CN1603396A - Method for producing high-efficiency washing soap powder by using sewer oil or swill oil - Google Patents
Method for producing high-efficiency washing soap powder by using sewer oil or swill oil Download PDFInfo
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- CN1603396A CN1603396A CN 200410035710 CN200410035710A CN1603396A CN 1603396 A CN1603396 A CN 1603396A CN 200410035710 CN200410035710 CN 200410035710 CN 200410035710 A CN200410035710 A CN 200410035710A CN 1603396 A CN1603396 A CN 1603396A
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Abstract
The invention discloses a kind of use ditch oil or slops incompatible highly effective washes clothes with the soap powder method, including the ditch oil or slops the incompatible pretreatment, the ditch oil or slops the incompatible acidification, the ditch oil or slops the incompatible saponification, the saponified fluid synergize, bestows on the shape, makes grain, is dry and so on the step. The invention method, both reduced the ditch oil either slops incompatibly and has stopped up the derelict land ditch oil to the environment pollution from the source or slops incompatible two edible, has guaranteed people's health, moreover also provides the sufficient raw material supply for the fat chemistry, simultaneously this method also has the soap powder decontamination strength which the production cost low, makes to be strong, not injurying also the non- pollution characteristic, has the better application promotion value.
Description
Technical field
The present invention relates to a kind of production method of soap powder, relate in particular to a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing.
Background technology
Along with growth in the living standard, the consumption of various food is also strengthening gradually, the remaining food of people's meals, each big cafe and food processing enterprises depleted grease in the daily life, scrub that the grease of waste water retention is also increasing rapidly behind the tableware, and these grease majorities that are regarded as rubbish usually enter water drain, form the sewer oil that people usually mention.Because the sewer oil biological degradability is very slow, causes the pollution of the face of land and geology water, brought harm seriously to ecotope.
The problem how sewer oil or swill oil are handled is the problem that people pay close attention to always.And have people's interests to smoke the heart now unexpectedly, and sewer oil or swill oil recovery are come, sell as new edible oil, bring very big infringement for people's physical and mental health, and cause serious social danger.Therefore, realize sewer oil or swill oil handling and utilization as early as possible, it being reached not only reduce environmental pollution but also can utilization of waste material, and bring into play the purpose of the use value of sewer oil or swill oil to greatest extent, is that present sewer oil or swill oil are handled the scientific research task that needs to be resolved hurrily in the research.By retrieval, about sewer oil or swill oil handling and application, the method that sewer oil after particularly utilization is handled or swill oil are produced soap powder yet there are no report.
Summary of the invention
Deficiency at above-mentioned sewer oil or swill oil processing and application method, particularly to the sewer oil after utilize handling or the deficiency of swill oil deep processing side, the problem to be solved in the present invention provides a kind ofly utilizes sewer oil or swill oil production efficiently to do washing with the method for soap powder.This method has processing unit characteristics simple, with low cost, free from environmental pollution.
The present invention utilizes sewer oil or swill oil production efficiently to do washing with the method for soap powder, is made up of following step:
(1) sewer oil or the swill oil with 500 weight parts adds in the enamel reactor, adds clear water 300～400 weight parts again, is warming up to 35 ℃～80 ℃, stirs 1～2 hour, dissolves mixing;
(2) in above-mentioned retort, add 25～50 weight part NaCl, stir also and be incubated 30 minutes simultaneously, leave standstill then, oil reservoir, water layer occur;
(3) branch is got oil reservoir, with 20～40 purpose strainer filterings, makes filtrate;
(4) claim filtrate 200～400 weight parts, put into retort, additional proportion is 1: 6～8 gac and atlapulgite mixture 20～40 weight parts, is warming up to 120 ℃～150 ℃, stirs 1～2 hour, with 40～80 purpose strainer filterings, produces filtrate;
(5) take by weighing step (4) and make filtrate 200～400 weight parts, add clear water 160～200 weight parts, volumetric concentration and be 50% or 76% sulfuric acid 30～70 weight parts, volumetric concentration and be 1% alkyl benzene sulphonate (ABS) 2～4 weight parts, stirring also is warming up to 100 ℃～120 ℃, reacted 10～15 hours, and oil, water layer occurred;
(6) isolate oil reservoir liquid, with 300～500 weight parts of the clear water more than 90 ℃, the concussion washing, triplicate is abandoned the swill profit, gets mixed fatty acid;
(7) take by weighing above-mentioned mixed fatty acid 200～400 weight parts, put into enamel reactor, the adding mass concentration is 25%～30% NaOH solution 40～120 weight parts, 70 ℃～80 ℃ of stirring and temperature controls, and saponification 4～6 hours reaches 7.5～7.8 to pH value and ends;
(8) take by weighing sodium-chlor 10～40 weight parts, join in the above-mentioned saponification liquor, carry out 3 times and saltout, separate soap glue;
(9) adding volumetric concentration in soap glue is 30% hydrogen peroxide 40～120 weight parts, decolours, and becomes white to end to the soap base color; add high effective additives 30～80 weight parts and inorganic salt 20～60 weight parts afterwards; behind the stirring and evenly mixing, use the tablets press granulation, make soap powder after the conventional drying.
