JPS59142833A - Spray roasting method - Google Patents
Spray roasting methodInfo
- Publication number
- JPS59142833A JPS59142833A JP1504583A JP1504583A JPS59142833A JP S59142833 A JPS59142833 A JP S59142833A JP 1504583 A JP1504583 A JP 1504583A JP 1504583 A JP1504583 A JP 1504583A JP S59142833 A JPS59142833 A JP S59142833A
- Authority
- JP
- Japan
- Prior art keywords
- roasting
- oxygen
- spray
- furnace
- liquid material
- 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.)
- Pending
Links
- 239000007921 spray Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 19
- 239000002699 waste material Substances 0.000 abstract description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 12
- 239000000446 fuel Substances 0.000 abstract description 11
- 238000005507 spraying Methods 0.000 abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 238000005554 pickling Methods 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000011819 refractory material Substances 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract description 2
- 239000011344 liquid material Substances 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 20
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 12
- 239000003595 mist Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 239000000155 melt Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 235000013842 nitrous oxide Nutrition 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/001—Calcining
- B01J6/004—Calcining using hot gas streams in which the material is moved
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、液状物質たとえば酸廃液等の酸溶解物の噴霧
・焙焼方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for spraying and roasting a liquid substance, such as an acid solution such as an acid waste liquid.
従来、酸溶解物等の液状物質の噴霧焙焼において、酸溶
解物の噴霧は、（１）酸溶解物を１０〃程度に加圧し、
スプレーノズルを介して噴霧する方法（高圧スプレー法
）、または（２）酸溶解物を、５５程度の圧縮空気を噴
霧媒体としてミスト化して噴出させる方法（ミストスプ
レー法）により行なわれて、いた。Conventionally, in spray roasting of liquid substances such as acid melts, spraying of acid melts involves (1) pressurizing the acid melt to about 10 degrees;
This was carried out by a method of spraying through a spray nozzle (high-pressure spray method), or (2) a method of spraying the acid solution as a mist using compressed air of about 55% as a spray medium (mist spray method).
本発明は、後者のミストスプレー法の改良に係るもので
、具体的には次の事項について改善を図ることを目的と
するものである０
（１）酸溶解物の焙焼効率の向上
未反応物質が残存することがないよう完全な焙焼反応を
確保しながら、単位時間当たりの酸溶解物処理量を増大
させる。The present invention relates to the improvement of the latter mist spray method, and specifically aims to improve the following matters: (1) Improving the efficiency of roasting acid-dissolved materials. Increases the throughput of acid melt per unit time while ensuring a complete torrefaction reaction with no residual material.
（２）焙焼に要する燃料の節減
酸溶解物の単位処理量当たりの燃料［要用はを低減させ
る。(2) Savings on fuel required for torrefaction Reduces the amount of fuel required per unit throughput of acid melt.
（３）焙焼炉におけるＮＯｘ生成の抑制焙焼炉の構造の
うち、燃料の燃焼を行なう燃焼室におけるＮＯｘの生成
を抑制する。(3) Suppression of NOx generation in the roasting furnace In the structure of the roasting furnace, the generation of NOx is suppressed in the combustion chamber where fuel is burned.
（４）焙焼炉の炉体寿命の延長
焙焼炉特に燃焼室は高温度に達［７、そのため耐火物の
溶損、剥落が起こり易く寿命が知いので、焙焼炉の炉内
孟度をできるたけ低温度に保持する。(4) Extending the lifespan of the roasting furnace The roasting furnace, especially the combustion chamber, reaches high temperatures [7] Therefore, the refractories are prone to melting and flaking, and the lifespan is short. Keep the temperature as low as possible.
すなわち、本発明は、液状物質を噴霧焙焼する方法にお
いて、処理対象である液状物質の噴霧媒体として、酸素
富化した圧縮空気または水蒸気を使用することを特徴と
するものである。That is, the present invention is characterized in that, in a method of spray roasting a liquid substance, oxygen-enriched compressed air or water vapor is used as a spray medium for the liquid substance to be treated.
