China High Purity Best Selling Fumaric Acid CAS 110-17-8, Find details about China Fumaric Acid, Malic Acid from High Purity Best Selling Fumaric Acid CAS 110-17-8
Fumaric Acid is in the shape of colorless crystal, existing in many kinds of mushrooms and fresh beef. Fumaric Acid can be used in the manufacturing of unsaturated polyester resins. Fumaric acid is a food acidulent used for a long time because it is non-toxic. As a food additive, Fumaric Acid is an essential food ingredient in our food supply. |
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Usage of Fumaric Acid
Used as an acidulant, Fumaric Acid has bacteriostatic and antiseptic function. It also can be used as acidity regulator, acidifier, thermal-oxidative resist auxiliary, curing accelerant and spice. Used as acidic substance of effervescent agent, it can produce extended and exquisite bubbles. Fumaric acid can be used as pharmaceutical intermediate and optical bleaching agent. In pharmaceutical industry, it is used to produce alexipharmic sodium dimercaptosuccinate and ferrous fumarate. Fumaric acid is also used in manufacturing unsaturated polyester resin.
In recent ten years,We are constantly pursuing good service of supplying high quality of the product and competitive price.Our customers come from USA,India,Pakistan,Malaysia and some African countries.We have accumulated much import and export experience.
With our continuous efforts,we can provide the following series of certificates.If you have other needs, please let us know.
IN 25KG PP Bag or as requested
22 MT in 20'FCL.
Tianjin Hwashin Biotechnology Co., Ltd is located in the Tianjin Jinbin industrial park, which is 30km to Beijing Daxing International Airport, 70km to Tianjin Binhai International Airport, and 100km to the Xingang port.
Since 2004, We have devoted ourselves to the research & development, production and sales of food additives, feed additives products. Currently, we have 4 business departments: Food Additives department, Feed additives department, Cosmetics materials department, Industrial and Daily Chemicals department. We have 4 productions bases in Tianjin, Hebei provice, Shandong provice and Jiangsu provice. Besides, we worked with the leading Chinese biotechnical and chemical producers, we offer more than 200 products to over 10 countries in the world.
Hwashin team have excellent knowledge of biotechnology, chemicals and international business. Relied on a strict quality control system, through years of continuous technical innovation, the company could provide customers with first-class products and services.
1.To supply high-quality products with reasonable prices in food additive industry.
2.Research on the Market Knowledge & trend follow up and inform customers of price trends in the market timely.Timely Deliver & Stock Promotion on hot demanding products.
3.To follow orders and arrange shipping in time, providing complete documents for Customs clearance according to different export policies in different countries.
4.Reliable & Strictly follow the contract responsibility & after sales service
5.Professional on International Logistic Service, Legalization documents & Third Party Inspection process.
Our Aim is that the goods reach the customers quickly and safely.
With the spread of the epidemic abroad,the shipping market has been greatly affected.
Nomally, most suppliers can't rent a boat and book a space.
However,it not difficult for us to solve the problem.
We have joined the local freight forwarding alliance.
It help us to get the accurate shipping information and solve the shipping problem.
And then we can help customers to make accurate decisions.
1. What are your payment terms?
Usually L/C,D/P,T/T, western union, moneygram or paypal.
2.How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3. What's your delivery time?
lt depends on order quantity, usually we will arrange shipment within 3-20 days.
4.When can I get reply?
our sales manager will contact you within 12 hours.
5. How about the validity of products?
According to the products you order, usually 2 years.
6. What documents do you provide?
Usually, we provide Commercial nvoice, Packing List, Bill of Loading and OriginCertificate,etc.
lf there are any special requirements in your market, please let us know.
7. Can l get sample before order?
Yes, we can provide free sample once price is agreed, and you have to pay us the delivery fee in advance.If place following order after geting free sample, we will refund the shipping cost of free sample.
8.How to start orders or make payments?
A: You can send us your Purchase order, or just send a simple confirmation by email or by Trade Manager, after communication then we will send you Proforma Invoice with our bank details for final confirmation, then you can make payment accordingly.
Fumaric acid can be prepared by oxidation of pure benzene or by-product of phthalic anhydride production. Using o-xylene as raw material and fixed bed catalytic oxidation process technology to produce phthalic anhydride has become the mainstream of phthalic anhydride industry. In the phthalic anhydride process, o-xylene is heated and vaporized with hot air. Under the action of catalyst, phthalic anhydride and maleic anhydride are generated in a fixed bed reactor. After cooling, switching condensation and washing, maleic anhydride is transformed into maleic acid (maleic acid for short), with a mass fraction of about 25%.
Fumaric acid (fumaric acid) production process uses the characteristic that the solubility of fumaric acid in water is less than that of maleic acid in water to isomerize maleic acid into fumaric acid, so as to achieve separation from water.
The production process is mainly divided into two parts:
(1) Treatment of maleic acid: the maleic acid solution with mass fraction of 25% from the bottom of the washing tower cools the material to 10 ºC through the vacuum injection system and enters the crystallizer. The maleic acid containing phthalic acid crystals enters the container with agitator. After filtration, the maleic acid solution with mass fraction of 25% is separated from phthalic acid crystals, and part of the maleic acid solution is recycled to the washing tower to prevent phthalic acid precipitation.
The phthalic acid filter cake enters the dehydrator and is heated to 200 ~ 220 ºC. Phthalic acid is dehydrated to produce phthalic anhydride. The molten phthalic anhydride is sent to the phthalic anhydride rectification system, and the vapor phase products in the dehydration process are sent back to the washing system.
(2) Formation of fumaric acid: the maleic acid solution with mass fraction of 25% is preheated by preheater and enters the isomerization kettle. Under the condition of about 80 ºC and the action of catalyst thiourea, the isomerization reaction is completed, and the residence time is 6h. After the reaction is completed, the slurry enters the cooling dilution kettle by gravity. After the crude fumaric acid slurry is diluted to 12% by mass, it enters the fumaric acid cooling tank. The material is cooled to 40 ºC by the cooling capacity generated by the steam injection system. After passing through the intermediate material tank, it is pumped into the crude fumaric acid belt filter. After filtration, the crude fumaric acid is separated from the mother liquor and the mother liquor is sent to the outside of the battery limit for treatment. Crude fumaric acid is put into the dissolver and dissolved in the hot mother liquor of fumaric acid recrystallization. After dissolution, it is pumped into the pressure plate filter and continuously enters the tower equipped with activated carbon for decolorization. After decolorization, V it crystallizes at 40 ºC, is filtered and dried by belt filter, and is sent to packaging.