Described preferred 55 ℃～70 ℃ of the mixing temperature that dissolves of above-mentioned steps (1).
Preferred 130 ℃～140 ℃ of the described temperature of above-mentioned steps (4).
The described sulfuric acid of above-mentioned steps (5) is 50～60 weight parts, alkyl benzene sulphonate (ABS) 3～4 weight parts preferably preferably.
The described NaOH solution of above-mentioned steps (7) is 70～100 weight parts preferably.
The described inorganic salt of above-mentioned steps (9) are mixtures of yellow soda ash, sodium sulfate, water glass, and its component ratio is: 1: (3～5): 1.
The amount of taking by weighing of the described inorganic salt of above-mentioned steps (9) is 40～50 weight parts preferably.
The described high effective additives of above-mentioned steps (9) is: the mixture of empgen BB, sodium lauryl sulphate, AOS powder, AEO-9,6501, EDTA, its component ratio is: (2～4): (5～7): (4～6): (4～6): (2～4): (0.7～1.3).
The described high effective additives of above-mentioned steps (9) is: the mixture of empgen BB, sodium lauryl sulphate, AOS powder, AEO-9,6501, EDTA, its component ratio is preferably: 3: 6: 5: 5: 3: 1.
Can also add its weight percent in the described soap powder of above-mentioned steps (9) and be 0.2%～0.4% essence.Described essence is the conventional essence that adopts of the industry.
The method that adopts the present invention to utilize sewer oil or swill oil to produce soap powder, can effectively solve as the sewer oil or the swill oil of refuse and handle and utilize problem, not only realized bringing into play to greatest extent the use value of sewer oil or swill oil, turn waste into wealth, also stopped the lawless person sewer oil or swill oil are reclaimed after processing again, be sold to the infringement that health of people causes as new edible oil, the secondary of having blocked useless sewer oil or swill oil from the source is edible, not only reduced environmental pollution but also guaranteed the people's health, also saved production cost, reduced productive expense, and provide competent raw material supply for oil chemistry again, become the strong resource of cleaning supplies, solved, have important social and be worth and good application and popularization value because of the short tremendous loss that causes to enterprise of grease.
The method that adopts the present invention to utilize sewer oil or swill oil to produce soap powder simultaneously, the degraded of sewer oil or swill oil is complete, availability is high, and soap powder moderate foam, the strong detergency made are not hindered skin, and without phosphorus, no benzene, thereby there is not any toxicity, side effect and to the recontaminate of environment.
The present invention is further illustrated below in conjunction with embodiment.