本発明の方法は、たとえば、鉄鋼酸洗設備がら発４１：
、する塩酸廃液等の酸廃液の再生回収および酸廃液中に
溶解している鉄分の回収において、酸溶解物を噴霧゛焙
焼する工程に好適に適用される。この方法によれば、酸
廃液の再生回収および酸廃液中の鉄分の回収において、
酸廃液をスプレー装置を介して焙焼炉内に噴霧し焙焼す
るに際し、噴霧媒体として、あらかじめ酸素富化された
空気または水蒸気が使用される。このように酸素富化さ
れた空気量たは水蒸気を噴霧媒体として使用することに
よって、被焙焼物である酸廃液ミストと酸素との接触を
強制的に促進し、十分な接触を行なわしめることができ
る〇コノ結果、焙焼の主反応２ＦｅＣ，ｆｈ −１２Ｈ
２０＋−０２−Ｆｅ２Ｏ３＋４ＨＣｌ↑において、酸廃
液ミストの酸化分解速度を大きくし、焙焼効率を向上さ
せることができる。より低い炉内温度の下で反応を終結
せしめることができる。The method of the present invention can be applied, for example, to steel pickling equipment41:
It is suitably applied to the process of spraying and roasting the acid solution in the regeneration and recovery of acid waste solutions such as hydrochloric acid waste solutions and the recovery of iron dissolved in the acid waste solutions. According to this method, in the regeneration and recovery of acid waste liquid and the recovery of iron in acid waste liquid,
When the acid waste liquid is sprayed into the roasting furnace via a spray device and roasted, air or water vapor enriched with oxygen in advance is used as the spraying medium. By using the oxygen-enriched air volume or water vapor as the atomizing medium, it is possible to forcibly promote contact between the acid waste liquid mist, which is the object to be roasted, and oxygen, and to achieve sufficient contact. As a result, the main reaction of roasting 2FeC, fh -12H
In 20+-02-Fe2O3+4HCl↑, the oxidative decomposition rate of the acid waste liquid mist can be increased and the roasting efficiency can be improved. The reaction can be terminated at a lower furnace temperature.
一般に、炉内の０２分圧が低下するとＦ６２０３の生成
は不十分となり、その結果、回収酸化鉄に付着する塩素
分が多くなることが生じる。回収酸化鉄の品質としては
、その中に含１れる塩素分の量が特に重要であり、磁性
材料等に使用する場合には、塩素分は１１０００ｐｐ以
下が望ましい。回収酸化鉄中の塩素分を減少させるｌヒ
めには、（１）炉内温度を」二げる、伐）炉内０２濃度
を上げる、（３）酸廃液の液滴を小さくする、（４）処
理量を小さくする、のいずれか１つ以上を講じる必要が
ある。（１）〜（４）はそれぞれ相関関係がある。した
がって、いま（４）の処理量を大きくしたい場合には塩
素分を所定附に抑え一定の品質を確保するために（１）
〜（３）のいずれかを講じればよい。（２）の措置を講
す゛る場合には、他の条件一定のもとでは（１）の炉内
温度を下げることができる。Generally, when the 02 partial pressure in the furnace decreases, the generation of F6203 becomes insufficient, and as a result, the amount of chlorine adhering to the recovered iron oxide increases. Regarding the quality of recovered iron oxide, the amount of chlorine contained therein is particularly important, and when used for magnetic materials etc., the chlorine content is preferably 11,000 pp or less. To reduce the chlorine content in the recovered iron oxide, (1) lower the temperature in the furnace, increase the concentration in the furnace, (3) reduce the size of acid waste liquid droplets, ( 4) It is necessary to take one or more of the following measures to reduce the amount of processing. (1) to (4) are correlated with each other. Therefore, if you want to increase the processing amount in (4), in order to keep the chlorine content to a predetermined level and ensure a constant quality, (1)
Any one of (3) to (3) may be taken. When taking the measures in (2), the furnace temperature in (1) can be lowered under certain other conditions.
