Products

Suppliers
Filter Gallery
93,927

Wholesale Refining Chemical

Products
Mining Chemical Plate Heat Exchanger Evaporative Condenser Air Cooler Oil Refining Metallurgy Reactor Chemical Product

Sorry! No matches were found.

Activated Bleaching Earth Price Oil Bleaching Chemicals for Refining Oil

Activated Bleaching Earth Price Oil Bleaching Chemicals for Refining Oil

1 kg (MOQ)
More
Main Products: Mineral Products, Cristobalite Sand/Powder, Silica Sand/Powder, Silicon Carbide, Quartz Products, Cement Silica, Silicon Gel, Coating Material, Calcined Kaolin Clay, Mica Products
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Shenyang Mstoney New Material Technology Co., Ltd.

Manufacturer/Factory

Liaoning, China Since 2022
Chat Now Send Inquiry
Sylic® Refining Agent 111B Pretreatment Auxiliary Textile Chemicals

Sylic® Refining Agent 111B Pretreatment Auxiliary Textile Chemicals

US $ 2-3 / kg FOB
1,000 kg (MOQ)
More
Environmental Protection : Yes
Contact Supplier
Audited Supplier Audited Supplier Since 2012
HANGZHOU TIANKUN CHEM CO., LTD.

Manufacturer/Factory

Zhejiang, China Since 2012
Chat Now Send Inquiry
Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining Activator

Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining Activator

1 Ton (MOQ)
More
Main Products: Dithiophosphate Series, Collector Ipetc, Depressant, Polymer Polyacrylamide, Sodium Cyanide Replacement, Carbon Depressant, Mineral Processing, Chemicals
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Y&X BEIJING TECHNOLOGY CO., LTD.

Manufacturer/Factory

Beijing, China Since 2019
Chat Now Send Inquiry
Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining

Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining

US $ 1,000 / Ton FOB
1 Ton (MOQ)
More
Habit Appellation : Special Reagent
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Y&X BEIJING TECHNOLOGY CO., LTD.

Manufacturer/Factory

Beijing, China Since 2019
Chat Now Send Inquiry
Specialized Aluminium Fluoride Incorporating Selective Chemical Compounds for Superior Aluminium Refining Results

Specialized Aluminium Fluoride Incorporating Selective Chemical Compounds for Superior Aluminium Refining Results

US $ 1,150-1,500 / Ton FOB
1 Ton (MOQ)
More
Main Products: Potassium Aluminum Fluoride, Potassium Cryolite, Synthetic Cryolite, Sodium Cryolite, Aluminum Fluoride, Aluminium Flluoride, Potassium Fluorotitanate, Potassium Fluoroborate, Soda Ash Light
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Jiaozuo Eversim Imp. &Exp. Co., Ltd

Manufacturer/Factory

Henan, China Since 2022
Chat Now Send Inquiry
Factory Supply Textile Pretreatment Agent Refining Agent as Dyeing Chemical

Factory Supply Textile Pretreatment Agent Refining Agent as Dyeing Chemical

US $ 1.3-1.7 / kg FOB
500 kg (MOQ)
More
Environmental Protection : Yes
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Zibo Green New Material Technology Co., Ltd.

Trading Company

Shandong, China Since 2017
Chat Now Send Inquiry
Anti Foam Dyeing Agent Refining Agent Dyeing Chemical with Apeo Free

Anti Foam Dyeing Agent Refining Agent Dyeing Chemical with Apeo Free

US $ 1.3-1.7 / kg FOB
500 kg (MOQ)
More
Main Products: Textile Chemical
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Zibo Green New Material Technology Co., Ltd.

Trading Company

Shandong, China Since 2017
Chat Now Send Inquiry
Environment Friendly Scouring Enzyme for Paper Pulp Chemical Refining Enzyme

Environment Friendly Scouring Enzyme for Paper Pulp Chemical Refining Enzyme

US $ 7-15 / kg FOB
1 kg (MOQ)
More
Environmental Protection : Yes
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Weifang Yuexiang Chemical Co., Ltd.

Manufacturer/Factory,Trading Company,Group Corporation

Shandong, China Since 2020
Chat Now Send Inquiry
Efficient Mining Chemical CuSO4 For Copper Refining In Mining

Efficient Mining Chemical CuSO4 For Copper Refining In Mining

US $ 1,000 / Ton FOB
1 Ton (MOQ)
More
Main Products: Dithiophosphate Series, Collector Ipetc, Depressant, Polymer Polyacrylamide, Sodium Cyanide Replacement, Carbon Depressant, Mineral Processing, Chemicals
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Y&X BEIJING TECHNOLOGY CO., LTD.