Embodiment
Embodiment 1:
(1) 500 kilograms sewer oil is added in 1500 liters the enamel reactor, add 400 kilograms in clear water again, be warming up to 60 ℃, stirred 1 hour, dissolve mixing;
(2) in above-mentioned retort, add 40 kilograms of NaCl, stir also and be incubated 30 minutes simultaneously, leave standstill then, oil reservoir, water layer occur;
(3) branch is got oil reservoir, with 30 purpose strainer filterings, makes filtrate;
(4) claim 300 kilograms of filtrates, put into 1000 liters of retort, additional proportion is 30 kilograms in 1: 8 gac and an atlapulgite mixture, is warming up to 140 ℃, stirs 1.5 hours, with 60 purpose strainer filterings, produces filtrate;
(5) take by weighing step (4) and make 400 kilograms of filtrates, add 180 kilograms in clear water, volumetric concentration and be 76% 50 kilograms in technical grade sulfuric acid, volumetric concentration and be 3 kilograms of 1% alkyl benzene sulphonate (ABS)s, stir and be warming up to 110 ℃, react 12 hours, oily, water layer occur;
(6) isolate oil reservoir liquid, with 400 kilograms in the clear water more than 90 ℃, the concussion washing, triplicate is abandoned the swill profit, gets mixed fatty acid;
(7) take by weighing 300 kilograms of above-mentioned mixed fatty acids, put into 1000 liters of enamel reactors, add mass concentration and be 70 kilograms of 30% NaOH solution, stir and 75 ℃ of temperature controls, saponification 5 hours reaches 7.6 to pH value and ends;
(8) take by weighing 30 kilograms in sodium-chlor, join in the above-mentioned saponification liquor, carry out 3 times and saltout, separate soap glue;
(9) adding volumetric concentration in soap glue is 80 kilograms of 30% hydrogen peroxide; decolour; becoming white to the soap base color ends; mixture inorganic salt 50 weight parts that add 60 kilograms of high effective additives and yellow soda ash, sodium sulfate, water glass afterwards; its component ratio is: 1: 4: 1; behind the stirring and evenly mixing, use the tablets press granulation, make soap powder after the conventional drying.
The described high effective additives of above-mentioned steps (9) is: the mixture of empgen BB, sodium lauryl sulphate, AOS powder, AEO-9,6501, EDTA, its component ratio is preferably: 3: 6: 5: 5: 3: 1.Also added its weight percent in the described soap powder of above-mentioned steps (9) and be 0.3% essence.
Embodiment 2:
(1) 500 kilograms swill oil is added in 1500 liters the enamel reactor, add 350 kilograms in clear water again, be warming up to 75 ℃, stirred 1 hour, dissolve mixing;
(2) in above-mentioned retort, add 35 kilograms of NaCl, stir also and be incubated 30 minutes simultaneously, leave standstill then, oil reservoir, water layer occur;
(3) branch is got oil reservoir, with 30 purpose strainer filterings, makes filtrate;
(4) claim 350 kilograms of filtrates, put into 1000 liters of retort, additional proportion is 40 kilograms in 1: 7 gac and an atlapulgite mixture, is warming up to 150 ℃, stirs 2 hours, with 70 purpose strainer filterings, produces filtrate;
(5) take by weighing step (4) and make 300 kilograms of filtrates, add 200 kilograms in clear water, volumetric concentration and be 50% 60 kilograms in sulfuric acid, volumetric concentration and be 4 kilograms of 1% alkyl benzene sulphonate (ABS)s, stir and be warming up to 120 ℃, react 10 hours, oily, water layer occur;
(6) isolate oil reservoir liquid, with 300 kilograms in the clear water more than 90 ℃, the concussion washing, triplicate is abandoned the swill profit, gets mixed fatty acid;
(7) take by weighing 250 kilograms of above-mentioned mixed fatty acids, put into 1000 liters of enamel reactors, add mass concentration and be 90 kilograms of 25% NaOH solution, stir and 80 ℃ of temperature controls, saponification 4.5 hours reaches 7.5 to pH value and ends;
(8) take by weighing 25 kilograms in sodium-chlor, join in the above-mentioned saponification liquor, carry out 3 times and saltout, separate soap glue;
(9) adding volumetric concentration in soap glue is 60 kilograms of 30% hydrogen peroxide; decolour; becoming white to the soap base color ends; mixture inorganic salt 40 weight parts that add 50 kilograms of high effective additives and yellow soda ash, sodium sulfate, water glass afterwards; its component ratio is: 1: 5: 1; behind the stirring and evenly mixing, use the tablets press granulation, make soap powder after the conventional drying.