本発明は上記（２）の酸素濃度をにげる手段を功妙に達
成するものであるが、本発明において、酸素富化の好〜
ましい程度としては、酸素量２５〜４０係程度である。The present invention effectively achieves the above (2) means of reducing the oxygen concentration, but in the present invention, the preferred method for oxygen enrichment is
A desirable level is an oxygen amount of about 25-40%.
酸素量が２５係に満たない場合には、本発明による効果
が少なく、酸素量が４０係を超える場合には、酸素価格
と効果との関係で却って不経済である。When the amount of oxygen is less than 25 parts, the effect of the present invention is small, and when the amount of oxygen exceeds 40 parts, it is rather uneconomical due to the relationship between oxygen price and effect.
なお、この場合、焙焼炉廃熱等を利用して噴霧媒体を予
熱しておけば、上記した効果をさらに促進することがで
きる。In this case, if the spray medium is preheated using waste heat from the roasting furnace, the above-mentioned effects can be further promoted.
また、上記したように焙焼炉内の温度を比較的低く、す
なわち５００〜５３０℃程度とすることができるから、
燃焼室の熱負荷を低減することができる。In addition, as mentioned above, the temperature inside the roasting furnace can be kept relatively low, that is, about 500 to 530°C.
The heat load on the combustion chamber can be reduced.
一方、従来、焙焼反応に必要な酸素の供給は、過剰な量
の空気を燃焼装置を介して焙焼炉内に供給し、これによ
り焙焼炉内を酸化性雰囲気とすることにより行なわれて
いたが、本発明の方法では、噴霧媒体として十分な蚤の
酸素が供給される。したがって、燃焼装置を介して焙焼
反応用の酸素を供給する必要はなく、燃焼装置に分ける
過剰空気量を最少限度に削減し、理論空気量に近い空気
比で燃焼が行なうことができる０このようにして一燃焼
室熱負荷を低減すれば、燃焼室温度および火炎温度は降
下する。甘た空気量を低減させれば燃焼領域における酸
素濃度は低下して一般には火炎温度も降下する。これら
の相乗効果によってＮＯｘの生成は抑制されることとな
る。On the other hand, conventionally, the supply of oxygen necessary for the roasting reaction was carried out by supplying an excessive amount of air into the roasting furnace through a combustion device, thereby creating an oxidizing atmosphere inside the roasting furnace. However, in the method of the present invention, sufficient flea oxygen is supplied as the atomizing medium. Therefore, it is not necessary to supply oxygen for the torrefaction reaction through the combustion device, and the amount of excess air distributed to the combustion device can be reduced to the minimum limit, and combustion can be carried out at an air ratio close to the theoretical air amount. If the heat load on one combustion chamber is reduced in this way, the combustion chamber temperature and flame temperature will decrease. Reducing the amount of sweet air reduces the oxygen concentration in the combustion zone and generally lowers the flame temperature. These synergistic effects will suppress the generation of NOx.
なお、噴霧媒体に含まれる酸素は、燃料の燃焼反応には
関与せず、したがってＮＯｘの生成に対する影響は全く
ない。Note that the oxygen contained in the spray medium does not participate in the combustion reaction of the fuel and therefore has no effect on the production of NOx.
次に、本発明を図面に基いて説明する。Next, the present invention will be explained based on the drawings.
図面は、本発明方法を実施するための酸溶解物の噴霧焙
焼設備の概要図である。The drawing is a schematic diagram of a spray roasting facility for acid melts for carrying out the method of the invention.
