルファミン酸によつて中和させることを特徴とするた
ん白泡消火薬剤の製造方法。(1) Protein substances hydrolyzed by alkali,
A method for producing a protein foam fire extinguishing agent, characterized by neutralizing it with sulfamic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12656786A JPS62281975A (en) | 1986-05-30 | 1986-05-30 | Production of protein fire extinguishing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12656786A JPS62281975A (en) | 1986-05-30 | 1986-05-30 | Production of protein fire extinguishing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62281975A true JPS62281975A (en) | 1987-12-07 |
| JPH0461666B2 JPH0461666B2 (en) | 1992-10-01 |
Family
ID=14938358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12656786A Granted JPS62281975A (en) | 1986-05-30 | 1986-05-30 | Production of protein fire extinguishing agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62281975A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012024255A (en) * | 2010-07-22 | 2012-02-09 | J-Style Co Ltd | Method for manufacturing fire extinguishing agent |
-
1986
- 1986-05-30 JP JP12656786A patent/JPS62281975A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012024255A (en) * | 2010-07-22 | 2012-02-09 | J-Style Co Ltd | Method for manufacturing fire extinguishing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0461666B2 (en) | 1992-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3852266A (en) | Process for producing 5-iodo-deoxy-uridine | |
| NO124922B (en) | ||
| JPS62281975A (en) | Production of protein fire extinguishing agent | |
| JPS60258123A (en) | Method of obtaining factor xiii specimen and use | |
| NO152778B (en) | PROCEDURE AND APPARATUS FOR "SAND BLASTING" WITH PARTICLES OF SUBLIMABLE MATERIAL | |
| US1758528A (en) | Production of titanium dioxide | |
| US1382165A (en) | Process of making fluorids | |
| JPS5935B2 (en) | Purification method of urokinase | |
| US2394570A (en) | Production of potassium chloride and magnesia | |
| US3753900A (en) | Process for the removal of sulphate from brines | |
| JPS63192745A (en) | Isolation of l-amino acid | |
| US1984146A (en) | Production of disodium phosphate | |
| JPS6327472A (en) | Manufacture of sodium salt aqueous solution of methionine | |
| US1359011A (en) | Process of making potash alum | |
| US1402173A (en) | Process for obtaining potassium chloride | |
| US3300384A (en) | Process for the production of pure preparations of the kallikrein inactivator | |
| US3741872A (en) | Process for purifying enzymes of the asparaginase-type | |
| US1156388A (en) | Process of obtaining potassium chlorid. | |
| US1209245A (en) | Method of making magnesium chlorid and the like. | |
| JPS6054037B2 (en) | Manufacturing method of elastase | |
| US449839A (en) | Process of preparing pepsin | |
| GB770855A (en) | Improvements in or relating to process of recovering glutamic acid | |
| KR19980041691A (en) | Method for producing chondroitin sulfate and its sodium salt from shark bone or cartilage | |
| US1450975A (en) | Process for the manufacture of borax and boric acid | |
| US1415308A (en) | Decomposition of aluminum sulphate, etc. |