The described high effective additives of above-mentioned steps (9) is: the mixture of empgen BB, sodium lauryl sulphate, AOS powder, AEO-9,6501, EDTA, its component ratio is preferably: 3: 5: 6: 5: 3: 1.Also added its weight percent in the described soap powder of above-mentioned steps (9) and be 0.2% essence.
Embodiment 3:
Press column weight amount proportioning and take by weighing raw material:
100 parts of sewer oils, 12 parts of 50% dilute sulphuric acids, 20 parts in caustic soda, gac and atlapulgite weight ratio are 1: 64 parts in mixture, 0.8 part of alkyl benzene sulphonate (ABS), 8 parts in sodium-chlor, 16 parts of high effective additives, 12 parts in the mixture of sodium sulfate, yellow soda ash, water glass.
Preparation method: 100 parts of sewer oils are added in the enamel reactor, add 100 parts in clear water, heat up 60 ℃, stirred one hour, and added 7 parts in sodium-chlor, stirred 0.5 hour, static layering, emit lower layer of water, add 4 parts of gacs and atlapulgite mixture then, heat up 150 ℃, stirred one hour, with 50 purpose filter screens, centrifuging is in filtrate suction enamel reactor, add-on is the water of filtrate 70%, 12 parts of 50% dilute sulphuric acids, 0.8 part of alkyl benzene sulphonate (ABS) heats up 120 ℃, reacted 10 hours, layering is upward washed three times with 90 ℃, makes mixed fatty acid.Taking by weighing 80 parts of mixed fatty acids adds in the enamel reactor; add 22 parts of 30%NaOH again; 80 ℃ of temperature controls, saponification 5.5 hours is carried out 3 times with 8 parts in sodium-chlor and is saltoutd; adding 12 parts of hydrogen peroxide then decolours only white to soap base color one-tenth; add 16 parts of high effective additives, 12 parts in the mixture of sodium sulfate, yellow soda ash, water glass (its component ratio is: 1: 3: 1) is behind the stirring and evenly mixing; use the tablets press granulation, make soap powder after the conventional drying.
Above-mentioned high effective additives is: the mixture of empgen BB, sodium lauryl sulphate, AOS powder, AEO-9,6501, EDTA, its component ratio is preferably: 3: 5: 6: 5: 3: 1.
Also added its weight percent in the above-mentioned soap powder simultaneously and be 0.3% essence.
Claims (10)
1, a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing, form by following step:
(1) sewer oil or the swill oil with 500 weight parts adds in the enamel reactor, adds clear water 300～400 weight parts again, is warming up to 35 ℃～80 ℃, stirs 1～2 hour, dissolves mixing;
(2) in above-mentioned retort, add 25～50 weight part NaCl, stir also and be incubated 30 minutes simultaneously, leave standstill then, oil reservoir, water layer occur;
(3) branch is got oil reservoir, with 20～40 purpose strainer filterings, makes filtrate;
(4) claim filtrate 200～400 weight parts, put into retort, additional proportion is 1: 6～8 gac and atlapulgite mixture 20～40 weight parts, is warming up to 120 ℃～150 ℃, stirs 1～2 hour, with 40～80 purpose strainer filterings, produces filtrate;
(5) take by weighing step (4) and make filtrate 200～400 weight parts, add clear water 160～200 weight parts, volumetric concentration and be 50% or 76% sulfuric acid 30～70 weight parts, volumetric concentration and be 1% alkyl benzene sulphonate (ABS) 2～4 weight parts, stirring also is warming up to 100 ℃～120 ℃, reacted 10～15 hours, and oil, water layer occurred;
(6) isolate oil reservoir liquid, with 300～500 weight parts of the clear water more than 90 ℃, the concussion washing, triplicate is abandoned the swill profit, gets mixed fatty acid;
(7) take by weighing above-mentioned mixed fatty acid 200～400 weight parts, put into enamel reactor, the adding mass concentration is 25%～30% NaOH solution 40～120 weight parts, 70 ℃～80 ℃ of stirring and temperature controls, and saponification 4～6 hours reaches 7.5～7.8 to pH value and ends;
(8) take by weighing sodium-chlor 10～40 weight parts, join in the above-mentioned saponification liquor, carry out 3 times and saltout, separate soap glue;
(9) adding volumetric concentration in soap glue is 30% hydrogen peroxide 40～120 weight parts, decolours, and becomes white to end to the soap base color; add high effective additives 30～80 weight parts and inorganic salt 20～60 weight parts afterwards; behind the stirring and evenly mixing, use the tablets press granulation, make soap powder after the conventional drying.
2. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 1 is characterized in that the described mixing temperature that dissolves of step (1) is 55 ℃～70 ℃.
3. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 1 is characterized in that the described temperature of step (4) is 130 ℃～140 ℃.
4. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 1 is characterized in that the described sulfuric acid of step (5) is that 50～60 weight parts, alkyl benzene sulphonate (ABS) are 3～4 weight parts.
5. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 1 is characterized in that the described NaOH solution of step (7) is 70～100 weight parts.
6. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 1 is characterized in that the described inorganic salt of step (9) are mixtures of yellow soda ash, sodium sulfate, water glass, and its component ratio is: 1: (3～5): 1.
7. as claim 1 or 6 described a kind of efficiently do washing methods with soap powder of sewer oil or swill oil production of utilizing, it is characterized in that the amount of taking by weighing of the described inorganic salt of step (9) is 40～50 weight parts.
8. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 1, it is characterized in that, the described high effective additives of step (9) is: the mixture of empgen BB, sodium lauryl sulphate, AOS powder, AEO-9,6501, EDTA, its component ratio is: (2～4): (5～7): (4～6): (4～6): (2～4): (0.7～1.3).
9. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 8, it is characterized in that, the described high effective additives of step (9) is: the mixture of empgen BB, sodium lauryl sulphate, AOS powder, AEO-9,6501, EDTA, its component ratio is: 3: 6: 5: 5: 3: 1.
10. a kind of efficiently do washing method with soap powder of sewer oil or swill oil production of utilizing as claimed in claim 1 is characterized in that, can also add its weight percent in the described soap powder of step (9) and be 0.2%～0.4% essence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410035710 CN1603396A (en) | 2004-08-31 | 2004-08-31 | Method for producing high-efficiency washing soap powder by using sewer oil or swill oil |
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| CN 200410035710 CN1603396A (en) | 2004-08-31 | 2004-08-31 | Method for producing high-efficiency washing soap powder by using sewer oil or swill oil |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102504986A (en) * | 2011-11-17 | 2012-06-20 | 苏州新区星火环境净化有限公司 | Method for producing industrial flaked soap by using drainage oil |
| CN102516840A (en) * | 2011-12-05 | 2012-06-27 | 华南理工大学 | Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent |
| CN102586030A (en) * | 2012-01-11 | 2012-07-18 | 常德市鼎城区博塔丝妮绿色生活研究所 | Diester quaternary ammonium salt softening agent prepared from organosilicon modified ditch oil and production method for diester quaternary ammonium salt softening agent |
| CN102586042A (en) * | 2012-03-02 | 2012-07-18 | 杨解定 | System device for extracting swill-cooked dirty oil as well as application method of extracted swill-cooked dirty oil and swill-cooked dirty oil |
| CN102807935A (en) * | 2012-08-13 | 2012-12-05 | 杨解定 | Method for producing soap powder by illegal cooking oil |
| CN103184117A (en) * | 2011-12-27 | 2013-07-03 | 施一飞 | Method for preparing detergent by using drainage oil |
| CN104327979A (en) * | 2014-10-09 | 2015-02-04 | 浙江农林大学 | Honeysuckle washing powder prepared from drainage oil and preparation method thereof |
| CN106318713A (en) * | 2015-06-24 | 2017-01-11 | 杨磊 | Methods for preparation and application of environmentally-friendly detergent containing waste oil |
| CN106675863A (en) * | 2016-12-28 | 2017-05-17 | 广西大学 | All-ecological degradable handmade soap for pet cleaning and preparation method thereof |