図に示す噴霧焙焼設備において、峻別液配管１により送
給される塩酸廃液等の酸廃液は、スプレーヘッダー２を
介して焙焼炉３内に噴射される〇一方、噴射に際しては
、あらかじめ酸素富化された噴霧媒体が噴霧媒体配管４
を通ってスプレーヘッダー２に導入されるため、酸素と
十分な接触状態にある塩峻別７（ｌ ミストが得られる
０
焙焼炉３の内部は、これに伺設される燃焼室５において
燃料配管６、燃焼用空気配管７およびバーナー８を介し
て供給される燃料および空気の燃ｚ焼反応により、所定
の温度に保持される。In the spray roasting equipment shown in the figure, acid waste liquid such as hydrochloric acid waste liquid, which is sent through the separation liquid pipe 1, is injected into the roasting furnace 3 via the spray header 2. The oxygen-enriched atomizing medium is supplied to the atomizing medium line 4
Since the fuel is introduced into the spray header 2 through the spray header 2, a mist is obtained that is in sufficient contact with oxygen. 6. A predetermined temperature is maintained by the combustion reaction of the fuel and air supplied via the combustion air piping 7 and the burner 8.
この時、できる限り低空気化燃焼を行なうことが好−ま
しい。一般的には空燃比を１ ： １．０５程度才で下
げることができる。At this time, it is preferable to perform combustion with as little air as possible. Generally, the air-fuel ratio can be lowered by about 1:1.05.
上記のようにして得られる高温雰囲気中を重力により落
下する酸素り、チな液滴群、すなわち、酸素と十分な男
触状態にある峻別液ミストは、すみやかに酸化分解され
て酸化鉄と塩化水素となり、前者は回収酸化鉄取出［］
９かも、後背ｄ：塩酸ガス回収ダク）１０から焙焼炉１
外へ４フ１出される○
次に、本発明の効果を実施例ＶＣより説明する。The oxygen-rich droplets that fall by gravity in the high-temperature atmosphere obtained as described above, that is, the sharply separated liquid mist that is in sufficient contact with oxygen, are quickly oxidized and decomposed into iron oxide and chloride. The former becomes hydrogen, and the former is extracted from recovered iron oxide []
9, rear d: hydrochloric acid gas recovery duct) 10 to roasting furnace 1
4 F1 is taken out.Next, the effects of the present invention will be explained using Example VC.
実施例
コークス炉ガスを燃料とする炉内容積５００ ｍｒの塩
酸廃液・端焼炉において、廃酸噴霧媒体として酸素量３
０係に富化された圧力５．４野の圧縮空気を使用し、又
、燃焼における空気比を１１５として塩酸廃液の噴Ｍ焙
焼を行なったところ、下表に示すような結果が得られた
。Example In a hydrochloric acid waste liquid/end-burning furnace with an internal volume of 500 mr using coke oven gas as fuel, the amount of oxygen was 3 as the waste acid spray medium.
When the injection M roasting of hydrochloric acid waste liquid was carried out using compressed air enriched to 0% with a pressure of 5.4 mm and the air ratio in combustion was set to 115, the results shown in the table below were obtained. Ta.
以上のように、本発明の方法によれば生産性（ｔ８焼効
率）の向上、省エネルギー及び公害防止面の多岐にわた
り著しい効果を挙げることができる。又、焙焼炉内の温
度を低下させることができるので燃焼室熱負荷を小さぐ
することが可能になるから、それだけ１制大物の寿命を
延長することができることは明らかである。さらに、近
年における製鋼及び溶接等の各方面にわたるアルゴンの
需要拡大のすう勢に伴い、酸素が余剰となる傾向にある
から、この余剰酸素の活用の観点からも有効である０As described above, the method of the present invention can bring about significant effects in a wide range of areas, including improved productivity (T8 firing efficiency), energy saving, and pollution prevention. Furthermore, since the temperature inside the roasting furnace can be lowered, it is possible to reduce the heat load on the combustion chamber, and it is obvious that the life of the one-size large product can be extended accordingly. Furthermore, with the increasing demand for argon in various fields such as steel manufacturing and welding in recent years, there is a tendency for oxygen to become surplus, so it is also effective from the perspective of utilizing this surplus oxygen.