Manufacturer/Factory

Beijing, China Since 2019
Chat Now Send Inquiry
Oil Refining Industry Chemical Components of Solid Base on The Removal of H2s

Oil Refining Industry Chemical Components of Solid Base on The Removal of H2s

US $ 1,300 / Ton FOB
10 Tons (MOQ)
More
Status : Solid Catalyst
Contact Supplier
Audited Supplier Audited Supplier Since 2018
Mingshuo Environment Technology Group Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2018
Chat Now Send Inquiry
Gel Epoxy Series Weak Base Anion Exchange Resin for Antibiotic Refining, Amino Acid Separation and Lactic Acid Refining

Gel Epoxy Series Weak Base Anion Exchange Resin for Antibiotic Refining, Amino Acid Separation and Lactic Acid Refining

US $ 4.05-4.34 / Litre FOB
100 Litre (MOQ)
More
Main Products: Ion Exchange Resin, Organic Silicone Oil, Resin Catalyst
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shanghai Kaiping Resin Co., Ltd.

Manufacturer/Factory,Trading Company

Shanghai, China Since 2023
Chat Now Send Inquiry
Refractory Metallurgical Calcium-Aluminate Refining Flux Sintered for Refining Steel

Refractory Metallurgical Calcium-Aluminate Refining Flux Sintered for Refining Steel

US $ 200 / Ton FOB
50 Tons (MOQ)
More
Refractoriness (℃) : 1580< Refractoriness< 1770
Contact Supplier
Audited Supplier Audited Supplier Since 2012
Yuzhou Springday Industry Co.,Ltd

Manufacturer/Factory,Trading Company

Henan, China Since 2012
Chat Now Send Inquiry
Coal Active Carbon Granular Activated Carbon Alkali Coconut Shell Activated Carbon Powder Activated Carbon Acid
Bentonite Clay Free Sample Activated Bleaching Earth Activated Bleaching Clay Food Grade for Oil Refining

Bentonite Clay Free Sample Activated Bleaching Earth Activated Bleaching Clay Food Grade for Oil Refining

US $ 260-350 / Ton FOB
22 Tons (MOQ)
More
Main Products: PVC Resin, SLES, Sodium Benzoate
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Anhui Orient Import & Export Co., Ltd.

Trading Company

Anhui, China Since 2024
Chat Now Send Inquiry
High Iodine Activated Carbon Granular Water Treatment Activated Carbon for Gold Processing Recovery Refining

High Iodine Activated Carbon Granular Water Treatment Activated Carbon for Gold Processing Recovery Refining

US $ 0.62-1.35 / kg FOB
1,000 kg (MOQ)
More
Usage : Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Choice Chemicals Ltd.

Hunan, China Since 2021
Chat Now Send Inquiry
China Factory Cheap Food Grade Decolorization Wood Powder Activated Carbon for Beverage Food Mgs Sugar Oil Refining

China Factory Cheap Food Grade Decolorization Wood Powder Activated Carbon for Beverage Food Mgs Sugar Oil Refining

US $ 500 / Ton FOB
1 Ton (MOQ)
More
Main Products: Powder Activated Carbon, Granular Activate Carbon, Pelletized Activated Carbon, Honeycomb Activated Carbon, Wood Activated Carbon, Coconut Shell Activated Carbon, Filter Media
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Guangdong Tongke Activated Carbon Co., Ltd.

Guangdong, China Since 2023
Chat Now Send Inquiry
Good Price Calcium Grease 1kg Bag Use for Petrochemical General Machinery Oil Drilling Machinery and Oil Refining Machinery

Good Price Calcium Grease 1kg Bag Use for Petrochemical General Machinery Oil Drilling Machinery and Oil Refining Machinery

US $ 1.2-1.7 / kg FOB
1,000 kg (MOQ)
More
Application : Marine
Contact Supplier
Audited Supplier Audited Supplier Since 2022
PUYANG XINYE SPECIAL LUBRICATING OIL AND GREASE CO.,LTD.

Manufacturer/Factory,Trading Company

Henan, China Since 2022
Chat Now Send Inquiry
Zhongtai 98.5%Flake Naoh Sodium Hydroxide Caustic Soda Used in Papermaking, Textile, Oil Refining, Chemical Industry

Zhongtai 98.5%Flake Naoh Sodium Hydroxide Caustic Soda Used in Papermaking, Textile, Oil Refining, Chemical Industry

US $ 531-597 / Ton FOB
17 Tons (MOQ)
More
Main Products: PVC Resin, Caustic Soda, PVC Paste Resin, CPVC, Pet, Pbat, CPE, Viscose Fiber, Viscose Yarn, Cotton Yarn
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Xinjiang Zhongtai Import And Export Co., Ltd.