| CN106675862A (en) * | 2016-12-28 | 2017-05-17 | 广西大学 | All-ecologically degradable handmade soap for cleaning toilets, and preparation method of handmade soap |
| CN106675864A (en) * | 2016-12-28 | 2017-05-17 | 广西大学 | Full ecological degradation handmade soap for kitchen cleaning and preparation method thereof |
| CN107129838A (en) * | 2016-02-27 | 2017-09-05 | 李宇赛 | A kind of methanol fuel gain of heat agent preparation method |
| CN107287057A (en) * | 2017-06-26 | 2017-10-24 | 绵竹市天骄农业开发有限公司 | A kind of antibacterial manual soap powder of basic zirconium phosphate and preparation method thereof |
| CN107603790A (en) * | 2017-09-26 | 2018-01-19 | 湖南润农生态茶油有限公司 | A kind of tea oil soap powder and preparation method thereof |
| CN109055049A (en) * | 2018-07-27 | 2018-12-21 | 吉林农业科技学院 | A kind of method and kit using waste grease production germicidal soap |
| CN112195070A (en) * | 2020-11-23 | 2021-01-08 | 上海变宝科技有限公司 | Kitchen swill oil soap powder and manufacturing method thereof |
-
2004
- 2004-08-31 CN CN 200410035710 patent/CN1603396A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102504986A (en) * | 2011-11-17 | 2012-06-20 | 苏州新区星火环境净化有限公司 | Method for producing industrial flaked soap by using drainage oil |
| CN102516840A (en) * | 2011-12-05 | 2012-06-27 | 华南理工大学 | Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent |
| CN102516840B (en) * | 2011-12-05 | 2013-11-13 | 华南理工大学 | Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent |
| CN103184117A (en) * | 2011-12-27 | 2013-07-03 | 施一飞 | Method for preparing detergent by using drainage oil |
| CN102586030A (en) * | 2012-01-11 | 2012-07-18 | 常德市鼎城区博塔丝妮绿色生活研究所 | Diester quaternary ammonium salt softening agent prepared from organosilicon modified ditch oil and production method for diester quaternary ammonium salt softening agent |
| CN102586042A (en) * | 2012-03-02 | 2012-07-18 | 杨解定 | System device for extracting swill-cooked dirty oil as well as application method of extracted swill-cooked dirty oil and swill-cooked dirty oil |
| CN102807935A (en) * | 2012-08-13 | 2012-12-05 | 杨解定 | Method for producing soap powder by illegal cooking oil |
| CN104327979A (en) * | 2014-10-09 | 2015-02-04 | 浙江农林大学 | Honeysuckle washing powder prepared from drainage oil and preparation method thereof |
| CN106318713A (en) * | 2015-06-24 | 2017-01-11 | 杨磊 | Methods for preparation and application of environmentally-friendly detergent containing waste oil |
| CN107129838A (en) * | 2016-02-27 | 2017-09-05 | 李宇赛 | A kind of methanol fuel gain of heat agent preparation method |
| CN106675863A (en) * | 2016-12-28 | 2017-05-17 | 广西大学 | All-ecological degradable handmade soap for pet cleaning and preparation method thereof |
| CN106675862A (en) * | 2016-12-28 | 2017-05-17 | 广西大学 | All-ecologically degradable handmade soap for cleaning toilets, and preparation method of handmade soap |
| CN106675864A (en) * | 2016-12-28 | 2017-05-17 | 广西大学 | Full ecological degradation handmade soap for kitchen cleaning and preparation method thereof |
| CN107287057A (en) * | 2017-06-26 | 2017-10-24 | 绵竹市天骄农业开发有限公司 | A kind of antibacterial manual soap powder of basic zirconium phosphate and preparation method thereof |
| CN107603790A (en) * | 2017-09-26 | 2018-01-19 | 湖南润农生态茶油有限公司 | A kind of tea oil soap powder and preparation method thereof |
| CN109055049A (en) * | 2018-07-27 | 2018-12-21 | 吉林农业科技学院 | A kind of method and kit using waste grease production germicidal soap |
| CN112195070A (en) * | 2020-11-23 | 2021-01-08 | 上海变宝科技有限公司 | Kitchen swill oil soap powder and manufacturing method thereof |
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