図面は、本発明方法′に使用される噴霧１＆焼設イ１ｉ
ｉｉの概要図である。
１・・酸洗液配管 ２・・スプレーヘッダー３・・Ｒ
ｆ、焼炉 ４・・噴霧媒体配管５・・燃焼室
６・・燃料配管
７・・燃焼用空気配管８・・バーナ
９・・回収酸化鉄取出口
１０・・塩酸ガス回収ダクト
特許出願人 住友金属工業株式会社代理人弁理士
永 井 義 久□、’、’ 、、ｉ、：、ｊ
パ）１１、・１・□ ；The drawings show the spraying step 1 and baking step 1i used in the method of the present invention.
FIG. 2 is a schematic diagram of ii. 1. Pickling liquid piping 2. Spray header 3..R
f, Furnace 4... Spray medium piping 5... Combustion chamber
6. Fuel piping 7. Combustion air piping 8. Burner 9. Recovered iron oxide outlet 10. Hydrochloric acid gas recovery duct Patent applicant Sumitomo Metal Industries Co., Ltd. Representative Patent Attorney
Yoshihisa Nagai□,',',,i,:,j
Pa) 11,・1・□;
Claims (1)
対象である液状物質の噴霧媒体として、あらかじめ酸素
富化した圧縮空気または水蒸気を使用することを特徴と
する液状物質の噴霧焙焼方法。(1) A method for spray roasting a liquid substance, characterized in that compressed air or steam enriched with oxygen in advance is used as a spray medium for the liquid substance to be treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1504583A JPS59142833A (en) | 1983-02-01 | 1983-02-01 | Spray roasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1504583A JPS59142833A (en) | 1983-02-01 | 1983-02-01 | Spray roasting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59142833A true JPS59142833A (en) | 1984-08-16 |
Family
ID=11877860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1504583A Pending JPS59142833A (en) | 1983-02-01 | 1983-02-01 | Spray roasting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59142833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002038819A3 (en) * | 2000-11-08 | 2002-09-26 | Hatch Ass Ltd | Process for regeneration of spent acid halide leach solutions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4858675A (en) * | 1971-11-22 | 1973-08-17 | ||
| JPS4868059A (en) * | 1971-12-17 | 1973-09-17 | ||
| JPS5190776A (en) * | 1975-02-07 | 1976-08-09 | ||
| JPS5233374A (en) * | 1975-09-09 | 1977-03-14 | Nippon Sanso Kk | Incinerater of refuse |
| JPS5321432A (en) * | 1976-08-10 | 1978-02-27 | Kubota Ltd | Combustion device |
| JPS5741521A (en) * | 1980-08-21 | 1982-03-08 | Daido Steel Co Ltd | Combustion method and combustion apparatus |
-
1983
- 1983-02-01 JP JP1504583A patent/JPS59142833A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4858675A (en) * | 1971-11-22 | 1973-08-17 | ||
| JPS4868059A (en) * | 1971-12-17 | 1973-09-17 | ||
| JPS5190776A (en) * | 1975-02-07 | 1976-08-09 | ||
| JPS5233374A (en) * | 1975-09-09 | 1977-03-14 | Nippon Sanso Kk | Incinerater of refuse |
| JPS5321432A (en) * | 1976-08-10 | 1978-02-27 | Kubota Ltd | Combustion device |
| JPS5741521A (en) * | 1980-08-21 | 1982-03-08 | Daido Steel Co Ltd | Combustion method and combustion apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002038819A3 (en) * | 2000-11-08 | 2002-09-26 | Hatch Ass Ltd | Process for regeneration of spent acid halide leach solutions |
| US6692719B1 (en) | 2000-11-08 | 2004-02-17 | Hatch Ltd. | Process for regeneration of acid halide solutions |
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