Manufacturer/Factory

Xinjiang, China Since 2022
Chat Now Send Inquiry
Coconut Shell Activated Carbon Particle Activated Carbon Water Treatment Activated Carbon for Gold Processing Recovery Refining

Coconut Shell Activated Carbon Particle Activated Carbon Water Treatment Activated Carbon for Gold Processing Recovery Refining

US $ 4.2-5.1 / kg FOB
1,000 kg (MOQ)
More
Ph Value : 9-11
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Lingshou Jiaqi Mineral Processing Factory

Manufacturer/Factory

Hebei, China Since 2024
Chat Now Send Inquiry
Concentrated Sulfuric Acid Used in Petroleum Refining CAS 7664-93-9

Concentrated Sulfuric Acid Used in Petroleum Refining CAS 7664-93-9

US $ 160-210 / Ton FOB
10 Tons (MOQ)
More
Main Products: Formic Acid, Sodium Formate, Hydrochloric Acid, Sulfuric Acid, Boric Acid, Borax, Ammonium Chloride, Calcium Carbide, Oxalic Acid, Calcium Chloride
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Shijiazhuang Xinlongwei Chemical Co., Ltd.

Manufacturer/Factory,Trading Company,Group Corporation

Hebei, China Since 2014
Chat Now Send Inquiry
China Factory Cheap Food Grade Coal Based Activated Carbon for Oil Refining

China Factory Cheap Food Grade Coal Based Activated Carbon for Oil Refining

1 Ton (MOQ)
More
Ph Value : 5-7
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shanxi Xinhua Carbon Technology Industry Co., Ltd

Manufacturer/Factory

Shanxi, China Since 2024
Chat Now Send Inquiry
Related Videos
  • What is Activated Bleaching Earth Price Oil Bleaching Chemicals for Refining Oil
    What is Activated Bleaching Earth Price Oil Bleaching Chemicals for Refining Oil
    Negotiable
    1 kg (MOQ)
    Contact Supplier
  • What is Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining Activator
    What is Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining Activator
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
  • What is Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining
    What is Y&X Efficient Mining Chemical CuSO4 For Copper Refining In Mining
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
  • What is Specialized Aluminium Fluoride Incorporating Selective Chemical Compounds for Superior Aluminium Refining Results
    What is Specialized Aluminium Fluoride Incorporating Selective Chemical Compounds for Superior Aluminium Refining Results
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
Coconut Shell Activated Carbon Price for Recovery Refining

Coconut Shell Activated Carbon Price for Recovery Refining

US $ 1,070-1,500 / Ton FOB
25,000 Tons (MOQ)
More
Main Products: Chemicals, Food Additive, Water Treatment Chemical, Detergent Chemical, Cosmetic Chemical
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hebei Chemtics Technology Co. Ltd

Manufacturer/Factory,Trading Company

Hebei, China Since 2024
Chat Now Send Inquiry
Factory Sale Golden Refining Industrial Waste Gas Purification Water Purification Nut Shell Activated Carbon

Factory Sale Golden Refining Industrial Waste Gas Purification Water Purification Nut Shell Activated Carbon

US $ 1,900-2,400 / Ton FOB
1 Ton (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Zhulin Activated Carbon Development Co., Ltd.

Manufacturer/Factory

Henan, China Since 2023
Chat Now Send Inquiry
Carbon Active Charcoal Granular Activated Carbon for Gold Refining Water Purification

Carbon Active Charcoal Granular Activated Carbon for Gold Refining Water Purification

US $ 1,388-1,688 / Ton FOB
1 Ton (MOQ)
More
Main Products: Activated Carbon, Poly Aluminum Chloride, Polyacrylamide, Fiber Ball Filter, Chemicals, PAC, Anthracite, Water Purification Filter, Ttca, Activated Charcoal
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Henan Lvyuan Water Treatment Technology Co., Ltd.

Manufacturer/Factory

Henan, China Since 2019
Chat Now Send Inquiry
Coconut Shell Activated Carbon Granular Activated Carbon Water Treatment Activated Carbon for Gold Processing Recovery Refining

Coconut Shell Activated Carbon Granular Activated Carbon Water Treatment Activated Carbon for Gold Processing Recovery Refining

US $ 0.5-1.6 / kg FOB
10 kg (MOQ)
More
Specific Surface Area : 1200-1500 m�/g
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hebei Best New Material Technology Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2024
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

85% 75% Food Grade Phosphoric Acid for Sugar Refining

85% 75% Food Grade Phosphoric Acid for Sugar Refining

US $ 800-1,200 / Ton FOB
25 Tons (MOQ)
More
Main Products: Polyaluminium Chloride, Sodium Carbonate, Aluminium Sulfate, Paper Wet Strength Agent, Defoamer, Sodium Chloride, Polyacrylamide
Contact Supplier
Audited Supplier Audited Supplier Since 2018
Fujian Fkh Chemicals Co., Ltd.

Manufacturer/Factory,Trading Company

Fujian, China Since 2018
Chat Now Send Inquiry
99.9%/99.999% Hydrogen Chloride HCl Gas for Metal Refining & Cleaning Competitive Price

99.9%/99.999% Hydrogen Chloride HCl Gas for Metal Refining & Cleaning Competitive Price

US $ 5.5-7.5 / kg FOB
1 kg (MOQ)
More
Constituent : Industrial Pure Air
Contact Supplier
Since 2023
Chengdu First Industrial Gas Co., Ltd.

Trading Company

Sichuan, China Since 2023
Chat Now Send Inquiry
Petroleum Chemical Refining 4A Molecular Sieve Adsorbents for Liquid Drying

Petroleum Chemical Refining 4A Molecular Sieve Adsorbents for Liquid Drying

US $ 1-2 / kg FOB
5 kg (MOQ)
More
Main Products: 3A 4A 5A Molecular Sieves, Li-X Molecular Sieve, 13X-O2 Molecular Sieve, 13X-HP Molecular Sieve, 13X-APG Molecular Sieve, Zeolite, Activated Alumina, Molecular Sieve Raw Powder, Activated Molecular Sieve Powder, Molecular Sieve for Natural Gas Purification
Contact Supplier
Since 2023
Chemequip New Material Ltd.

Manufacturer/Factory

Anhui, China Since 2023
Chat Now Send Inquiry
Bulk Coconut Shell Activated Carbon Price for Gold Processing Recovery Refining with Cheap Price From China Suppliers

Bulk Coconut Shell Activated Carbon Price for Gold Processing Recovery Refining with Cheap Price From China Suppliers

US $ 1,100-1,580 / Ton FOB
1 Ton (MOQ)
More
Appearance : Granular
Contact Supplier
Since 2022
Ningxia Yongruida Carbon Co., Ltd.

Manufacturer/Factory,Trading Company

Ningxia, China Since 2022
Chat Now Send Inquiry
China Products/Suppliers. Wholesale Food Grade Glycerin 99.7% Glycerin 56-81-5

China Products/Suppliers. Wholesale Food Grade Glycerin 99.7% Glycerin 56-81-5

US $ 760-800 / Ton FOB
20 Tons (MOQ)
More
Main Products: Citric Acid, PVC Resin, HDPE, Paraffin Wax
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Inner Mongolia Dingyu Import and Export Co., Ltd.

Manufacturer/Factory,Trading Company

Inner Mongolia, China Since 2022
Chat Now Send Inquiry
Refining Animal and Vegetable Fats - High-Purity Caustic Soda Flakes From Chinese Factory

Refining Animal and Vegetable Fats - High-Purity Caustic Soda Flakes From Chinese Factory

US $ 300-500 / Ton FOB
26 Tons (MOQ)
More
Usage : Industrial Alkali
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Shandong Qibo New Energy Co., Ltd.

Trading Company

Shandong, China Since 2022
Chat Now Send Inquiry
Coconut Shell Activated Carbon Granular Activated Carbon Water Treatment Activated Carbon for Gold Processing Recovery Refining

Coconut Shell Activated Carbon Granular Activated Carbon Water Treatment Activated Carbon for Gold Processing Recovery Refining

US $ 1,485-5,200 / kg FOB
1,000 kg (MOQ)
More
Main Products: Alumina Ceramic, Zirconia Ceramic, Carbon Black, Sodium Bicarbonate, Soda Ash, Polyaluminium Chloride, Water Treatment Chemical, Aluminium Sulphate, Sodium Metabisulphite, Hydrated Lime
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Yantai Wenxu Industrial Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2019
Chat Now Send Inquiry
Supply Customized Wood Powder Activated Carbon for Organic Solvent Refining

Supply Customized Wood Powder Activated Carbon for Organic Solvent Refining

US $ 765-1,750 / Ton FOB
1 Ton (MOQ)
More
Desiccant : Chemical Desiccant
Contact Supplier
Audited Supplier Audited Supplier Since 2018
Gongyi Fengtai Refractory Abrasive Co., Ltd.

Manufacturer/Factory,Trading Company

Henan, China Since 2018
Chat Now Send Inquiry
China Factory 98.5% Caustic Soda Flake CAS 1310-73-2/ Sodium Hydroxide Tablets for De-Greasing Metals, Oil Refining, and Making Dyes and Bleaches

China Factory 98.5% Caustic Soda Flake CAS 1310-73-2/ Sodium Hydroxide Tablets for De-Greasing Metals, Oil Refining, and Making Dyes and Bleaches

US $ 300-500 / Ton FOB
25 Tons (MOQ)
More
Main Products: Formic Acid, Caustic Soda, Isopropyl Alcohol, Cis-Butenedioic Anhydride
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Qingdao Longshore Chemical Co., Ltd

Manufacturer/Factory

Shandong, China Since 2022
Chat Now Send Inquiry
Petrochemical Refining 58/60/62 Fully Refined Paraffin Wax for Candle

Petrochemical Refining 58/60/62 Fully Refined Paraffin Wax for Candle

US $ 945-995 / Ton FOB
1 Ton (MOQ)
More
Production Methods : Distillation
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shandong Asgard Import&Export Co., Ltd

Manufacturer/Factory,Trading Company

Shandong, China Since 2023
Chat Now Send Inquiry
New Product 96% Magnesium Oxide Used in Heavy Metal Refining MGO

New Product 96% Magnesium Oxide Used in Heavy Metal Refining MGO

US $ 160-230 / Ton FOB
10 Tons (MOQ)
More
Main Products: TiO2, Rutile Sand, Mineral, Inorganic Chemicals, Pigments, Dyestuff, Agricultural Chemicals
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hebei Yingye New Energy Technology Co., Ltd

Manufacturer/Factory,Trading Company

Hebei, China Since 2024
Chat Now Send Inquiry
1050 Iodine Value Activated Carbon for Gold Refining

1050 Iodine Value Activated Carbon for Gold Refining

US $ 600-1,500 / Ton FOB
1 Ton (MOQ)
More
Usage : Water Treatment Chemicals
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Ningxia Baiyun Carbon Co., Ltd.

Manufacturer/Factory,Trading Company

Ningxia, China Since 2019
Chat Now Send Inquiry
Mining Chemical Plate Heat Exchanger Evaporative Condenser Air Cooler Oil Refining Metallurgy Reactor Chemical Product
View More

Related Searches

Chemical Chemical Powder Dry Chemical Powder Rubber Chemical Agriculture Chemical Chemical Sheet Chemical Light Coating Chemical Chemical Raw Liquid Chemical

Browse by Categories

Home > Chemicals > Active Carbon > Coal Active Carbon
1/834
TOP

Search Filter

Categories

More Less
  • Coal Active Carbon
  • Granular Activated Carbon
  • Alkali
  • Coconut Shell Activated Carbon
  • Powder Activated Carbon
  • Acid
  • Water Treatment Chemical
  • Chemical Auxiliary
  • Textile Auxiliary Agent
  • Desiccant & Sorbent

Application Industry

More Less
  • Industry

Classification

More Less
  • Homogeneous Catalysts
  • Biocatalysts
  • Heterogeneous Catalysts

Response Type

More Less
  • Polymerization
  • Oxidation

Status

More Less
  • Liquid Catalyst
  • Solid Catalyst

Usage

More Less
  • Positive Catalyst
  • Negative Catalyst

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Group Corporation
  • Individuals/SOHO
  • Other

Company Location

More Less
  • Shandong
  • Henan
  • Hebei
  • Jiangsu
  • Guangdong
  • Liaoning
  • Zhejiang
  • Hunan
  • Shanghai
  • Tianjin
  • Jiangxi
  • Beijing
  • Anhui
  • Shanxi
  • Chongqing
  • Sichuan
  • Inner Mongolia
  • Hubei
  • Ningxia
  • Shaanxi
  • Fujian
  • Hainan
  • Qinghai
  • Gansu
  • Guangxi
  • Yunnan
  • Guizhou
  • Hongkong S.A.R.
  • Jilin
  • Heilongjiang
  • Xinjiang
Reset Done